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Wholly printed polypyrrole nanoparticle-based biosensors on flexible substrate
Australian Institute for Innovative Materials - Papers
  • Bo Weng, University of Wollongong
  • Aoife Morrin, Dublin City University
  • Roderick Shepherd, University of Sydney
  • Karl Crowley, Dublin City University
  • Anthony J Killard, University of the West of England, Bristol
  • Peter C Innis, University of Wollongong
  • Gordon G Wallace, University of Wollongong
Publication Date
Publication Details

Weng, B., Morrin, A., Shepherd, R., Crowley, K., Killard, A. J., Innis, P. C. & Wallace, G. G. (2014). Wholly printed polypyrrole nanoparticle-based biosensors on flexible substrate. Journal of Materials Chemistry B, 2 (7), 793-799.

Printing has been widely used in the sensor industry for its speed, low cost and production scalability. In this work we present a wholly-printed polypyrrole (PPy) based biosensor produced by inkjet printing bioinks composed of dispersions of PPy nanoparticles and enzymes onto screen-printed carbon electrodes. Two enzymes, horseradish peroxidase (HRP) or glucose oxidase (GoD) were incorporated into the PPy nanoparticle dispersions to impart biosensing functionality and selectivity into the conducting polymer ink. Further functionality was also introduced by deposition of a permselective ethyl cellulose (EC) membrane using inkjet printing. Cyclic voltammetry (CV) and chrono-amperometry were used to characterize the response of the PPy biosensors to H2O2 and glucose. Results demonstrated the possibility of PPy based biosensor fabrication using the rapid and low cost technique of inkjet printing. The detection range of H2O2 was found to be 10 μM–10 mM and for glucose was 1–5 mM.
Citation Information
Bo Weng, Aoife Morrin, Roderick Shepherd, Karl Crowley, et al.. "Wholly printed polypyrrole nanoparticle-based biosensors on flexible substrate" (2014) p. 793 - 799
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