E coli Accumulation behind an Obstacle

Autores
Miño, Gastón Leonardo; Baabour, Magali Denise; Chertcoff, Ricardo Héctor; Gutkind, Gabriel Osvaldo; Clément, Eric; Auradou, Harold; Ippolito, Irene Paula
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper describes our findings regarding the accumulation of motile bacte-ria at the rear of a confined obstacle and the physical description of the me-chanisms at play. We found that the modification of flow due to the presence of the obstacle produces vorticity that favor the diffusion of bacteria towards the downstream stagnation point. By testing different flow rates, we deter-mined the range in which bacteria accumulate. More interestingly, we observe that hydrodynamic interaction between the bacteria and the top and bottom surface of the microfluidic chip maintain the bacteria in the region where the flow velocity is lower than their own velocity. In the case of non-motile bacte-ria, this effect is not observed because bacteria follow the streamlines as pas-sive tracers do.
Fil: Miño, Gastón Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Entre Ríos. Universidad Nacional de Entre Ríos. Centro de Investigaciones y Transferencia de Entre Ríos; Argentina
Fil: Baabour, Magali Denise. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Chertcoff, Ricardo Héctor. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Gutkind, Gabriel Osvaldo. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Clément, Eric. Centre National de la Recherche Scientifique; Francia
Fil: Auradou, Harold. Universite de Paris Xi. Laboratoire Automatiques et Systeme Thermiques; Francia
Fil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
E COLI
MOTILITY
FILTRATION
MICROFLUIDICS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/114223
Acceder
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network_name_str CONICET Digital (CONICET)
spelling E coli Accumulation behind an ObstacleMiño, Gastón LeonardoBaabour, Magali DeniseChertcoff, Ricardo HéctorGutkind, Gabriel OsvaldoClément, EricAuradou, HaroldIppolito, Irene PaulaE COLIMOTILITYFILTRATIONMICROFLUIDICShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1This paper describes our findings regarding the accumulation of motile bacte-ria at the rear of a confined obstacle and the physical description of the me-chanisms at play. We found that the modification of flow due to the presence of the obstacle produces vorticity that favor the diffusion of bacteria towards the downstream stagnation point. By testing different flow rates, we deter-mined the range in which bacteria accumulate. More interestingly, we observe that hydrodynamic interaction between the bacteria and the top and bottom surface of the microfluidic chip maintain the bacteria in the region where the flow velocity is lower than their own velocity. In the case of non-motile bacte-ria, this effect is not observed because bacteria follow the streamlines as pas-sive tracers do.Fil: Miño, Gastón Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Entre Ríos. Universidad Nacional de Entre Ríos. Centro de Investigaciones y Transferencia de Entre Ríos; ArgentinaFil: Baabour, Magali Denise. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; ArgentinaFil: Chertcoff, Ricardo Héctor. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; ArgentinaFil: Gutkind, Gabriel Osvaldo. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Clément, Eric. Centre National de la Recherche Scientifique; FranciaFil: Auradou, Harold. Universite de Paris Xi. Laboratoire Automatiques et Systeme Thermiques; FranciaFil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaScientific Research2018-06info: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/11336/114223Miño, Gastón Leonardo; Baabour, Magali Denise; Chertcoff, Ricardo Héctor; Gutkind, Gabriel Osvaldo; Clément, Eric; et al.; E coli Accumulation behind an Obstacle; Scientific Research; Advances in Microbiology; 8; 6; 6-2018; 451-4642165-34022165-3410CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.scirp.org/journal/paperinformation.aspx?paperid=85212info:eu-repo/semantics/altIdentifier/doi/10.4236/aim.2018.86030info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:59:43Zoai:ri.conicet.gov.ar:11336/114223instacron: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 09:59:43.999CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv E coli Accumulation behind an Obstacle
title E coli Accumulation behind an Obstacle
