Dynamic self-assembly of microscale rotors and swimmers.
Ward, Michael D
Shelley, Michael J
Royal Society of Chemistry (RSC)
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Davies Wykes, M., Palacci, J., Adachi, T., Ristroph, L., Zhong, X., Ward, M. D., Zhang, J., & et al. (2016). Dynamic self-assembly of microscale rotors and swimmers.. Soft Matter, 12 (20), 4584-4589. https://doi.org/10.1039/c5sm03127c
Biological systems often involve the self-assembly of basic components into complex and functioning structures. Artificial systems that mimic such processes can provide a well-controlled setting to explore the principles involved and also synthesize useful micromachines. Our experiments show that immotile, but active, components self-assemble into two types of structure that exhibit the fundamental forms of motility: translation and rotation. Specifically, micron-scale metallic rods are designed to induce extensile surface flows in the presence of a chemical fuel; these rods interact with each other and pair up to form either a swimmer or a rotor. Such pairs can transition reversibly between these two configurations, leading to kinetics reminiscent of bacterial run-and-tumble motion.
Movement, Kinetics, Rotation
External DOI: https://doi.org/10.1039/c5sm03127c
This record's URL: https://www.repository.cam.ac.uk/handle/1810/286794