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Issue 36, 2017
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Surface fouling as a mechanism for chemotaxis in isotropic catalytic swimmers

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Abstract

We present microscopic models for surface fouling of an isotropic spherical catalytic microswimmer at and away from equilibrium and show how a foulant gradient can induce chemotactic behavior. Our simulations establish that the presence of foulant manifests itself in two ways: as a braking effect on propulsive particle motion, and as a drift term which probes the foulant concentration gradient. Our results suggest that, while foulant gradients are unlikely to be directly useful for chemotactically directed particles, they nevertheless exert a non-negligible influence on particle motion under a wide range of conditions.

Graphical abstract: Surface fouling as a mechanism for chemotaxis in isotropic catalytic swimmers

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Publication details

The article was received on 27 Jul 2017, accepted on 05 Sep 2017 and first published on 05 Sep 2017


Article type: Paper
DOI: 10.1039/C7CP05102F
Citation: Phys. Chem. Chem. Phys., 2017,19, 25207-25213
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    Surface fouling as a mechanism for chemotaxis in isotropic catalytic swimmers

    K. E. Whitener, Phys. Chem. Chem. Phys., 2017, 19, 25207
    DOI: 10.1039/C7CP05102F

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