[{"language":[{"iso":"eng"}],"publication_identifier":{"issn":["0027-8424"],"eissn":["1091-6490"]},"publication_status":"published","issue":"52","volume":117,"pmid":1,"oa_version":"Published Version","abstract":[{"text":"Biological membranes can dramatically accelerate the aggregation of normally soluble protein molecules into amyloid fibrils and alter the fibril morphologies, yet the molecular mechanisms through which this accelerated nucleation takes place are not yet understood. Here, we develop a coarse-grained model to systematically explore the effect that the structural properties of the lipid membrane and the nature of protein–membrane interactions have on the nucleation rates of amyloid fibrils. We identify two physically distinct nucleation pathways—protein-rich and lipid-rich—and quantify how the membrane fluidity and protein–membrane affinity control the relative importance of those molecular pathways. We find that the membrane’s susceptibility to reshaping and being incorporated into the fibrillar aggregates is a key determinant of its ability to promote protein aggregation. We then characterize the rates and the free-energy profile associated with this heterogeneous nucleation process, in which the surface itself participates in the aggregate structure. Finally, we compare quantitatively our data to experiments on membrane-catalyzed amyloid aggregation of α-synuclein, a protein implicated in Parkinson’s disease that predominately nucleates on membranes. More generally, our results provide a framework for understanding macromolecular aggregation on lipid membranes in a broad biological and biotechnological context.","lang":"eng"}],"month":"12","intvolume":" 117","scopus_import":"1","main_file_link":[{"url":"https://www.biorxiv.org/content/10.1101/2019.12.22.886267v2","open_access":"1"}],"extern":"1","date_updated":"2021-11-25T15:35:58Z","_id":"10336","status":"public","article_type":"original","type":"journal_article","day":"16","publication":"Proceedings of the National Academy of Sciences","year":"2020","doi":"10.1073/pnas.2007694117","date_published":"2020-12-16T00:00:00Z","date_created":"2021-11-25T15:07:09Z","page":"33090-33098","acknowledgement":"We thank T. C. T. Michaels for reading the manuscript. This work was supported by the Academy of Medical Science (J.K. and A.Š.), the Cambridge Center for Misfolding Diseases (T.P.J.K.), the Biotechnology and Biological Sciences Research Council (T.P.J.K.), the Frances and Augustus Newman Foundation (T.P.J.K.), the European Research Council Grant PhysProt Agreement 337969, the Wellcome Trust (A.Š. and T.P.J.K.), the Royal Society (A.Š.), the Medical Research Council (J.K. and A.Š.), and the UK Materials and Molecular Modeling Hub for computational resources, which is partially funded by Engineering and Physical Sciences Research Council Grant EP/P020194/1.","publisher":"National Academy of Sciences","quality_controlled":"1","oa":1,"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","citation":{"ieee":"J. Krausser, T. P. J. Knowles, and A. Šarić, “Physical mechanisms of amyloid nucleation on fluid membranes,” Proceedings of the National Academy of Sciences, vol. 117, no. 52. National Academy of Sciences, pp. 33090–33098, 2020.","short":"J. Krausser, T.P.J. Knowles, A. Šarić, Proceedings of the National Academy of Sciences 117 (2020) 33090–33098.","apa":"Krausser, J., Knowles, T. P. J., & Šarić, A. (2020). Physical mechanisms of amyloid nucleation on fluid membranes. Proceedings of the National Academy of Sciences. National Academy of Sciences. https://doi.org/10.1073/pnas.2007694117","ama":"Krausser J, Knowles TPJ, Šarić A. Physical mechanisms of amyloid nucleation on fluid membranes. Proceedings of the National Academy of Sciences. 2020;117(52):33090-33098. doi:10.1073/pnas.2007694117","mla":"Krausser, Johannes, et al. “Physical Mechanisms of Amyloid Nucleation on Fluid Membranes.” Proceedings of the National Academy of Sciences, vol. 117, no. 52, National Academy of Sciences, 2020, pp. 33090–98, doi:10.1073/pnas.2007694117.","ista":"Krausser J, Knowles TPJ, Šarić A. 2020. Physical mechanisms of amyloid nucleation on fluid membranes. Proceedings of the National Academy of Sciences. 117(52), 33090–33098.","chicago":"Krausser, Johannes, Tuomas P. J. Knowles, and Anđela Šarić. “Physical Mechanisms of Amyloid Nucleation on Fluid Membranes.” Proceedings of the National Academy of Sciences. National Academy of Sciences, 2020. https://doi.org/10.1073/pnas.2007694117."},"title":"Physical mechanisms of amyloid nucleation on fluid membranes","author":[{"first_name":"Johannes","last_name":"Krausser","full_name":"Krausser, Johannes"},{"last_name":"Knowles","full_name":"Knowles, Tuomas P. J.","first_name":"Tuomas P. J."},{"last_name":"Šarić","full_name":"Šarić, Anđela","orcid":"0000-0002-7854-2139","id":"bf63d406-f056-11eb-b41d-f263a6566d8b","first_name":"Anđela"}],"article_processing_charge":"No","external_id":{"pmid":["33328273"]}},{"extern":"1","ddc":["611"],"date_updated":"2021-11-26T07:00:24Z","file_date_updated":"2021-11-26T06:50:09Z","_id":"10342","status":"public","keyword":["multidisciplinary"],"article_type":"original","type":"journal_article","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"file":[{"date_created":"2021-11-26T06:50:09Z","file_name":"2020_SciAdv_Tian.pdf","creator":"cchlebak","date_updated":"2021-11-26T06:50:09Z","file_size":10381298,"file_id":"10343","checksum":"3ba2eca975930cdb0b1ce1ae876885a7","success":1,"access_level":"open_access","relation":"main_file","content_type":"application/pdf"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["2375-2548"]},"publication_status":"published","issue":"48","volume":6,"pmid":1,"oa_version":"Published Version","abstract":[{"lang":"eng","text":"The blood-brain barrier is made of polarized brain endothelial cells (BECs) phenotypically conditioned by the central nervous system (CNS). Although transport across BECs is of paramount importance for nutrient uptake as well as ridding the brain of waste products, the intracellular sorting mechanisms that regulate successful receptor-mediated transcytosis in BECs remain to be elucidated. Here, we used a synthetic multivalent system with tunable avidity to the low-density lipoprotein receptor–related protein 1 (LRP1) to investigate the mechanisms of transport across BECs. We used a combination of conventional and super-resolution microscopy, both in vivo and in vitro, accompanied with biophysical modeling of transport kinetics and membrane-bound interactions to elucidate the role of membrane-sculpting protein syndapin-2 on fast transport via tubule formation. We show that high-avidity cargo biases the LRP1 toward internalization associated with fast degradation, while mid-avidity augments the formation of syndapin-2 tubular carriers promoting a fast shuttling across."}],"month":"11","intvolume":" 6","scopus_import":"1","main_file_link":[{"url":"https://www.biorxiv.org/content/10.1101/2020.04.04.025866v1","open_access":"1"}],"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","citation":{"ista":"Tian X, Leite DM, Scarpa E, Nyberg S, Fullstone G, Forth J, Matias D, Apriceno A, Poma A, Duro-Castano A, Vuyyuru M, Harker-Kirschneck L, Šarić A, Zhang Z, Xiang P, Fang B, Tian Y, Luo L, Rizzello L, Battaglia G. 2020. On the shuttling across the blood-brain barrier via tubule formation: Mechanism and cargo avidity bias. Science Advances. 6(48), eabc4397.","chicago":"Tian, Xiaohe, Diana M. Leite, Edoardo Scarpa, Sophie Nyberg, Gavin Fullstone, Joe Forth, Diana Matias, et al. “On the Shuttling across the Blood-Brain Barrier via Tubule Formation: Mechanism and Cargo Avidity Bias.” Science Advances. American Association for the Advancement of Science, 2020. https://doi.org/10.1126/sciadv.abc4397.","apa":"Tian, X., Leite, D. M., Scarpa, E., Nyberg, S., Fullstone, G., Forth, J., … Battaglia, G. (2020). On the shuttling across the blood-brain barrier via tubule formation: Mechanism and cargo avidity bias. Science Advances. American Association for the Advancement of Science. https://doi.org/10.1126/sciadv.abc4397","ama":"Tian X, Leite DM, Scarpa E, et al. On the shuttling across the blood-brain barrier via tubule formation: Mechanism and cargo avidity bias. Science Advances. 2020;6(48). doi:10.1126/sciadv.abc4397","ieee":"X. Tian et al., “On the shuttling across the blood-brain barrier via tubule formation: Mechanism and cargo avidity bias,” Science Advances, vol. 6, no. 48. American Association for the Advancement of Science, 2020.","short":"X. Tian, D.M. Leite, E. Scarpa, S. Nyberg, G. Fullstone, J. Forth, D. Matias, A. Apriceno, A. Poma, A. Duro-Castano, M. Vuyyuru, L. Harker-Kirschneck, A. Šarić, Z. Zhang, P. Xiang, B. Fang, Y. Tian, L. Luo, L. Rizzello, G. Battaglia, Science Advances 6 (2020).","mla":"Tian, Xiaohe, et al. “On the Shuttling across the Blood-Brain Barrier via Tubule Formation: Mechanism and Cargo Avidity Bias.” Science Advances, vol. 6, no. 48, eabc4397, American Association for the Advancement of Science, 2020, doi:10.1126/sciadv.abc4397."},"title":"On the shuttling across the blood-brain barrier via tubule formation: Mechanism and cargo avidity bias","author":[{"last_name":"Tian","full_name":"Tian, Xiaohe","first_name":"Xiaohe"},{"last_name":"Leite","full_name":"Leite, Diana M.","first_name":"Diana M."},{"first_name":"Edoardo","full_name":"Scarpa, Edoardo","last_name":"Scarpa"},{"first_name":"Sophie","full_name":"Nyberg, Sophie","last_name":"Nyberg"},{"last_name":"Fullstone","full_name":"Fullstone, Gavin","first_name":"Gavin"},{"last_name":"Forth","full_name":"Forth, Joe","first_name":"Joe"},{"first_name":"Diana","full_name":"Matias, Diana","last_name":"Matias"},{"first_name":"Azzurra","full_name":"Apriceno, Azzurra","last_name":"Apriceno"},{"full_name":"Poma, Alessandro","last_name":"Poma","first_name":"Alessandro"},{"first_name":"Aroa","full_name":"Duro-Castano, Aroa","last_name":"Duro-Castano"},{"full_name":"Vuyyuru, Manish","last_name":"Vuyyuru","first_name":"Manish"},{"first_name":"Lena","full_name":"Harker-Kirschneck, Lena","last_name":"Harker-Kirschneck"},{"last_name":"Šarić","orcid":"0000-0002-7854-2139","full_name":"Šarić, Anđela","id":"bf63d406-f056-11eb-b41d-f263a6566d8b","first_name":"Anđela"},{"first_name":"Zhongping","last_name":"Zhang","full_name":"Zhang, Zhongping"},{"last_name":"Xiang","full_name":"Xiang, Pan","first_name":"Pan"},{"first_name":"Bin","last_name":"Fang","full_name":"Fang, Bin"},{"first_name":"Yupeng","full_name":"Tian, Yupeng","last_name":"Tian"},{"last_name":"Luo","full_name":"Luo, Lei","first_name":"Lei"},{"full_name":"Rizzello, Loris","last_name":"Rizzello","first_name":"Loris"},{"first_name":"Giuseppe","last_name":"Battaglia","full_name":"Battaglia, Giuseppe"}],"external_id":{"pmid":["33246953"]},"article_processing_charge":"No","article_number":"eabc4397 ","day":"27","publication":"Science Advances","has_accepted_license":"1","year":"2020","doi":"10.1126/sciadv.abc4397","date_published":"2020-11-27T00:00:00Z","date_created":"2021-11-26T06:40:28Z","acknowledgement":"Funding: G.B. thanks the ERC for the starting grant (MEViC 278793) and consolidator award (CheSSTaG 769798), EPSRC/BTG Healthcare Partnership (EP/I001697/1), EPSRC Established Career Fellowship (EP/N026322/1), EPSRC/SomaNautix Healthcare Partnership EP/R024723/1, and Children with Cancer UK for the research project (16-227). X.T. and G.B. thank that Anhui 100 Talent program for facilitating data sharing and research visits. A.D.-C. and L.R. acknowledge the Royal Society for a Newton fellowship and the Marie Skłodowska-Curie Actions for a European Fellowship. Author contributions: X.T. prepared and characterized POs, performed all the fast imaging in both conventional and STED microscopy, set up the initial BBB model, encapsulated the PtA2 in POs, and supervised the PtA2-PO animal work. D.M.L. prepared and characterized POs; performed all the permeability studies, PLA assays, WB and associated data analysis, and part of the colocalization assays; and performed experiments with the shRNA for knockdown of syndapin-2. E.S. prepared and characterized POs and performed part of colocalization assays and Cy7-labeled PO animal experiments. S.N. prepared and characterized POs and performed part of the colocalization and inhibition assays. G.F. designed, performed, and analyzed the agent-based simulations of transcytosis. J.F. designed the image-based algorithm to analyze the PLA data. D.M. prepared and characterized POs and helped with Cy7-labeled PO animal experiments. A.A. performed TEM imaging of the POs. A.P. and A.D.-C. synthesized the dye- and peptide-functionalized and pristine copolymers. M.V., L.H.-K., and A.Š. designed, performed, and analyzed the MD simulations. Z.Z. supervised and supported STED imaging. P.X., B.F., and Y.T. synthesized and characterized the PtA2 compound. L.L. performed some of the animal work. L.R. supported and helped with the BBB characterization. G.B. analyzed all fast imaging and supervised and coordinated the overall work. X.T., D.M.L., E.S., and G.B. wrote the manuscript. Competing interests: The authors declare that part of the work is associated with the UCL spin-out company SomaNautix Ltd. Data and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials. Additional data related to this paper may be requested from the authors.","quality_controlled":"1","publisher":"American Association for the Advancement of Science","oa":1},{"article_number":"228101","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","citation":{"apa":"Forster, J. C., Krausser, J., Vuyyuru, M. R., Baum, B., & Šarić, A. (2020). Exploring the design rules for efficient membrane-reshaping nanostructures. