--- _id: '12637' abstract: - lang: eng text: The performance of glaciohydrological models which simulate catchment response to climate variability depends to a large degree on the data used to force the models. The forcing data become increasingly important in high-elevation, glacierized catchments where the interplay between extreme topography, climate, and the cryosphere is complex. It is challenging to generate a reliable forcing data set that captures this spatial heterogeneity. In this paper, we analyze the results of a 1 year field campaign focusing on air temperature and precipitation observations in the Langtang valley in the Nepalese Himalayas. We use the observed time series to characterize both temperature lapse rates (LRs) and precipitation gradients (PGs). We study their spatial and temporal variability, and we attempt to identify possible controlling factors. We show that very clear LRs exist in the valley and that there are strong seasonal differences related to the water vapor content in the atmosphere. Results also show that the LRs are generally shallower than the commonly used environmental lapse rates. The analysis of the precipitation observations reveals that there is great variability in precipitation over short horizontal distances. A uniform valley wide PG cannot be established, and several scale-dependent mechanisms may explain our observations. We complete our analysis by showing the impact of the observed LRs and PGs on the outputs of the TOPKAPI-ETH glaciohydrological model. We conclude that LRs and PGs have a very large impact on the water balance composition and that short-term monitoring campaigns have the potential to improve model quality considerably. article_processing_charge: No article_type: original author: - first_name: W. W. full_name: Immerzeel, W. W. last_name: Immerzeel - first_name: L. full_name: Petersen, L. last_name: Petersen - first_name: S. full_name: Ragettli, S. last_name: Ragettli - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti citation: ama: Immerzeel WW, Petersen L, Ragettli S, Pellicciotti F. The importance of observed gradients of air temperature and precipitation for modeling runoff from a glacierized watershed in the Nepalese Himalayas. Water Resources Research. 2014;50(3):2212-2226. doi:10.1002/2013wr014506 apa: Immerzeel, W. W., Petersen, L., Ragettli, S., & Pellicciotti, F. (2014). The importance of observed gradients of air temperature and precipitation for modeling runoff from a glacierized watershed in the Nepalese Himalayas. Water Resources Research. American Geophysical Union. https://doi.org/10.1002/2013wr014506 chicago: Immerzeel, W. W., L. Petersen, S. Ragettli, and Francesca Pellicciotti. “The Importance of Observed Gradients of Air Temperature and Precipitation for Modeling Runoff from a Glacierized Watershed in the Nepalese Himalayas.” Water Resources Research. American Geophysical Union, 2014. https://doi.org/10.1002/2013wr014506. ieee: W. W. Immerzeel, L. Petersen, S. Ragettli, and F. Pellicciotti, “The importance of observed gradients of air temperature and precipitation for modeling runoff from a glacierized watershed in the Nepalese Himalayas,” Water Resources Research, vol. 50, no. 3. American Geophysical Union, pp. 2212–2226, 2014. ista: Immerzeel WW, Petersen L, Ragettli S, Pellicciotti F. 2014. The importance of observed gradients of air temperature and precipitation for modeling runoff from a glacierized watershed in the Nepalese Himalayas. Water Resources Research. 50(3), 2212–2226. mla: Immerzeel, W. W., et al. “The Importance of Observed Gradients of Air Temperature and Precipitation for Modeling Runoff from a Glacierized Watershed in the Nepalese Himalayas.” Water Resources Research, vol. 50, no. 3, American Geophysical Union, 2014, pp. 2212–26, doi:10.1002/2013wr014506. short: W.W. Immerzeel, L. Petersen, S. Ragettli, F. Pellicciotti, Water Resources Research 50 (2014) 2212–2226. date_created: 2023-02-20T08:17:01Z date_published: 2014-03-01T00:00:00Z date_updated: 2023-02-24T08:28:23Z day: '01' doi: 10.1002/2013wr014506 extern: '1' intvolume: ' 50' issue: '3' keyword: - Water Science and Technology language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1002/2013WR014506 month: '03' oa: 1 oa_version: Published Version page: 2212-2226 publication: Water Resources Research publication_identifier: eissn: - 1944-7973 issn: - 0043-1397 publication_status: published publisher: American Geophysical Union quality_controlled: '1' scopus_import: '1' status: public title: The importance of observed gradients of air temperature and precipitation for modeling runoff from a glacierized watershed