Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam. Moyses, H., Palacci, J., J., Sacanna, S., & Grier, D., G. SOFT MATTER, 12(30):6357-6364, ROYAL SOC CHEMISTRY, 2016. Website abstract bibtex 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.
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title = {Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam},
type = {article},
year = {2016},
identifiers = {[object Object]},
pages = {6357-6364},
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websites = {http://xlink.rsc.org/?DOI=C6SM01163B},
publisher = {ROYAL SOC CHEMISTRY},
city = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND},
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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.},
bibtype = {article},
author = {Moyses, Henrique and Palacci, Jérémie Jeremie and Sacanna, Stefano and Grier, David G},
journal = {SOFT MATTER},
number = {30}
}
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