Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties

Autores
Quintana Lazópulos, Silvina Soledad; Falcone, Ruben Dario; Chessa, Juana Josefa; Correa, Nestor Mariano
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work we have revisited the water/sodium bis-(2-ethylhexyl) phosphate (NaDEHP) reverse micelle system using, for the first time, molecular probes in order to investigate valuable interface properties. We have studied the solvatochromic behavior of 1-methyl-8-oxyquinolinum betaine (QB) and 6-propionyl-2-(N,N-dimethyl) aminonaphthalene (PRODAN) in water/NaDEHP/toluene system and, the results were compared with those obtained in water/sodium 1,4-bis-2-ethylhexylsulfosuccinate (AOT)/toluene reversed micelles media. We have used absorption spectroscopy for QB and, absorption and emission spectroscopy for PRODAN. We choose those molecular probes because of they are sensitive to different effects thus we have obtained very significant information on the reversed micelles media. Our results demonstrate that because of the different water ? surfactant interactions the micropolarity, microviscosity, interfacial water structure, molecular probes partition and intramolecular electron transfer processes are dramatically altered for NaDEHP reversed micelles interfaces in comparison to the AOT systems. Because of the aromatic organic non polar solvent penetration to the interface, NaDEHP reversed micellar media offers an interface with lower micropolarity and microviscosity than AOT media. Also, the interfacial water in the NaDEHP system shows enhanced water-water hydrogen bond interaction in comparison with bulk water. The differences were manifested when these RMs interfaces were used to control from which excited state PRODAN can emit. AOT RMs interface represents the unique environment for PRODAN to undergo dual emission.
Fil: Quintana Lazópulos, Silvina Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Falcone, Ruben Dario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Chessa, Juana Josefa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Correa, Nestor Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Materia
NaDEHP
NANOSCIENCE
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:11336/247314
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/247314
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial PropertiesQuintana Lazópulos, Silvina SoledadFalcone, Ruben DarioChessa, Juana JosefaCorrea, Nestor MarianoNaDEHPNANOSCIENCEhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this work we have revisited the water/sodium bis-(2-ethylhexyl) phosphate (NaDEHP) reverse micelle system using, for the first time, molecular probes in order to investigate valuable interface properties. We have studied the solvatochromic behavior of 1-methyl-8-oxyquinolinum betaine (QB) and 6-propionyl-2-(N,N-dimethyl) aminonaphthalene (PRODAN) in water/NaDEHP/toluene system and, the results were compared with those obtained in water/sodium 1,4-bis-2-ethylhexylsulfosuccinate (AOT)/toluene reversed micelles media. We have used absorption spectroscopy for QB and, absorption and emission spectroscopy for PRODAN. We choose those molecular probes because of they are sensitive to different effects thus we have obtained very significant information on the reversed micelles media. Our results demonstrate that because of the different water ? surfactant interactions the micropolarity, microviscosity, interfacial water structure, molecular probes partition and intramolecular electron transfer processes are dramatically altered for NaDEHP reversed micelles interfaces in comparison to the AOT systems. Because of the aromatic organic non polar solvent penetration to the interface, NaDEHP reversed micellar media offers an interface with lower micropolarity and microviscosity than AOT media. Also, the interfacial water in the NaDEHP system shows enhanced water-water hydrogen bond interaction in comparison with bulk water. The differences were manifested when these RMs interfaces were used to control from which excited state PRODAN can emit. AOT RMs interface represents the unique environment for PRODAN to undergo dual emission.Fil: Quintana Lazópulos, Silvina Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Falcone, Ruben Dario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Chessa, Juana Josefa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Correa, Nestor Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaWiley VCH Verlag2011-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/247314Quintana Lazópulos, Silvina Soledad; Falcone, Ruben Dario; Chessa, Juana Josefa; Correa, Nestor Mariano; Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties; Wiley VCH Verlag; Chemphyschem; 13; 1; 12-2011; 115-1231439-4235CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/cphc.201100638info:eu-repo/semantics/altIdentifier/doi/10.1002/cphc.201100638info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:10:59Zoai:ri.conicet.gov.ar:11336/247314instacron: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 10:11:00.113CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties
title Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties
spellingShingle Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties
Quintana Lazópulos, Silvina Soledad
NaDEHP
NANOSCIENCE
title_short Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties