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.125.228101","ama":"Forster JC, Krausser J, Vuyyuru MR, Baum B, Šarić A. Exploring the design rules for efficient membrane-reshaping nanostructures. Physical Review Letters. 2020;125(22). doi:10.1103/physrevlett.125.228101","short":"J.C. Forster, J. Krausser, M.R. Vuyyuru, B. Baum, A. Šarić, Physical Review Letters 125 (2020).","ieee":"J. C. Forster, J. Krausser, M. R. Vuyyuru, B. Baum, and A. Šarić, “Exploring the design rules for efficient membrane-reshaping nanostructures,” Physical Review Letters, vol. 125, no. 22. American Physical Society, 2020.","mla":"Forster, Joel C., et al. “Exploring the Design Rules for Efficient Membrane-Reshaping Nanostructures.” Physical Review Letters, vol. 125, no. 22, 228101, American Physical Society, 2020, doi:10.1103/physrevlett.125.228101.","ista":"Forster JC, Krausser J, Vuyyuru MR, Baum B, Šarić A. 2020. Exploring the design rules for efficient membrane-reshaping nanostructures. Physical Review Letters. 125(22), 228101.","chicago":"Forster, Joel C., Johannes Krausser, Manish R. Vuyyuru, Buzz Baum, and Anđela Šarić. “Exploring the Design Rules for Efficient Membrane-Reshaping Nanostructures.” Physical Review Letters. American Physical Society, 2020. https://doi.org/10.1103/physrevlett.125.228101."},"title":"Exploring the design rules for efficient membrane-reshaping nanostructures","author":[{"last_name":"Forster","full_name":"Forster, Joel C.","first_name":"Joel C."},{"first_name":"Johannes","full_name":"Krausser, Johannes","last_name":"Krausser"},{"first_name":"Manish R.","full_name":"Vuyyuru, Manish R.","last_name":"Vuyyuru"},{"last_name":"Baum","full_name":"Baum, Buzz","first_name":"Buzz"},{"first_name":"Anđela","id":"bf63d406-f056-11eb-b41d-f263a6566d8b","last_name":"Šarić","orcid":"0000-0002-7854-2139","full_name":"Šarić, Anđela"}],"article_processing_charge":"No","external_id":{"pmid":["33315453"]},"acknowledgement":"We acknowledge support from EPSRC (J. C. F.), MRC (B. B. and A. Š.), the ERC StG 802960 “NEPA” (J. K. and A. Š.), the Royal Society (A. Š.), and the United Kingdom Materials and Molecular Modelling Hub for computational resources, which is partially funded by EPSRC (EP/P020194/1).","publisher":"American Physical Society","quality_controlled":"1","oa":1,"day":"23","publication":"Physical Review Letters","has_accepted_license":"1","year":"2020","date_published":"2020-11-23T00:00:00Z","doi":"10.1103/physrevlett.125.228101","date_created":"2021-11-26T07:10:43Z","_id":"10344","status":"public","type":"journal_article","article_type":"original","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"extern":"1","ddc":["530"],"date_updated":"2021-11-30T08:33:14Z","file_date_updated":"2021-11-26T07:16:49Z","oa_version":"Published Version","pmid":1,"abstract":[{"text":"In this study, we investigate the role of the surface patterning of nanostructures for cell membrane reshaping. To accomplish this, we combine an evolutionary algorithm with coarse-grained molecular dynamics simulations and explore the solution space of ligand patterns on a nanoparticle that promote efficient and reliable cell uptake. Surprisingly, we find that in the regime of low ligand number the best-performing structures are characterized by ligands arranged into long one-dimensional chains that pattern the surface of the particle. We show that these chains of ligands provide particles with high rotational freedom and they lower the free energy barrier for membrane crossing. Our approach reveals a set of nonintuitive design rules that can be used to inform artificial nanoparticle construction and the search for inhibitors of viral entry.","lang":"eng"}],"month":"11","intvolume":" 125","scopus_import":"1","main_file_link":[{"url":"https://www.biorxiv.org/content/10.1101/2020.02.27.968149v1","open_access":"1"}],"file":[{"relation":"main_file","access_level":"open_access","content_type":"application/pdf","success":1,"file_id":"10345","checksum":"fbf2e1415e332d6add90222d60401a1d","creator":"cchlebak","file_size":844353,"date_updated":"2021-11-26T07:16:49Z","file_name":"2020_PhysRevLett_Forster.pdf","date_created":"2021-11-26T07:16:49Z"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["0031-9007"],"eissn":["1079-7114"]},"publication_status":"published","issue":"22","volume":125},{"publication_status":"published","publication_identifier":{"issn":["1744-683X","1744-6848"]},"language":[{"iso":"eng"}],"volume":16,"issue":"47","abstract":[{"lang":"eng","text":"Tracing the motion of macromolecules, viruses, and nanoparticles adsorbed onto cell membranes is currently the most direct way of probing the complex dynamic interactions behind vital biological processes, including cell signalling, trafficking, and viral infection. The resulting trajectories are usually consistent with some type of anomalous diffusion, but the molecular origins behind the observed anomalous behaviour are usually not obvious. Here we use coarse-grained molecular dynamics simulations to help identify the physical mechanisms that can give rise to experimentally observed trajectories of nanoscopic objects moving on biological membranes. We find that diffusion on membranes of high fluidities typically results in normal diffusion of the adsorbed nanoparticle, irrespective of the concentration of receptors, receptor clustering, or multivalent interactions between the particle and membrane receptors. Gel-like membranes on the other hand result in anomalous diffusion of the particle, which becomes more pronounced at higher receptor concentrations. This anomalous diffusion is characterised by local particle trapping in the regions of high receptor concentrations and fast hopping between such regions. The normal diffusion is recovered in the limit where the gel membrane is saturated with receptors. We conclude that hindered receptor diffusivity can be a common reason behind the observed anomalous diffusion of viruses, vesicles, and nanoparticles adsorbed on cell and model membranes. Our results enable direct comparison with experiments and offer a new route for interpreting motility experiments on cell membranes."}],"oa_version":"Published Version","pmid":1,"main_file_link":[{"open_access":"1","url":"https://www.biorxiv.org/content/10.1101/2020.05.01.071761v1"}],"scopus_import":"1","intvolume":" 16","month":"10","date_updated":"2021-11-26T07:00:33Z","extern":"1","_id":"10341","article_type":"original","type":"journal_article","keyword":["condensed matter physics","general chemistry"],"status":"public","year":"2020","publication":"Soft Matter","day":"06","page":"10628-10639","date_created":"2021-11-26T06:29:41Z","date_published":"2020-10-06T00:00:00Z","doi":"10.1039/d0sm00712a","acknowledgement":"We thank Jessica McQuade for her input at the start of the project. We acknowledge support from the ERASMUS Placement Programme (V. E. D.), the UCL Institute for the Physics of Living Systems (V. E. D. and A. Š.), the UCL Global Engagement Fund (L. M. C. J.), and the Royal Society (A. Š.).","oa":1,"publisher":"Royal Society of Chemistry","quality_controlled":"1","citation":{"chicago":"Debets, V. E., L. M. C. Janssen, and Anđela Šarić. “Characterising the Diffusion of Biological Nanoparticles on Fluid and Cross-Linked Membranes.” Soft Matter. Royal Society of Chemistry, 2020. https://doi.org/10.1039/d0sm00712a.","ista":"Debets VE, Janssen LMC, Šarić A. 2020. Characterising the diffusion of biological nanoparticles on fluid and cross-linked membranes. Soft Matter. 16(47), 10628–10639.","mla":"Debets, V. E., et al. “Characterising the Diffusion of Biological Nanoparticles on Fluid and Cross-Linked Membranes.” Soft Matter, vol. 16, no. 47, Royal Society of Chemistry, 2020, pp. 10628–39, doi:10.1039/d0sm00712a.","ama":"Debets VE, Janssen LMC, Šarić A. Characterising the diffusion of biological nanoparticles on fluid and cross-linked membranes. Soft Matter. 2020;16(47):10628-10639. doi:10.1039/d0sm00712a","apa":"Debets, V. E., Janssen, L. M. C., & Šarić, A. (2020). Characterising the diffusion of biological nanoparticles on fluid and cross-linked membranes. Soft Matter. Royal Society of Chemistry. https://doi.org/10.1039/d0sm00712a","ieee":"V. E. Debets, L. M. C. Janssen, and A. Šarić, “Characterising the diffusion of biological nanoparticles on fluid and cross-linked membranes,” Soft Matter, vol. 16, no. 47. Royal Society of Chemistry, pp. 10628–10639, 2020.","short":"V.E. Debets, L.M.C. Janssen, A. Šarić, Soft Matter 16 (2020) 10628–10639."},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","article_processing_charge":"No","external_id":{"pmid":["33084724"]},"author":[{"first_name":"V. E.","last_name":"Debets","full_name":"Debets, V. E."},{"full_name":"Janssen, L. M. C.","last_name":"Janssen","first_name":"L. M. C."},{"id":"bf63d406-f056-11eb-b41d-f263a6566d8b","first_name":"Anđela","orcid":"0000-0002-7854-2139","full_name":"Šarić, Anđela","last_name":"Šarić"}],"title":"Characterising the diffusion of biological nanoparticles on fluid and cross-linked membranes"},{"acknowledgement":"We thank Melinda Duer, Patrick Mesquida, Lucy Colwell, Lucie Liu, Daan Frenkel, and Ivan Palaia for helpful discussions. We acknowledge support from the Engineering and Physical Sciences Research Council (A.E.H., L.K.D., and A.Š.), Biotechnology and Biological Sciences Research Council LIDo programme (N.G.G. and C.A.B.), the Royal Society (A.Š.), and the UK Materials and Molecular Modelling Hub for computational resources, which is partially funded by EPSRC ( EP/P020194/1).","oa":1,"quality_controlled":"1","publisher":"Cell Press","year":"2020","publication":"Biophysical Journal","day":"23","page":"1791-1799","date_created":"2021-11-26T07:27:24Z","doi":"10.1016/j.bpj.2020.09.013","date_published":"2020-09-23T00:00:00Z","citation":{"ista":"Hafner AE, Gyori NG, Bench CA, Davis LK, Šarić A. 2020. Modeling fibrillogenesis of collagen-mimetic molecules. Biophysical Journal. 119(9), 1791–1799.","chicago":"Hafner, Anne E., Noemi G. Gyori, Ciaran A. Bench, Luke K. Davis, and Anđela Šarić. “Modeling Fibrillogenesis of Collagen-Mimetic Molecules.” Biophysical Journal. Cell Press, 2020. https://doi.org/10.1016/j.bpj.2020.09.013.","short":"A.E. Hafner, N.G. Gyori, C.A. Bench, L.K. Davis, A. Šarić, Biophysical Journal 119 (2020) 1791–1799.","ieee":"A. E. Hafner, N. G. Gyori, C. A. Bench, L. K. Davis, and A. Šarić, “Modeling fibrillogenesis of collagen-mimetic molecules,” Biophysical Journal, vol. 119, no. 9. Cell Press, pp. 1791–1799, 2020.","ama":"Hafner AE, Gyori NG, Bench CA, Davis LK, Šarić A. Modeling fibrillogenesis of collagen-mimetic molecules. Biophysical Journal. 2020;119(9):1791-1799. doi:10.1016/j.bpj.2020.09.013","apa":"Hafner, A. E., Gyori, N. G., Bench, C. A., Davis, L. K., & Šarić, A. (2020). Modeling fibrillogenesis of collagen-mimetic molecules. Biophysical Journal. Cell Press. https://doi.org/10.1016/j.bpj.2020.09.013","mla":"Hafner, Anne E., et al. “Modeling Fibrillogenesis of Collagen-Mimetic Molecules.” Biophysical Journal, vol. 119, no. 9, Cell Press, 2020, pp. 1791–99, doi:10.1016/j.bpj.2020.09.013."},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","article_processing_charge":"No","external_id":{"pmid":["33049216"]},"author":[{"last_name":"Hafner","full_name":"Hafner, Anne E.","first_name":"Anne E."},{"last_name":"Gyori","full_name":"Gyori, Noemi G.","first_name":"Noemi G."},{"last_name":"Bench","full_name":"Bench, Ciaran A.","first_name":"Ciaran A."},{"last_name":"Davis","full_name":"Davis, Luke K.","first_name":"Luke K."},{"first_name":"Anđela","id":"bf63d406-f056-11eb-b41d-f263a6566d8b","last_name":"Šarić","full_name":"Šarić, Anđela","orcid":"0000-0002-7854-2139"}],"title":"Modeling fibrillogenesis of collagen-mimetic molecules","abstract":[{"lang":"eng","text":"One of the most robust examples of self-assembly in living organisms is the formation of collagen architectures. Collagen type I molecules are a crucial component of the extracellular matrix, where they self-assemble into fibrils of well-defined axial striped patterns. This striped fibrillar pattern is preserved across the animal kingdom and is important for the determination of cell phenotype, cell adhesion, and tissue regulation and signaling. The understanding of the physical processes that determine such a robust morphology of self-assembled collagen fibrils is currently almost completely missing. Here, we develop a minimal coarse-grained computational model to identify the physical principles of the assembly of collagen-mimetic molecules. We find that screened electrostatic interactions can drive the formation of collagen-like filaments of well-defined striped morphologies. The fibril axial pattern is determined solely by the distribution of charges on the molecule and is robust to the changes in protein concentration, monomer rigidity, and environmental conditions. We show that the striped fibrillar pattern cannot be easily predicted from the interactions between two monomers but is an emergent result of multibody interactions. Our results can help address collagen remodeling in diseases and aging and guide the design of collagen scaffolds for biotechnological applications."