in the Nepalese Himalayas type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 50 year: '2014' ... --- _id: '12636' abstract: - lang: eng text: Himalayan glacier tongues are commonly debris covered and they are an important source of melt water. However, they remain relatively unstudied because of the inaccessibility of the terrain and the difficulties in field work caused by the thick debris mantles. Observations of debris-covered glaciers are therefore scarce and airborne remote sensing may bridge the gap between scarce field observations and coarse resolution space-borne remote sensing. In this study we deploy an Unmanned Aerial Vehicle (UAV) before and after the melt and monsoon season (May and October 2013) over the debris-covered tongue of the Lirung Glacier in Nepal. Based on stereo-imaging and the structure for motion algorithm we derive highly detailed ortho-mosaics and digital elevation models (DEMs), which we geometrically correct using differential GPS observations collected in the field. Based on DEM differencing and manual feature tracking we derive the mass loss and the surface velocity of the glacier at a high spatial accuracy. On average, mass loss is limited and the surface velocity is very small. However, the spatial variability of melt rates is very high, and ice cliffs and supra-glacial ponds show mass losses that can be an order of magnitude higher than the average. We suggest that future research should focus on the interaction between supra-glacial ponds, ice cliffs and englacial hydrology to further understand the dynamics of debris-covered glaciers. Finally, we conclude that UAV deployment has large potential in glaciology and it may revolutionize methods currently applied in studying glacier surface features. article_processing_charge: No article_type: original author: - first_name: W.W. full_name: Immerzeel, W.W. last_name: Immerzeel - first_name: P.D.A. full_name: Kraaijenbrink, P.D.A. last_name: Kraaijenbrink - first_name: J.M. full_name: Shea, J.M. last_name: Shea - first_name: A.B. full_name: Shrestha, A.B. last_name: Shrestha - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti - first_name: M.F.P. full_name: Bierkens, M.F.P. last_name: Bierkens - first_name: S.M. full_name: de Jong, S.M. last_name: de Jong citation: ama: Immerzeel WW, Kraaijenbrink PDA, Shea JM, et al. High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial vehicles. Remote Sensing of Environment. 2014;150(7):93-103. doi:10.1016/j.rse.2014.04.025 apa: Immerzeel, W. W., Kraaijenbrink, P. D. A., Shea, J. M., Shrestha, A. B., Pellicciotti, F., Bierkens, M. F. P., & de Jong, S. M. (2014). High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial vehicles. Remote Sensing of Environment. Elsevier. https://doi.org/10.1016/j.rse.2014.04.025 chicago: Immerzeel, W.W., P.D.A. Kraaijenbrink, J.M. Shea, A.B. Shrestha, Francesca Pellicciotti, M.F.P. Bierkens, and S.M. de Jong. “High-Resolution Monitoring of Himalayan Glacier Dynamics Using Unmanned Aerial Vehicles.” Remote Sensing of Environment. Elsevier, 2014. https://doi.org/10.1016/j.rse.2014.04.025. ieee: W. W. Immerzeel et al., “High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial vehicles,” Remote Sensing of Environment, vol. 150, no. 7. Elsevier, pp. 93–103, 2014. ista: Immerzeel WW, Kraaijenbrink PDA, Shea JM, Shrestha AB, Pellicciotti F, Bierkens MFP, de Jong SM. 2014. High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial vehicles. Remote Sensing of Environment. 150(7), 93–103. mla: Immerzeel, W. W., et al. “High-Resolution Monitoring of Himalayan Glacier Dynamics Using Unmanned Aerial Vehicles.” Remote Sensing of Environment, vol. 150, no. 7, Elsevier, 2014, pp. 93–103, doi:10.1016/j.rse.2014.04.025. short: W.W. Immerzeel, P.D.A. Kraaijenbrink, J.M. Shea, A.B. Shrestha, F. Pellicciotti, M.F.P. Bierkens, S.M. de Jong, Remote Sensing of Environment 150 (2014) 93–103. date_created: 2023-02-20T08:16:56Z date_published: 2014-07-01T00:00:00Z date_updated: 2023-02-24T08:32:39Z day: '01' doi: 10.1016/j.rse.2014.04.025 extern: '1' intvolume: ' 150' issue: '7' keyword: - Computers in Earth Sciences - Geology - Soil Science language: - iso: eng month: '07' oa_version: None page: 93-103 publication: Remote Sensing of Environment publication_identifier: issn: - 0034-4257 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial vehicles type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 150 year: '2014' ... --- _id: '12635' abstract: - lang: eng text: 'Switzerland is one of the countries with some of the longest and best glaciological data sets. Its glaciers and their changes in response to climate have been