Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens

Autores
Maestro, Beatríz; Ortíz, Juan Manuel; Schrott, Germán David; Busalmen, Juan Pablo; Climent, Victor; Feliu, Juan Miguel
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have investigated the influence of electrode material and crystallographic structure on electron transfer and biofilm formation of Geobacter sulfurreducens. Single-crystal gold—Au(110), Au(111), Au(210)—and platinum—Pt(100), Pt(110), Pt(111), Pt(210)—electrodes were tested and compared to graphite rods. G. sulfurreducens electrochemically interacts with all these materials with different attachment kinetics and final current production, although redox species involved in the electron transfer to the anode are virtually the same in all cases. Initial bacterial colonization was fastest on graphite up to the monolayer level, whereas gold electrodes led to higher final current densities. Crystal geometry was shown to have an important influence, with Au(210) sustaining a current density of up to 1442 ± 101 μA cm− 2 at the steady state, over Au(111) with 961 ± 94 μA cm− 2 and Au(110) with 944 ± 89 μA cm− 2. On the other hand, the platinum electrodes displayed the lowest performances, including Pt(210). Our results indicate that both crystal geometry and electrode material are key parameters for the efficient interaction of bacteria with the substrate and should be considered for the design of novel materials and microbial devices to optimize energy production.
Fil: Maestro, Beatríz. Instituto Universitario de Electroquímica. Universidad de Alicant; España
Fil: Ortíz, Juan Manuel. Instituto Universitario de Electroquímica. Universidad de Alicant; España
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: 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
Fil: Climent, Victor. Instituto Universitario de Electroquímica. Universidad de Alicant; España
Fil: Feliu, Juan Miguel. Instituto Universitario de Electroquímica. Universidad de Alicant; España
Materia
Geobacter
Biofilms
Single-Crystal Electrode
Electron Transport
Cytochrome
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:11336/5360
Acceder
id CONICETDig_1b9b0e54d3be580384f538ba2c6d74ab
oai_identifier_str oai:ri.conicet.gov.ar:11336/5360
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducensMaestro, BeatrízOrtíz, Juan ManuelSchrott, Germán DavidBusalmen, Juan PabloCliment, VictorFeliu, Juan MiguelGeobacterBiofilmsSingle-Crystal ElectrodeElectron TransportCytochromehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1We have investigated the influence of electrode material and crystallographic structure on electron transfer and biofilm formation of Geobacter sulfurreducens. Single-crystal gold—Au(110), Au(111), Au(210)—and platinum—Pt(100), Pt(110), Pt(111), Pt(210)—electrodes were tested and compared to graphite rods. G. sulfurreducens electrochemically interacts with all these materials with different attachment kinetics and final current production, although redox species involved in the electron transfer to the anode are virtually the same in all cases. Initial bacterial colonization was fastest on graphite up to the monolayer level, whereas gold electrodes led to higher final current densities. Crystal geometry was shown to have an important influence, with Au(210) sustaining a current density of up to 1442 ± 101 μA cm− 2 at the steady state, over Au(111) with 961 ± 94 μA cm− 2 and Au(110) with 944 ± 89 μA cm− 2. On the other hand, the platinum electrodes displayed the lowest performances, including Pt(210). Our results indicate that both crystal geometry and electrode material are key parameters for the efficient interaction of bacteria with the substrate and should be considered for the design of novel materials and microbial devices to optimize energy production.Fil: Maestro, Beatríz. Instituto Universitario de Electroquímica. Universidad de Alicant; EspañaFil: Ortíz, Juan Manuel. Instituto Universitario de Electroquímica. Universidad de Alicant; EspañaFil: 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: 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; ArgentinaFil: Climent, Victor. Instituto Universitario de Electroquímica. Universidad de Alicant; EspañaFil: Feliu, Juan Miguel. Instituto Universitario de Electroquímica. Universidad de Alicant; EspañaElsevier2014-02-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5360Maestro, Beatríz; Ortíz, Juan Manuel; Schrott, Germán David; Busalmen, Juan Pablo; Climent, Victor; et al.; Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens; Elsevier; Bioelectrochemistry; 98; 25-2-2014; 11-191567-5394enginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/issn/1567-5394info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1567539414000358info:eu-repo/semantics/altIdentifier/doi/10.1016/j.bioelechem.2014.02.001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:28Zoai:ri.conicet.gov.ar:11336/5360instacron: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 09:45:29.243CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens
title Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens
spellingShingle Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens
Maestro, Beatríz
Geobacter
Biofilms
Single-Crystal Electrode