}],"pmid":1,"oa_version":"Published Version","main_file_link":[{"url":"https://www.biorxiv.org/content/10.1101/2020.06.08.140061v1","open_access":"1"}],"scopus_import":"1","intvolume":" 119","month":"09","publication_status":"published","publication_identifier":{"issn":["0006-3495"]},"language":[{"iso":"eng"}],"issue":"9","volume":119,"_id":"10346","type":"journal_article","article_type":"original","keyword":["biophysics"],"status":"public","date_updated":"2021-11-26T07:45:24Z","extern":"1"},{"page":"6236-6247","date_created":"2021-11-26T09:08:19Z","date_published":"2020-06-08T00:00:00Z","doi":"10.1039/c9sc06501f","year":"2020","publication":"Chemical Science","day":"08","oa":1,"quality_controlled":"1","publisher":"Royal Society of Chemistry","acknowledgement":"We are grateful to the Schiff Foundation (AJD), Peterhouse, Cambridge (TCTM), the Swiss National Science foundation (TCTM), Ramon Jenkins Fellowship, Sidney Sussex, Cambridge (GM), the Royal Society (AŠ), the Academy of Medical Sciences and Wellcome Trust (AŠ), the Danish Research Council (MK), the Lundbeck Foundation (MK), the Swedish Research Council (SL), the Wellcome Trust (TPJK), the Cambridge Centre for Misfolding Diseases (TPJK), the BBSRC (TPJK), the Frances and Augustus Newman Foundation (TPJK) for financial support. The research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) through the ERC grants PhysProt (agreement no. 337969), MAMBA (agreement no. 340890) and NovoNordiskFonden (SL).","article_processing_charge":"No","external_id":{"pmid":["32953019"]},"author":[{"last_name":"Dear","full_name":"Dear, Alexander J.","first_name":"Alexander J."},{"full_name":"Meisl, Georg","last_name":"Meisl","first_name":"Georg"},{"id":"bf63d406-f056-11eb-b41d-f263a6566d8b","first_name":"Anđela","last_name":"Šarić","orcid":"0000-0002-7854-2139","full_name":"Šarić, Anđela"},{"last_name":"Michaels","full_name":"Michaels, Thomas C. T.","first_name":"Thomas C. T."},{"first_name":"Magnus","full_name":"Kjaergaard, Magnus","last_name":"Kjaergaard"},{"first_name":"Sara","full_name":"Linse, Sara","last_name":"Linse"},{"full_name":"Knowles, Tuomas P. J.","last_name":"Knowles","first_name":"Tuomas P. J."}],"title":"Identification of on- and off-pathway oligomers in amyloid fibril formation","citation":{"ista":"Dear AJ, Meisl G, Šarić A, Michaels TCT, Kjaergaard M, Linse S, Knowles TPJ. 2020. Identification of on- and off-pathway oligomers in amyloid fibril formation. Chemical Science. 11(24), 6236–6247.","chicago":"Dear, Alexander J., Georg Meisl, Anđela Šarić, Thomas C. T. Michaels, Magnus Kjaergaard, Sara Linse, and Tuomas P. J. Knowles. “Identification of On- and off-Pathway Oligomers in Amyloid Fibril Formation.” Chemical Science. Royal Society of Chemistry, 2020. https://doi.org/10.1039/c9sc06501f.","ieee":"A. J. Dear et al., “Identification of on- and off-pathway oligomers in amyloid fibril formation,” Chemical Science, vol. 11, no. 24. Royal Society of Chemistry, pp. 6236–6247, 2020.","short":"A.J. Dear, G. Meisl, A. Šarić, T.C.T. Michaels, M. Kjaergaard, S. Linse, T.P.J. Knowles, Chemical Science 11 (2020) 6236–6247.","ama":"Dear AJ, Meisl G, Šarić A, et al. Identification of on- and off-pathway oligomers in amyloid fibril formation. Chemical Science. 2020;11(24):6236-6247. doi:10.1039/c9sc06501f","apa":"Dear, A. J., Meisl, G., Šarić, A., Michaels, T. C. T., Kjaergaard, M., Linse, S., & Knowles, T. P. J. (2020). Identification of on- and off-pathway oligomers in amyloid fibril formation. Chemical Science. Royal Society of Chemistry. https://doi.org/10.1039/c9sc06501f","mla":"Dear, Alexander J., et al. “Identification of On- and off-Pathway Oligomers in Amyloid Fibril Formation.” Chemical Science, vol. 11, no. 24, Royal Society of Chemistry, 2020, pp. 6236–47, doi:10.1039/c9sc06501f."},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","license":"https://creativecommons.org/licenses/by-nc/3.0/","issue":"24","volume":11,"publication_status":"published","publication_identifier":{"eissn":["2041-6539"],"issn":["2041-6520"]},"language":[{"iso":"eng"}],"main_file_link":[{"url":"https://pubs.rsc.org/en/content/articlehtml/2020/sc/c9sc06501f","open_access":"1"}],"scopus_import":"1","intvolume":" 11","month":"06","abstract":[{"lang":"eng","text":"The misfolding and aberrant aggregation of proteins into fibrillar structures is a key factor in some of the most prevalent human diseases, including diabetes and dementia. Low molecular weight oligomers are thought to be a central factor in the pathology of these diseases, as well as critical intermediates in the fibril formation process, and as such have received much recent attention. Moreover, on-pathway oligomeric intermediates are potential targets for therapeutic strategies aimed at interrupting the fibril formation process. However, a consistent framework for distinguishing on-pathway from off-pathway oligomers has hitherto been lacking and, in particular, no consensus definition of on- and off-pathway oligomers is available. In this paper, we argue that a non-binary definition of oligomers' contribution to fibril-forming pathways may be more informative and we suggest a quantitative framework, in which each oligomeric species is assigned a value between 0 and 1 describing its relative contribution to the formation of fibrils. First, we clarify the distinction between oligomers and fibrils, and then we use the formalism of reaction networks to develop a general definition for on-pathway oligomers, that yields meaningful classifications in the context of amyloid formation. By applying these concepts to Monte Carlo simulations of a minimal aggregating system, and by revisiting several previous studies of amyloid oligomers in light of our new framework, we demonstrate how to perform these classifications in practice. For each oligomeric species we obtain the degree to which it is on-pathway, highlighting the most effective pharmaceutical targets for the inhibition of amyloid fibril formation."}],"pmid":1,"oa_version":"Published Version","date_updated":"2021-11-26T11:21:20Z","extern":"1","tmp":{"short":"CC BY-NC (3.0)","name":"Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc/3.0/legalcode","image":"/images/cc_by_nc.png"},"type":"journal_article","article_type":"original","keyword":["general chemistry"],"status":"public","_id":"10350"},{"publication":"Science","day":"07","year":"2020","date_created":"2021-11-26T08:21:34Z","date_published":"2020-08-07T00:00:00Z","doi":"10.1126/science.aaz2532","acknowledgement":"We thank the MRC LMCB at UCL for their support; the flow cytometry STP at the Francis Crick Institute for assistance, with special thanks to S. Purewal and D. Davis; C. Bertoli for mentorship\r\nand advice; J. M. Garcia-Arcos for help early on in this project; the entire Baum lab for their input throughout the project; the Albers lab for advice and reagents, with special thanks to M. Van Wolferen and S. Albers; the members of the Wellcome consortium for archaeal cytoskeleton studies for advice and comments; and J. Löwe, S. Oliferenko, M. Balasubramanian, and D. Gerlich for discussions and advice on the manuscript. N.P.R. and S.B. would like to thank N. Rzechorzek, A. Simon, and S. Anjum for discussion and advice.","oa":1,"publisher":"American Association for the Advancement of Science","quality_controlled":"1","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","citation":{"apa":"Tarrason Risa, G., Hurtig, F., Bray, S., Hafner, A. E., Harker-Kirschneck, L., Faull, P., … Baum, B. (2020). The proteasome controls ESCRT-III–mediated cell division in an archaeon. Science. American Association for the Advancement of Science. https://doi.org/10.1126/science.aaz2532","ama":"Tarrason Risa G, Hurtig F, Bray S, et al. The proteasome controls ESCRT-III–mediated cell division in an archaeon. Science. 2020;369(6504). doi:10.1126/science.aaz2532","short":"G. Tarrason Risa, F. Hurtig, S. Bray, A.E. Hafner, L. Harker-Kirschneck, P. Faull, C. Davis, D. Papatziamou, D.R. Mutavchiev, C. Fan, L. Meneguello, A. Arashiro Pulschen, G. Dey, S. Culley, M. Kilkenny, D.P. Souza, L. Pellegrini, R.A.M. de Bruin, R. Henriques, A.P. Snijders, A. Šarić, A.-C. Lindås, N.P. Robinson, B. Baum, Science 369 (2020).","ieee":"G. Tarrason Risa et al., “The proteasome controls ESCRT-III–mediated cell division in an archaeon,” Science, vol. 369, no. 6504. American Association for the Advancement of Science, 2020.","mla":"Tarrason Risa, Gabriel, et al. “The Proteasome Controls ESCRT-III–Mediated Cell Division in an Archaeon.” Science, vol. 369, no. 6504, American Association for the Advancement of Science, 2020, doi:10.1126/science.aaz2532.","ista":"Tarrason Risa G, Hurtig F, Bray S, Hafner AE, Harker-Kirschneck L, Faull P, Davis C, Papatziamou D, Mutavchiev DR, Fan C, Meneguello L, Arashiro Pulschen A, Dey G, Culley S, Kilkenny M, Souza DP, Pellegrini L, de Bruin RAM, Henriques R, Snijders AP, Šarić A, Lindås A-C, Robinson NP, Baum B. 2020. The proteasome controls ESCRT-III–mediated cell division in an archaeon. Science. 369(6504).","chicago":"Tarrason Risa, Gabriel, Fredrik Hurtig, Sian Bray, Anne E. Hafner, Lena Harker-Kirschneck, Peter Faull, Colin Davis, et al. “The Proteasome Controls ESCRT-III–Mediated Cell Division in an Archaeon.” Science. American Association for the Advancement of Science, 2020. https://doi.org/10.1126/science.aaz2532."},"title":"The proteasome controls ESCRT-III–mediated cell division in an archaeon","external_id":{"pmid":["32764038"]},"article_processing_charge":"No","author":[{"full_name":"Tarrason Risa, Gabriel","last_name":"Tarrason Risa","first_name":"Gabriel"},{"last_name":"Hurtig","full_name":"Hurtig, Fredrik","first_name":"Fredrik"},{"first_name":"Sian","last_name":"Bray","full_name":"Bray, Sian"},{"first_name":"Anne E.","full_name":"Hafner, Anne E.","last_name":"Hafner"},{"full_name":"Harker-Kirschneck, Lena","last_name":"Harker-Kirschneck","first_name":"Lena"},{"first_name":"Peter","last_name":"Faull","full_name":"Faull, Peter"},{"last_name":"Davis","full_name":"Davis, Colin","first_name":"Colin"},{"first_name":"Dimitra","full_name":"Papatziamou, Dimitra","last_name":"Papatziamou"},{"full_name":"Mutavchiev, Delyan R.","last_name":"Mutavchiev","first_name":"Delyan R."},{"last_name":"Fan","full_name":"Fan, Catherine","first_name":"Catherine"},{"first_name":"Leticia","last_name":"Meneguello","full_name":"Meneguello, Leticia"},{"last_name":"Arashiro Pulschen","full_name":"Arashiro Pulschen, Andre","first_name":"Andre"},{"full_name":"Dey, Gautam","last_name":"Dey","first_name":"Gautam"},{"full_name":"Culley, Siân","last_name":"Culley","first_name":"Siân"},{"first_name":"Mairi","last_name":"Kilkenny","full_name":"Kilkenny, Mairi"},{"first_name":"Diorge P.","last_name":"Souza","full_name":"Souza, Diorge P."},{"last_name":"Pellegrini","full_name":"Pellegrini, Luca","first_name":"Luca"},{"full_name":"de Bruin, Robertus A. M.","last_name":"de Bruin","first_name":"Robertus A. M."},{"last_name":"Henriques","full_name":"Henriques, Ricardo","first_name":"Ricardo"},{"full_name":"Snijders, Ambrosius P.","last_name":"Snijders","first_name":"Ambrosius P."},{"first_name":"Anđela","id":"bf63d406-f056-11eb-b41d-f263a6566d8b","last_name":"Šarić","full_name":"Šarić, Anđela","orcid":"0000-0002-7854-2139"},{"first_name":"Ann-Christin","full_name":"Lindås, Ann-Christin","last_name":"Lindås"},{"first_name":"Nicholas P.","full_name":"Robinson, Nicholas P.","last_name":"Robinson"},{"full_name":"Baum, Buzz","last_name":"Baum","first_name":"Buzz"}],"language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"eissn":["1095-9203"],"issn":["0036-8075"]},"issue":"6504","volume":369,"oa_version":"Preprint","pmid":1,"abstract":[{"text":"Sulfolobus acidocaldarius is the closest experimentally tractable archaeal relative of eukaryotes and, despite lacking obvious cyclin-dependent kinase and cyclin homologs, has an ordered eukaryote-like cell cycle with distinct phases of DNA replication and division. Here, in exploring the mechanism of cell division in S. acidocaldarius, we identify a role for the archaeal proteasome in regulating the transition from the end of one cell cycle to the beginning of the next. Further, we identify the archaeal ESCRT-III homolog, CdvB, as a key target of the proteasome and show that its degradation triggers division by allowing constriction of the CdvB1:CdvB2 ESCRT-III division ring. These findings offer a minimal mechanism for ESCRT-III–mediated membrane remodeling and point to a conserved role for the proteasome in eukaryotic and archaeal cell cycle control.","lang":"eng"}],"intvolume":" 369","month":"08","main_file_link":[{"url":"https://www.biorxiv.org/content/10.1101/774273v1","open_access":"1"}],"scopus_import":"1","extern":"1","date_updated":"2021-11-26T08:58:33Z","_id":"10349","keyword":["multidisciplinary"],"status":"public","type":"journal_article","article_type":"original"},{"page":"24251-24257","date_published":"2020-09-14T00:00:00Z","doi":"10.1073/pnas.2006684117","date_created":"2021-11-26T07:48:27Z","year":"2020","day":"14","publication":"Proceedings of the National Academy of Sciences","publisher":"National Academy of Sciences","quality_controlled":"1","oa":1,"acknowledgement":"We acknowledge support from Peterhouse, Cambridge (T.C.T.M.); the Swiss National Science Foundation (T.C.T.M.); the Royal Society (A.S. and S.C.); the Academy of Medical Sciences (A.S.); Sidney Sussex College, Cambridge (G.M.); Newnham College, Cambridge (G.T.H.); the Wellcome Trust (T.P.J.K.); the Cambridge Center for Misfolding Diseases (T.P.J.K. and M.V.); the Biotechnology and Biological Sciences Research Council (T.P.J.K.); the Frances and Augustus Newman Foundation (T.P.J.K.); and the Synapsis Foundation for Alzheimer’s disease (P.A.). The research leading to these results has received funding from the European Research Council (ERC) under the European Union’s Seventh Framework Program (FP7/2007-2013) through the ERC Grant PhysProt (Agreement 337969).","author":[{"full_name":"Michaels, Thomas C. T.","last_name":"Michaels","first_name":"Thomas C. T."