Design of a bioelectrocatalytic electrode interface for oxygen reduction in biofuel cells based on a specifically adapted Os-complex containing redox polymer with entrapped Trametes hirsuta laccase

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Design of a bioelectrocatalytic electrode interface for oxygen reduction in biofuel cells based on a specifically adapted Os-complex containing redox polymer with entrapped Trametes hirsuta laccase

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Publication Article, peer reviewed scientific
Title Design of a bioelectrocatalytic electrode interface for oxygen reduction in biofuel cells based on a specifically adapted Os-complex containing redox polymer with entrapped Trametes hirsuta laccase
Author(s) Ackermann, Yvonne ; Guschin, Dmitrii ; Eckhard, Kathrin ; Shleev, Sergey ; Schuhmann, Wolfgang
Date 2010
English abstract
The design of the coordination shell of an Os-complex and its integration within an electrodeposition polymer enables fast electron transfer between an electrode and a polymer entrapped high-potential laccase from the basidiomycete Trametes hirsuta. The redox potential of the Os3+/2+-centre tethered to the polymer backbone (+720 mV vs. NHE) is perfectly matching the potential of the enzyme (+780 mV vs. NHE at pH 6.5). The laccase and the Os-complex modified anodic electrodeposition polymer were simultaneously precipitated on the surface of a glassy carbon electrode by means of a pH-shift to 2.5. The modified electrode was investigated with respect to biocatalytic oxygen reduction to water. The proposed modified electrode has potential applications as biofuel cell cathode.
DOI http://dx.doi.org/10.1016/j.elecom.2010.02.019 (link to publisher's fulltext)
Publisher Elsevier B.V.
Host/Issue Electrochemistry Communications;5
Volume 12
ISSN 1388-2481
Pages 640-643
Language eng (iso)
Subject(s) Laccase
Oxygen reduction
Redox polymer
Biofuel cells
Sciences
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/11191 (link to this page)

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