Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam

H. Moyses, J.A. Palacci, S. Sacanna, D.G. Grier, Soft Matter 12 (2016) 6357–6364.


Journal Article | Published | English

Scopus indexed
Author
Moyses, Henrique; Palacci, Jérémie AIST Austria; Sacanna, Stefano; Grier, David G.
Abstract
We describe colloidal Janus particles with metallic and dielectric faces that swim vigorously when illuminated by defocused optical tweezers without consuming any chemical fuel. Rather than wandering randomly, these optically-activated colloidal swimmers circulate back and forth through the beam of light, tracing out sinuous rosette patterns. We propose a model for this mode of light-activated transport that accounts for the observed behavior through a combination of self-thermophoresis and optically-induced torque. In the deterministic limit, this model yields trajectories that resemble rosette curves known as hypotrochoids.
Publishing Year
Date Published
2016-08-14
Journal Title
Soft Matter
Volume
12
Issue
30
Page
6357-6364
ISSN
eISSN
IST-REx-ID

Cite this

Moyses H, Palacci JA, Sacanna S, Grier DG. Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam. Soft Matter. 2016;12(30):6357-6364. doi:10.1039/c6sm01163b
Moyses, H., Palacci, J. A., Sacanna, S., & Grier, D. G. (2016). Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam. Soft Matter. Royal Society of Chemistry . https://doi.org/10.1039/c6sm01163b
Moyses, Henrique, Jérémie A Palacci, Stefano Sacanna, and David G. Grier. “Trochoidal Trajectories of Self-Propelled Janus Particles in a Diverging Laser Beam.” Soft Matter. Royal Society of Chemistry , 2016. https://doi.org/10.1039/c6sm01163b.
H. Moyses, J. A. Palacci, S. Sacanna, and D. G. Grier, “Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam,” Soft Matter, vol. 12, no. 30. Royal Society of Chemistry , pp. 6357–6364, 2016.
Moyses H, Palacci JA, Sacanna S, Grier DG. 2016. Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam. Soft Matter. 12(30), 6357–6364.
Moyses, Henrique, et al. “Trochoidal Trajectories of Self-Propelled Janus Particles in a Diverging Laser Beam.” Soft Matter, vol. 12, no. 30, Royal Society of Chemistry , 2016, pp. 6357–64, doi:10.1039/c6sm01163b.
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PMID: 27338294
PubMed | Europe PMC

arXiv 1609.01497

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