},{"id":"bf63d406-f056-11eb-b41d-f263a6566d8b","first_name":"Anđela","last_name":"Šarić","full_name":"Šarić, Anđela","orcid":"0000-0002-7854-2139"},{"first_name":"Georg","last_name":"Meisl","full_name":"Meisl, Georg"},{"first_name":"Gabriella T.","last_name":"Heller","full_name":"Heller, Gabriella T."},{"full_name":"Curk, Samo","last_name":"Curk","first_name":"Samo"},{"first_name":"Paolo","full_name":"Arosio, Paolo","last_name":"Arosio"},{"last_name":"Linse","full_name":"Linse, Sara","first_name":"Sara"},{"last_name":"Dobson","full_name":"Dobson, Christopher M.","first_name":"Christopher M."},{"first_name":"Michele","full_name":"Vendruscolo, Michele","last_name":"Vendruscolo"},{"first_name":"Tuomas P. J.","full_name":"Knowles, Tuomas P. J.","last_name":"Knowles"}],"article_processing_charge":"No","external_id":{"pmid":["32929030"]},"title":"Thermodynamic and kinetic design principles for amyloid-aggregation inhibitors","citation":{"chicago":"Michaels, Thomas C. T., Anđela Šarić, Georg Meisl, Gabriella T. Heller, Samo Curk, Paolo Arosio, Sara Linse, Christopher M. Dobson, Michele Vendruscolo, and Tuomas P. J. Knowles. “Thermodynamic and Kinetic Design Principles for Amyloid-Aggregation Inhibitors.” Proceedings of the National Academy of Sciences. National Academy of Sciences, 2020. https://doi.org/10.1073/pnas.2006684117.","ista":"Michaels TCT, Šarić A, Meisl G, Heller GT, Curk S, Arosio P, Linse S, Dobson CM, Vendruscolo M, Knowles TPJ. 2020. Thermodynamic and kinetic design principles for amyloid-aggregation inhibitors. Proceedings of the National Academy of Sciences. 117(39), 24251–24257.","mla":"Michaels, Thomas C. T., et al. “Thermodynamic and Kinetic Design Principles for Amyloid-Aggregation Inhibitors.” Proceedings of the National Academy of Sciences, vol. 117, no. 39, National Academy of Sciences, 2020, pp. 24251–57, doi:10.1073/pnas.2006684117.","apa":"Michaels, T. C. T., Šarić, A., Meisl, G., Heller, G. T., Curk, S., Arosio, P., … Knowles, T. P. J. (2020). Thermodynamic and kinetic design principles for amyloid-aggregation inhibitors. Proceedings of the National Academy of Sciences. National Academy of Sciences. https://doi.org/10.1073/pnas.2006684117","ama":"Michaels TCT, Šarić A, Meisl G, et al. Thermodynamic and kinetic design principles for amyloid-aggregation inhibitors. Proceedings of the National Academy of Sciences. 2020;117(39):24251-24257. doi:10.1073/pnas.2006684117","ieee":"T. C. T. Michaels et al., “Thermodynamic and kinetic design principles for amyloid-aggregation inhibitors,” Proceedings of the National Academy of Sciences, vol. 117, no. 39. National Academy of Sciences, pp. 24251–24257, 2020.","short":"T.C.T. Michaels, A. Šarić, G. Meisl, G.T. Heller, S. Curk, P. Arosio, S. Linse, C.M. Dobson, M. Vendruscolo, T.P.J. Knowles, Proceedings of the National Academy of Sciences 117 (2020) 24251–24257."},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","issue":"39","volume":117,"publication_identifier":{"eissn":["1091-6490"],"issn":["0027-8424"]},"publication_status":"published","language":[{"iso":"eng"}],"scopus_import":"1","main_file_link":[{"open_access":"1","url":"https://www.biorxiv.org/content/10.1101/2020.02.22.960716"}],"month":"09","intvolume":" 117","abstract":[{"lang":"eng","text":"Understanding the mechanism of action of compounds capable of inhibiting amyloid-fibril formation is critical to the development of potential therapeutics against protein-misfolding diseases. A fundamental challenge for progress is the range of possible target species and the disparate timescales involved, since the aggregating proteins are simultaneously the reactants, products, intermediates, and catalysts of the reaction. It is a complex problem, therefore, to choose the states of the aggregating proteins that should be bound by the compounds to achieve the most potent inhibition. We present here a comprehensive kinetic theory of amyloid-aggregation inhibition that reveals the fundamental thermodynamic and kinetic signatures characterizing effective inhibitors by identifying quantitative relationships between the aggregation and binding rate constants. These results provide general physical laws to guide the design and optimization of inhibitors of amyloid-fibril formation, revealing in particular the important role of on-rates in the binding of the inhibitors."}],"pmid":1,"oa_version":"Published Version","date_updated":"2021-11-26T08:59:06Z","extern":"1","article_type":"original","type":"journal_article","status":"public","keyword":["multidisciplinary"],"_id":"10347"},{"main_file_link":[{"open_access":"1","url":"https://www.biorxiv.org/content/10.1101/2020.01.08.897488"}],"scopus_import":"1","intvolume":" 12","month":"04","abstract":[{"lang":"eng","text":"Oligomeric species populated during the aggregation of the Aβ42 peptide have been identified as potent cytotoxins linked to Alzheimer’s disease, but the fundamental molecular pathways that control their dynamics have yet to be elucidated. By developing a general approach that combines theory, experiment and simulation, we reveal, in molecular detail, the mechanisms of Aβ42 oligomer dynamics during amyloid fibril formation. Even though all mature amyloid fibrils must originate as oligomers, we found that most Aβ42 oligomers dissociate into their monomeric precursors without forming new fibrils. Only a minority of oligomers converts into fibrillar structures. Moreover, the heterogeneous ensemble of oligomeric species interconverts on timescales comparable to those of aggregation. Our results identify fundamentally new steps that could be targeted by therapeutic interventions designed to combat protein misfolding diseases."}],"pmid":1,"oa_version":"None","volume":12,"related_material":{"link":[{"url":"https://doi.org/10.1038/s41557-020-0468-6","relation":"erratum"}]},"issue":"5","publication_status":"published","publication_identifier":{"issn":["1755-4330"],"eissn":["1755-4349"]},"language":[{"iso":"eng"}],"type":"journal_article","article_type":"original","keyword":["general chemical engineering","general chemistry"],"status":"public","_id":"10351","date_updated":"2021-11-26T11:21:08Z","extern":"1","oa":1,"quality_controlled":"1","publisher":"Springer Nature","acknowledgement":"We acknowledge support from Peterhouse (T.C.T.M.), the Swiss National Science foundation (T.C.T.M.), the Royal Society (A.Š.), the Academy of Medical Sciences (A.Š.), the UCL Institute for the Physics of Living Systems (S.C.), Sidney Sussex College (G.M.), the Wellcome Trust (A.Š., M.V., C.M.D. and T.P.J.K.), the Schiff Foundation (A.J.D.), the Cambridge Centre for Misfolding Diseases (M.V., C.M.D. and T.P.J.K.), the BBSRC (C.M.D. and T.P.J.K.), the Frances and Augustus Newman Foundation (T.P.J.K.), the Swedish Research Council (S.L.) and the ERC grant MAMBA (S.L., agreement no. 340890). The research that led to these results received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP7/2007-2013) through the ERC grant PhysProt (agreement no. 337969).","page":"445-451","date_created":"2021-11-26T09:15:13Z","doi":"10.1038/s41557-020-0452-1","date_published":"2020-04-13T00:00:00Z","year":"2020","publication":"Nature Chemistry","day":"13","article_processing_charge":"No","external_id":{"pmid":["32303714"]},"author":[{"last_name":"Michaels","full_name":"Michaels, Thomas C. T.","first_name":"Thomas C. T."},{"orcid":"0000-0002-7854-2139","full_name":"Šarić, Anđela","last_name":"Šarić","first_name":"Anđela","id":"bf63d406-f056-11eb-b41d-f263a6566d8b"},{"first_name":"Samo","full_name":"Curk, Samo","last_name":"Curk"},{"last_name":"Bernfur","full_name":"Bernfur, Katja","first_name":"Katja"},{"full_name":"Arosio, Paolo","last_name":"Arosio","first_name":"Paolo"},{"first_name":"Georg","last_name":"Meisl","full_name":"Meisl, Georg"},{"last_name":"Dear","full_name":"Dear, Alexander J.","first_name":"Alexander J."},{"first_name":"Samuel I. A.","full_name":"Cohen, Samuel I. A.","last_name":"Cohen"},{"first_name":"Christopher M.","last_name":"Dobson","full_name":"Dobson, Christopher M."},{"first_name":"Michele","last_name":"Vendruscolo","full_name":"Vendruscolo, Michele"},{"first_name":"Sara","last_name":"Linse","full_name":"Linse, Sara"},{"first_name":"Tuomas P. J.","last_name":"Knowles","full_name":"Knowles, Tuomas P. J."}],"title":"Dynamics of oligomer populations formed during the aggregation of Alzheimer’s Aβ42 peptide","citation":{"mla":"Michaels, Thomas C. T., et al. “Dynamics of Oligomer Populations Formed during the Aggregation of Alzheimer’s Aβ42 Peptide.” Nature Chemistry, vol. 12, no. 5, Springer Nature, 2020, pp. 445–51, doi:10.1038/s41557-020-0452-1.","ama":"Michaels TCT, Šarić A, Curk S, et al. Dynamics of oligomer populations formed during the aggregation of Alzheimer’s Aβ42 peptide. Nature Chemistry. 2020;12(5):445-451. doi:10.1038/s41557-020-0452-1","apa":"Michaels, T. C. T., Šarić, A., Curk, S., Bernfur, K., Arosio, P., Meisl, G., … Knowles, T. P. J. (2020). Dynamics of oligomer populations formed during the aggregation of Alzheimer’s Aβ42 peptide. Nature Chemistry. Springer Nature. https://doi.org/10.1038/s41557-020-0452-1","ieee":"T. C. T. Michaels et al., “Dynamics of oligomer populations formed during the aggregation of Alzheimer’s Aβ42 peptide,” Nature Chemistry, vol. 12, no. 5. Springer Nature, pp. 445–451, 2020.","short":"T.C.T. Michaels, A. Šarić, S. Curk, K. Bernfur, P. Arosio, G. Meisl, A.J. Dear, S.I.A. Cohen, C.M. Dobson, M. Vendruscolo, S. Linse, T.P.J. Knowles, Nature Chemistry 12 (2020) 445–451.","chicago":"Michaels, Thomas C. T., Anđela Šarić, Samo Curk, Katja Bernfur, Paolo Arosio, Georg Meisl, Alexander J. Dear, et al. “Dynamics of Oligomer Populations Formed during the Aggregation of Alzheimer’s Aβ42 Peptide.” Nature Chemistry. Springer Nature, 2020. https://doi.org/10.1038/s41557-020-0452-1.","ista":"Michaels TCT, Šarić A, Curk S, Bernfur K, Arosio P, Meisl G, Dear AJ, Cohen SIA, Dobson CM, Vendruscolo M, Linse S, Knowles TPJ. 2020. Dynamics of oligomer populations formed during the aggregation of Alzheimer’s Aβ42 peptide. Nature Chemistry. 12(5), 445–451."},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9"},{"date_updated":"2021-11-26T08:58:37Z","extern":"1","_id":"10348","type":"journal_article","article_type":"original","keyword":["general biochemistry","genetics and molecular biology"],"status":"public","publication_status":"published","publication_identifier":{"issn":["0092-8674"]},"language":[{"iso":"eng"}],"volume":182,"issue":"5","abstract":[{"lang":"eng","text":"The endosomal sorting complex required for transport-III (ESCRT-III) catalyzes membrane fission from within membrane necks, a process that is essential for many cellular functions, from cell division to lysosome degradation and autophagy. How it breaks membranes, though, remains unknown. Here, we characterize a sequential polymerization of ESCRT-III subunits that, driven by a recruitment cascade and by continuous subunit-turnover powered by the ATPase Vps4, induces membrane deformation and fission. During this process, the exchange of Vps24 for Did2 induces a tilt in the polymer-membrane interface, which triggers transition from flat spiral polymers to helical filament to drive the formation of membrane protrusions, and ends with the formation of a highly constricted Did2-Ist1 co-polymer that we show is competent to promote fission when bound on the inside of membrane necks. Overall, our results suggest a mechanism of stepwise changes in ESCRT-III filament structure and mechanical properties via exchange of the filament subunits to catalyze ESCRT-III activity."}],"pmid":1,"oa_version":"Published Version","main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S0092867420309296","open_access":"1"}],"scopus_import":"1","intvolume":" 182","month":"08","citation":{"ista":"Pfitzner A-K, Mercier V, Jiang X, Moser von Filseck J, Baum B, Šarić A, Roux A. 2020. An ESCRT-III polymerization sequence drives membrane deformation and fission. Cell. 182(5), 1140–1155.e18.","chicago":"Pfitzner, Anna-Katharina, Vincent Mercier, Xiuyun Jiang, Joachim Moser von Filseck, Buzz Baum, Anđela Šarić, and Aurélien Roux. “An ESCRT-III Polymerization Sequence Drives Membrane Deformation and Fission.” Cell. Elsevier, 2020. https://doi.org/10.1016/j.cell.2020.07.021.","ieee":"A.-K. Pfitzner et al., “An ESCRT-III polymerization sequence drives membrane deformation and fission,” Cell, vol. 182, no. 5. Elsevier, p. 1140–1155.e18, 2020.","short":"A.