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Potentiometric Cholesterol Biosensor Based on ZnO Nanowalls and Stabilized Polymerized Lipid Film
National Technical University of Athens, Greece .
National Technical University of Athens, Greece .
National Technical University of Athens, Greece .
University of Athens, Greece .
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2013 (English)In: Electroanalysis, ISSN 1040-0397, E-ISSN 1521-4109, Vol. 25, no 2, 367-372 p.Article in journal (Refereed) Published
Abstract [en]

A novel potentiometric cholesterol biosensor was fabricated by immobilization of cholesterol oxidase into stabilized lipid films using zinc oxide (ZnO) nanowalls as measuring electrode. Cholesterol oxidase was incorporated into the lipid film prior polymerization on the surface of ZnO nanowalls resulting in a sensitive, selective, stable and reproducible cholesterol biosensor. The potentiometric response was 57mV/ decade concentration. The sensor response had no interferences by normal concentrations of ascorbic acid, glucose, and urea, proteins and lipids. The present biosensor could be implanted in the human body because of the biocompatibility of the lipid film.

Place, publisher, year, edition, pages
John Wiley & Sons, 2013. Vol. 25, no 2, 367-372 p.
Keyword [en]
ZnO nanowalls, Potentiometric nanosensors, Cholesterol oxidase, Cholesterol, Stabilized lipid films
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-90207DOI: 10.1002/elan.201200591ISI: 000314920000005OAI: oai:DiVA.org:liu-90207DiVA: diva2:612349
Available from: 2013-03-21 Created: 2013-03-21 Last updated: 2017-12-06

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Israr Qadir, MuhammadWillander, Magnus

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