Impact of surface modification with gold nanoparticles on the bioelectrocatalytic parameters of immobilized bilirubin oxidase

DSpace Repository

Impact of surface modification with gold nanoparticles on the bioelectrocatalytic parameters of immobilized bilirubin oxidase

Show full item record

Files for download

Facebook

Simple item record

Publication Article, peer reviewed scientific
Title Impact of surface modification with gold nanoparticles on the bioelectrocatalytic parameters of immobilized bilirubin oxidase
Author(s) Pankratov, Dmitry ; Zeifman, Yulia S. ; Dudareva, Alexandra V. ; Pankratova, Galina K. ; Khlupova, Maria E. ; Parunova, Yulia M. ; Zajtsev, Dmitry N. ; Bashirova, Nina F. ; Popov, Vladimir O. ; Shleev, Sergey
Date 2014
English abstract
We unveil experimental evidence that put into question the widely held notion concerning the impact of nanoparticles on the bioelectrocatalytic parameters of enzymatic electrodes. Comparative studies of the bioelectrocatalytic properties of fungal bilirubin oxidase from Myrothecium verrucaria adsorbed on gold electrodes, modified with gold nanoparticles of different diameters, clearly indicate that neither the direct electron transfer rate (standard heterogeneous electron transfer rate constants were calculated to be 31±9 s-1) nor the biocatalytic activity of the adsorbed enzyme (bioelectrocatalytic constants were calculated to be 34±11 s-1) depends on the size of the nanoparticles, which had diameters close to or larger than those of the enzyme molecules.
Publisher Park Media Ltd
Host/Issue Acta Naturae;1
Volume 6
ISSN 2075-8251
Pages 102-106
Language eng (iso)
Subject(s) gold nanoparticle
bilirubin oxidase
direct electron transfer
bioelectrocatalysis
Sciences
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/18213 (link to this page)

This item appears in the following Collection(s)

Show full item record

Search


Browse

My Account

Statistics