-K. Pfitzner, V. Mercier, X. Jiang, J. Moser von Filseck, B. Baum, A. Šarić, A. Roux, Cell 182 (2020) 1140–1155.e18.","apa":"Pfitzner, A.-K., Mercier, V., Jiang, X., Moser von Filseck, J., Baum, B., Šarić, A., & Roux, A. (2020). An ESCRT-III polymerization sequence drives membrane deformation and fission. Cell. Elsevier. https://doi.org/10.1016/j.cell.2020.07.021","ama":"Pfitzner A-K, Mercier V, Jiang X, et al. An ESCRT-III polymerization sequence drives membrane deformation and fission. Cell. 2020;182(5):1140-1155.e18. doi:10.1016/j.cell.2020.07.021","mla":"Pfitzner, Anna-Katharina, et al. “An ESCRT-III Polymerization Sequence Drives Membrane Deformation and Fission.” Cell, vol. 182, no. 5, Elsevier, 2020, p. 1140–1155.e18, doi:10.1016/j.cell.2020.07.021."},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","external_id":{"pmid":["32814015"]},"article_processing_charge":"No","author":[{"last_name":"Pfitzner","full_name":"Pfitzner, Anna-Katharina","first_name":"Anna-Katharina"},{"first_name":"Vincent","full_name":"Mercier, Vincent","last_name":"Mercier"},{"first_name":"Xiuyun","full_name":"Jiang, Xiuyun","last_name":"Jiang"},{"last_name":"Moser von Filseck","full_name":"Moser von Filseck, Joachim","first_name":"Joachim"},{"first_name":"Buzz","last_name":"Baum","full_name":"Baum, Buzz"},{"id":"bf63d406-f056-11eb-b41d-f263a6566d8b","first_name":"Anđela","orcid":"0000-0002-7854-2139","full_name":"Šarić, Anđela","last_name":"Šarić"},{"full_name":"Roux, Aurélien","last_name":"Roux","first_name":"Aurélien"}],"title":"An ESCRT-III polymerization sequence drives membrane deformation and fission","year":"2020","publication":"Cell","day":"18","page":"1140-1155.e18","date_created":"2021-11-26T08:02:27Z","doi":"10.1016/j.cell.2020.07.021","date_published":"2020-08-18T00:00:00Z","acknowledgement":"The authors thank Nicolas Chiaruttini, Jean Gruenberg, and Lena Harker-Kirschneck for careful correction of this manuscript and helpful discussions. The authors want to thank the NCCR Chemical Biology for constant support during this project. A.R. acknowledges funding from the Swiss National Fund for Research (31003A_130520, 31003A_149975, and 31003A_173087) and the European Research Council Consolidator (311536). A.Š. acknowledges the European Research Council (802960). B.B. thanks the BBSRC (BB/K009001/1) and Wellcome Trust (203276/Z/16/Z) for support. J.M.v.F. acknowledges funding through an EMBO Long-Term Fellowship (ALTF 1065-2015), the European Commission FP7 (Marie Curie Actions, LTFCOFUND2013, and GA-2013-609409), and a Transitional Postdoc fellowship (2015/345) from the Swiss SystemsX.ch initiative, evaluated by the Swiss National Science Foundation and Swiss National Science Foundation Research (SNSF SINERGIA 160728/1 [leader, Sophie Martin]).","oa":1,"publisher":"Elsevier","quality_controlled":"1"},{"article_number":"022420","citation":{"ama":"Davis LK, Ford IJ, Šarić A, Hoogenboom BW. Intrinsically disordered nuclear pore proteins show ideal-polymer morphologies and dynamics. Physical Review E. 2020;101(2). doi:10.1103/physreve.101.022420","apa":"Davis, L. K., Ford, I. J., Šarić, A., & Hoogenboom, B. W. (2020). Intrinsically disordered nuclear pore proteins show ideal-polymer morphologies and dynamics. Physical Review E. American Physical Society. https://doi.org/10.1103/physreve.101.022420","short":"L.K. Davis, I.J. Ford, A. Šarić, B.W. Hoogenboom, Physical Review E 101 (2020).","ieee":"L. K. Davis, I. J. Ford, A. Šarić, and B. W. Hoogenboom, “Intrinsically disordered nuclear pore proteins show ideal-polymer morphologies and dynamics,” Physical Review E, vol. 101, no. 2. American Physical Society, 2020.","mla":"Davis, Luke K., et al. “Intrinsically Disordered Nuclear Pore Proteins Show Ideal-Polymer Morphologies and Dynamics.” Physical Review E, vol. 101, no. 2, 022420, American Physical Society, 2020, doi:10.1103/physreve.101.022420.","ista":"Davis LK, Ford IJ, Šarić A, Hoogenboom BW. 2020. Intrinsically disordered nuclear pore proteins show ideal-polymer morphologies and dynamics. Physical Review E. 101(2), 022420.","chicago":"Davis, Luke K., Ian J. Ford, Anđela Šarić, and Bart W. Hoogenboom. “Intrinsically Disordered Nuclear Pore Proteins Show Ideal-Polymer Morphologies and Dynamics.” Physical Review E. American Physical Society, 2020. https://doi.org/10.1103/physreve.101.022420."},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","author":[{"last_name":"Davis","full_name":"Davis, Luke K.","first_name":"Luke K."},{"last_name":"Ford","full_name":"Ford, Ian J.","first_name":"Ian J."},{"full_name":"Šarić, Anđela","orcid":"0000-0002-7854-2139","last_name":"Šarić","id":"bf63d406-f056-11eb-b41d-f263a6566d8b","first_name":"Anđela"},{"full_name":"Hoogenboom, Bart W.","last_name":"Hoogenboom","first_name":"Bart W."}],"external_id":{"pmid":["32168597"]},"article_processing_charge":"No","title":"Intrinsically disordered nuclear pore proteins show ideal-polymer morphologies and dynamics","acknowledgement":"We thank Dino Osmanović (MIT), Roy Beck (Tel-Aviv), Larissa Kapinos (Basel), Roderick Lim (Basel), Ralf Richter (Leeds), and Anton Zilman (Toronto) for discussions. This work was funded by the Royal Society (A.Š.) and the UK Engineering and Physical Sciences Research Council (EP/L504889/1, B.W.H.).","publisher":"American Physical Society","quality_controlled":"1","oa":1,"year":"2020","day":"28","publication":"Physical Review E","doi":"10.1103/physreve.101.022420","date_published":"2020-02-28T00:00:00Z","date_created":"2021-11-26T09:41:04Z","_id":"10352","type":"journal_article","article_type":"original","status":"public","date_updated":"2021-11-26T11:21:16Z","extern":"1","abstract":[{"lang":"eng","text":"In the nuclear pore complex, intrinsically disordered nuclear pore proteins (FG Nups) form a selective barrier for transport into and out of the cell nucleus, in a way that remains poorly understood. The collective FG Nup behavior has long been conceptualized either as a polymer brush, dominated by entropic and excluded-volume (repulsive) interactions, or as a hydrogel, dominated by cohesive (attractive) interactions between FG Nups. Here we compare mesoscale computational simulations with a wide range of experimental data to demonstrate that FG Nups are at the crossover point between these two regimes. Specifically, we find that repulsive and attractive interactions are balanced, resulting in morphologies and dynamics that are close to those of ideal polymer chains. We demonstrate that this property of FG Nups yields sufficient cohesion to seal the transport barrier, and yet maintains fast dynamics at the molecular scale, permitting the rapid polymer rearrangements needed for transport events."}],"oa_version":"Preprint","pmid":1,"scopus_import":"1","main_file_link":[{"url":"https://www.biorxiv.org/content/10.1101/571687","open_access":"1"}],"month":"02","intvolume":" 101","publication_identifier":{"eissn":["2470-0053"],"issn":["2470-0045"]},"publication_status":"published","language":[{"iso":"eng"}],"issue":"2","volume":101},{"volume":124,"issue":"4","language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"eissn":["1079-7114"],"issn":["0031-9007"]},"intvolume":" 124","month":"01","main_file_link":[{"open_access":"1","url":"https://www.biorxiv.org/content/10.1101/553248"}],"scopus_import":"1","pmid":1,"oa_version":"Preprint","abstract":[{"lang":"eng","text":"Experiments have suggested that bacterial mechanosensitive channels separate into 2D clusters, the role of which is unclear. By developing a coarse-grained computer model we find that clustering promotes the channel closure, which is highly dependent on the channel concentration and membrane stress. This behaviour yields a tightly regulated gating system, whereby at high tensions channels gate individually, and at lower tensions the channels spontaneously aggregate and inactivate. We implement this positive feedback into the model for cell volume regulation, and find that the channel clustering protects the cell against excessive loss of cytoplasmic content."}],"extern":"1","date_updated":"2021-11-26T11:21:12Z","keyword":["general physics and astronomy"],"status":"public","article_type":"original","type":"journal_article","_id":"10353","date_created":"2021-11-26T09:57:01Z","doi":"10.1103/physrevlett.124.048102","date_published":"2020-01-31T00:00:00Z","publication":"Physical Review Letters","day":"31","year":"2020","oa":1,"quality_controlled":"1","publisher":"American Physical Society","acknowledgement":"We thank Samantha Miller, Bert Poolman, and the members of Šarić and Pilizota laboratories for useful discussion. We acknowledge support from the Engineering and Physical Sciences Research Council (A.P. and A.Š.), the UCL Institute for the Physics of Living Systems (A.P. and A.Š.), Darwin Trust of University of Edinburgh (H.S.), Industrial Biotechnology Innovation Centre (H.S. and T.P.), BBSRC Council Crossing Biological Membrane Network (H.S. and T.P.), BBSRC/EPSRC/MRC Synthetic Biology Research Centre (T.P.), and the Royal Society (A.Š.).","title":"Dynamic clustering regulates activity of mechanosensitive membrane channels","external_id":{"pmid":["32058787"]},"article_processing_charge":"No","author":[{"last_name":"Paraschiv","full_name":"Paraschiv, Alexandru","first_name":"Alexandru"},{"last_name":"Hegde","full_name":"Hegde, Smitha","first_name":"Smitha"},{"last_name":"Ganti","full_name":"Ganti, Raman","first_name":"Raman"},{"full_name":"Pilizota, Teuta","last_name":"Pilizota","first_name":"Teuta"},{"first_name":"Anđela","id":"bf63d406-f056-11eb-b41d-f263a6566d8b","orcid":"0000-0002-7854-2139","full_name":"Šarić, Anđela","last_name":"Šarić"}],"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","citation":{"ista":"Paraschiv A, Hegde S, Ganti R, Pilizota T, Šarić A. 2020. Dynamic clustering regulates activity of mechanosensitive membrane channels. Physical Review Letters. 124(4), 048102.","chicago":"Paraschiv, Alexandru, Smitha Hegde, Raman Ganti, Teuta Pilizota, and Anđela Šarić. “Dynamic Clustering Regulates Activity of Mechanosensitive Membrane Channels.” Physical Review Letters. American Physical Society, 2020. https://doi.org/10.1103/physrevlett.124.048102.","apa":"Paraschiv, A., Hegde, S., Ganti, R., Pilizota, T., & Šarić, A. (2020). Dynamic clustering regulates activity of mechanosensitive membrane channels. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.124.048102","ama":"Paraschiv A, Hegde S, Ganti R, Pilizota T, Šarić A. Dynamic clustering regulates activity of mechanosensitive membrane channels. Physical Review Letters. 2020;124(4). doi:10.1103/physrevlett.124.048102","ieee":"A. Paraschiv, S. Hegde, R. Ganti, T. Pilizota, and A. Šarić, “Dynamic clustering regulates activity of mechanosensitive membrane channels,” Physical Review Letters, vol. 124, no. 4. American Physical Society, 2020.","short":"A. Paraschiv, S. Hegde, R. Ganti, T. Pilizota, A. Šarić, Physical Review Letters 124 (2020).","mla":"Paraschiv, Alexandru, et al. “Dynamic Clustering Regulates Activity of Mechanosensitive Membrane Channels.” Physical Review Letters, vol. 124, no. 4, 048102, American Physical Society, 2020, doi:10.1103/physrevlett.124.048102."},"article_number":"048102"},{"ipc":" H04L9/3247 ; G06Q20/29 ; G06Q20/382 ; H04L9/3236","year":"2020","day":"03","publication_date":"2020-03-03","related_material":{"link":[{"relation":"earlier_version","url":"https://patents.google.com/patent/US20180359096A1/en"}]},"date_published":"2020-03-03T00:00:00Z","date_created":"2021-12-16T13:28:59Z","abstract":[{"text":"Data storage and retrieval systems, methods, and computer-readable media utilize a cryptographically verifiable data structure that facilitates verification of a transaction in a decentralized peer-to-peer environment using multi-hop backwards and forwards links. Backward links are cryptographic hashes of past records. Forward links are cryptographic signatures of future records that are added retroactively to records once the target block has been appended to the data structure.","lang":"eng"}],"application_date":"2017-06-09","oa_version":"Published Version","main_file_link":[{"url":"https://patents.google.com/patent/US10581613B2/en","open_access":"1"}],"oa":1,"month":"03","date_updated":"2021-12-21T10:04:50Z","citation":{"chicago":"Ford, Bryan, Linus Gasse, Eleftherios Kokoris Kogias, and Philipp Jovanovic. “Cryptographically Verifiable Data Structure Having Multi-Hop Forward and Backwards Links and Associated Systems and Methods,” 2020.","ista":"Ford B, Gasse L, Kokoris Kogias E, Jovanovic P. 2020. Cryptographically verifiable data structure having multi-hop forward and backwards links and associated systems and methods.","mla":"Ford, Bryan, et al. Cryptographically Verifiable Data Structure Having Multi-Hop Forward and Backwards Links and Associated Systems and Methods. 2020.","ieee":"B. Ford, L. Gasse, E. Kokoris Kogias, and P. Jovanovic, “Cryptographically verifiable data structure having multi-hop forward and backwards links and associated systems and methods.” 