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Pattern formation and collective effects in populations of magnetic microswimmers

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Vach,  Peter
Damien Faivre, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Fratzl,  Peter
Peter Fratzl, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Faivre,  Damien
Damien Faivre, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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2397884.pdf
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Citation

Vach, P., Walker, D., Fischer, P., Fratzl, P., & Faivre, D. (2017). Pattern formation and collective effects in populations of magnetic microswimmers. Journal of Physics D: Applied Physics, 50(11): 11LT03. doi:10.1088/1361-6463/aa5d36.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-8062-A
Abstract
Self-propelled particles are one prototype of synthetic active matter used to understand complex biological processes such as the coordination of movement in bacterial colonies or schools of fishes. Collective patterns such as clusters were observed for such systems, reproducing features of biological organization. However, one limitation of this model is that the synthetic assemblies are made of identical individuals. Here we introduce an active system based on magnetic particles at colloidal scales. We use identical but also randomly-shaped magnetic micropropellers and show that they exhibit dynamic and reversible pattern formation.