Peristaltic motion of tubular gel driven by acid-autocatalytic reaction

Takashi Mikanohara, Shingo Maeda, Yusuke Hara, Shuji Hashimoto

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
  • pH-responsive gel
  • peristaltic motion
  • polymerization

ASJC Scopus subject areas

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


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