2020.","short":"B. Ford, L. Gasse, E. Kokoris Kogias, P. Jovanovic, (2020).","apa":"Ford, B., Gasse, L., Kokoris Kogias, E., & Jovanovic, P. (2020). Cryptographically verifiable data structure having multi-hop forward and backwards links and associated systems and methods.","ama":"Ford B, Gasse L, Kokoris Kogias E, Jovanovic P. Cryptographically verifiable data structure having multi-hop forward and backwards links and associated systems and methods. 2020."},"ipn":"10581613","extern":"1","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","author":[{"first_name":"Bryan","last_name":"Ford","full_name":"Ford, Bryan"},{"first_name":"Linus","full_name":"Gasse, Linus","last_name":"Gasse"},{"last_name":"Kokoris Kogias","full_name":"Kokoris Kogias, Eleftherios","id":"f5983044-d7ef-11ea-ac6d-fd1430a26d30","first_name":"Eleftherios"},{"first_name":"Philipp","last_name":"Jovanovic","full_name":"Jovanovic, Philipp"}],"article_processing_charge":"No","title":"Cryptographically verifiable data structure having multi-hop forward and backwards links and associated systems and methods","department":[{"_id":"ElKo"}],"_id":"10557","applicant":["Ecole Polytechnique Federale de Lausanne"],"type":"patent","status":"public"},{"quality_controlled":"1","publisher":"Springer Nature","oa":1,"acknowledgement":"We acknowledge discussions with J. Checkelsky, S. Chen, C. Dean, M. Yankowitz, D. Reilly, I. Sodemann and M. Zaletel. Work at UCSB was primarily supported by the ARO under MURI W911NF-16-1-0361. Measurements of twisted bilayer graphene (Extended Data Fig. 8) and measurements at elevated temperatures (Extended Data Fig. 3) were supported by a SEED grant and made use of shared facilities of the UCSB MRSEC (NSF DMR 1720256), a member of the Materials Research Facilities Network (www.mrfn.org). A.F.Y. acknowledges the support of the David and Lucille Packard Foundation under award 2016-65145. A.H.M. and J.Z. were supported by the National Science Foundation through the Center for Dynamics and Control of Materials, an NSF MRSEC under Cooperative Agreement number DMR-1720595, and by the Welch Foundation under grant TBF1473. C.L.T. acknowledges support from the Hertz Foundation and from the National Science Foundation Graduate Research Fellowship Program under grant 1650114. K.W. and T.T. acknowledge support from the Elemental Strategy Initiative conducted by the MEXT, Japan, Grant Number JPMXP0112101001, JSPS KAKENHI grant numbers JP20H00354 and the CREST(JPMJCR15F3), JST.","page":"66-70","date_published":"2020-11-23T00:00:00Z","doi":"10.1038/s41586-020-2963-8","date_created":"2022-01-13T14:12:17Z","year":"2020","day":"23","publication":"Nature","author":[{"first_name":"Hryhoriy","id":"edfc7cb1-526e-11ec-b05a-e6ecc27e4e48","last_name":"Polshyn","orcid":"0000-0001-8223-8896","full_name":"Polshyn, Hryhoriy"},{"first_name":"J.","last_name":"Zhu","full_name":"Zhu, J."},{"last_name":"Kumar","full_name":"Kumar, M. A.","first_name":"M. A."},{"full_name":"Zhang, Y.","last_name":"Zhang","first_name":"Y."},{"full_name":"Yang, F.","last_name":"Yang","first_name":"F."},{"last_name":"Tschirhart","full_name":"Tschirhart, C. L.","first_name":"C. L."},{"first_name":"M.","full_name":"Serlin, M.","last_name":"Serlin"},{"first_name":"K.","last_name":"Watanabe","full_name":"Watanabe, K."},{"full_name":"Taniguchi, T.","last_name":"Taniguchi","first_name":"T."},{"full_name":"MacDonald, A. H.","last_name":"MacDonald","first_name":"A. H."},{"last_name":"Young","full_name":"Young, A. F.","first_name":"A. F."}],"external_id":{"pmid":["33230333"],"arxiv":["2004.11353"]},"article_processing_charge":"No","title":"Electrical switching of magnetic order in an orbital Chern insulator","citation":{"ista":"Polshyn H, Zhu J, Kumar MA, Zhang Y, Yang F, Tschirhart CL, Serlin M, Watanabe K, Taniguchi T, MacDonald AH, Young AF. 2020. Electrical switching of magnetic order in an orbital Chern insulator. Nature. 588(7836), 66–70.","chicago":"Polshyn, Hryhoriy, J. Zhu, M. A. Kumar, Y. Zhang, F. Yang, C. L. Tschirhart, M. Serlin, et al. “Electrical Switching of Magnetic Order in an Orbital Chern Insulator.” Nature. Springer Nature, 2020. https://doi.org/10.1038/s41586-020-2963-8.","apa":"Polshyn, H., Zhu, J., Kumar, M. A., Zhang, Y., Yang, F., Tschirhart, C. L., … Young, A. F. (2020). Electrical switching of magnetic order in an orbital Chern insulator. Nature. Springer Nature. https://doi.org/10.1038/s41586-020-2963-8","ama":"Polshyn H, Zhu J, Kumar MA, et al. Electrical switching of magnetic order in an orbital Chern insulator. Nature. 2020;588(7836):66-70. doi:10.1038/s41586-020-2963-8","short":"H. Polshyn, J. Zhu, M.A. Kumar, Y. Zhang, F. Yang, C.L. Tschirhart, M. Serlin, K. Watanabe, T. Taniguchi, A.H. MacDonald, A.F. Young, Nature 588 (2020) 66–70.","ieee":"H. Polshyn et al., “Electrical switching of magnetic order in an orbital Chern insulator,” Nature, vol. 588, no. 7836. Springer Nature, pp. 66–70, 2020.","mla":"Polshyn, Hryhoriy, et al. “Electrical Switching of Magnetic Order in an Orbital Chern Insulator.” Nature, vol. 588, no. 7836, Springer Nature, 2020, pp. 66–70, doi:10.1038/s41586-020-2963-8."},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","scopus_import":"1","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2004.11353"}],"month":"11","intvolume":" 588","abstract":[{"text":"Magnetism typically arises from the joint effect of Fermi statistics and repulsive Coulomb interactions, which favours ground states with non-zero electron spin. As a result, controlling spin magnetism with electric fields—a longstanding technological goal in spintronics and multiferroics1,2—can be achieved only indirectly. Here we experimentally demonstrate direct electric-field control of magnetic states in an orbital Chern insulator3,4,5,6, a magnetic system in which non-trivial band topology favours long-range order of orbital angular momentum but the spins are thought to remain disordered7,8,9,10,11,12,13,14. We use van der Waals heterostructures consisting of a graphene monolayer rotationally faulted with respect to a Bernal-stacked bilayer to realize narrow and topologically non-trivial valley-projected moiré minibands15,16,17. At fillings of one and three electrons per moiré unit cell within these bands, we observe quantized anomalous Hall effects18 with transverse resistance approximately equal to h/2e2 (where h is Planck’s constant and e is the charge on the electron), which is indicative of spontaneous polarization of the system into a single-valley-projected band with a Chern number equal to two. At a filling of three electrons per moiré unit cell, we find that the sign of the quantum anomalous Hall effect can be reversed via field-effect control of the chemical potential; moreover, this transition is hysteretic, which we use to demonstrate non-volatile electric-field-induced reversal of the magnetic state. A theoretical analysis19 indicates that the effect arises from the topological edge states, which drive a change in sign of the magnetization and thus a reversal in the favoured magnetic state. Voltage control of magnetic states can be used to electrically pattern non-volatile magnetic-domain structures hosting chiral edge states, with applications ranging from reconfigurable microwave circuit elements to ultralow-power magnetic memories.","lang":"eng"}],"oa_version":"Preprint","pmid":1,"volume":588,"issue":"7836","publication_identifier":{"eissn":["1476-4687"],"issn":["0028-0836"]},"publication_status":"published","language":[{"iso":"eng"}],"type":"journal_article","article_type":"original","status":"public","keyword":["multidisciplinary"],"_id":"10618","date_updated":"2022-01-13T14:21:04Z","extern":"1"},{"date_created":"2022-01-20T10:55:36Z","date_published":"2020-10-01T00:00:00Z","page":"55","publication":"arXiv","language":[{"iso":"eng"}],"day":"01","publication_status":"submitted","year":"2020","month":"10","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2010.00584"}],"oa":1,"acknowledgement":"We thank NSF CMP program for suggestions regarding the topic and general structure of the workshop. This project was supported by the NSF DMR-2002329 and The Gordon and Betty Moore Foundation (GBMF) EPiQS initiative. We would like to sincerely thank A. Kapitulnik, A. J. Leggett, M.B. Maple, T.M. McQueen, M. Norman, P. S. Riseborough, and G. A. Sawatzky for their lectures at the workshop and advice on the writing of this manuscript. We would also like to thank G. Blumberg, C. Broholm, S. Crooker, N. Drichko, and A. Patel for helpful consultation on topics discussed\r\nherein. A number of individuals also had independent support: (AA, EH; GBMF-4305), (IMH; GBMF-9071), (HJC; NHMFL is supported by the NSF DMR-1644779 and the state of Florida), (YH, AZ; Miller Institute for Basic Research in Science), (YC; US DOE-BES DEAC02-06CH11357), (AS; Spallation Neutron Source, a DOE Office of Science User Facility operated by ORNL), (SAAG; ARO-W911NF-18-1-0290, NSF DMR-1455233), (YW; DOE-BES DE-SC0019331, GBMF-4532).","oa_version":"Preprint","abstract":[{"lang":"eng","text":"The understanding of material systems with strong electron-electron interactions is the central problem in modern condensed matter physics. Despite this, the essential physics of many of these materials is still not understood and we have no overall perspective on their properties. Moreover, we have very little ability to make predictions in this class of systems. In this manuscript we share our personal views of what the major open problems are in correlated electron systems and we discuss some possible routes to make progress in this rich and fascinating field. This manuscript is the result of the vigorous discussions and deliberations that took place at Johns Hopkins University during a three-day workshop January 27, 28, and 29, 2020 that brought together six senior scientists and 46 more junior scientists. Our hope, is that the topics we have presented will provide inspiration for others working in this field and motivation for the idea that significant progress can be made on very hard problems if we focus our collective energies."}],"title":"The future of the correlated electron problem","external_id":{"arxiv":["2010.00584"]},"article_processing_charge":"No","author":[{"last_name":"Alexandradinata","full_name":"Alexandradinata, A","first_name":"A"},{"last_name":"Armitage","full_name":"Armitage, N.P.","first_name":"N.P."},{"first_name":"Andrey","full_name":"Baydin, Andrey","last_name":"Baydin"},{"full_name":"Bi, Wenli","last_name":"Bi","first_name":"Wenli"},{"first_name":"Yue","full_name":"Cao, Yue","last_name":"Cao"},{"full_name":"Changlani, Hitesh J.","last_name":"Changlani","first_name":"Hitesh J."},{"last_name":"Chertkov","full_name":"Chertkov, Eli","first_name":"Eli"},{"last_name":"da Silva Neto","full_name":"da Silva Neto, Eduardo H.","first_name":"Eduardo H."},{"first_name":"Luca","last_name":"Delacretaz","full_name":"Delacretaz, Luca"},{"last_name":"El Baggari","full_name":"El Baggari, Ismail","first_name":"Ismail"},{"first_name":"G.M.","full_name":"Ferguson, G.M.","last_name":"Ferguson"},{"full_name":"Gannon, William J.","last_name":"Gannon","first_name":"William J."},{"last_name":"Ghorashi","full_name":"Ghorashi, Sayed Ali Akbar","first_name":"Sayed Ali Akbar"},{"last_name":"Goodge","full_name":"Goodge, Berit H.","first_name":"Berit H."},{"first_name":"Olga","last_name":"Goulko","full_name":"Goulko, Olga"},{"first_name":"G.","last_name":"Grissonnache","full_name":"Grissonnache, G."},{"last_name":"Hallas","full_name":"Hallas, Alannah","first_name":"Alannah"},{"first_name":"Ian M.","full_name":"Hayes, Ian M.","last_name":"Hayes"},{"first_name":"Yu","full_name":"He, Yu","last_name":"He"},{"full_name":"Huang, Edwin W.","last_name":"Huang","first_name":"Edwin W."},{"first_name":"Anshu","full_name":"Kogar, Anshu","last_name":"Kogar"},{"first_name":"Divine","last_name":"Kumah","full_name":"Kumah, Divine"},{"last_name":"Lee","full_name":"Lee, Jong Yeon","first_name":"Jong Yeon"},{"first_name":"A.","last_name":"Legros","full_name":"Legros, A."},{"last_name":"Mahmood","full_name":"Mahmood, Fahad","first_name":"Fahad"},{"full_name":"Maximenko, Yulia","last_name":"Maximenko","first_name":"Yulia"},{"first_name":"Nick","last_name":"Pellatz","full_name":"Pellatz, Nick"},{"first_name":"Hryhoriy","id":"edfc7cb1-526e-11ec-b05a-e6ecc27e4e48","full_name":"Polshyn, Hryhoriy","orcid":"0000-0001-8223-8896","last_name":"Polshyn"},{"last_name":"Sarkar","full_name":"Sarkar, Tarapada","first_name":"Tarapada"},{"first_name":"Allen","full_name":"Scheie, Allen","last_name":"Scheie"},{"first_name":"Kyle L.","last_name":"Seyler","full_name":"Seyler, Kyle L."},{"first_name":"Zhenzhong","last_name":"Shi","full_name":"Shi, Zhenzhong"},{"first_name":"Brian","full_name":"Skinner, Brian","last_name":"Skinner"},{"first_name":"Lucia","last_name":"Steinke","full_name":"Steinke, Lucia"},{"last_name":"Thirunavukkuarasu","full_name":"Thirunavukkuarasu, K.","first_name":"K."},{"first_name":"Thaís Victa","full_name":"Trevisan, Thaís Victa","last_name":"Trevisan"},{"full_name":"Vogl, Michael","last_name":"Vogl","first_name":"Michael"},{"first_name":"Pavel A.","last_name":"Volkov","full_name":"Volkov, Pavel A."