Issue 47, 2022

Collision-induced torque mediates the transition of chiral dynamic patterns formed by active particles

Abstract

Controlling the patterns formed by self-propelled particles through dynamic self-organization is a challenging task. Although varieties of patterns associated with chiral self-propelled particles have been reported, essential factors that determine the morphology of the patterns have remained unclear. Here, we explore theoretically how torque formed upon collision of the particles affects the dynamic self-organization of the particles and determine the patterns. Based on a particle-based model with collision-induced torque and torque associated with self-propulsion, we find that introducing collision-induced torque turns the homogeneous bi-directionally aligned particles into rotating mono-polar flocks, which helps resolve a discrepancy in the earlier observations in microfilament gliding assays.

Graphical abstract: Collision-induced torque mediates the transition of chiral dynamic patterns formed by active particles

Supplementary files

Article information

Article type
Communication
Submitted
23 Aug 2022
Accepted
24 Oct 2022
First published
26 Oct 2022
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2022,24, 28782-28787

Collision-induced torque mediates the transition of chiral dynamic patterns formed by active particles

T. Hiraiwa, R. Akiyama, D. Inoue, A. Md. R. Kabir and A. Kakugo, Phys. Chem. Chem. Phys., 2022, 24, 28782 DOI: 10.1039/D2CP03879J

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