Design of Self-Oscillating Gel Actuators for Aiming at Chemical Robot

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  • MAEDA Shingo
    Waseda Research Institute for Science and Engineering, Waseda University
  • HARA Yusuke
    Consolidated Research Institute for Advanced Science and Medical Care, Waseda University
  • YOSHIDA Ryo
    Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo PRESTO, Japan Science and Technology Agency
  • HASHIMOTO Shuji
    Waseda Research Institute for Science and Engineering, Waseda University Consolidated Research Institute for Advanced Science and Medical Care, Waseda University Department of Applied Physics, Waseda University

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Other Title
  • 化学ロボットの実現を目指した自励振動ゲルアクチュエーターの創製
  • カガク ロボット ノ ジツゲン オ メザシタ ジレイ シンドウ ゲル アクチュエーター ノ ソウセイ

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Abstract

Many kinds of stimuli-responsive polymer and gels have been developed and applied to biomimetic actuators and artificial muscles. In particular, electroactive polymers that change shape when stimulated electrically are promising. In all cases, however, the mechanical motion is driven by external stimuli, for example, reversing the direction of electric field. On the other hand, many living organisms can generate an autonomous motion without external driving stimuli, for example the self-beating heart muscle. Here we show novel bending-stretching, self-walking and peristaltic motion of polymer gel actuators without switching of external stimuli. The self-oscillating motion is produced by dissipating chemical energy of an oscillating reaction, i.e., the Belouzov-Zhabotinsky (BZ) reaction occuring inside the gel. Although the gel is a synthetic polymer, it shows autonomous motion as if it is alive.<br>

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 65 (10), 634-640, 2008

    The Society of Polymer Science, Japan

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