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PublicationPhysChemChemPhys
Year2008
Volume10
Pages6093-6096
International

A membrane-, mediator, cofactor-less glucose/oxygen biofuel cell

Authors:Vasile Coman , Cristina Vaz Dominguez, Roland Ludwig , Wolfgang Harreither , Dietmar Haltrich , Antonio López de Lacey, Tautgirdas Ruzgas , Lo Gorton , Sergey Shleev
Groups of research:BioElectroCatalysis
We report the fabrication and characterisation of a non-compartmentalised, mediator and cofactor free glucose–oxygen biofuel cell based on adsorbed enzymes exhibiting direct bioelectrocatalysis, viz. cellobiose dehydrogenase from Dichomera saubinetii and laccase from Trametes hirsuta as the anodic and cathodic bioelements, respectively, with the following characteristics: an open-circuit voltage of 0.73 V; a maximum power density of 5 μW cm−2 at 0.5 V of the cell voltage and an estimated half-life of >38 h in air-saturated 0.1 M citrate–phosphate buffer, pH 4.5 containing 5 mM glucose.
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