extensively investigated, and the number and quality of related studies are notable. However, a comprehensive review of glacier changes and their impact on the hydrology of glacierised catchments for Switzerland is missing and we use the opportunity provided by the EU-FP7 ACQWA project to review the current state of knowledge about past changes and future projections. We examine the type of models that have been applied to infer glacier evolution and identify knowledge gaps that should be addressed in future research in addition to those indicated in previous publications. Common characteristics in long-term series of projected future glacier runoff are an initial peak followed by a decline, associated with shifts in seasonality, earlier melt onset and reduced summer runoff. However, the quantitative predictions are difficult to compare, as studies differ in terms of model structure, calibration strategies, input data, temporal and spatial resolution as well as future scenarios used for impact studies. We identify two sources of uncertainties among those emerging from recent research, and use simulations over four glaciers to: i) quantify the importance of the correct extrapolation of air temperature, and ii) point at the key role played by debris cover in modulating glacier response.' article_processing_charge: No article_type: review author: - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti - first_name: M. full_name: Carenzo, M. last_name: Carenzo - first_name: R. full_name: Bordoy, R. last_name: Bordoy - first_name: M. full_name: Stoffel, M. last_name: Stoffel citation: ama: 'Pellicciotti F, Carenzo M, Bordoy R, Stoffel M. Changes in glaciers in the Swiss Alps and impact on basin hydrology: Current state of the art and future research. Science of The Total Environment. 2014;493:1152-1170. doi:10.1016/j.scitotenv.2014.04.022' apa: 'Pellicciotti, F., Carenzo, M., Bordoy, R., & Stoffel, M. (2014). Changes in glaciers in the Swiss Alps and impact on basin hydrology: Current state of the art and future research. Science of The Total Environment. Elsevier. https://doi.org/10.1016/j.scitotenv.2014.04.022' chicago: 'Pellicciotti, Francesca, M. Carenzo, R. Bordoy, and M. Stoffel. “Changes in Glaciers in the Swiss Alps and Impact on Basin Hydrology: Current State of the Art and Future Research.” Science of The Total Environment. Elsevier, 2014. https://doi.org/10.1016/j.scitotenv.2014.04.022.' ieee: 'F. Pellicciotti, M. Carenzo, R. Bordoy, and M. Stoffel, “Changes in glaciers in the Swiss Alps and impact on basin hydrology: Current state of the art and future research,” Science of The Total Environment, vol. 493. Elsevier, pp. 1152–1170, 2014.' ista: 'Pellicciotti F, Carenzo M, Bordoy R, Stoffel M. 2014. Changes in glaciers in the Swiss Alps and impact on basin hydrology: Current state of the art and future research. Science of The Total Environment. 493, 1152–1170.' mla: 'Pellicciotti, Francesca, et al. “Changes in Glaciers in the Swiss Alps and Impact on Basin Hydrology: Current State of the Art and Future Research.” Science of The Total Environment, vol. 493, Elsevier, 2014, pp. 1152–70, doi:10.1016/j.scitotenv.2014.04.022.' short: F. Pellicciotti, M. Carenzo, R. Bordoy, M. Stoffel, Science of The Total Environment 493 (2014) 1152–1170. date_created: 2023-02-20T08:16:51Z date_published: 2014-09-15T00:00:00Z date_updated: 2023-02-24T08:36:04Z day: '15' doi: 10.1016/j.scitotenv.2014.04.022 extern: '1' intvolume: ' 493' keyword: - Pollution - Waste Management and Disposal - Environmental Chemistry - Environmental Engineering language: - iso: eng month: '09' oa_version: None page: 1152-1170 publication: Science of The Total Environment publication_identifier: issn: - 0048-9697 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: 'Changes in glaciers in the Swiss Alps and impact on basin hydrology: Current state of the art and future research' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 493 year: '2014' ... --- _id: '12632' abstract: - lang: eng text: We investigate the performance of five glacier melt models over a multi-decadal period in order to assess their ability to model future glacier response. The models range from a simple degree-day model, based solely on air temperature, to more-sophisticated models, including the full shortwave radiation balance. In addition to the empirical models, the performance of a physically based energy-balance (EB) model is examined. The melt models are coupled to an accumulation and a surface evolution model and applied in a distributed manner to Rhonegletscher, Switzerland, over the period 1929–2012 at hourly resolution. For