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Effects of bio-Au nanoparticles on electrochemical activity of Shewanella oneidensis wild type and ΔomcA/mtrC mutant.

Abstract：

:Both Shewanella oneidensis MR-1 wild type and its mutant ΔomcA/mtrC are capable of transforming Au(III) into Au nanoparticles (AuNPs). Cyclic voltammetry reveals a decrease in redox current after the wild type is exposed to Au(III) but an increase in oxidation current for the mutant. The peak current of the wild type is much higher than that of the mutant before the exposure of Au(III), but lower than that of the mutant after the formation of AuNPs. This suggests that damage to the electron transfer chain in the mutant could be repaired by AuNPs to a certain extent. Spectroscopy and SDS-PAGE analysis indicate a decrease in cell protein content after the formation of AuNPs, which provides a convenient way to detect intracellular information on cells.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Wu R,Cui L,Chen L,Wang C,Cao C,Sheng G,Yu H,Zhao F

doi

10.1038/srep03307

subject

Has Abstract

pub_date

2013-11-22 00:00:00

pages

3307

issn

2045-2322

pii

srep03307

journal_volume

3

pub_type

杂志文章

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