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Maggi, Claudio, Simmchen, Juliane, Saglimbeni, Filippo, Katuri, Jaideep, Dipalo, Michele, De Angelis, Francesco, Sánchez, Samuel, Di Leonardo, Roberto, (2016). Self-assembly of micromachining systems powered by Janus micromotors Small , 12, (4), 446-451

Janus particles can self-assemble around microfabricated gears in reproducible configurations with a high degree of spatial and orientational order. The final configuration maximizes the torque applied on the rotor leading to a unidirectional and steady rotating motion. The interplay between geometry and dynamical behavior leads to the self-assembly of Janus micromotors starting from randomly distributed particles.

Keywords: Active catalytic particles, Microgears, Micromachines, Janus particles, Self-assembly, Self-propulsion