Electrochemical evaluation of poly(3,4-ethylenedioxythiophene) films doped with bacteria based on viability analysis
2015
Abstract To immobilize viable bacteria on an electrode, we present a novel and straightforward technique that relies on the negative ζ-potentials of bacteria for insertion into conducting polymers as dopants. In the present study, we conducted an electrochemical polymerization of poly(3,4-ethylenedioxythiophene) (PEDOT) doped with various gram-negative bacteria, including Pseudomonas aeruginosa , Escherichia coli , and Shewanella oneidensis . The PEDOT film doped with bacteria indicated a typical redox response, high conductivity, and electrochemical stability. Fluorescence microscopy confirmed that approximately 90% of the bacteria incorporated into the PEDOT film at > 0.5 μm in thickness were viable.
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