Abstract
In this article, we study the phenomenology of a two dimensional dilute suspension of active amphiphilic Janus particles. We analyze how the morphology of the aggregates emerging from their self-assembly depends on the strength and the direction of the active forces. We systematically explore and contrast the phenomenologies resulting from particles with a range of attractive patch coverages. Finally, we illustrate how the geometry of the colloids and the directionality of their interactions can be used to control the physical properties of the assembled active aggregates and suggest possible strategies to exploit self-propulsion as a tunable driving force for self-assembly.
Highlights
Active matter continues to be one of the most exciting new fields in statistical mechanics and materials engineering
We report the self-assembly dynamics of a two dimensional dilute suspension of active amphiphilic patchy particles (APPs) and study the structural and morphological properties of the aggregates that spontaneously form in the presence of active forces
The binding energy determines the clustering behavior of these suspensions, and the shape of the largest possible stable cluster is determined by the geometric constraints imposed by the shape of the attractive patch: a trimer in this small patch case (C = 0.25)
Summary
Active matter continues to be one of the most exciting new fields in statistical mechanics and materials engineering. The clustering behavior of active APPs is highly sensitive to the direction of self-propulsion relative to the attractive patch.
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