},{"full_name":"Wang, Yao","last_name":"Wang","first_name":"Yao"},{"full_name":"Wang, Yishu","last_name":"Wang","first_name":"Yishu"},{"first_name":"Di","last_name":"Wei","full_name":"Wei, Di"},{"first_name":"Kaya","full_name":"Wei, Kaya","last_name":"Wei"},{"first_name":"Shuolong","full_name":"Yang, Shuolong","last_name":"Yang"},{"first_name":"Xian","full_name":"Zhang, Xian","last_name":"Zhang"},{"first_name":"Ya-Hui","last_name":"Zhang","full_name":"Zhang, Ya-Hui"},{"full_name":"Zhao, Liuyan","last_name":"Zhao","first_name":"Liuyan"},{"last_name":"Zong","full_name":"Zong, Alfred","first_name":"Alfred"}],"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","extern":"1","citation":{"mla":"Alexandradinata, A., et al. “The Future of the Correlated Electron Problem.” ArXiv.","short":"A. Alexandradinata, N.P. Armitage, A. Baydin, W. Bi, Y. Cao, H.J. Changlani, E. Chertkov, E.H. da Silva Neto, L. Delacretaz, I. El Baggari, G.M. Ferguson, W.J. Gannon, S.A.A. Ghorashi, B.H. Goodge, O. Goulko, G. Grissonnache, A. Hallas, I.M. Hayes, Y. He, E.W. Huang, A. Kogar, D. Kumah, J.Y. Lee, A. Legros, F. Mahmood, Y. Maximenko, N. Pellatz, H. Polshyn, T. Sarkar, A. Scheie, K.L. Seyler, Z. Shi, B. Skinner, L. Steinke, K. Thirunavukkuarasu, T.V. Trevisan, M. Vogl, P.A. Volkov, Y. Wang, Y. Wang, D. Wei, K. Wei, S. Yang, X. Zhang, Y.-H. Zhang, L. Zhao, A. Zong, ArXiv (n.d.).","ieee":"A. Alexandradinata et al., “The future of the correlated electron problem,” arXiv. .","apa":"Alexandradinata, A., Armitage, N. P., Baydin, A., Bi, W., Cao, Y., Changlani, H. J., … Zong, A. (n.d.). The future of the correlated electron problem. arXiv.","ama":"Alexandradinata A, Armitage NP, Baydin A, et al. The future of the correlated electron problem. arXiv.","chicago":"Alexandradinata, A, N.P. Armitage, Andrey Baydin, Wenli Bi, Yue Cao, Hitesh J. Changlani, Eli Chertkov, et al. “The Future of the Correlated Electron Problem.” ArXiv, n.d.","ista":"Alexandradinata A, Armitage NP, Baydin A, Bi W, Cao Y, Changlani HJ, Chertkov E, da Silva Neto EH, Delacretaz L, El Baggari I, Ferguson GM, Gannon WJ, Ghorashi SAA, Goodge BH, Goulko O, Grissonnache G, Hallas A, Hayes IM, He Y, Huang EW, Kogar A, Kumah D, Lee JY, Legros A, Mahmood F, Maximenko Y, Pellatz N, Polshyn H, Sarkar T, Scheie A, Seyler KL, Shi Z, Skinner B, Steinke L, Thirunavukkuarasu K, Trevisan TV, Vogl M, Volkov PA, Wang Y, Wang Y, Wei D, Wei K, Yang S, Zhang X, Zhang Y-H, Zhao L, Zong A. The future of the correlated electron problem. arXiv, ."},"date_updated":"2022-01-24T08:05:51Z","status":"public","type":"preprint","_id":"10650"},{"_id":"10673","series_title":"PMLR","status":"public","type":"conference","tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)","image":"/images/cc_by_nc_nd.png","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode","short":"CC BY-NC-ND (3.0)"},"conference":{"name":"ML: Machine Learning","end_date":"2020-07-18","location":"Virtual","start_date":"2020-07-12"},"ddc":["000"],"date_updated":"2022-01-26T11:14:27Z","department":[{"_id":"GradSch"},{"_id":"ToHe"}],"file_date_updated":"2022-01-26T11:08:51Z","oa_version":"Published Version","abstract":[{"text":"We propose a neural information processing system obtained by re-purposing the function of a biological neural circuit model to govern simulated and real-world control tasks. Inspired by the structure of the nervous system of the soil-worm, C. elegans, we introduce ordinary neural circuits (ONCs), defined as the model of biological neural circuits reparameterized for the control of alternative tasks. We first demonstrate that ONCs realize networks with higher maximum flow compared to arbitrary wired networks. We then learn instances of ONCs to control a series of robotic tasks, including the autonomous parking of a real-world rover robot. For reconfiguration of the purpose of the neural circuit, we adopt a search-based optimization algorithm. Ordinary neural circuits perform on par and, in some cases, significantly surpass the performance of contemporary deep learning models. ONC networks are compact, 77% sparser than their counterpart neural controllers, and their neural dynamics are fully interpretable at the cell-level.","lang":"eng"}],"alternative_title":["PMLR"],"scopus_import":"1","main_file_link":[{"open_access":"1","url":"http://proceedings.mlr.press/v119/hasani20a.html"}],"file":[{"file_id":"10691","checksum":"c9a4a29161777fc1a89ef451c040e3b1","success":1,"access_level":"open_access","relation":"main_file","content_type":"application/pdf","date_created":"2022-01-26T11:08:51Z","file_name":"2020_PMLR_Hasani.pdf","creator":"cchlebak","date_updated":"2022-01-26T11:08:51Z","file_size":2329798}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["2640-3498"]},"publication_status":"published","license":"https://creativecommons.org/licenses/by-nc-nd/3.0/","project":[{"name":"The Wittgenstein Prize","grant_number":"Z211","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","citation":{"apa":"Hasani, R., Lechner, M., Amini, A., Rus, D., & Grosu, R. (2020). A natural lottery ticket winner: Reinforcement learning with ordinary neural circuits. In Proceedings of the 37th International Conference on Machine Learning (pp. 4082–4093). Virtual.","ama":"Hasani R, Lechner M, Amini A, Rus D, Grosu R. A natural lottery ticket winner: Reinforcement learning with ordinary neural circuits. In: Proceedings of the 37th International Conference on Machine Learning. PMLR. ; 2020:4082-4093.","ieee":"R. Hasani, M. Lechner, A. Amini, D. Rus, and R. Grosu, “A natural lottery ticket winner: Reinforcement learning with ordinary neural circuits,” in Proceedings of the 37th International Conference on Machine Learning, Virtual, 2020, pp. 4082–4093.","short":"R. Hasani, M. Lechner, A. Amini, D. Rus, R. Grosu, in:, Proceedings of the 37th International Conference on Machine Learning, 2020, pp. 4082–4093.","mla":"Hasani, Ramin, et al. “A Natural Lottery Ticket Winner: Reinforcement Learning with Ordinary Neural Circuits.” Proceedings of the 37th International Conference on Machine Learning, 2020, pp. 4082–93.","ista":"Hasani R, Lechner M, Amini A, Rus D, Grosu R. 2020. A natural lottery ticket winner: Reinforcement learning with ordinary neural circuits. Proceedings of the 37th International Conference on Machine Learning. ML: Machine LearningPMLR, PMLR, , 4082–4093.","chicago":"Hasani, Ramin, Mathias Lechner, Alexander Amini, Daniela Rus, and Radu Grosu. “A Natural Lottery Ticket Winner: Reinforcement Learning with Ordinary Neural Circuits.” In Proceedings of the 37th International Conference on Machine Learning, 4082–93. PMLR, 2020."},"title":"A natural lottery ticket winner: Reinforcement learning with ordinary neural circuits","author":[{"first_name":"Ramin","last_name":"Hasani","full_name":"Hasani, Ramin"},{"id":"3DC22916-F248-11E8-B48F-1D18A9856A87","first_name":"Mathias","last_name":"Lechner","full_name":"Lechner, Mathias"},{"last_name":"Amini","full_name":"Amini, Alexander","first_name":"Alexander"},{"first_name":"Daniela","full_name":"Rus, Daniela","last_name":"Rus"},{"full_name":"Grosu, Radu","last_name":"Grosu","first_name":"Radu"}],"article_processing_charge":"No","acknowledgement":"RH and RG are partially supported by Horizon-2020 ECSEL Project grant No. 783163 (iDev40), Productive 4.0, and ATBMBFW CPS-IoT Ecosystem. ML was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23\r\n(Wittgenstein Award). AA is supported by the National Science Foundation (NSF) Graduate Research Fellowship\r\nProgram. RH and DR are partially supported by The Boeing Company and JP Morgan Chase. This research work is\r\npartially drawn from the PhD dissertation of RH.\r\n","quality_controlled":"1","oa":1,"publication":"Proceedings of the 37th International Conference on Machine Learning","has_accepted_license":"1","year":"2020","date_published":"2020-01-01T00:00:00Z","date_created":"2022-01-25T15:50:34Z","page":"4082-4093"},{"extern":"1","date_updated":"2022-01-27T10:58:38Z","status":"public","conference":{"start_date":"2020-03-02","end_date":"2020-03-06","location":"Denver, CO, United States","name":"APS: American Physical Society"},"type":"conference","_id":"10693","volume":65,"issue":"1","language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"issn":["0003-0503"]},"intvolume":" 65","month":"03","main_file_link":[{"open_access":"1","url":"https://meetings.aps.org/Meeting/MAR20/Session/B54.7"}],"alternative_title":["Bulletin of the American Physical Society"],"oa_version":"Published Version","abstract":[{"lang":"eng","text":"High quality graphene heterostructures host an array of fractional quantum Hall isospin ferromagnets with diverse spin and valley orders. While a variety of phase transitions have been observed, disentangling the isospin phase diagram of these states is hampered by the absence of direct probes of spin and valley order. I will describe nonlocal transport measurements based on launching spin waves from a gate defined lateral heterojunction, performed in ultra-clean Corbino geometry graphene devices. At high magnetic fields, we find that the spin-wave transport signal is detected in all FQH states between ν = 0 and 1; however, between ν = 1 and 2 only odd numerator FQH states show finite nonlocal transport, despite the identical ground state spin polarizations in odd- and even numerator states. The results reveal that the neutral spin-waves are both spin and sublattice polarized making them a sensitive probe of ground state sublattice structure. Armed with this understanding, we use nonlocal transport signal to a magnetic field tuned isospin phase transition, showing that the emergent even denominator state at ν = 1/2 in monolayer graphene is indeed a multicomponent state featuring equal populations on each sublattice."}],"title":"Sublattice resolved spin wave transport through graphene fractional quantum Hall states as a probe of isospin order","article_processing_charge":"No","author":[{"first_name":"Haoxin","last_name":"Zhou","full_name":"Zhou, Haoxin"},{"id":"edfc7cb1-526e-11ec-b05a-e6ecc27e4e48","first_name":"Hryhoriy","last_name":"Polshyn","orcid":"0000-0001-8223-8896","full_name":"Polshyn, Hryhoriy"},{"first_name":"Takashi","last_name":"Tanaguchi","full_name":"Tanaguchi, Takashi"},{"first_name":"Kenji","last_name":"Watanabe","full_name":"Watanabe, Kenji"},{"full_name":"Young, Andrea","last_name":"Young","first_name":"Andrea"}],"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","citation":{"mla":"Zhou, Haoxin, et al. “Sublattice Resolved Spin Wave Transport through Graphene Fractional Quantum Hall States as a Probe of Isospin Order.” APS March Meeting 2020, vol. 65, no. 1, B54. 00007, American Physical Society, 2020.","short":"H. Zhou, H. Polshyn, T. Tanaguchi, K. Watanabe, A. Young, in:, APS March Meeting 2020, American Physical Society, 2020.","ieee":"H. Zhou, H. Polshyn, T. Tanaguchi, K. Watanabe, and A. Young, “Sublattice resolved spin wave transport through graphene fractional quantum Hall states as a probe of isospin order,” in APS March Meeting 2020, Denver, CO, United States, 2020, vol. 65, no. 1.","apa":"Zhou, H., Polshyn, H., Tanaguchi, T., Watanabe, K., & Young, A. (2020). Sublattice resolved spin wave transport through graphene fractional quantum Hall states as a probe of isospin order. In APS March Meeting 2020 (Vol. 65). Denver, CO, United States: American Physical Society.","ama":"Zhou H, Polshyn H, Tanaguchi T, Watanabe K, Young A. Sublattice resolved spin wave transport through graphene fractional quantum Hall states as a probe of isospin order. In: APS March Meeting 2020. Vol 65. American Physical Society; 2020.","chicago":"Zhou, Haoxin, Hryhoriy Polshyn, Takashi Tanaguchi, Kenji Watanabe, and Andrea Young. “Sublattice Resolved Spin Wave Transport through Graphene Fractional Quantum Hall States as a Probe of Isospin Order.” In APS March Meeting 2020, Vol. 65. American Physical Society, 2020.","ista":"Zhou H, Polshyn H, Tanaguchi T, Watanabe K, Young A. 2020. Sublattice resolved spin wave transport through graphene fractional quantum Hall states as a probe of isospin order. APS March Meeting 2020. APS: American Physical Society, Bulletin of the American Physical Society, vol. 65, B54. 00007."},"article_number":"B54. 00007","date_created":"2022-01-27T10:50:10Z","date_published":"2020-03-01T00:00:00Z","publication":"APS March Meeting 2020","day":"01","year":"2020","oa":1,"quality_controlled":"1","publisher":"American Physical Society"},{"conference":{"location":"Denver, CO, United States","end_date":"2020-03-06","start_date":"2020-03-02","name":"APS: American Physical Society"},"type":"conference","status":"public","_id":"10698","date_updated":"2023-02-21T15:57:52Z","extern":"1","main_file_link":[{"url":"https://meetings.aps.org/Meeting/MAR20/Session/B59.11","open_access":"1"}],"alternative_title":["Bulletin of the American Physical Society"],"intvolume":" 65","month":"03","abstract":[{"text":"This is the second of three talks describing the observation and characterization of a ferromagnetic moiré heterostructure based on twisted bilayer graphene aligned to hexagonal boron nitride. I will compare the qualitative and quantitative features of this observed quantum anomalous Hall state to traditional systems engineered from thin film (Bi,Sb)2Te3 topological insulators. In particular, we find that the measured electronic energy gap of ~30K is several times higher than the Curie temperature, consistent with a lack of disorder associated with magnetic dopants. In this system, the quantization arises from spontaneous ferromagnetic polarization into a single spin and valley moiré subband, which is topological despite the lack of spin orbit coupling. I will also discuss the observation of current induced switching, which allows the magnetic state of the heterostructure to be controllably reversed with currents as small as a few nanoamperes.","lang":"eng"}],"oa_version":"Published Version","related_material":{"record":[{"status":"public","id":"10619","relation":"other"}]},"issue":"1","volume":65,"publication_status":"published","language":[{"iso":"eng"}],"article_number":"B59.00011","article_processing_charge":"No","external_id":{"arxiv":["1907.00261"]},"author":[{"first_name":"Marec","last_name":"Serlin","full_name":"Serlin, Marec"},{"first_name":"Charles","full_name":"Tschirhart, Charles","last_name":"Tschirhart"},{"orcid":"0000-0001-8223-8896","full_name":"Polshyn, Hryhoriy","last_name":"Polshyn","id":"edfc7cb1-526e-11ec-b05a-e6ecc27e4e48","first_name":"Hryhoriy"},{"first_name":"Yuxuan","last_name":"Zhang","full_name":"Zhang, Yuxuan"},{"first_name":"Jiacheng","full_name":"Zhu, Jiacheng","last_name":"Zhu"},{"first_name":"Martin E.","last_name":"Huber","full_name":"Huber, Martin E."