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Controllable Chemical Modification of Polyaniline Nanofibres

Published online by Cambridge University Press:  31 January 2011

Emer Lahiff ,
Carol Lynam ,
Niamh Gilmartin ,
Gordon G Wallace ,
Richard O’Kennedy  and
Dermot Diamond
Emer Lahiff
Affiliation:
emer.lahiff@dcu.ie, Dublin City University, CLARITY: The Centre for Sensor Web Technologies, Dublin, Ireland
Carol Lynam
Affiliation:
carollynam1@gmail.com, Dublin City University, School of Biotechnology and Biomedical Diagnostics Institute, Dublin, Ireland
Niamh Gilmartin
Affiliation:
niamh.gilmartin@gmail.com, Dublin City University, School of Biotechnology and Biomedical Diagnostics Institute, Dublin, Ireland
Gordon G Wallace
Affiliation:
gwallace@uow.edu.au, United States
Richard O’Kennedy
Affiliation:
richard.okennedy@dcu.ie, Dublin City University, School of Biotechnology and Biomedical Diagnostics Institute, Dublin, Ireland
Dermot Diamond
Affiliation:
dermot.diamond@dcu.ie, Dublin City University, CLARITY: The Centre for Sensor Web Technologies, Dublin, Ireland
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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.

Keywords

nanostructurepolymersensor
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1240: Symposium WW – Polymer Nanofibers–Fundamental Studies and Emerging Applications , 2009 , 1240-WW06-02
Copyright
Copyright © Materials Research Society 2010

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