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Cited by 288

The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.

Phototaxis of synthetic microswimmers in optical landscapes

Open access
Lozano, Celia, ten Hagen, Borge, Löwen, Hartmut, Bechinger, Clemens·2016·Nature Communications
DOI 10.1038/ncomms12828
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Abstract

Many microorganisms, with phytoplankton and zooplankton as prominent examples, display phototactic behaviour, that is, the ability to perform directed motion within a light gradient. Here we experimentally demonstrate that sensing of light gradients can also be achieved in a system of synthetic photo-activated microparticles being exposed to an inhomogeneous laser field. We observe a strong orientational response of the particles because of diffusiophoretic torques, which in combination with an intensity-dependent particle motility eventually leads to phototaxis. Since the aligning torques saturate at high gradients, a strongly rectified particle motion is found even in periodic asymmetric intensity landscapes. Our results are in excellent agreement with numerical simulations of a minimal model and should similarly apply to other particle propulsion mechanisms. Because light fields can be easily adjusted in space and time, this also allows to extend our approach to dynamical environments.

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Metadata

Authors
Lozano, C., ten Hagen, B., Löwen, H., & Bechinger, C.
Venue
Nature Communications
Publisher
Springer Science and Business Media LLC
Published
2016-09-30
Volume
7
Issue
1
Pages
12828-12828
ISSN
2041-1723 (ISSN-L)
DOI
10.1038/ncomms12828
OpenAlex
W2524043285
Cited by
288
References
39
FWCI
18.91
Type
journal article
Language
en
Open access
gold

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