Active polymer gel actuators

Shingo Maeda, Yusuke Hara, Ryo Yoshida, Shuji Hashimoto

    Research output: Contribution to journalArticlepeer-review

    43 Citations (Scopus)

    Abstract

    Many kinds of stimuli-responsive polymer and gels have been developed and applied to biomimetic actuators or artificial muscles. Electroactive polymers that change shape when stimulated electrically seem to be particularly 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 like self-beating of heart muscles. Here we show a novel biomimetic gel actuator that can walk spontaneously with a worm-like motion without switching of external stimuli. The self-oscillating motion is produced by dissipating chemical energy of oscillating reaction. Although the gel is completely composed of synthetic polymer, it shows autonomous motion as if it were alive.

    Original languageEnglish
    Pages (from-to)52-66
    Number of pages15
    JournalInternational Journal of Molecular Sciences
    Volume11
    Issue number1
    DOIs
    Publication statusPublished - 2010 Jan

    Keywords

    • Oscillating reaction
    • Polymer actuator
    • Polymer gel

    ASJC Scopus subject areas

    • Computer Science Applications
    • Molecular Biology
    • Catalysis
    • Inorganic Chemistry
    • Spectroscopy
    • Organic Chemistry
    • Physical and Theoretical Chemistry

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