Volume 109, Number 1, January 2015
|Number of page(s)||6|
|Published online||16 January 2015|
Diffusion of chiral Janus particles in a sinusoidal channel
1 Institut für Physik, Universität Augsburg - D-86135 Augsburg, Germany
2 Department of Chemistry, Presidency University - Kolkata, 700073, India
3 Center for Phononics and Thermal Energy Science, School of Physics Sciences and Engineering, Tongji University Shanghai 200092, PRC
4 Dipartimento di Fisica, Università di Camerino - I-62032 Camerino, Italy
Received: 13 August 2014
Accepted: 16 December 2014
We investigated the transport diffusivity of artificial microswimmers, a.k.a. Janus particles, in the absence of external biases. We considered the case of chiral Janus particles moving either in the bulk or in sinusoidal channels with reflecting walls. Their self-diffusion constants turned out to depend on both the strength and the chirality of the self-propulsion mechanism. More importantly, in a periodic channel self-diffusion can be controlled by tailoring the compartment geometry.
PACS: 05.40.Jc – Brownian motion / 82.70.Dd – Colloids / 87.15.hj – Transport dynamics
© EPLA, 2015
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