Oxygen electroreduction catalysed by laccase wired to gold nanoparticles via the trinuclear copper cluster

Specific wiring of biocatalysts par excellence, viz. redox enzymes, to an electrode can be exploited in the fabrication of high-performance bioelectronic devices. Here we report oxygen electroreduction catalysed by Didymocrea sp. J6 laccase wired to gold nanoparticles via the trinuclear copper clust...

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Published inEnergy & environmental science Vol. 10; no. 2; pp. 498 - 502
Main Authors Dagys, Marius, Laurynenas, Audrius, Ratautas, Dalius, Kulys, Juozas, Vidziunaite, Regina, Talaikis, Martynas, Niaura, Gediminas, Marcinkeviciene, Liucija, Meskys, Rolandas, Shleev, Sergey
Format Journal Article
LanguageEnglish
Published 01.02.2017
Subjects
CATALYSTS
Chemical
Chemistry
Clusters
Copper
CURRENT
CURRENT DENSITY
Electrowinning
Energy & Fuels
Engineering
Environmental Sciences
Enzymes
Gold
Laccase
Multidisciplinary
Nanoparticles
Oxygen
PARTICLES
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Summary:Specific wiring of biocatalysts par excellence, viz. redox enzymes, to an electrode can be exploited in the fabrication of high-performance bioelectronic devices. Here we report oxygen electroreduction catalysed by Didymocrea sp. J6 laccase wired to gold nanoparticles via the trinuclear copper cluster. Bypassing the intramolecular electron transfer, which under certain conditions is the rate-limiting step of oxygen bioelectroreduction, has resulted in the fabrication of a high current density biocathode based on high-redox-potential laccase, which is able to operate in electrolytes with a broad pH range in the presence of high fluoride concentrations.
Bibliography:ObjectType-Article-1
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ISSN:1754-5692
1754-5706
1754-5706
DOI:10.1039/c6ee02232d