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Issue 2, 2017
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Oxygen electroreduction catalysed by laccase wired to gold nanoparticles via the trinuclear copper cluster

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Abstract

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.

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

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Article information


Submitted
02 Aug 2016
Accepted
26 Oct 2016
First published
26 Oct 2016

Energy Environ. Sci., 2017,10, 498-502
Article type
Communication

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

M. Dagys, A. Laurynėnas, D. Ratautas, J. Kulys, R. Vidžiūnaitė, M. Talaikis, G. Niaura, L. Marcinkevičienė, R. Meškys and S. Shleev, Energy Environ. Sci., 2017, 10, 498
DOI: 10.1039/C6EE02232D

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