},{"last_name":"Balents","full_name":"Balents, Leon","first_name":"Leon"},{"last_name":"Watanabe","full_name":"Watanabe, Kenji","first_name":"Kenji"},{"last_name":"Tanaguchi","full_name":"Tanaguchi, Takashi","first_name":"Takashi"},{"last_name":"Young","full_name":"Young, Andrea","first_name":"Andrea"}],"title":"Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part II: Temperature dependence and current switching","citation":{"chicago":"Serlin, Marec, Charles Tschirhart, Hryhoriy Polshyn, Yuxuan Zhang, Jiacheng Zhu, Martin E. Huber, Leon Balents, Kenji Watanabe, Takashi Tanaguchi, and Andrea Young. “Intrinsic Quantized Anomalous Hall Effect in a Moiré Heterostructure, Part II: Temperature Dependence and Current Switching.” In APS March Meeting 2020, Vol. 65. American Physical Society, 2020.","ista":"Serlin M, Tschirhart C, Polshyn H, Zhang Y, Zhu J, Huber ME, Balents L, Watanabe K, Tanaguchi T, Young A. 2020. Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part II: Temperature dependence and current switching. APS March Meeting 2020. APS: American Physical Society, Bulletin of the American Physical Society, vol. 65, B59.00011.","mla":"Serlin, Marec, et al. “Intrinsic Quantized Anomalous Hall Effect in a Moiré Heterostructure, Part II: Temperature Dependence and Current Switching.” APS March Meeting 2020, vol. 65, no. 1, B59.00011, American Physical Society, 2020.","ama":"Serlin M, Tschirhart C, Polshyn H, et al. Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part II: Temperature dependence and current switching. In: APS March Meeting 2020. Vol 65. American Physical Society; 2020.","apa":"Serlin, M., Tschirhart, C., Polshyn, H., Zhang, Y., Zhu, J., Huber, M. E., … Young, A. (2020). Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part II: Temperature dependence and current switching. In APS March Meeting 2020 (Vol. 65). Denver, CO, United States: American Physical Society.","ieee":"M. Serlin et al., “Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part II: Temperature dependence and current switching,” in APS March Meeting 2020, Denver, CO, United States, 2020, vol. 65, no. 1.","short":"M. Serlin, C. Tschirhart, H. Polshyn, Y. Zhang, J. Zhu, M.E. Huber, L. Balents, K. Watanabe, T. Tanaguchi, A. Young, in:, APS March Meeting 2020, American Physical Society, 2020."},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","oa":1,"publisher":"American Physical Society","quality_controlled":"1","acknowledgement":"I would like to thank the MURI Program, AFOSR, Sloan Foundation, and the ARO for their generous support of this work.","date_created":"2022-01-28T10:46:57Z","date_published":"2020-03-01T00:00:00Z","year":"2020","publication":"APS March Meeting 2020","day":"01"},{"date_published":"2020-03-01T00:00:00Z","date_created":"2022-01-28T10:57:49Z","year":"2020","day":"01","publication":"APS March Meeting 2020","quality_controlled":"1","publisher":"American Physical Society","oa":1,"acknowledgement":"I would like to thank the MURI program, Sloan foundation, AFOSR, and ARO for their generous support of this work. I would also like to thank the NSF GRFP and the Hertz foundation for their generous support of my graduate studies.","author":[{"last_name":"Tschirhart","full_name":"Tschirhart, Charles","first_name":"Charles"},{"first_name":"Marec","full_name":"Serlin, Marec","last_name":"Serlin"},{"first_name":"Hryhoriy","id":"edfc7cb1-526e-11ec-b05a-e6ecc27e4e48","last_name":"Polshyn","orcid":"0000-0001-8223-8896","full_name":"Polshyn, Hryhoriy"},{"first_name":"Yuxuan","full_name":"Zhang, Yuxuan","last_name":"Zhang"},{"first_name":"Jiacheng","last_name":"Zhu","full_name":"Zhu, Jiacheng"},{"full_name":"Balents, Leon","last_name":"Balents","first_name":"Leon"},{"first_name":"Martin E.","last_name":"Huber","full_name":"Huber, Martin E."},{"first_name":"Kenji","full_name":"Watanabe, Kenji","last_name":"Watanabe"},{"last_name":"Tanaguchi","full_name":"Tanaguchi, Takashi","first_name":"Takashi"},{"full_name":"Young, Andrea","last_name":"Young","first_name":"Andrea"}],"article_processing_charge":"No","external_id":{"arxiv":["1907.00261"]},"title":"Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part III: Scanning probe magnetometry","citation":{"chicago":"Tschirhart, Charles, Marec Serlin, Hryhoriy Polshyn, Yuxuan Zhang, Jiacheng Zhu, Leon Balents, Martin E. Huber, Kenji Watanabe, Takashi Tanaguchi, and Andrea Young. “Intrinsic Quantized Anomalous Hall Effect in a Moiré Heterostructure, Part III: Scanning Probe Magnetometry.” In APS March Meeting 2020, Vol. 65. American Physical Society, 2020.","ista":"Tschirhart C, Serlin M, Polshyn H, Zhang Y, Zhu J, Balents L, Huber ME, Watanabe K, Tanaguchi T, Young A. 2020. Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part III: Scanning probe magnetometry. APS March Meeting 2020. APS: American Physical Society, Bulletin of the American Physical Society, vol. 65, B59.00013.","mla":"Tschirhart, Charles, et al. “Intrinsic Quantized Anomalous Hall Effect in a Moiré Heterostructure, Part III: Scanning Probe Magnetometry.” APS March Meeting 2020, vol. 65, no. 1, B59.00013, American Physical Society, 2020.","short":"C. Tschirhart, M. Serlin, H. Polshyn, Y. Zhang, J. Zhu, L. Balents, M.E. Huber, K. Watanabe, T. Tanaguchi, A. Young, in:, APS March Meeting 2020, American Physical Society, 2020.","ieee":"C. Tschirhart et al., “Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part III: Scanning probe magnetometry,” in APS March Meeting 2020, Denver, CO, United States, 2020, vol. 65, no. 1.","ama":"Tschirhart C, Serlin M, Polshyn H, et al. Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part III: Scanning probe magnetometry. In: APS March Meeting 2020. Vol 65. American Physical Society; 2020.","apa":"Tschirhart, C., Serlin, M., Polshyn, H., Zhang, Y., Zhu, J., Balents, L., … Young, A. (2020). Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part III: Scanning probe magnetometry. In APS March Meeting 2020 (Vol. 65). Denver, CO, United States: American Physical Society."},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","article_number":"B59.00013","volume":65,"issue":"1","related_material":{"record":[{"relation":"other","id":"10619","status":"public"}]},"publication_identifier":{"issn":["0003-0503"]},"publication_status":"published","language":[{"iso":"eng"}],"alternative_title":["Bulletin of the American Physical Society"],"main_file_link":[{"open_access":"1","url":"https://meetings.aps.org/Meeting/MAR20/Session/B59.13"}],"month":"03","intvolume":" 65","abstract":[{"text":"This is the third of three talks describing the observation and characterization of a ferromagnetic moiré heterostructure based on twisted bilayer graphene aligned to hexagonal boron nitride. In this segment I will present scanning probe magnetometry data acquired using a nanoSQUID-on-tip microscope, which provides ~150 nm spatial resolution and a field sensitivity of ~10 nT/rtHz. We study the distribution of magnetic domains within the device as a function of density, magnetic field training, and DC current. Our data allow us to constrain the magnitude of the orbital magnetic moment of the electrons in the QAH state. Comparison with simultaneously acquired transport data allows us to precisely correlate single domain dynamics with discrete jumps in the observed anomalous Hall signal.","lang":"eng"}],"oa_version":"Published Version","date_updated":"2023-02-21T15:57:52Z","extern":"1","type":"conference","conference":{"name":"APS: American Physical Society","end_date":"2020-03-06","location":"Denver, CO, United States","start_date":"2020-03-02"},"status":"public","_id":"10699"},{"citation":{"chicago":"Zhang, Yuxuan, Marec Serlin, Charles Tschirhart, Hryhoriy Polshyn, Jiacheng Zhu, Leon Balents, Martin E. Huber, Takashi Taniguchi, Kenji Watanabe, and Andrea Young. “Intrinsic Quantized Anomalous Hall Effect in a Moiré Heterostructure, Part I: Device Fabrication and Transport.” In APS March Meeting 2020, Vol. 65. American Physical Society, 2020.","ista":"Zhang Y, Serlin M, Tschirhart C, Polshyn H, Zhu J, Balents L, Huber ME, Taniguchi T, Watanabe K, Young A. 2020. Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part I: Device fabrication and transport. APS March Meeting 2020. APS: American Physical Society, Bulletin of the American Physical Society, vol. 65, B59.00012.","mla":"Zhang, Yuxuan, et al. “Intrinsic Quantized Anomalous Hall Effect in a Moiré Heterostructure, Part I: Device Fabrication and Transport.” APS March Meeting 2020, vol. 65, no. 1, B59.00012, American Physical Society, 2020.","apa":"Zhang, Y., Serlin, M., Tschirhart, C., Polshyn, H., Zhu, J., Balents, L., … Young, A. (2020). Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part I: Device fabrication and transport. In APS March Meeting 2020 (Vol. 65). Denver, CO, United States: American Physical Society.","ama":"Zhang Y, Serlin M, Tschirhart C, et al. Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part I: Device fabrication and transport. In: APS March Meeting 2020. Vol 65. American Physical Society; 2020.","ieee":"Y. Zhang et al., “Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part I: Device fabrication and transport,” in APS March Meeting 2020, Denver, CO, United States, 2020, vol. 65, no. 1.","short":"Y. Zhang, M. Serlin, C. Tschirhart, H. Polshyn, J. Zhu, L. Balents, M.E. Huber, T. Taniguchi, K. Watanabe, A. Young, in:, APS March Meeting 2020, American Physical Society, 2020."},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","author":[{"full_name":"Zhang, Yuxuan","last_name":"Zhang","first_name":"Yuxuan"},{"first_name":"Marec","last_name":"Serlin","full_name":"Serlin, Marec"},{"last_name":"Tschirhart","full_name":"Tschirhart, Charles","first_name":"Charles"},{"full_name":"Polshyn, Hryhoriy","orcid":"0000-0001-8223-8896","last_name":"Polshyn","id":"edfc7cb1-526e-11ec-b05a-e6ecc27e4e48","first_name":"Hryhoriy"},{"last_name":"Zhu","full_name":"Zhu, Jiacheng","first_name":"Jiacheng"},{"first_name":"Leon","full_name":"Balents, Leon","last_name":"Balents"},{"first_name":"Martin E.","last_name":"Huber","full_name":"Huber, Martin E."},{"first_name":"Takashi","last_name":"Taniguchi","full_name":"Taniguchi, Takashi"},{"first_name":"Kenji","last_name":"Watanabe","full_name":"Watanabe, Kenji"},{"last_name":"Young","full_name":"Young, Andrea","first_name":"Andrea"}],"external_id":{"arxiv":["1907.00261"]},"article_processing_charge":"No","title":"Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part I: Device fabrication and transport","article_number":"B59.00012","year":"2020","day":"01","publication":"APS March Meeting 2020","date_published":"2020-03-01T00:00:00Z","date_created":"2022-01-28T10:28:35Z","acknowledgement":"I would like to thank the MURI program, Sloan foundation, AFOSR, and ARO for their generous support of this work.","quality_controlled":"1","publisher":"American Physical Society","oa":1,"date_updated":"2023-02-21T15:57:52Z","extern":"1","_id":"10697","type":"conference","conference":{"name":"APS: American Physical Society","start_date":"2020-03-02","end_date":"2020-03-06","location":"Denver, CO, United States"},"status":"public","publication_status":"published","language":[{"iso":"eng"}],"volume":65,"related_material":{"record":[{"id":"10619","status":"public","relation":"other"}]},"issue":"1","abstract":[{"text":"We report the observation of a quantized anomalous Hall effect in a moiré heterostructure consisting of twisted bilayer graphene aligned to an encapsulating hBN substrate. The effect occurs at a density of 3 electrons per superlattice unit cell, where we observe magnetic hysteresis and a Hall resistance quantized to within 0.1% of the resistance quantum at temperatures as high as 3K. In this first of 3 talks, I will describe the fabrication procedure for our device as well as basic transport characterization measurements. I will introduce the phenomenology of twisted bilayer graphene and present evidence for hBN alignment as manifested in the hierarchy of symmetry-breaking gaps and anomalous magnetoresistance.","lang":"eng"}],"oa_version":"Published Version","alternative_title":["Bulletin of the American Physical Society"],"main_file_link":[{"open_access":"1","url":"https://meetings.aps.org/Meeting/MAR20/Session/B59.12"}],"month":"03","intvolume":" 65"}]