Design of self-oscillating gel actuators for aiming at chemical robot

Shingo Maeda, Yusuke Hara, Ryo Yoshida, Shuji Hashimoto

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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.

Original languageEnglish
Pages (from-to)634-640
Number of pages7
JournalKobunshi Ronbunshu
Issue number10
Publication statusPublished - 2008 Oct 1
Externally publishedYes


  • Belousov-Zhabotinsky reaction
  • Gel actuator
  • Nonequilibrium
  • Nonlinear chemistry
  • Oscillating Reaction
  • Peristaltic motion
  • Phase separation
  • Self-Oscillating gel
  • Self-Walking gel

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics


Dive into the research topics of 'Design of self-oscillating gel actuators for aiming at chemical robot'. Together they form a unique fingerprint.

Cite this