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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2021
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2108.13667 |
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| _version_ | 1866908353233420288 |
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| author | Obara, Kazuma Kageyama, Yoshiyuki Takeda, Sadamu |
| author_facet | Obara, Kazuma Kageyama, Yoshiyuki Takeda, Sadamu |
| contents | 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 two-dimensional water tank. Although the reciprocal flip motion of the crystals was 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 we explore the directionality generation mechanism and physical features of the swimming behavior 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2108_13667 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Self-propulsion of a light-powered microscopic crystalline flapper in water Obara, Kazuma Kageyama, Yoshiyuki Takeda, Sadamu Soft Condensed Matter Mesoscale and Nanoscale Physics Adaptation and Self-Organizing Systems Pattern Formation and Solitons Chemical Physics 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 two-dimensional water tank. Although the reciprocal flip motion of the crystals was 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 we explore the directionality generation mechanism and physical features of the swimming behavior 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. |
| title | Self-propulsion of a light-powered microscopic crystalline flapper in water |
| topic | Soft Condensed Matter Mesoscale and Nanoscale Physics Adaptation and Self-Organizing Systems Pattern Formation and Solitons Chemical Physics |
| url | https://arxiv.org/abs/2108.13667 |