Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Peer-reviewed Journal Articles, etc >
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)
|
|