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Enzymatic Oxygen Microsensor Based on Bilirubin Oxidase Applied to Microbial Fuel Cells Analysis.

Authors :
Grattieri, Matteo
Babanova, Sofia
Santoro, Carlo
Guerrini, Edoardo
Trasatti, Stefano PM
Cristiani, Pierangela
Bestetti, Massimiliano
Atanassov, Plamen
Source :
Electroanalysis; Feb2015, Vol. 27 Issue 2, p327-335, 9p
Publication Year :
2015

Abstract

A selective oxygen biosensor based on bilirubin oxidase (BOx) was developed. The sensor was used for determining oxygen profiles in a membraneless, single-chamber microbial fuel cell (SCMFC), fed with raw wastewater. The linear response of the sensor was optimized by a diffusion layer of silica gel. A computer-controlled stage was used to obtain accurate and precise measurements. Oxygen concentration in biofilms covering electrodes was measured, showing 3 mg L<superscript>−1</superscript> of O<subscript>2</subscript> in the bulk solution, decreasing to 0 mg L<superscript>−1</superscript> in the cathodic biofilm. The MFC generated power in the range of 0-0.08 mW, associated to the oxygen content. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10400397
Volume :
27
Issue :
2
Database :
Complementary Index
Journal :
Electroanalysis
Publication Type :
Academic Journal
Accession number :
100824989
Full Text :
https://doi.org/10.1002/elan.201400543