2022 Fiscal Year Final Research Report
Multi-functional micromodular robot
| Project/Area Number |
21K18703
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 20:Mechanical dynamics, robotics, and related fields
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| Research Institution | Chuo University |
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Principal Investigator |
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| Project Period (FY) |
2021-07-09 – 2023-03-31
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| Keywords | マイクロロボット / ハイドロゲル / 微細操作 / バイオミメティクス / PNIPAAm / 分子認識 |
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| Outline of Final Research Achievements |
We propose micromodular robot based on assembly/ disassembly functions employing a molecular recognition. We have used stimuli responsive hydrogel as soft microactuators and succeeded in realizing hydrogel microrobot actuated by PNIPAAm, thermoresponsive hydrogel. In this study, we integrate cyclodextrin (CD) and azobenzen as a molecular recognition pair. We mixed the CD and azobenzen to PNIPAAm and succeeded in fabricating micropattern having the molecular recognition function. By using this microactuator, hydrogels can be assembled by irradiating UV light and disassembled by irradiating visible light. We succeeded in fabricating microrobot integrating this hydrogel actuator and drive it with irradiating laser to control its temperature. Also, we succeeded in assembly and disassembly of the robot with irradiating UV or visible light. We demonstrated peristaltic motion with assembled robot and showed that the assembled robot can move faster than a single modular robot.
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| Free Research Field |
知能機械
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では，マイクロスケールの合体・分解型ロボットを提案している．マイクロスケールのロボットの大きな課題として，その機能化をどう行うか，というものがある．本提案は，その課題解決を行うためのアプローチであり，さらに複数の機能を切り替え可能な可能性を示しており，マイクロロボットの実用化に向けた大きな役割を担うものであると考えられる．
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