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Guiding Self-assembly of Active Colloids by Temporal Modulation of Activity by Zhang, Bo; Snezhko, Alexey; Sokolov, Andrey is a scholarly article available to read on EtoBox.

What is Guiding Self-assembly of Active Colloids by Temporal Modulation of Activity about?

Self-organization phenomena in ensembles of self-propelled particles open pathways to the synthesis of new dynamic states not accessible by traditional equilibrium processes. The challenge is to develop a set of principles that facilitate the control and manipulation of emergent active states. Here, we report that dielectric rolling colloids energized by a pulsating electric field self-organize into alternating square lattices with a lattice constant controlled by the parameters of the field. We combine experiments and simulations to examine spatiotemporal properties of the emergent collective patterns, and investigate the underlying dynamics of the self-organization.We reveal the resistance of the dynamic lattices to compression/expansion stresses leading to a hysteretic behavior of the lattice constant. The general mechanism of pattern synthesis and control in active ensembles via temporal modulation of activity can be applied to other active colloidal systems.

Author

Zhang, Bo; Snezhko, Alexey; Sokolov, Andrey

Published

2022

Language

EN