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Controllable Chemical Modification of Polyaniline Nanofibres

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Abstract

A method for simply and controllably modifying the surface of polyaniline nanofibres is described. The technique can be used to attach substituents bearing both acid and amine functional groups, making the materials suitable for further modification. Acid/amine functionalisation is achieved by a simple reflux reaction and therefore is a quick and easily scalable process. The modified nanofibres maintain their ability to switch between different states displaying distinctly different properties, thus making them suitable for adaptive sensing applications. As an example, we demonstrate how biomolecules can be attached to these functionalised nanofibres, to produce conducting polymer-based biosensors.

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Authors and Affiliations

  1. The Centre for Sensor Web Technologies, Dublin City University, Dublin 9, Ireland

    Emer Lahiff & Dermot Diamond

  2. School of Biotechnology and Biomedical Diagnostics Institute, National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland

    Carol Lynam, Niamh Gilmartin & Richard O’Kennedy

  3. ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia

    Gordon Wallace

Authors
  1. Emer Lahiff
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  2. Carol Lynam
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  3. Niamh Gilmartin
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  4. Gordon Wallace
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  5. Richard O’Kennedy
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  6. Dermot Diamond
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Lahiff, E., Lynam, C., Gilmartin, N. et al. Controllable Chemical Modification of Polyaniline Nanofibres. MRS Online Proceedings Library 1240, 602 (2009). https://doi.org/10.1557/PROC-1240-WW06-02

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  • DOI: https://doi.org/10.1557/PROC-1240-WW06-02

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