Electron Transport
Cytochrome
title_short Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens
title_full Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens
title_fullStr Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens
title_full_unstemmed Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens
title_sort Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens
dc.creator.none.fl_str_mv Maestro, Beatríz
Ortíz, Juan Manuel
Schrott, Germán David
Busalmen, Juan Pablo
Climent, Victor
Feliu, Juan Miguel
author Maestro, Beatríz
author_facet Maestro, Beatríz
Ortíz, Juan Manuel
Schrott, Germán David
Busalmen, Juan Pablo
Climent, Victor
Feliu, Juan Miguel
author_role author
author2 Ortíz, Juan Manuel
Schrott, Germán David
Busalmen, Juan Pablo
Climent, Victor
Feliu, Juan Miguel
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Geobacter
Biofilms
Single-Crystal Electrode
Electron Transport
Cytochrome
topic Geobacter
Biofilms
Single-Crystal Electrode
Electron Transport
Cytochrome
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We have investigated the influence of electrode material and crystallographic structure on electron transfer and biofilm formation of Geobacter sulfurreducens. Single-crystal gold—Au(110), Au(111), Au(210)—and platinum—Pt(100), Pt(110), Pt(111), Pt(210)—electrodes were tested and compared to graphite rods. G. sulfurreducens electrochemically interacts with all these materials with different attachment kinetics and final current production, although redox species involved in the electron transfer to the anode are virtually the same in all cases. Initial bacterial colonization was fastest on graphite up to the monolayer level, whereas gold electrodes led to higher final current densities. Crystal geometry was shown to have an important influence, with Au(210) sustaining a current density of up to 1442 ± 101 μA cm− 2 at the steady state, over Au(111) with 961 ± 94 μA cm− 2 and Au(110) with 944 ± 89 μA cm− 2. On the other hand, the platinum electrodes displayed the lowest performances, including Pt(210). Our results indicate that both crystal geometry and electrode material are key parameters for the efficient interaction of bacteria with the substrate and should be considered for the design of novel materials and microbial devices to optimize energy production.
Fil: Maestro, Beatríz. Instituto Universitario de Electroquímica. Universidad de Alicant; España
Fil: Ortíz, Juan Manuel. Instituto Universitario de Electroquímica. Universidad de Alicant; España
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: 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
Fil: Climent, Victor. Instituto Universitario de Electroquímica. Universidad de Alicant; España
Fil: Feliu, Juan Miguel. Instituto Universitario de Electroquímica. Universidad de Alicant; España
description We have investigated the influence of electrode material and crystallographic structure on electron transfer and biofilm formation of Geobacter sulfurreducens. Single-crystal gold—Au(110), Au(111), Au(210)—and platinum—Pt(100), Pt(110), Pt(111), Pt(210)—electrodes were tested and compared to graphite rods. G. sulfurreducens electrochemically interacts with all these materials with different attachment kinetics and final current production, although redox species involved in the electron transfer to the anode are virtually the same in all cases. Initial bacterial colonization was fastest on graphite up to the monolayer level, whereas gold electrodes led to higher final current densities. Crystal geometry was shown to have an important influence, with Au(210) sustaining a current density of up to 1442 ± 101 μA cm− 2 at the steady state, over Au(111) with 961 ± 94 μA cm− 2 and Au(110) with 944 ± 89 μA cm− 2. On the other hand, the platinum electrodes displayed the lowest performances, including Pt(210). Our results indicate that both crystal geometry and electrode material are key parameters for the efficient interaction of bacteria with the substrate and should be considered for the design of novel materials and microbial devices to optimize energy production.
publishDate 2014
dc.date.none.fl_str_mv 2014-02-25
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/11336/5360
Maestro, Beatríz; Ortíz, Juan Manuel; Schrott, Germán David; Busalmen, Juan Pablo; Climent, Victor; et al.; Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens; Elsevier; Bioelectrochemistry; 98; 25-2-2014; 11-19
1567-5394
url http://hdl.handle.net/11336/5360
identifier_str_mv Maestro, Beatríz; Ortíz, Juan Manuel; Schrott, Germán David; Busalmen, Juan Pablo; Climent, Victor; et al.; Crystallographic orientation and electrode nature are key factors for electric current generation by Geobacter sulfurreducens; Elsevier; Bioelectrochemistry; 98; 25-2-2014; 11-19
1567-5394
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/issn/1567-5394
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1567539414000358
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.bioelechem.2014.02.001
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
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
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score 13.13397

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