Effect of electrode spacing on electron transfer and conductivity of Geobacter sulfurreducens biofilms.
Biofilm conductivity
Electrochemically active biofilm
Exoelectrogens
Extracellular electron transfer
Microbial electrochemistry and spatial heterogeneity
Journal
Bioelectrochemistry (Amsterdam, Netherlands)
ISSN: 1878-562X
Titre abrégé: Bioelectrochemistry
Pays: Netherlands
ID NLM: 100953583
Informations de publication
Date de publication:
Feb 2020
Feb 2020
Historique:
received:
15
04
2019
revised:
12
09
2019
accepted:
13
09
2019
pubmed:
11
11
2019
medline:
1
1
2020
entrez:
10
11
2019
Statut:
ppublish
Résumé
To understand electron transport in electrochemically active biofilms, it is necessary to elucidate the heterogeneous electron transport across the biofilm/electrode interface and in the interior of G. sulfurreducens biofilms bridging gaps of varying widths. The conductivity of Geobacter sulfurreducens biofilm bridging nonconductive gaps with widths of 5µm, 10µm, 20µm and 50µm is investigated. Results of electrochemical gating measurement show that biofilm conductivity peaks at the potential of -0.35V vs. Ag/AgCl. The biofilm conductivity increases with gap width (10.4±0.2µScm
Identifiants
pubmed: 31704456
pii: S1567-5394(19)30244-0
doi: 10.1016/j.bioelechem.2019.107395
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
107395Informations de copyright
Copyright © 2019 Elsevier B.V. All rights reserved.