Sensing Behaviors of Polypyrrole Nanotubes Prepared in Reverse Microemulsions: Effects of Transducer Size and Transduction Mechanism

Polypyrrole nanotubes with different diameters were readily fabricated using cylindrical micelle templates in sodium bis(2-ethylhexyl) sulfosuccinate reverse microemulsions

Hyeonseok Yoon; Mincheol Chang; Jyongsik Jang

2006

Key concepts

Scholarcy highlights

  • Polypyrrole nanotubes with different diameters were readily fabricated using cylindrical micelle templates in sodium bis(2-ethylhexyl) sulfosuccinate reverse microemulsions
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  • The PPy nanotubes were deposited onto a microelectrode array and were exposed to chemical vapor and electromagnetic radiation: typically, NH3 vapor and UV light were chosen
  • The electrical response of PPy nanotubes to two different kinds of analytes was strongly dependent on their diameters
  • Since the small dimensions of PPy nanotubes facilitated the interaction between nanotubes and analytes, the PPy nanotube sensors showed conspicuously enhanced responses compared with conventional PPy

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