calibration, seasonal mass-balance measurements (2006–12) are used. Decadal ice volume changes for six periods in the years 1929–2012 serve for model validation. Over the period 2006–12, there are almost no differences in performance between the models, except for EB, which is less consistent with observations, likely due to lack of meteorological in situ data. However, simulations over the long term (1929–2012) reveal that models which include a separate term for shortwave radiation agree best with the observed ice volume changes, indicating that their melt relationships are robust in time and thus suitable for long-term modelling, in contrast to more empirical approaches that are oversensitive to temperature fluctuations. article_processing_charge: No article_type: original author: - first_name: Jeannette full_name: Gabbi, Jeannette last_name: Gabbi - first_name: Marco full_name: Carenzo, Marco last_name: Carenzo - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti - first_name: Andreas full_name: Bauder, Andreas last_name: Bauder - first_name: Martin full_name: Funk, Martin last_name: Funk citation: ama: Gabbi J, Carenzo M, Pellicciotti F, Bauder A, Funk M. A comparison of empirical and physically based glacier surface melt models for long-term simulations of glacier response. Journal of Glaciology. 2014;60(224):1140-1154. doi:10.3189/2014jog14j011 apa: Gabbi, J., Carenzo, M., Pellicciotti, F., Bauder, A., & Funk, M. (2014). A comparison of empirical and physically based glacier surface melt models for long-term simulations of glacier response. Journal of Glaciology. International Glaciological Society. https://doi.org/10.3189/2014jog14j011 chicago: Gabbi, Jeannette, Marco Carenzo, Francesca Pellicciotti, Andreas Bauder, and Martin Funk. “A Comparison of Empirical and Physically Based Glacier Surface Melt Models for Long-Term Simulations of Glacier Response.” Journal of Glaciology. International Glaciological Society, 2014. https://doi.org/10.3189/2014jog14j011. ieee: J. Gabbi, M. Carenzo, F. Pellicciotti, A. Bauder, and M. Funk, “A comparison of empirical and physically based glacier surface melt models for long-term simulations of glacier response,” Journal of Glaciology, vol. 60, no. 224. International Glaciological Society, pp. 1140–1154, 2014. ista: Gabbi J, Carenzo M, Pellicciotti F, Bauder A, Funk M. 2014. A comparison of empirical and physically based glacier surface melt models for long-term simulations of glacier response. Journal of Glaciology. 60(224), 1140–1154. mla: Gabbi, Jeannette, et al. “A Comparison of Empirical and Physically Based Glacier Surface Melt Models for Long-Term Simulations of Glacier Response.” Journal of Glaciology, vol. 60, no. 224, International Glaciological Society, 2014, pp. 1140–54, doi:10.3189/2014jog14j011. short: J. Gabbi, M. Carenzo, F. Pellicciotti, A. Bauder, M. Funk, Journal of Glaciology 60 (2014) 1140–1154. date_created: 2023-02-20T08:16:34Z date_published: 2014-08-01T00:00:00Z date_updated: 2023-02-24T08:56:35Z day: '01' doi: 10.3189/2014jog14j011 extern: '1' intvolume: ' 60' issue: '224' keyword: - Earth-Surface Processes language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.3189/2014JoG14J011 month: '08' oa: 1 oa_version: Published Version page: 1140-1154 publication: Journal of Glaciology publication_identifier: eissn: - 1727-5652 issn: - 0022-1430 publication_status: published publisher: International Glaciological Society quality_controlled: '1' scopus_import: '1' status: public title: A comparison of empirical and physically based glacier surface melt models for long-term simulations of glacier response type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 60 year: '2014' ... --- _id: '12634' abstract: - lang: eng text: 'Glaciers in the Andes of Chile seem to be shrinking and possibly loosing mass, but the number and types of studies conducted, constrained mainly by data availability, are not sufficient to provide a synopsis of glacier changes for the past or future or explain in an explicit way causes of the observed changes. In this paper, we provide a systematic review of changes in glaciers for the entire country, followed by a discussion of the studies that have provided evidence of such changes. We identify a missing type of work in distributed, physically-oriented modelling studies that are needed to bridge the gap between the numerous remote sensing studies and the specific, point scale works focused on process understanding. We use an advanced mass balance model applied to one of the best monitored glaciers in the region to investigate four main research issues that should be addressed in modelling studies