fulltext.study @t Gmail

A role for biosynthetic CdS quantum dots in extracellular electron transfer of Saccharomyces cerevisiae

Paper ID Volume ID Publish Year Pages File Format Full-Text
34197 45010 2015 5 PDF Available
Title
A role for biosynthetic CdS quantum dots in extracellular electron transfer of Saccharomyces cerevisiae
Abstract

•The reduction peak of S. cerevisiae weakened after CdS QDs biosynthesis.•A photocurrent effect in the yeast was observed after CdS QDs biosynthesis.•Several proteins involved in electron transfer decreased in the process.

Extracellular electron transfer is a key process for the interaction between metals and microbes; it can be affected by biosynthetic nanoparticles. In this work, roles of CdS quantum dots (QDs) synthesized by Saccharomyces cerevisiae were studied via electrochemistry and photo-electrochemistry. The reduction current of the yeast in cyclic voltammetry dramatically decreased after QDs biosynthesis, but was enhanced with an illumination. On–off light cycling test illustrated an enhancement of photocurrent effect in yeast after CdS QDs biosynthesis. Several proteins concerned with electron transfer were found decreased in content after CdS QDs biosynthesis, consisting with the decrease in electrochemical activity. This study will help us to better understand the interaction between metals and microorganisms in environment, and also provide biosynthetic QDs a potential use to promote electric production in bioelectrochemical systems.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Keywords; Biosynthesis; Quantum dots; Electron transfer; Photocurrent effect; Proteomics
First Page Preview
A role for biosynthetic CdS quantum dots in extracellular electron transfer of Saccharomyces cerevisiae
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 50, Issue 12, December 2015, Pages 2061–2065
Authors
, , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us