Short-time diffusion of charge-stabilized colloidal particles: generic features

Autores
Heinen, Marco; Holmqvist, Peter; Banchio, Adolfo Javier; Nägele, Gerhard
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Analytical theory and Stokesian dynamics simulations are used in conjunction with dynamic light scattering to investigate the role of hydrodynamic interactions in short-time diffusion in suspensions of charge-stabilized colloidal particles. The particles are modeled as solvent-impermeable charged spheres, repelling each other via a screened Coulomb potential. Numerical results for self-diffusion and sedimentation coefficients, as well as hydrodynamic and shorttime diffusion functions, are compared with experimental data for a wide range of volume fractions. The theoretical predictions for the generic behavior of short-time properties obtained from this model are shown to be in full accord with experimental data. In addition, the effects of microion kinetics, nonzero particle porosity and residual attractive forces on the form of the hydrodynamic function are estimated. This serves to rule out possible causes for the strikingly small hydrodynamic function values determined in certain synchrotron radiation experiments.
Fil: Heinen, Marco. Institut fur Festkorperforschung; Alemania
Fil: Holmqvist, Peter. Institut fur Festkorperforschung; Alemania
Fil: Banchio, Adolfo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Nägele, Gerhard. Institut fur Festkorperforschung; Alemania
Materia
suspensiones coloidales
difusion a tiempos cortos
funcion hidrodinamica
simulaciones
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:11336/277479
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Short-time diffusion of charge-stabilized colloidal particles: generic featuresHeinen, MarcoHolmqvist, PeterBanchio, Adolfo JavierNägele, Gerhardsuspensiones coloidalesdifusion a tiempos cortosfuncion hidrodinamicasimulacioneshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Analytical theory and Stokesian dynamics simulations are used in conjunction with dynamic light scattering to investigate the role of hydrodynamic interactions in short-time diffusion in suspensions of charge-stabilized colloidal particles. The particles are modeled as solvent-impermeable charged spheres, repelling each other via a screened Coulomb potential. Numerical results for self-diffusion and sedimentation coefficients, as well as hydrodynamic and shorttime diffusion functions, are compared with experimental data for a wide range of volume fractions. The theoretical predictions for the generic behavior of short-time properties obtained from this model are shown to be in full accord with experimental data. In addition, the effects of microion kinetics, nonzero particle porosity and residual attractive forces on the form of the hydrodynamic function are estimated. This serves to rule out possible causes for the strikingly small hydrodynamic function values determined in certain synchrotron radiation experiments.Fil: Heinen, Marco. Institut fur Festkorperforschung; AlemaniaFil: Holmqvist, Peter. Institut fur Festkorperforschung; AlemaniaFil: Banchio, Adolfo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Nägele, Gerhard. Institut fur Festkorperforschung; AlemaniaWiley Blackwell Publishing, Inc2010-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/277479Heinen, Marco; Holmqvist, Peter; Banchio, Adolfo Javier; Nägele, Gerhard; Short-time diffusion of charge-stabilized colloidal particles: generic features; Wiley Blackwell Publishing, Inc; Journal Of Applied Crystallography; 43; 5; 10-2010; 970-9800021-8898CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1107/S002188981002724Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-23T13:40:09Zoai:ri.conicet.gov.ar:11336/277479instacron: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:34982025-12-23 13:40:10.225CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Short-time diffusion of charge-stabilized colloidal particles: generic features
title Short-time diffusion of charge-stabilized colloidal particles: generic features
spellingShingle Short-time diffusion of charge-stabilized colloidal particles: generic features
Heinen, Marco
suspensiones coloidales
difusion a tiempos cortos
funcion hidrodinamica
simulaciones
title_short Short-time diffusion of charge-stabilized colloidal particles: generic features
title_full Short-time diffusion of charge-stabilized colloidal particles: generic features
title_fullStr Short-time diffusion of charge-stabilized colloidal particles: generic features
title_full_unstemmed Short-time diffusion of charge-stabilized colloidal particles: generic features
title_sort Short-time diffusion of charge-stabilized colloidal particles: generic features
dc.creator.none.fl_str_mv Heinen, Marco
Holmqvist, Peter
Banchio, Adolfo Javier
Nägele, Gerhard
author Heinen, Marco
author_facet Heinen, Marco
Holmqvist, Peter
Banchio, Adolfo Javier
Nägele, Gerhard
author_role author
author2 Holmqvist, Peter
Banchio, Adolfo Javier
Nägele, Gerhard
author2_role author
author
author
dc.subject.none.fl_str_mv suspensiones coloidales
difusion a tiempos cortos
funcion hidrodinamica
simulaciones
topic suspensiones coloidales
difusion a tiempos cortos
funcion hidrodinamica
simulaciones
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Analytical theory and Stokesian dynamics simulations are used in conjunction with dynamic light scattering to investigate the role of hydrodynamic interactions in short-time diffusion in suspensions of charge-stabilized colloidal particles. The particles are modeled as solvent-impermeable charged spheres, repelling each other via a screened Coulomb potential. Numerical results for self-diffusion and sedimentation coefficients, as well as hydrodynamic and shorttime diffusion functions, are compared with experimental data for a wide range of volume fractions. The theoretical predictions for the generic behavior of short-time properties obtained from this model are shown to be in full accord with experimental data. In addition, the effects of microion kinetics, nonzero particle porosity and residual attractive forces on the form of the hydrodynamic function are estimated. This serves to rule out possible causes for the strikingly small hydrodynamic function values determined in certain synchrotron radiation experiments.
Fil: Heinen, Marco. Institut fur Festkorperforschung; Alemania
Fil: Holmqvist, Peter. Institut fur Festkorperforschung; Alemania
Fil: Banchio, Adolfo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Nägele, Gerhard. Institut fur Festkorperforschung; Alemania
description Analytical theory and Stokesian dynamics simulations are used in conjunction with dynamic light scattering to investigate the role of hydrodynamic interactions in short-time diffusion in suspensions of charge-stabilized colloidal particles. The particles are modeled as solvent-impermeable charged spheres, repelling each other via a screened Coulomb potential. Numerical results for self-diffusion and sedimentation coefficients, as well as hydrodynamic and shorttime diffusion functions, are compared with experimental data for a wide range of volume fractions. The theoretical predictions for the generic behavior of short-time properties obtained from this model are shown to be in full accord with experimental data. In addition, the effects of microion kinetics, nonzero particle porosity and residual attractive forces on the form of the hydrodynamic function are estimated. This serves to rule out possible causes for the strikingly small hydrodynamic function values determined in certain synchrotron radiation experiments.
publishDate 2010
dc.date.none.fl_str_mv 2010-10
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/11336/277479
Heinen, Marco; Holmqvist, Peter; Banchio, Adolfo Javier; Nägele, Gerhard; Short-time diffusion of charge-stabilized colloidal particles: generic features; Wiley Blackwell Publishing, Inc; Journal Of Applied Crystallography; 43; 5; 10-2010; 970-980
0021-8898
CONICET Digital
CONICET
url http://hdl.handle.net/11336/277479
identifier_str_mv Heinen, Marco; Holmqvist, Peter; Banchio, Adolfo Javier; Nägele, Gerhard; Short-time diffusion of charge-stabilized colloidal particles: generic features; Wiley Blackwell Publishing, Inc; Journal Of Applied Crystallography; 43; 5; 10-2010; 970-980
0021-8898
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1107/S002188981002724X
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
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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 12.952241

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