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The role of disorder in the motion of chiral active particles in the presence of obstacles

Van Roon, Danne M; Volpe, Giorgio; Telo da Gama, Margarida M; Araújo, Nuno AM; (2022) The role of disorder in the motion of chiral active particles in the presence of obstacles. Soft Matter 10.1039/d2sm00694d. (In press). Green open access

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Abstract

The presence of obstacles is intuitively expected to hinder the diffusive transport of active particles. However, for chiral active particles, a low density of obstacles near a surface can enhance their diffusive behavior. Here, we study numerically the role that disorder plays in determining the transport dynamics of chiral active particles on surfaces with obstacles. We consider different densities of regularly spaced obstacles and distinct types of disorder: noise in the dynamics of the particle, quenched noise in the positions of the obstacles as well as obstacle size polydispersity. We show that, depending on the type and strength of the disorder, the presence of obstacles can either enhance or hinder transport, and discuss implications for the control of active transport in disordered media.

Type: Article
Title: The role of disorder in the motion of chiral active particles in the presence of obstacles
Open access status: An open access version is available from UCL Discovery
DOI: 10.1039/d2sm00694d
Publisher version: https://doi.org/10.1039/d2sm00694d
Language: English
Additional information: This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence (http://creativecommons.org/licenses/by-nc/3.0/).
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL
URI: https://discovery.ucl.ac.uk/id/eprint/10154921
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