Playing with active matter

Agnese Callegari; Angelo Barona Balda; Aykut Argun; Giovanni Volpe

doi:10.1117/12.2677289

5 October 2023 Playing with active matter

Agnese Callegari, Angelo Barona Balda, Aykut Argun, Giovanni Volpe

Proceedings Volume PC12649, Optical Trapping and Optical Micromanipulation XX; PC1264909 (2023) https://doi.org/10.1117/12.2677289
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

Active matter bridges the fundamental physics of nonequilibrium thermodynamics with applications spanning from biophysics to robotics. Active particles can harness energy to generate complex motions and emerging behaviors. Most active-matter experiments are performed with microscopic particles and require advanced microfabrication and microscopy techniques. Here, we propose some macroscopic experiments with active matter employing commercially available toy robots, i.e., the Hexbugs. We show that Hexbugs perform active and chiral active motion, can set passive objects into motion and rotation. Finally, we show how to sort Hexbug by motility and chirality, and macroscopic demonstration of the Casimir-like activity-induced attraction between planar objects.

Conference Presentation

Citation Download Citation

Agnese Callegari, Angelo Barona Balda, Aykut Argun, and Giovanni Volpe "Playing with active matter", Proc. SPIE PC12649, Optical Trapping and Optical Micromanipulation XX, PC1264909 (5 October 2023); https://doi.org/10.1117/12.2677289

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