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Characterization of a urea optical sensor based on polypyrrole

de Marcos, Susana, Hortigüela, Rubén, Gatbán, Javier, Castillo, Juan R. and Wolfbeis, Otto S. (1999) Characterization of a urea optical sensor based on polypyrrole. Microchimica Acta 130 (4), pp. 267-272.

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A new optical sensor for urea determination is presented. It is based on the enzymatic reaction with urease, which is first photoimmobilized with polyacrylamide onto a chemically polymerized polypyrrole (PPy) film. The main advantage of this sensor is that no indicator dye or pH indicator is needed, because PPy itself acts as the support and the indicator. These PPy films show an absorbance ...


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Item type:Article
Institutions:Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, formerly Prof. Wolfbeis)
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Keywords:optical sensor - urea - urease - polypyrrole
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Created at the University of Regensburg:Unknown
Item ID:20476
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