for a sound assessment of glacier changes: 1) the use of physically-based models of glacier ablation (energy balance models) versus more empirical models (enhanced temperature index approaches); 2) the importance of the correct extrapolation of air temperature forcing on glaciers and in high elevation areas and the large uncertainty in model outputs associated with it; 3) the role played by snow gravitational redistribution; and 4) the uncertainty associated with future climate scenarios. We quantify differences in model outputs associated with each of these choices, and conclude with suggestions for future work directions.' article_processing_charge: No article_type: review author: - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti - first_name: S. full_name: Ragettli, S. last_name: Ragettli - first_name: M. full_name: Carenzo, M. last_name: Carenzo - first_name: J. full_name: McPhee, J. last_name: McPhee citation: ama: Pellicciotti F, Ragettli S, Carenzo M, McPhee J. Changes of glaciers in the Andes of Chile and priorities for future work. Science of The Total Environment. 2014;493:1197-1210. doi:10.1016/j.scitotenv.2013.10.055 apa: Pellicciotti, F., Ragettli, S., Carenzo, M., & McPhee, J. (2014). Changes of glaciers in the Andes of Chile and priorities for future work. Science of The Total Environment. Elsevier. https://doi.org/10.1016/j.scitotenv.2013.10.055 chicago: Pellicciotti, Francesca, S. Ragettli, M. Carenzo, and J. McPhee. “Changes of Glaciers in the Andes of Chile and Priorities for Future Work.” Science of The Total Environment. Elsevier, 2014. https://doi.org/10.1016/j.scitotenv.2013.10.055. ieee: F. Pellicciotti, S. Ragettli, M. Carenzo, and J. McPhee, “Changes of glaciers in the Andes of Chile and priorities for future work,” Science of The Total Environment, vol. 493. Elsevier, pp. 1197–1210, 2014. ista: Pellicciotti F, Ragettli S, Carenzo M, McPhee J. 2014. Changes of glaciers in the Andes of Chile and priorities for future work. Science of The Total Environment. 493, 1197–1210. mla: Pellicciotti, Francesca, et al. “Changes of Glaciers in the Andes of Chile and Priorities for Future Work.” Science of The Total Environment, vol. 493, Elsevier, 2014, pp. 1197–210, doi:10.1016/j.scitotenv.2013.10.055. short: F. Pellicciotti, S. Ragettli, M. Carenzo, J. McPhee, Science of The Total Environment 493 (2014) 1197–1210. date_created: 2023-02-20T08:16:46Z date_published: 2014-09-15T00:00:00Z date_updated: 2023-02-24T08:37:57Z day: '15' doi: 10.1016/j.scitotenv.2013.10.055 extern: '1' intvolume: ' 493' keyword: - Pollution - Waste Management and Disposal - Environmental Chemistry - Environmental Engineering language: - iso: eng month: '09' oa_version: None page: 1197-1210 publication: Science of The Total Environment publication_identifier: issn: - 0048-9697 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: Changes of glaciers in the Andes of Chile and priorities for future work type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 493 year: '2014' ... --- _id: '13399' abstract: - lang: eng text: Nature has long inspired scientists with its seemingly unlimited ability to harness solar energy and to utilize it to drive various physiological processes. With the help of man-made molecular photoswitches, we now have the potential to outperform natural systems in many ways, with the ultimate goal of fabricating multifunctional materials that operate at different light wavelengths. An important challenge in developing light-controlled artificial molecular machines lies in attaining a detailed understanding of the photoisomerization-coupled conformational changes that occur in macromolecules and molecular assemblies. In this issue of ACS Nano, Bléger, Rabe, and co-workers use force microscopy to provide interesting insights into the behavior of individual photoresponsive molecules and to identify contraction, extension, and crawling events accompanying light-induced isomerization. article_processing_charge: No article_type: original author: - first_name: Pintu K. full_name: Kundu, Pintu K. last_name: Kundu - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Kundu PK, Klajn R. Watching single molecules move in response to light. ACS Nano. 2014;8(12):11913-11916. doi:10.1021/nn506656r apa: Kundu, P. K., & Klajn, R. (2014). Watching single molecules move in response to light. ACS Nano. American Chemical Society. https://doi.org/10.1021/nn506656r chicago: Kundu, Pintu K., and Rafal Klajn. “Watching Single Molecules Move in Response to Light.” ACS Nano. American Chemical Society, 2014. https://doi.org/10.1021/nn506656r. ieee: P. K. Kundu and R. Klajn, “Watching single