Abstract
A urea biosensor was developed by immobilizing urease into an electropolymerized electroinactive polypyrrole (PPy) on a platinum electrode. This enzyme-immobilized PPy electrode showed a stable potential response to urea based on the pH response of the electroinactive PPy film electrode. The electropolymerization conditions were optimized, and thus the biosensor showed a Nernstian response with a slope of 31.8mV decade-1 over concentration range of 1 × 10-4-0.3 mol dm-3 urea.
Original language | English |
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Pages (from-to) | 383-388 |
Number of pages | 6 |
Journal | Electrochimica Acta |
Volume | 42 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1997 |
Externally published | Yes |
Keywords
- Biosensor
- Electropolymerization
- Polypyrrole
- Urea
ASJC Scopus subject areas
- Chemical Engineering(all)
- Electrochemistry