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Materials chemistry approach to anion-sensor design |
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| Authors: | Pavel Anzenbacher Jr Karolina Jursikova Manuel Marquez Radek Pohl |
| Institution: | a Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH 43403, USA b Los Alamos National Laboratory, Chemistry Division, Los Alamos, NM 87545, USA c Kraft Foods, Inc., R&D, The Nanotechnology Lab, 801 Waukegan Road, Glenview, IL 60025, USA d Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 166 10 Prague, Czech Republic |
| Abstract: | 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. |
| Keywords: | Anion Sensor Receptor Conductive polymer Chromogenic material |
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