Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces

Autores
Bonales, Laura J.; Rubio, J. E. F.; Ritacco, Hernán Alejandro; Vega, C.; Rubio, Ramón G.; Ortega, Francisco
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The structure and the interaction potential of monolayers of charged polystyrene microparticles at fluid interfaces have been studied by optical microscopy. Microparticles of different sizes have been studied over a broad range of surface particle densities. The structural characterization is based on the analysis of images obtained by digital optical microscopy. From the experimental images, radial distribution functions, hexagonal bond order correlation functions, and temporal orientational correlation functions have been calculated for different monolayer states at both the air/water and oil/water interfaces. The interaction potential has been calculated from the structure factor using integral equations within the hypernetted chain closure relationship. For particles trapped at the oil-water interface, it was found that, upon increasing the surface coverage, a freezing transition occurs, that leads to the formation of a 2D crystalline structure. We have studied the freezing densities of particle monolayers at the oil/water interface and compared them with Monte Carlo simulation results reported by H. Löwen. In contrast, at the air-water interface, freezing is inhibited due to the formation of particle aggregates. © 2011 American Chemical Society.
Fil: Bonales, Laura J.. Universidad Complutense de Madrid; España
Fil: Rubio, J. E. F.. Universidad Complutense de Madrid; España
Fil: Ritacco, Hernán Alejandro. Universidad Complutense de Madrid; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Vega, C.. Universidad Complutense de Madrid; España
Fil: Rubio, Ramón G.. Universidad Complutense de Madrid; España
Fil: Ortega, Francisco. Universidad Complutense de Madrid; España
Materia
Particles at Interfaces
Ktnhy
Surface Phase Transitions
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:11336/67776
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Freezing transition and interaction potential in monolayers of microparticles at fluid interfacesBonales, Laura J.Rubio, J. E. F.Ritacco, Hernán AlejandroVega, C.Rubio, Ramón G.Ortega, FranciscoParticles at InterfacesKtnhySurface Phase Transitionshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The structure and the interaction potential of monolayers of charged polystyrene microparticles at fluid interfaces have been studied by optical microscopy. Microparticles of different sizes have been studied over a broad range of surface particle densities. The structural characterization is based on the analysis of images obtained by digital optical microscopy. From the experimental images, radial distribution functions, hexagonal bond order correlation functions, and temporal orientational correlation functions have been calculated for different monolayer states at both the air/water and oil/water interfaces. The interaction potential has been calculated from the structure factor using integral equations within the hypernetted chain closure relationship. For particles trapped at the oil-water interface, it was found that, upon increasing the surface coverage, a freezing transition occurs, that leads to the formation of a 2D crystalline structure. We have studied the freezing densities of particle monolayers at the oil/water interface and compared them with Monte Carlo simulation results reported by H. Löwen. In contrast, at the air-water interface, freezing is inhibited due to the formation of particle aggregates. © 2011 American Chemical Society.Fil: Bonales, Laura J.. Universidad Complutense de Madrid; EspañaFil: Rubio, J. E. F.. Universidad Complutense de Madrid; EspañaFil: Ritacco, Hernán Alejandro. Universidad Complutense de Madrid; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Vega, C.. Universidad Complutense de Madrid; EspañaFil: Rubio, Ramón G.. Universidad Complutense de Madrid; EspañaFil: Ortega, Francisco. Universidad Complutense de Madrid; EspañaAmerican Chemical Society2011-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/67776Bonales, Laura J.; Rubio, J. E. F.; Ritacco, Hernán Alejandro; Vega, C.; Rubio, Ramón G.; et al.; Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces; American Chemical Society; Langmuir; 27; 7; 4-2011; 3391-34000743-7463CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/la104917einfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/la104917einfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:07:32Zoai:ri.conicet.gov.ar:11336/67776instacron: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:34982025-09-29 10:07:32.798CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces
title Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces
spellingShingle Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces
Bonales, Laura J.