molecules move in response to light,” ACS Nano, vol. 8, no. 12. American Chemical Society, pp. 11913–11916, 2014. ista: Kundu PK, Klajn R. 2014. Watching single molecules move in response to light. ACS Nano. 8(12), 11913–11916. mla: Kundu, Pintu K., and Rafal Klajn. “Watching Single Molecules Move in Response to Light.” ACS Nano, vol. 8, no. 12, American Chemical Society, 2014, pp. 11913–16, doi:10.1021/nn506656r. short: P.K. Kundu, R. Klajn, ACS Nano 8 (2014) 11913–11916. date_created: 2023-08-01T09:45:42Z date_published: 2014-12-23T00:00:00Z date_updated: 2023-08-08T07:18:58Z day: '23' doi: 10.1021/nn506656r extern: '1' external_id: pmid: - '25474733' intvolume: ' 8' issue: '12' keyword: - General Physics and Astronomy - General Engineering - General Materials Science language: - iso: eng month: '12' oa_version: None page: 11913-11916 pmid: 1 publication: ACS Nano publication_identifier: eissn: - 1936-086X issn: - 1936-0851 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Watching single molecules move in response to light type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 8 year: '2014' ... --- _id: '13402' abstract: - lang: eng text: Nanoporous frameworks are polymeric materials built from rigid molecules, which give rise to their nanoporous structures with applications in gas sorption and storage, catalysis and others. Conceptually new applications could emerge, should these beneficial properties be manipulated by external stimuli in a reversible manner. One approach to render nanoporous frameworks responsive to external signals would be to immobilize molecular switches within their nanopores. Although the majority of molecular switches require conformational freedom to isomerize, and switching in the solid state is prohibited, the nanopores may provide enough room for the switches to efficiently isomerize. Here we describe two families of nanoporous materials incorporating the spiropyran molecular switch. These materials exhibit a variety of interesting properties, including reversible photochromism and acidochromism under solvent-free conditions, light-controlled capture and release of metal ions, as well reversible chromism induced by solvation/desolvation. article_number: '3588' article_processing_charge: No article_type: original author: - first_name: Pintu K. full_name: Kundu, Pintu K. last_name: Kundu - first_name: Gregory L. full_name: Olsen, Gregory L. last_name: Olsen - first_name: Vladimir full_name: Kiss, Vladimir last_name: Kiss - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Kundu PK, Olsen GL, Kiss V, Klajn R. Nanoporous frameworks exhibiting multiple stimuli responsiveness. Nature Communications. 2014;5. doi:10.1038/ncomms4588 apa: Kundu, P. K., Olsen, G. L., Kiss, V., & Klajn, R. (2014). Nanoporous frameworks exhibiting multiple stimuli responsiveness. Nature Communications. Springer Nature. https://doi.org/10.1038/ncomms4588 chicago: Kundu, Pintu K., Gregory L. Olsen, Vladimir Kiss, and Rafal Klajn. “Nanoporous Frameworks Exhibiting Multiple Stimuli Responsiveness.” Nature Communications. Springer Nature, 2014. https://doi.org/10.1038/ncomms4588. ieee: P. K. Kundu, G. L. Olsen, V. Kiss, and R. Klajn, “Nanoporous frameworks exhibiting multiple stimuli responsiveness,” Nature Communications, vol. 5. Springer Nature, 2014. ista: Kundu PK, Olsen GL, Kiss V, Klajn R. 2014. Nanoporous frameworks exhibiting multiple stimuli responsiveness. Nature Communications. 5, 3588. mla: Kundu, Pintu K., et al. “Nanoporous Frameworks Exhibiting Multiple Stimuli Responsiveness.” Nature Communications, vol. 5, 3588, Springer Nature, 2014, doi:10.1038/ncomms4588. short: P.K. Kundu, G.L. Olsen, V. Kiss, R. Klajn, Nature Communications 5 (2014). date_created: 2023-08-01T09:46:27Z date_published: 2014-04-07T00:00:00Z date_updated: 2023-08-08T07:28:10Z day: '07' doi: 10.1038/ncomms4588 extern: '1' external_id: pmid: - '24709950' intvolume: ' 5' keyword: - General Physics and Astronomy - General Biochemistry - Genetics and Molecular Biology - General Chemistry - Multidisciplinary language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1038/ncomms4588 month: '04' oa: 1 oa_version: Published Version pmid: 1 publication: Nature Communications publication_identifier: eissn: - 2041-1723 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Nanoporous frameworks exhibiting multiple stimuli responsiveness type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 5 year: '2014' ... --- _id: '13400' abstract: - lang: eng text: Organizing inorganic nanocrystals into complex architectures is challenging and typically relies on preexisting templates, such as properly folded DNA