Electrochemical wiring of the Gram-positive bacterium Enterococcus faecalis with osmium redox polymer modified electrodes
(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)
- author
- Pankratova, Galina LU ; Hasan, Kamrul LU ; Leech, Dónal ; Hederstedt, Lars LU and Gorton, Lo LU
- organization
- publishing date
- 2017-02-01
- 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
-
- scopus:85008197796
- wos:000393249700014
- 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
- 2024-02-29 08:00:47
@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}},
}