Particles at Interfaces
Ktnhy
Surface Phase Transitions
title_short Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces
title_full Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces
title_fullStr Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces
title_full_unstemmed Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces
title_sort Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces
dc.creator.none.fl_str_mv Bonales, Laura J.
Rubio, J. E. F.
Ritacco, Hernán Alejandro
Vega, C.
Rubio, Ramón G.
Ortega, Francisco
author Bonales, Laura J.
author_facet Bonales, Laura J.
Rubio, J. E. F.
Ritacco, Hernán Alejandro
Vega, C.
Rubio, Ramón G.
Ortega, Francisco
author_role author
author2 Rubio, J. E. F.
Ritacco, Hernán Alejandro
Vega, C.
Rubio, Ramón G.
Ortega, Francisco
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Particles at Interfaces
Ktnhy
Surface Phase Transitions
topic Particles at Interfaces
Ktnhy
Surface Phase Transitions
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The structure and the interaction potential of monolayers of charged polystyrene microparticles at fluid interfaces have been studied by optical microscopy. Microparticles of different sizes have been studied over a broad range of surface particle densities. The structural characterization is based on the analysis of images obtained by digital optical microscopy. From the experimental images, radial distribution functions, hexagonal bond order correlation functions, and temporal orientational correlation functions have been calculated for different monolayer states at both the air/water and oil/water interfaces. The interaction potential has been calculated from the structure factor using integral equations within the hypernetted chain closure relationship. For particles trapped at the oil-water interface, it was found that, upon increasing the surface coverage, a freezing transition occurs, that leads to the formation of a 2D crystalline structure. We have studied the freezing densities of particle monolayers at the oil/water interface and compared them with Monte Carlo simulation results reported by H. Löwen. In contrast, at the air-water interface, freezing is inhibited due to the formation of particle aggregates. © 2011 American Chemical Society.
Fil: Bonales, Laura J.. Universidad Complutense de Madrid; España
Fil: Rubio, J. E. F.. Universidad Complutense de Madrid; España
Fil: Ritacco, Hernán Alejandro. Universidad Complutense de Madrid; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Vega, C.. Universidad Complutense de Madrid; España
Fil: Rubio, Ramón G.. Universidad Complutense de Madrid; España
Fil: Ortega, Francisco. Universidad Complutense de Madrid; España
description The structure and the interaction potential of monolayers of charged polystyrene microparticles at fluid interfaces have been studied by optical microscopy. Microparticles of different sizes have been studied over a broad range of surface particle densities. The structural characterization is based on the analysis of images obtained by digital optical microscopy. From the experimental images, radial distribution functions, hexagonal bond order correlation functions, and temporal orientational correlation functions have been calculated for different monolayer states at both the air/water and oil/water interfaces. The interaction potential has been calculated from the structure factor using integral equations within the hypernetted chain closure relationship. For particles trapped at the oil-water interface, it was found that, upon increasing the surface coverage, a freezing transition occurs, that leads to the formation of a 2D crystalline structure. We have studied the freezing densities of particle monolayers at the oil/water interface and compared them with Monte Carlo simulation results reported by H. Löwen. In contrast, at the air-water interface, freezing is inhibited due to the formation of particle aggregates. © 2011 American Chemical Society.
publishDate 2011
dc.date.none.fl_str_mv 2011-04
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/11336/67776
Bonales, Laura J.; Rubio, J. E. F.; Ritacco, Hernán Alejandro; Vega, C.; Rubio, Ramón G.; et al.; Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces; American Chemical Society; Langmuir; 27; 7; 4-2011; 3391-3400
0743-7463
CONICET Digital
CONICET
url http://hdl.handle.net/11336/67776
identifier_str_mv Bonales, Laura J.; Rubio, J. E. F.; Ritacco, Hernán Alejandro; Vega, C.; Rubio, Ramón G.; et al.; Freezing transition and interaction potential in monolayers of microparticles at fluid interfaces; American Chemical Society; Langmuir; 27; 7; 4-2011; 3391-3400
0743-7463
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/la104917e
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/la104917e
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 American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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 13.070432

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