or polypeptide chains. We found that under carefully controlled conditions, cubic nanocrystals of magnetite self-assemble into arrays of helical superstructures in a template-free manner with >99% yield. Computer simulations revealed that the formation of helices is determined by the interplay of van der Waals and magnetic dipole-dipole interactions, Zeeman coupling, and entropic forces and can be attributed to spontaneous formation of chiral nanocube clusters. Neighboring helices within their densely packed ensembles tended to adopt the same handedness in order to maximize packing, thus revealing a novel mechanism of symmetry breaking and chirality amplification. article_processing_charge: No article_type: original author: - first_name: Gurvinder full_name: Singh, Gurvinder last_name: Singh - first_name: Henry full_name: Chan, Henry last_name: Chan - first_name: Artem full_name: Baskin, Artem last_name: Baskin - first_name: Elijah full_name: Gelman, Elijah last_name: Gelman - first_name: Nikita full_name: Repnin, Nikita last_name: Repnin - first_name: Petr full_name: Král, Petr last_name: Král - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Singh G, Chan H, Baskin A, et al. Self-assembly of magnetite nanocubes into helical superstructures. Science. 2014;345(6201):1149-1153. doi:10.1126/science.1254132 apa: Singh, G., Chan, H., Baskin, A., Gelman, E., Repnin, N., Král, P., & Klajn, R. (2014). Self-assembly of magnetite nanocubes into helical superstructures. Science. American Association for the Advancement of Science. https://doi.org/10.1126/science.1254132 chicago: Singh, Gurvinder, Henry Chan, Artem Baskin, Elijah Gelman, Nikita Repnin, Petr Král, and Rafal Klajn. “Self-Assembly of Magnetite Nanocubes into Helical Superstructures.” Science. American Association for the Advancement of Science, 2014. https://doi.org/10.1126/science.1254132. ieee: G. Singh et al., “Self-assembly of magnetite nanocubes into helical superstructures,” Science, vol. 345, no. 6201. American Association for the Advancement of Science, pp. 1149–1153, 2014. ista: Singh G, Chan H, Baskin A, Gelman E, Repnin N, Král P, Klajn R. 2014. Self-assembly of magnetite nanocubes into helical superstructures. Science. 345(6201), 1149–1153. mla: Singh, Gurvinder, et al. “Self-Assembly of Magnetite Nanocubes into Helical Superstructures.” Science, vol. 345, no. 6201, American Association for the Advancement of Science, 2014, pp. 1149–53, doi:10.1126/science.1254132. short: G. Singh, H. Chan, A. Baskin, E. Gelman, N. Repnin, P. Král, R. Klajn, Science 345 (2014) 1149–1153. date_created: 2023-08-01T09:45:56Z date_published: 2014-07-24T00:00:00Z date_updated: 2023-08-08T07:23:05Z day: '24' doi: 10.1126/science.1254132 extern: '1' external_id: pmid: - '25061133' intvolume: ' 345' issue: '6201' keyword: - Multidisciplinary language: - iso: eng month: '07' oa_version: None page: 1149-1153 pmid: 1 publication: Science publication_identifier: eissn: - 1095-9203 issn: - 0036-8075 publication_status: published publisher: American Association for the Advancement of Science quality_controlled: '1' scopus_import: '1' status: public title: Self-assembly of magnetite nanocubes into helical superstructures type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 345 year: '2014' ... --- _id: '13404' abstract: - lang: eng text: In the past few years, spiropyran has emerged as the molecule-of-choice for the construction of novel dynamic materials. This unique molecular switch undergoes structural isomerisation in response to a variety of orthogonal stimuli, e.g. light, temperature, metal ions, redox potential, and mechanical stress. Incorporation of this switch onto macromolecular supports or inorganic scaffolds allows for the creation of robust dynamic materials. This review discusses the synthesis, switching conditions, and use of dynamic materials in which spiropyran has been attached to the surfaces of polymers, biomacromolecules, inorganic nanoparticles, as well as solid surfaces. The resulting materials show fascinating properties whereby the state of the switch intimately affects a multitude of useful properties of the support. The utility of the spiropyran switch will undoubtedly endow these materials with far-reaching applications in the near future. article_processing_charge: No article_type: original author: - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Klajn R. Spiropyran-based dynamic materials. Chemical Society Reviews. 