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Chemical‐to‐Electrical‐Signal Transduction Synchronized with Smart Gel Volume Phase Transition
Author(s) -
Matsumoto Akira,
Sato Naoko,
Sakata Toshiya,
Yoshida Ryo,
Kataoka Kazunori,
Miyahara Yuji
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200900693
Subject(s) - materials science , phase transition , transistor , permittivity , signal (programming language) , field effect transistor , biomolecule , optoelectronics , nanotechnology , analytical chemistry (journal) , condensed matter physics , electrical engineering , dielectric , voltage , chromatography , chemistry , physics , computer science , programming language , engineering
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.