Spatial distribution of bacterial communities on volumetric and planar anodes in single-chamber air-cathode microbial fuel cells

Handle URI:
http://hdl.handle.net/10754/599684
Title:
Spatial distribution of bacterial communities on volumetric and planar anodes in single-chamber air-cathode microbial fuel cells
Authors:
Vargas, Ignacio T.; Albert, Istvan U.; Regan, John M.
Abstract:
Pyrosequencing was used to characterize bacterial communities in air-cathode microbial fuel cells across a volumetric (graphite fiber brush) and a planar (carbon cloth) anode, where different physical and chemical gradients would be expected associated with the distance between anode location and the air cathode. As expected, the stable operational voltage and the coulombic efficiency (CE) were higher for the volumetric anode than the planar anode (0.57V and CE=22% vs. 0.51V and CE=12%). The genus Geobacter was the only known exoelectrogen among the observed dominant groups, comprising 57±4% of recovered sequences for the brush and 27±5% for the carbon-cloth anode. While the bacterial communities differed between the two anode materials, results showed that Geobacter spp. and other dominant bacterial groups were homogenously distributed across both planar and volumetric anodes. This lends support to previous community analysis interpretations based on a single biofilm sampling location in these systems. © 2013 Wiley Periodicals, Inc.
Citation:
Vargas IT, Albert IU, Regan JM (2013) Spatial distribution of bacterial communities on volumetric and planar anodes in single-chamber air-cathode microbial fuel cells. Biotechnology and Bioengineering 110: 3059–3062. Available: http://dx.doi.org/10.1002/bit.24949.
Publisher:
Wiley-Blackwell
Journal:
Biotechnology and Bioengineering
KAUST Grant Number:
KUS-I1-003-13
Issue Date:
29-May-2013
DOI:
10.1002/bit.24949
PubMed ID:
23616357
Type:
Article
ISSN:
0006-3592
Sponsors:
King Abdullah University of Science and Technology (KAUST). Grant Number: KUS-I1-003-13;FONDECYT Project. Grant Number: 11110112/2011;CEDEUS (Centro de Desarrollo Urbano Sustentable). Grant Number: CONICYT/FONDAP/15110020
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorVargas, Ignacio T.en
dc.contributor.authorAlbert, Istvan U.en
dc.contributor.authorRegan, John M.en
dc.date.accessioned2016-02-28T06:07:28Zen
dc.date.available2016-02-28T06:07:28Zen
dc.date.issued2013-05-29en
dc.identifier.citationVargas IT, Albert IU, Regan JM (2013) Spatial distribution of bacterial communities on volumetric and planar anodes in single-chamber air-cathode microbial fuel cells. Biotechnology and Bioengineering 110: 3059–3062. Available: http://dx.doi.org/10.1002/bit.24949.en
dc.identifier.issn0006-3592en
dc.identifier.pmid23616357en
dc.identifier.doi10.1002/bit.24949en
dc.identifier.urihttp://hdl.handle.net/10754/599684en
dc.description.abstractPyrosequencing was used to characterize bacterial communities in air-cathode microbial fuel cells across a volumetric (graphite fiber brush) and a planar (carbon cloth) anode, where different physical and chemical gradients would be expected associated with the distance between anode location and the air cathode. As expected, the stable operational voltage and the coulombic efficiency (CE) were higher for the volumetric anode than the planar anode (0.57V and CE=22% vs. 0.51V and CE=12%). The genus Geobacter was the only known exoelectrogen among the observed dominant groups, comprising 57±4% of recovered sequences for the brush and 27±5% for the carbon-cloth anode. While the bacterial communities differed between the two anode materials, results showed that Geobacter spp. and other dominant bacterial groups were homogenously distributed across both planar and volumetric anodes. This lends support to previous community analysis interpretations based on a single biofilm sampling location in these systems. © 2013 Wiley Periodicals, Inc.en
dc.description.sponsorshipKing Abdullah University of Science and Technology (KAUST). Grant Number: KUS-I1-003-13;FONDECYT Project. Grant Number: 11110112/2011;CEDEUS (Centro de Desarrollo Urbano Sustentable). Grant Number: CONICYT/FONDAP/15110020en
dc.publisherWiley-Blackwellen
dc.subjectAnodic communityen
dc.subjectMFCen
dc.subjectPyrosequencingen
dc.titleSpatial distribution of bacterial communities on volumetric and planar anodes in single-chamber air-cathode microbial fuel cellsen
dc.typeArticleen
dc.identifier.journalBiotechnology and Bioengineeringen
dc.contributor.institutionDepartment of Biochemistry and Molecular Biology; The Pennsylvania State University; University Park, Pennsylvaniaen
dc.contributor.institutionDepartment of Civil and Environmental Engineering; The Pennsylvania State University; University Park, Pennsylvaniaen
kaust.grant.numberKUS-I1-003-13en
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