Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Electrochemical wiring of the Gram-positive bacterium Enterococcus faecalis with osmium redox polymer modified electrodes

Pankratova, Galina LU ; Hasan, Kamrul LU ; Leech, Dónal ; Hederstedt, Lars LU and Gorton, Lo LU (2017) In Electrochemistry Communications 75. p.56-59
Abstract

The Gram-positive bacterium Enterococcus faecalis was investigated to test its ability to electrochemically communicate with electrodes. E. faecalis cells were successfully “wired” to gold electrodes through [Os(2,2′-bipyridine)2-poly(N-vinylimidazole)10Cl]2 +/+ redox polymer. Maximum current density achieved in response to 10 mM D-glucose was 18 ± 1 μA cm− 2. Control experiments without redox polymer showed no current response. This demonstrates the efficiency of the osmium-based mediator in electron transfer between the cells having a thick cell wall and the electrode. The findings have significant importance in microbial electrochemistry for further understanding of microbe-electrode... (More)

The Gram-positive bacterium Enterococcus faecalis was investigated to test its ability to electrochemically communicate with electrodes. E. faecalis cells were successfully “wired” to gold electrodes through [Os(2,2′-bipyridine)2-poly(N-vinylimidazole)10Cl]2 +/+ redox polymer. Maximum current density achieved in response to 10 mM D-glucose was 18 ± 1 μA cm− 2. Control experiments without redox polymer showed no current response. This demonstrates the efficiency of the osmium-based mediator in electron transfer between the cells having a thick cell wall and the electrode. The findings have significant importance in microbial electrochemistry for further understanding of microbe-electrode interactions.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Electrochemical communication, Enterococcus faecalis, Gram-positive bacterium, Osmium redox polymer
in
Electrochemistry Communications
volume
75
pages
4 pages
publisher
Elsevier
external identifiers
  • wos:000393249700014
  • scopus:85008197796
ISSN
1388-2481
DOI
10.1016/j.elecom.2016.12.010
language
English
LU publication?
yes
id
96214ac4-eae8-495b-a06a-15c3ee2d3327
date added to LUP
2017-02-06 07:52:55
date last changed
2024-08-18 14:50:50
@article{96214ac4-eae8-495b-a06a-15c3ee2d3327,
  abstract     = {{<p>The Gram-positive bacterium Enterococcus faecalis was investigated to test its ability to electrochemically communicate with electrodes. E. faecalis cells were successfully “wired” to gold electrodes through [Os(2,2′-bipyridine)<sub>2</sub>-poly(N-vinylimidazole)<sub>10</sub>Cl]<sup>2 +/+</sup> redox polymer. Maximum current density achieved in response to 10 mM D-glucose was 18 ± 1 μA cm<sup>− 2</sup>. Control experiments without redox polymer showed no current response. This demonstrates the efficiency of the osmium-based mediator in electron transfer between the cells having a thick cell wall and the electrode. The findings have significant importance in microbial electrochemistry for further understanding of microbe-electrode interactions.</p>}},
  author       = {{Pankratova, Galina and Hasan, Kamrul and Leech, Dónal and Hederstedt, Lars and Gorton, Lo}},
  issn         = {{1388-2481}},
  keywords     = {{Electrochemical communication; Enterococcus faecalis; Gram-positive bacterium; Osmium redox polymer}},
  language     = {{eng}},
  month        = {{02}},
  pages        = {{56--59}},
  publisher    = {{Elsevier}},
  series       = {{Electrochemistry Communications}},
  title        = {{Electrochemical wiring of the Gram-positive bacterium <em>Enterococcus faecalis</em> with osmium redox polymer modified electrodes}},
  url          = {{http://dx.doi.org/10.1016/j.elecom.2016.12.010}},
  doi          = {{10.1016/j.elecom.2016.12.010}},
  volume       = {{75}},
  year         = {{2017}},
}