Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens

Autores
Schrott, Germán David; Bonanni, Pablo Sebastian; Robuschi, Luciana; Esteve Nuñez, Abraham; Busalmen, Juan Pablo
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Electroactive bacterial biofilms can be produced on a polarized electrode by forcing its use as the final electron acceptor for bacterial respiration. This strategy offers the researcher the unique possibility to control the respiration process with extreme precision. The production of current, the accumulation of charge and the conducting properties of electroactive biofilms has been interrogated in this work through very basic electrochemical techniques including chronopotentiometry, chronoamperometry and cyclic voltammetry. Presented results indicate that charge can be accumulated in the biofilm conductive network, that network conductivity does not represent a limit for current production and that both the steady state current and the amount of accumulated charge depend on the redox state of cytochromes wiring the cells to the electrode. A model of biofilm conduction is presented as well.
Fil: Schrott, Germán David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Bonanni, Pablo Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Robuschi, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Esteve Nuñez, Abraham. Universidad de Alcala; España
Fil: Busalmen, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Materia
Geobacter Sulfurreducens
Biofilms
Chatge Accumulation
Capacitor-Like Effect
Electron Transport
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/10310
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducensSchrott, Germán DavidBonanni, Pablo SebastianRobuschi, LucianaEsteve Nuñez, AbrahamBusalmen, Juan PabloGeobacter SulfurreducensBiofilmsChatge AccumulationCapacitor-Like EffectElectron Transporthttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Electroactive bacterial biofilms can be produced on a polarized electrode by forcing its use as the final electron acceptor for bacterial respiration. This strategy offers the researcher the unique possibility to control the respiration process with extreme precision. The production of current, the accumulation of charge and the conducting properties of electroactive biofilms has been interrogated in this work through very basic electrochemical techniques including chronopotentiometry, chronoamperometry and cyclic voltammetry. Presented results indicate that charge can be accumulated in the biofilm conductive network, that network conductivity does not represent a limit for current production and that both the steady state current and the amount of accumulated charge depend on the redox state of cytochromes wiring the cells to the electrode. A model of biofilm conduction is presented as well.Fil: Schrott, Germán David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Bonanni, Pablo Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Robuschi, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Esteve Nuñez, Abraham. Universidad de Alcala; EspañaFil: Busalmen, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaElsevier2011-07-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10310Schrott, Germán David; Bonanni, Pablo Sebastian; Robuschi, Luciana; Esteve Nuñez, Abraham; Busalmen, Juan Pablo; Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens; Elsevier; Electrochimica Acta; 56; 28; 8-7-2011; 10791-107950013-4686enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0013468611010115info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2011.07.001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:11:45Zoai:ri.conicet.gov.ar:11336/10310instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:11:46.446CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens
title Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens
spellingShingle Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens
Schrott, Germán David
Geobacter Sulfurreducens
Biofilms
Chatge Accumulation
Capacitor-Like Effect
Electron Transport
title_short Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens
title_full Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens
title_fullStr Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens
title_full_unstemmed Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens
title_sort Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens
dc.creator.none.fl_str_mv Schrott, Germán David
Bonanni, Pablo Sebastian
Robuschi, Luciana
Esteve Nuñez, Abraham
Busalmen, Juan Pablo
author Schrott, Germán David
author_facet Schrott, Germán David
Bonanni, Pablo Sebastian
Robuschi, Luciana
Esteve Nuñez, Abraham
Busalmen, Juan Pablo
author_role author
author2 Bonanni, Pablo Sebastian
Robuschi, Luciana
Esteve Nuñez, Abraham
Busalmen, Juan Pablo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Geobacter Sulfurreducens
Biofilms
Chatge Accumulation
Capacitor-Like Effect
Electron Transport
topic Geobacter Sulfurreducens
Biofilms
Chatge Accumulation
Capacitor-Like Effect
Electron Transport
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Electroactive bacterial biofilms can be produced on a polarized electrode by forcing its use as the final electron acceptor for bacterial respiration. This strategy offers the researcher the unique possibility to control the respiration process with extreme precision. The production of current, the accumulation of charge and the conducting properties of electroactive biofilms has been interrogated in this work through very basic electrochemical techniques including chronopotentiometry, chronoamperometry and cyclic voltammetry. Presented results indicate that charge can be accumulated in the biofilm conductive network, that network conductivity does not represent a limit for current production and that both the steady state current and the amount of accumulated charge depend on the redox state of cytochromes wiring the cells to the electrode. A model of biofilm conduction is presented as well.
Fil: Schrott, Germán David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Bonanni, Pablo Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Robuschi, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Esteve Nuñez, Abraham. Universidad de Alcala; España
Fil: Busalmen, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
description Electroactive bacterial biofilms can be produced on a polarized electrode by forcing its use as the final electron acceptor for bacterial respiration. This strategy offers the researcher the unique possibility to control the respiration process with extreme precision. The production of current, the accumulation of charge and the conducting properties of electroactive biofilms has been interrogated in this work through very basic electrochemical techniques including chronopotentiometry, chronoamperometry and cyclic voltammetry. Presented results indicate that charge can be accumulated in the biofilm conductive network, that network conductivity does not represent a limit for current production and that both the steady state current and the amount of accumulated charge depend on the redox state of cytochromes wiring the cells to the electrode. A model of biofilm conduction is presented as well.
publishDate 2011
dc.date.none.fl_str_mv 2011-07-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/10310
Schrott, Germán David; Bonanni, Pablo Sebastian; Robuschi, Luciana; Esteve Nuñez, Abraham; Busalmen, Juan Pablo; Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens; Elsevier; Electrochimica Acta; 56; 28; 8-7-2011; 10791-10795
0013-4686
url http://hdl.handle.net/11336/10310
identifier_str_mv Schrott, Germán David; Bonanni, Pablo Sebastian; Robuschi, Luciana; Esteve Nuñez, Abraham; Busalmen, Juan Pablo; Electrochemical insight into the mechanism of electron transport in biofilms of Geobacter sulfurreducens; Elsevier; Electrochimica Acta; 56; 28; 8-7-2011; 10791-10795
0013-4686
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0013468611010115
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2011.07.001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842270169917816832
score 13.13397

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