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Characterization of a urea optical sensor based on polypyrrole

de Marcos, Susana and Hortigüela, Rubén and Gatbán, Javier and 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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Abstract

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
Date:1999
Institutions:Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Otto S. Wolfbeis)
Identification Number:
ValueType
10.1007/BF01242915DOI
Keywords:optical sensor - urea - urease - polypyrrole
Subjects:500 Science > 540 Chemistry & allied sciences
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Owner: Petra Gürster
Deposited On:18 Apr 2011 13:26
Last Modified:13 Mar 2014 17:13
Item ID:20476
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