Mesoscale Modeling of an Active Colloid's Motion

TL;DR

This paper develops a mesoscale model using Cahn-Hilliard equations to simulate active colloid motion, capturing key behaviors and comparing single and multi-colloid systems.

Contribution

It introduces a novel mesoscale modeling approach for active colloids based on Cahn-Hilliard equations, extending previous work by Decayeaux.

Findings

Model successfully reproduces qualitative behaviors of active colloids.

Comparison shows good agreement with previous single colloid results.

Provides insights into multi-colloid interactions and dynamics.

Abstract

This paper uses Cahn-Hilliard equations as a mesoscale model of the motion of active colloids. The model attempts to capture the driving mechanisms and qualitative behavior of the isotropic colloids originally proposed by J. Decayeaux in 2021. We compare our model against the single colloid behavior presented in that work, as well as against multi-colloid systems.