期刊
TETRAHEDRON
卷 60, 期 49, 页码 11163-11168出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2004.08.060
关键词
anion; sensor; receptor; conductive polymer; chromogenic material
A new approach to sensing of aqueous phosphate-related anions based on chromogenic conductive polymers is demonstrated. The anion-sensor affinity can be adjusted by externally applied voltage. Introduction of p-doping to the polymers results in augmented anion sensitivity, which is ascribed to the effect of synergy between low-level p-doping in a polythiophene polymer and hydrogen bonding. The chromogenic conductive polymer films display anion-specific changes in color, conductivity, and mass upon increasing concentration of anions. (C) 2004 Elsevier Ltd. All rights reserved.
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