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Sensors 2007, 7(3), 239-250; https://doi.org/10.3390/s7030239

A Hydrogen Peroxide Sensor Prepared by Electropolymerization of Pyrrole Based on Screen-Printed Carbon Paste Electrodes

1,* , 2
and
1
1
National Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, P.R. China
2
Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, P.R. China
*
Author to whom correspondence should be addressed.
Received: 5 January 2007 / Accepted: 28 February 2007 / Published: 5 March 2007
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Abstract

A disposable amperometric biosensor for commercial use to detect hydrogenperoxide has been developed. The sensor is based on screen-printed carbon paste electrodesmodified by electropolymerization of pyrrole with horseradish peroxidase (HRP) entrapped.The facture techniques of fabricating the enzyme electrodes are suitable for mass productionand quality control. The biosensor shows a linear amperometric response to H2O2 from 0.1to 2.0 mM, with a sensitivity of 33.24 μA mM-1 cm-2. Different operational parameters ofelectropolymerization are evaluated and optimized. View Full-Text
Keywords: Electropolymerization; Biosensor; Polypyrrole; Horseradish Peroxidase; Screen- Printed Electrodes Electropolymerization; Biosensor; Polypyrrole; Horseradish Peroxidase; Screen- Printed Electrodes
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Li, G.; Wang, Y.; Xu, H. A Hydrogen Peroxide Sensor Prepared by Electropolymerization of Pyrrole Based on Screen-Printed Carbon Paste Electrodes. Sensors 2007, 7, 239-250.

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