Paper Title:
Self-Oscillating Gel as Smart Materials
  Abstract

We have developed polymer and gels with an autonomous self-oscillating function by utilizing the Belousov-Zhabotinsky (BZ) reaction. Under the coexistence of the substrates, 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. By using microfabrication technique, ciliary motion actuator or self-walking gel have been demonstrated. Further, in order to realize nano-actuator, the linear polymer chain and the submicrometer-sized gel beads were prepared. By grafting the polymers or arraying the gel beads on the surface of substrates, we have attempted to design self-oscillating surface as nano-conveyer. For application to biomaterials, it is necessary to cause the self-oscillation under biological condition without using non-biorelated BZ substrates. So we attempted to introduce pH-control site and oxidant-supplying site into the polymer. By using the polymer, self-oscillation only in the existence of biorelated organic acid was actually achieved.

  Info
Periodical
Edited by
Pietro VINCENZINI and Danilo DE ROSSI
Pages
1-4
DOI
10.4028/www.scientific.net/AST.57.1
Citation
R. Yoshida, "Self-Oscillating Gel as Smart Materials", Advances in Science and Technology, Vol. 57, pp. 1-4, 2008
Online since
September 2008
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$32.00
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