Self-oscillating gel as novel biomimetic materials

Ryo Yoshida, Takamasa Sakai, Yusuke Hara, Shingo Maeda, Shuji Hashimoto, Daisuke Suzuki, Yoko Murase

Research output: Contribution to journalReview articlepeer-review

61 Citations (Scopus)


Stimuli-responsive polymers and their application to biomaterials have been widely studied. On the other hand, as a novel biomimetic polymer, we have been studying the polymer with an autonomous self-oscillating function by utilizing oscillating chemical reactions. So far, we succeeded in developing a novel self-oscillating polymer and gels by utilizing the oscillating reaction, called the Belousov-Zhabotinsky (BZ) reaction, which is recognized as a chemical model for understanding several autonomous phenomena in biological systems. The self-oscillating polymer is composed of poly(N-isopropylacrylamide) (PNIPAAm) network in which the catalyst for the BZ reaction is covalently immobilized. Under the coexistence of the reactants, the polymer undergoes spontaneous cyclic soluble-insoluble changes or swelling-deswelling changes (in the case of gel) without any on-off switching of external stimuli. In this paper, our recent studies on the self-oscillating polymer gels and the design of functional material systems using the polymer are summarized.

Original languageEnglish
Pages (from-to)186-193
Number of pages8
JournalJournal of Controlled Release
Issue number3
Publication statusPublished - 2009 Dec 16
Externally publishedYes


  • Biomimetics
  • Polymer gels
  • Self-oscillation
  • Smart materials

ASJC Scopus subject areas

  • Pharmaceutical Science


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