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Thermal Scanning Conductometry TSC as a General Method for Studying and Controlling the Phase Behavior of Conductive Physical Gels
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Chemical-to-Electrical-Signal Transduction Synchronized with Smart Gel Volume Phase Transition
Akira Matsumoto1,2, Naoko Sato3,1, Toshiya Sakata3,1
1Center for NanoBio Integration The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan).
Advanced Materials (Deerfield Beach, Fla.)
|June 5, 2015
Abstract:
A stimulus-responsive polymer gel designed on a field-effect transistor gate undergoes a reversible volume phase transition in response to a specific biomolecule. An abrupt permittivity change at the gel/gate interface during the transition gives rise to a chemical to electrical signal conversion; the signal is thus detectable via a transistor without the limit of the Debye length.

