Mass-based separation of active Brownian particles in an asymmetric channel

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1. Verfasser: Khatri, Narender
Format: Preprint
Veröffentlicht: 2023
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author Khatri, Narender
author_facet Khatri, Narender
contents Inertial effects should be considered for micro- and nano-swimmers moving in a low-density medium confined by irregular structures that create entropic barriers, where viscous effects are no longer paramount. Here, we present a separation mechanism of self-propelled particles in a two-dimensional asymmetric channel, which leads to the drift of particles of different masses in opposite directions. In particular, this mechanism is based on the combined action of the spatial asymmetry of the channel structure, the temporal asymmetry inherent in particles dynamics, and an external static force. This work is relevant for potential applications that can be found in the development of lab-on-a-chip devices and artificial channels for separating particles of different masses.
format Preprint
id arxiv_https___arxiv_org_abs_2310_16204
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Mass-based separation of active Brownian particles in an asymmetric channel
Khatri, Narender
Soft Condensed Matter
Statistical Mechanics
Computational Physics
Inertial effects should be considered for micro- and nano-swimmers moving in a low-density medium confined by irregular structures that create entropic barriers, where viscous effects are no longer paramount. Here, we present a separation mechanism of self-propelled particles in a two-dimensional asymmetric channel, which leads to the drift of particles of different masses in opposite directions. In particular, this mechanism is based on the combined action of the spatial asymmetry of the channel structure, the temporal asymmetry inherent in particles dynamics, and an external static force. This work is relevant for potential applications that can be found in the development of lab-on-a-chip devices and artificial channels for separating particles of different masses.
title Mass-based separation of active Brownian particles in an asymmetric channel
topic Soft Condensed Matter
Statistical Mechanics
Computational Physics
url https://arxiv.org/abs/2310.16204