Self-Oscillating Gel as Smart Materials

Ryo Yoshida

doi:10.4028/www.scientific.net/AST.57.1

Paper Titles

Committees

Preface

Self-Oscillating Gel as Smart Materials
p.1

Bioinspired Polymer Surfaces for Nanodevices and Nanomedicine
p.5

Smart Hydrogels that Respond to Target Biomolecules
p.15

Encouraging Nature with Ceramics: The Roles of Surface Roughness and Physio-Chemistry on Cell Response to Substituted Apatites
p.22

Synthesis of Bioactive Hydroxyapatite-Zirconia Toughened Composites for Bone Replacement
p.31

Photoluminescence Response and Particle Size Control of CdSe Quantum Dots by Wet Chemical Synthesis for Biomedical Applications
p.37

Purification, Dispersion and Biofunctionalization of Singlewall Carbon Nanotubes
p.44

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 57Self-Oscillating Gel as Smart Materials

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.