Peristaltic motion of tubular gel driven by acid-autocatalytic reaction

Takashi Mikanohara*, Shingo Maeda, Yusuke Hara, Shuji Hashimoto

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)


    A novel gel actuator exhibits a peristaltic motion is designed. We proposed a new approach of coupling an acid-autocatalytic reaction and a pH-responsive gel in order to cause contraction waves. The poly(AAm-co-AAc) microphase-separated tubular gel was synthesized, which can be inflowed reaction solution to its hollow. We focused on its kinetics and evaluated the characteristics of the microphase-separated gels. And we also demonstrated that the propagation of the contraction region occurs in the tubular gel. Our final goal is to develop a biomimetic chemical robot, which realizes a peristaltic locomotion by forming contraction waves like a snail.

    Original languageEnglish
    Pages (from-to)457-465
    Number of pages9
    JournalAdvanced Robotics
    Issue number7
    Publication statusPublished - 2014 Apr 3


    • chemical robot
    • gel actuator
    • peristaltic motion
    • pH-responsive gel
    • polymerization

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Human-Computer Interaction
    • Computer Science Applications
    • Hardware and Architecture
    • Software


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