One hundred nm wide by four μm long poly(methyl pyrrole) (PMPy) nanowires without and with biomolecule, biotin‐quantum dot, were synthesized by electrochemical polymerization of 1‐methyl pyrrole with chloride and p ‐toluene sulfonate dopants in nanochannels between microfabricated gold electrodes. Scanning electron microscopy examination revealed well‐confined dendrite free chloride‐doped PMPy nanowires with embedded biotin‐quantum dot. Current vs. voltage investigation demonstrated ohmic nature of contact for all nanowires. Chloride‐doped PMPy nanowires were more conductive than with p ‐toluene sulfonate doped PMPy nanowires whereas entrapment of biotin‐quantum dot increased the conductivity.
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Ramanathan et al. (2007) studied this question.
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