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Self-Propulsion of a Light-Powered Microscopic Crystalline Flapper in Water
| Title: | Self-Propulsion of a Light-Powered Microscopic Crystalline Flapper in Water |
| Authors: | Obara, Kazuma Browse this author | | Kageyama, Yoshiyuki Browse this author →KAKEN DB | | Takeda, Sadamu Browse this author |
| Keywords: | active matter | | dissipative self-organization | | energy conversion | | light-driven motor | | microrobot | | scallop theorem | | symmetry breaking |
| Issue Date: | 23-Dec-2021 |
| Publisher: | Wiley-Blackwell |
| Journal Title: | Small |
| Volume: | 18 |
| Issue: | 6 |
| Start Page: | 2105302 |
| Publisher DOI: | 10.1002/smll.202105302 |
| Abstract: | A key goal in developing molecular microrobots that mimic real-world animal dynamic behavior is to understand better the self-continuous progressive motion resulting from collective molecular transformation. This study reports, for the first time, the experimental realization of directional swimming of a microcrystal that exhibits self-continuous reciprocating motion in a 2D water tank. Although the reciprocal flip motion of the crystals is like that of a fish wagging its tail fin, many of the crystals swam in the opposite direction to which a fish would swim. Here the directionality generation mechanism and physical features of the swimming behavior is explored by constructing a mathematical model for the crystalline flapper. The results show that a tiny crystal with a less-deformable part in its flip fin exhibits a pull-type stroke swimming, while a crystal with a fin that uniformly deforms exhibits push-type kicking motion. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/83672 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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