title_full Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties
title_fullStr Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties
title_full_unstemmed Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties
title_sort Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties
dc.creator.none.fl_str_mv Quintana Lazópulos, Silvina Soledad
Falcone, Ruben Dario
Chessa, Juana Josefa
Correa, Nestor Mariano
author Quintana Lazópulos, Silvina Soledad
author_facet Quintana Lazópulos, Silvina Soledad
Falcone, Ruben Dario
Chessa, Juana Josefa
Correa, Nestor Mariano
author_role author
author2 Falcone, Ruben Dario
Chessa, Juana Josefa
Correa, Nestor Mariano
author2_role author
author
author
dc.subject.none.fl_str_mv NaDEHP
NANOSCIENCE
topic NaDEHP
NANOSCIENCE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work we have revisited the water/sodium bis-(2-ethylhexyl) phosphate (NaDEHP) reverse micelle system using, for the first time, molecular probes in order to investigate valuable interface properties. We have studied the solvatochromic behavior of 1-methyl-8-oxyquinolinum betaine (QB) and 6-propionyl-2-(N,N-dimethyl) aminonaphthalene (PRODAN) in water/NaDEHP/toluene system and, the results were compared with those obtained in water/sodium 1,4-bis-2-ethylhexylsulfosuccinate (AOT)/toluene reversed micelles media. We have used absorption spectroscopy for QB and, absorption and emission spectroscopy for PRODAN. We choose those molecular probes because of they are sensitive to different effects thus we have obtained very significant information on the reversed micelles media. Our results demonstrate that because of the different water ? surfactant interactions the micropolarity, microviscosity, interfacial water structure, molecular probes partition and intramolecular electron transfer processes are dramatically altered for NaDEHP reversed micelles interfaces in comparison to the AOT systems. Because of the aromatic organic non polar solvent penetration to the interface, NaDEHP reversed micellar media offers an interface with lower micropolarity and microviscosity than AOT media. Also, the interfacial water in the NaDEHP system shows enhanced water-water hydrogen bond interaction in comparison with bulk water. The differences were manifested when these RMs interfaces were used to control from which excited state PRODAN can emit. AOT RMs interface represents the unique environment for PRODAN to undergo dual emission.
Fil: Quintana Lazópulos, Silvina Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Falcone, Ruben Dario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Chessa, Juana Josefa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Correa, Nestor Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
description In this work we have revisited the water/sodium bis-(2-ethylhexyl) phosphate (NaDEHP) reverse micelle system using, for the first time, molecular probes in order to investigate valuable interface properties. We have studied the solvatochromic behavior of 1-methyl-8-oxyquinolinum betaine (QB) and 6-propionyl-2-(N,N-dimethyl) aminonaphthalene (PRODAN) in water/NaDEHP/toluene system and, the results were compared with those obtained in water/sodium 1,4-bis-2-ethylhexylsulfosuccinate (AOT)/toluene reversed micelles media. We have used absorption spectroscopy for QB and, absorption and emission spectroscopy for PRODAN. We choose those molecular probes because of they are sensitive to different effects thus we have obtained very significant information on the reversed micelles media. Our results demonstrate that because of the different water ? surfactant interactions the micropolarity, microviscosity, interfacial water structure, molecular probes partition and intramolecular electron transfer processes are dramatically altered for NaDEHP reversed micelles interfaces in comparison to the AOT systems. Because of the aromatic organic non polar solvent penetration to the interface, NaDEHP reversed micellar media offers an interface with lower micropolarity and microviscosity than AOT media. Also, the interfacial water in the NaDEHP system shows enhanced water-water hydrogen bond interaction in comparison with bulk water. The differences were manifested when these RMs interfaces were used to control from which excited state PRODAN can emit. AOT RMs interface represents the unique environment for PRODAN to undergo dual emission.
publishDate 2011
dc.date.none.fl_str_mv 2011-12
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/11336/247314
Quintana Lazópulos, Silvina Soledad; Falcone, Ruben Dario; Chessa, Juana Josefa; Correa, Nestor Mariano; Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties; Wiley VCH Verlag; Chemphyschem; 13; 1; 12-2011; 115-123
1439-4235
CONICET Digital
CONICET
url http://hdl.handle.net/11336/247314
identifier_str_mv Quintana Lazópulos, Silvina Soledad; Falcone, Ruben Dario; Chessa, Juana Josefa; Correa, Nestor Mariano; Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties; Wiley VCH Verlag; Chemphyschem; 13; 1; 12-2011; 115-123
1439-4235
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://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/cphc.201100638
info:eu-repo/semantics/altIdentifier/doi/10.1002/cphc.201100638
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley VCH Verlag
publisher.none.fl_str_mv Wiley VCH Verlag
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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