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  • MRS Proceedings, Volume 1312
  • January 2011, mrsf10-1312-hh09-03

Modified Polyaniline Nanofibres for Ascorbic Acid Detection

  • Larisa Florea (a1), Emer Lahiff (a1) and Dermot Diamond (a1)
  • DOI: http://dx.doi.org/10.1557/opl.2011.672
  • Published online: 01 March 2011
Abstract
ABSTRACT

Polyaniline nanofibres (PAni) can be surface modified to improve electroactivity over a broader pH range. The technique we describe here can be used to attach carboxylic acid terminated substituents. Modified nanofibres maintain their high surface area, and ability to switch between different redox states. These properties make the material suitable for sensing applications. Unlike unmodified PAni, the functionalised material is self-doping and hence more stable in higher pH solutions. Here we demonstrate how modified PAni fibres can be used for the detection of ascorbic acid.

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