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Electron Transfer between the Gram-Positive Enterococcus faecalis Bacterium and Electrode Surface through Osmium Redox Polymers

Pankratova, Galina LU ; Szypulska, Ewelina; Pankratov, Dmitry; Leech, Dónal and Gorton, Lo LU (2019) In ChemElectroChem 6(1). p.110-113
Abstract

The interaction between microorganisms that contain thick cell walls, such as the Gram-positive bacterium Enterococcus faecalis, and conductive surfaces can be improved by using redox polymers as mediators. Herein, we report a detailed electrochemical characterization of the communication between E. faecalis cells and a series of osmium redox polymers with different redox potentials. The current generated from glucose oxidation by films containing osmium redox polymers and E. faecalis cells increase over time (28h), owing to a decrease in charge-transfer resistance within the films, possibly owing to improved penetration of the redox polymer within the bacterial cell wall.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Electrochemical communication, Enterococcus faecalis, Extracellular electron transfer, Gram-positive bacterium, Osmium redox polymers
in
ChemElectroChem
volume
6
issue
1
pages
110 - 113
publisher
Wiley-Blackwell
external identifiers
  • scopus:85050492128
ISSN
2196-0216
DOI
10.1002/celc.201800683
language
English
LU publication?
yes
id
86983e5a-26de-4092-811d-5918fa85cc59
date added to LUP
2018-10-01 11:41:22
date last changed
2019-01-16 11:48:21
@article{86983e5a-26de-4092-811d-5918fa85cc59,
  abstract     = {<p>The interaction between microorganisms that contain thick cell walls, such as the Gram-positive bacterium Enterococcus faecalis, and conductive surfaces can be improved by using redox polymers as mediators. Herein, we report a detailed electrochemical characterization of the communication between E. faecalis cells and a series of osmium redox polymers with different redox potentials. The current generated from glucose oxidation by films containing osmium redox polymers and E. faecalis cells increase over time (28h), owing to a decrease in charge-transfer resistance within the films, possibly owing to improved penetration of the redox polymer within the bacterial cell wall.</p>},
  author       = {Pankratova, Galina and Szypulska, Ewelina and Pankratov, Dmitry and Leech, Dónal and Gorton, Lo},
  issn         = {2196-0216},
  keyword      = {Electrochemical communication,Enterococcus faecalis,Extracellular electron transfer,Gram-positive bacterium,Osmium redox polymers},
  language     = {eng},
  month        = {01},
  number       = {1},
  pages        = {110--113},
  publisher    = {Wiley-Blackwell},
  series       = {ChemElectroChem},
  title        = {Electron Transfer between the Gram-Positive Enterococcus faecalis Bacterium and Electrode Surface through Osmium Redox Polymers},
  url          = {http://dx.doi.org/10.1002/celc.201800683},
  volume       = {6},
  year         = {2019},
}