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Issue 8, 2018
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Highly efficient direct oxygen electro-reduction by partially unfolded laccases immobilized on waste-derived magnetically separable nanoparticles

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Abstract

A biocatalytic system based on laccase functionalized waste-derived iron oxide nanoparticles (LAC-DA-Fe2O3) was designed by a mechanochemical approach and employed in the electrocatalytic reduction of oxygen. Full characterization of the obtained bioconjugates revealed that the protein adopted a partially unfolded state. The mentioned configuration, together with the geometry coordination changes along the T1 center can be further related to a high bioelectrocatalytic response. A current density up to 2.9 mA cm−2 has been achieved, which is among the highest values reported in literature for laccase functionalized nanomaterials.

Graphical abstract: Highly efficient direct oxygen electro-reduction by partially unfolded laccases immobilized on waste-derived magnetically separable nanoparticles

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Article information


Submitted
18 Jan 2018
Accepted
03 Feb 2018
First published
05 Feb 2018

Nanoscale, 2018,10, 3961-3968
Article type
Paper

Highly efficient direct oxygen electro-reduction by partially unfolded laccases immobilized on waste-derived magnetically separable nanoparticles

D. Rodríguez-Padrón, A. R. Puente-Santiago, A. Caballero, A. M. Balu, A. A. Romero and R. Luque, Nanoscale, 2018, 10, 3961
DOI: 10.1039/C8NR00512E

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