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Preliminary studies toward the assembly of a gold-polypyrrole (PPy) peapod-like chemiresistive ammonia (NH3) gas
sensors are presented. The proposed synthesis process will use electropolymerization to embed gold nanoparticles in
polypyrrole nanowires. Viral-templating of gold nanoparticles and PPy electrodeposition via cyclic voltammetry are the
focus of this investigation. A gold-binding M13 bacteriophage was used as a bio-template to assemble continuous
chains of gold nanoparticles on interdigitated Pt working electrodes. The dimensions of the resulting nanowire-like
structures were examined and the electrical resistance measured. PPy films were electropolymerized using an
interdigitated planar, Pt electrode integrated counter and reference electrode. Morphological characterization of the
polymer films was completed.
Yiran Yan,Miluo Zhang,Heng Chia Su,Nosang V. Myung, andElaine D. Haberer
"Toward a chemiresistive ammonia (NH3) gas sensor based on viral-templated gold nanoparticles embedded in polypyrrole nanowires", Proc. SPIE 9171, Nanobiosystems: Processing, Characterization, and Applications VII, 91710W (27 August 2014); https://doi.org/10.1117/12.2062183
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Yiran Yan, Miluo Zhang, Heng Chia Su, Nosang V. Myung, Elaine D. Haberer, "Toward a chemiresistive ammonia (NH3) gas sensor based on viral-templated gold nanoparticles embedded in polypyrrole nanowires," Proc. SPIE 9171, Nanobiosystems: Processing, Characterization, and Applications VII, 91710W (27 August 2014); https://doi.org/10.1117/12.2062183