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Following Nature : Bioinspired Mediation Strategy for Gram-Positive Bacterial Cells

Pankratova, Galina LU ; Pankratov, Dmitry; Milton, Ross D.; Minteer, Shelley D. and Gorton, Lo LU (2019) In Advanced Energy Materials
Abstract

Employment of redox polymers as mediators is a promising concept to facilitate electron transfer (ET) and improve operational performance of bioelectrochemical systems. Materials science offers a broad range of mediation possibilities; however, their employment so far relies on a trial-and-error approach, since there is no comprehensive understanding of the nature of the ET between bacterial cells and redox polymers. In the current work, the polymer–cell interaction is investigated in detail and clear experimental evidence that a redox polymer containing quinone moieties mimicking the natural bacterial charge carriers can be incorporated into the respiratory chain of Gram-positive Enterococcus faecalis cells and outperform monomeric... (More)

Employment of redox polymers as mediators is a promising concept to facilitate electron transfer (ET) and improve operational performance of bioelectrochemical systems. Materials science offers a broad range of mediation possibilities; however, their employment so far relies on a trial-and-error approach, since there is no comprehensive understanding of the nature of the ET between bacterial cells and redox polymers. In the current work, the polymer–cell interaction is investigated in detail and clear experimental evidence that a redox polymer containing quinone moieties mimicking the natural bacterial charge carriers can be incorporated into the respiratory chain of Gram-positive Enterococcus faecalis cells and outperform monomeric mediator in ET features is reported. The presented findings disclose the main principles to overcome incompatibilities between abiotic charge carriers and microbial metabolism and provide essential knowledge for further development of mediated microbial bioelectrocatalysis.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Enterococcus faecalis, extracellular electron transfer, Gram-positive bacterium, microbial bioelectrocatalysis, redox mediators
in
Advanced Energy Materials
publisher
Wiley-Blackwell
external identifiers
  • scopus:85062364576
ISSN
1614-6832
DOI
10.1002/aenm.201900215
language
English
LU publication?
yes
id
2b1cefbb-0da3-4b53-8451-1e4386d9c0d4
date added to LUP
2019-03-14 13:17:35
date last changed
2019-04-10 04:21:01
@article{2b1cefbb-0da3-4b53-8451-1e4386d9c0d4,
  abstract     = {<p>Employment of redox polymers as mediators is a promising concept to facilitate electron transfer (ET) and improve operational performance of bioelectrochemical systems. Materials science offers a broad range of mediation possibilities; however, their employment so far relies on a trial-and-error approach, since there is no comprehensive understanding of the nature of the ET between bacterial cells and redox polymers. In the current work, the polymer–cell interaction is investigated in detail and clear experimental evidence that a redox polymer containing quinone moieties mimicking the natural bacterial charge carriers can be incorporated into the respiratory chain of Gram-positive Enterococcus faecalis cells and outperform monomeric mediator in ET features is reported. The presented findings disclose the main principles to overcome incompatibilities between abiotic charge carriers and microbial metabolism and provide essential knowledge for further development of mediated microbial bioelectrocatalysis.</p>},
  articleno    = {1900215},
  author       = {Pankratova, Galina and Pankratov, Dmitry and Milton, Ross D. and Minteer, Shelley D. and Gorton, Lo},
  issn         = {1614-6832},
  keyword      = {Enterococcus faecalis,extracellular electron transfer,Gram-positive bacterium,microbial bioelectrocatalysis,redox mediators},
  language     = {eng},
  month        = {03},
  publisher    = {Wiley-Blackwell},
  series       = {Advanced Energy Materials},
  title        = {Following Nature : Bioinspired Mediation Strategy for Gram-Positive Bacterial Cells},
  url          = {http://dx.doi.org/10.1002/aenm.201900215},
  year         = {2019},
}