spellingShingle E coli Accumulation behind an Obstacle
Miño, Gastón Leonardo
E COLI
MOTILITY
FILTRATION
MICROFLUIDICS
title_short E coli Accumulation behind an Obstacle
title_full E coli Accumulation behind an Obstacle
title_fullStr E coli Accumulation behind an Obstacle
title_full_unstemmed E coli Accumulation behind an Obstacle
title_sort E coli Accumulation behind an Obstacle
dc.creator.none.fl_str_mv Miño, Gastón Leonardo
Baabour, Magali Denise
Chertcoff, Ricardo Héctor
Gutkind, Gabriel Osvaldo
Clément, Eric
Auradou, Harold
Ippolito, Irene Paula
author Miño, Gastón Leonardo
author_facet Miño, Gastón Leonardo
Baabour, Magali Denise
Chertcoff, Ricardo Héctor
Gutkind, Gabriel Osvaldo
Clément, Eric
Auradou, Harold
Ippolito, Irene Paula
author_role author
author2 Baabour, Magali Denise
Chertcoff, Ricardo Héctor
Gutkind, Gabriel Osvaldo
Clément, Eric
Auradou, Harold
Ippolito, Irene Paula
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv E COLI
MOTILITY
FILTRATION
MICROFLUIDICS
topic E COLI
MOTILITY
FILTRATION
MICROFLUIDICS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This paper describes our findings regarding the accumulation of motile bacte-ria at the rear of a confined obstacle and the physical description of the me-chanisms at play. We found that the modification of flow due to the presence of the obstacle produces vorticity that favor the diffusion of bacteria towards the downstream stagnation point. By testing different flow rates, we deter-mined the range in which bacteria accumulate. More interestingly, we observe that hydrodynamic interaction between the bacteria and the top and bottom surface of the microfluidic chip maintain the bacteria in the region where the flow velocity is lower than their own velocity. In the case of non-motile bacte-ria, this effect is not observed because bacteria follow the streamlines as pas-sive tracers do.
Fil: Miño, Gastón Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Entre Ríos. Universidad Nacional de Entre Ríos. Centro de Investigaciones y Transferencia de Entre Ríos; Argentina
Fil: Baabour, Magali Denise. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Chertcoff, Ricardo Héctor. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Gutkind, Gabriel Osvaldo. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Clément, Eric. Centre National de la Recherche Scientifique; Francia
Fil: Auradou, Harold. Universite de Paris Xi. Laboratoire Automatiques et Systeme Thermiques; Francia
Fil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description This paper describes our findings regarding the accumulation of motile bacte-ria at the rear of a confined obstacle and the physical description of the me-chanisms at play. We found that the modification of flow due to the presence of the obstacle produces vorticity that favor the diffusion of bacteria towards the downstream stagnation point. By testing different flow rates, we deter-mined the range in which bacteria accumulate. More interestingly, we observe that hydrodynamic interaction between the bacteria and the top and bottom surface of the microfluidic chip maintain the bacteria in the region where the flow velocity is lower than their own velocity. In the case of non-motile bacte-ria, this effect is not observed because bacteria follow the streamlines as pas-sive tracers do.
publishDate 2018
dc.date.none.fl_str_mv 2018-06
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/11336/114223
Miño, Gastón Leonardo; Baabour, Magali Denise; Chertcoff, Ricardo Héctor; Gutkind, Gabriel Osvaldo; Clément, Eric; et al.; E coli Accumulation behind an Obstacle; Scientific Research; Advances in Microbiology; 8; 6; 6-2018; 451-464
2165-3402
2165-3410
CONICET Digital
CONICET
url http://hdl.handle.net/11336/114223
identifier_str_mv Miño, Gastón Leonardo; Baabour, Magali Denise; Chertcoff, Ricardo Héctor; Gutkind, Gabriel Osvaldo; Clément, Eric; et al.; E coli Accumulation behind an Obstacle; Scientific Research; Advances in Microbiology; 8; 6; 6-2018; 451-464
2165-3402
2165-3410
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.scirp.org/journal/paperinformation.aspx?paperid=85212
info:eu-repo/semantics/altIdentifier/doi/10.4236/aim.2018.86030
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Scientific Research
publisher.none.fl_str_mv Scientific Research
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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