Direct Electrochemistry of Cytochrome bo Oxidase at a series of Gold Nanoparticles-Modified Electrodes

Direct Electrochemistry of Cytochrome bo Oxidase at a series of Gold Nanoparticles-Modified Electrodes

New membrane-protein based electrodes were prepared incorporating cytochrome bo(3) from E. coli and gold nanoparticles. Direct electron transfer between the electrode and the immobilized enzymes was achieved, resulting in an electrocatalytic activity in presence of O(2). The size of the gold nanopar...

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Bibliographic Details
Published in:Electrochemistry communications Vol. 26; pp. 105 - 108
Main Authors: Melin, Frederic, Meyer, Thomas, Lankiang, Styven, Choi, Sylvia K, Gennis, Robert B, Blanck, Christian, Schmutz, Marc, Hellwig, Petra
Format: Journal Article
Language:English
Published: United States Elsevier 01-01-2013
Subjects:
Catalysis
Chemical Sciences
Spectroélectrochimie
Électrochimie
Chimie Physique
Spectroscopie
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Summary:New membrane-protein based electrodes were prepared incorporating cytochrome bo(3) from E. coli and gold nanoparticles. Direct electron transfer between the electrode and the immobilized enzymes was achieved, resulting in an electrocatalytic activity in presence of O(2). The size of the gold nanoparticles was shown to be important and smaller particles were shown to reduce the overpotential of the process.
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PMCID: PMC3546826
ISSN:1388-2481
DOI:10.1016/j.elecom.2012.10.024