2014;43(1):148-184. doi:10.1039/c3cs60181a apa: Klajn, R. (2014). Spiropyran-based dynamic materials. Chemical Society Reviews. Royal Society of Chemistry. https://doi.org/10.1039/c3cs60181a chicago: Klajn, Rafal. “Spiropyran-Based Dynamic Materials.” Chemical Society Reviews. Royal Society of Chemistry, 2014. https://doi.org/10.1039/c3cs60181a. ieee: R. Klajn, “Spiropyran-based dynamic materials,” Chemical Society Reviews, vol. 43, no. 1. Royal Society of Chemistry, pp. 148–184, 2014. ista: Klajn R. 2014. Spiropyran-based dynamic materials. Chemical Society Reviews. 43(1), 148–184. mla: Klajn, Rafal. “Spiropyran-Based Dynamic Materials.” Chemical Society Reviews, vol. 43, no. 1, Royal Society of Chemistry, 2014, pp. 148–84, doi:10.1039/c3cs60181a. short: R. Klajn, Chemical Society Reviews 43 (2014) 148–184. date_created: 2023-08-01T09:47:03Z date_published: 2014-01-27T00:00:00Z date_updated: 2023-08-08T07:41:38Z day: '27' doi: 10.1039/c3cs60181a extern: '1' external_id: pmid: - '23979515' intvolume: ' 43' issue: '1' keyword: - General Chemistry language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1039/C3CS60181A month: '01' oa: 1 oa_version: Published Version page: 148-184 pmid: 1 publication: Chemical Society Reviews publication_identifier: eissn: - 1460-4744 issn: - 0306-0012 publication_status: published publisher: Royal Society of Chemistry quality_controlled: '1' scopus_import: '1' status: public title: Spiropyran-based dynamic materials type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 43 year: '2014' ... --- _id: '13401' abstract: - lang: eng text: A compound combining the features of a molecular rotor and a photoswitch was synthesized and was shown to exist as three diastereomers, which interconvert via a reversible cyclic reaction scheme. Each of the three diastereomers was isolated, and by following the equilibration kinetics, activation barriers for all reactions were calculated. The results indicate that the properties of molecular switches depend heavily on their immediate chemical environment. The conclusions are important in the context of designing new switchable molecules and materials. article_processing_charge: No article_type: original author: - first_name: Pintu K. full_name: Kundu, Pintu K. last_name: Kundu - first_name: Avishai full_name: Lerner, Avishai last_name: Lerner - first_name: Kristina full_name: Kučanda, Kristina last_name: Kučanda - first_name: Gregory full_name: Leitus, Gregory last_name: Leitus - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Kundu PK, Lerner A, Kučanda K, Leitus G, Klajn R. Cyclic kinetics during thermal equilibration of an axially chiral bis-spiropyran. Journal of the American Chemical Society. 2014;136(32):11276-11279. doi:10.1021/ja505948q apa: Kundu, P. K., Lerner, A., Kučanda, K., Leitus, G., & Klajn, R. (2014). Cyclic kinetics during thermal equilibration of an axially chiral bis-spiropyran. Journal of the American Chemical Society. American Chemical Society. https://doi.org/10.1021/ja505948q chicago: Kundu, Pintu K., Avishai Lerner, Kristina Kučanda, Gregory Leitus, and Rafal Klajn. “Cyclic Kinetics during Thermal Equilibration of an Axially Chiral Bis-Spiropyran.” Journal of the American Chemical Society. American Chemical Society, 2014. https://doi.org/10.1021/ja505948q. ieee: P. K. Kundu, A. Lerner, K. Kučanda, G. Leitus, and R. Klajn, “Cyclic kinetics during thermal equilibration of an axially chiral bis-spiropyran,” Journal of the American Chemical Society, vol. 136, no. 32. American Chemical Society, pp. 11276–11279, 2014. ista: Kundu PK, Lerner A, Kučanda K, Leitus G, Klajn R. 2014. Cyclic kinetics during thermal equilibration of an axially chiral bis-spiropyran. Journal of the American Chemical Society. 136(32), 11276–11279. mla: Kundu, Pintu K., et al. “Cyclic Kinetics during Thermal Equilibration of an Axially Chiral Bis-Spiropyran.” Journal of the American Chemical Society, vol. 136, no. 32, American Chemical Society, 2014, pp. 11276–79, doi:10.1021/ja505948q. short: P.K. Kundu, A. Lerner, K. Kučanda, G. Leitus, R. Klajn, Journal of the American Chemical Society 136 (2014) 11276–11279. date_created: 2023-08-01T09:46:12Z date_published: 2014-08-13T00:00:00Z date_updated: 2023-08-08T07:25:37Z day: '13' doi: 10.1021/ja505948q extern: '1' external_id: pmid: - '25072292' intvolume: ' 136' issue: '32' keyword: - Colloid and Surface Chemistry - Biochemistry - General Chemistry - Catalysis language: - iso: eng month: '08' oa_version: None page: 11276-11279 pmid: 1 publication: Journal of the American Chemical Society publication_identifier: eissn: - 1520-5126 issn: - 0002-7863 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Cyclic kinetics during thermal equilibration of an axially chiral bis-spiropyran type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 136 year: '2014' ...