Properties of AOT reverse micelle interfaces with different polar solvents

Autores
Luna, Maria Alejandra; Correa, Nestor Mariano; Silber, Juana J.; Falcone, Ruben Dario; Moyano, Fernando
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The behavior of polar solvents such as formamide, ethylene glycol, propylene glycol, glycerol, dimethylformamide (DMF), and dimethylacetamide (DMA), entrapped in n-heptane/sodium 1,4-bis-2-ethylhexylsulfosuccinate (AOT) reverse micelles (RMs) was investigated using absorption, emission, and the red edge excitation shift technique. We use the solvatochromism behavior of the hemycianine 4-(4-[dimethylamino]-styryl)-1-methylpyridinium iodide (HC) to investigate the physicochemical properties such as micropolarity, microviscosity, and hydrogen bond (H-bond) interaction in the non-aqueous RMs. Our results demonstrate that AOT surfactant interacts through H-bond with formamide, ethylene glycol, propylene glycol, and glycerol,and this interaction is responsible for weakening the electrostatic interaction between HC-AOT when entrapped in n-heptane/AOT RMs in absence of a polar solvent. On the other hand, when non-H-bond donor solvents (DMF and DMA) are incorporated inside the RMs, the structure of both pure solvents is destroyed upon encapsulation by the Na+-DMF or Na+-DMA interaction at Ws (Ws = [polar organic solvent]/[AOT]) ≤1.5. Our results show how the physicochemical properties, such as micropolarity, microviscosity, and H-bond interaction, of non-aqueous n-heptane/AOT RMs interfaces can be dramatically changed by simply using different non-aqueous polar solvent. Thus, these results can be very useful for employing these RMs, stabilizing enzymes, and using them as nanoreactors. Copyright © 2016 John Wiley & Sons, Ltd.
Fil: Luna, Maria Alejandra. 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
Fil: Silber, Juana J.. 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: Moyano, Fernando. 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
Aot
Hc
Microenvironment
Micropolarity
Non-Aqueous Reverse Micelles
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:11336/70847
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/70847
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Properties of AOT reverse micelle interfaces with different polar solventsLuna, Maria AlejandraCorrea, Nestor MarianoSilber, Juana J.Falcone, Ruben DarioMoyano, FernandoAotHcMicroenvironmentMicropolarityNon-Aqueous Reverse Micelleshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The behavior of polar solvents such as formamide, ethylene glycol, propylene glycol, glycerol, dimethylformamide (DMF), and dimethylacetamide (DMA), entrapped in n-heptane/sodium 1,4-bis-2-ethylhexylsulfosuccinate (AOT) reverse micelles (RMs) was investigated using absorption, emission, and the red edge excitation shift technique. We use the solvatochromism behavior of the hemycianine 4-(4-[dimethylamino]-styryl)-1-methylpyridinium iodide (HC) to investigate the physicochemical properties such as micropolarity, microviscosity, and hydrogen bond (H-bond) interaction in the non-aqueous RMs. Our results demonstrate that AOT surfactant interacts through H-bond with formamide, ethylene glycol, propylene glycol, and glycerol,and this interaction is responsible for weakening the electrostatic interaction between HC-AOT when entrapped in n-heptane/AOT RMs in absence of a polar solvent. On the other hand, when non-H-bond donor solvents (DMF and DMA) are incorporated inside the RMs, the structure of both pure solvents is destroyed upon encapsulation by the Na+-DMF or Na+-DMA interaction at Ws (Ws = [polar organic solvent]/[AOT]) ≤1.5. Our results show how the physicochemical properties, such as micropolarity, microviscosity, and H-bond interaction, of non-aqueous n-heptane/AOT RMs interfaces can be dramatically changed by simply using different non-aqueous polar solvent. Thus, these results can be very useful for employing these RMs, stabilizing enzymes, and using them as nanoreactors. Copyright © 2016 John Wiley & Sons, Ltd.Fil: Luna, Maria Alejandra. 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; ArgentinaFil: Silber, Juana J.. 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: Moyano, Fernando. 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; ArgentinaJohn Wiley & Sons Ltd2016-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/70847Luna, Maria Alejandra; Correa, Nestor Mariano; Silber, Juana J.; Falcone, Ruben Dario; Moyano, Fernando; Properties of AOT reverse micelle interfaces with different polar solvents; John Wiley & Sons Ltd; Journal Of Physical Organic Chemistry; 29; 11; 11-2016; 580-5850894-3230CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/poc.3535info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/poc.3535info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:47:55Zoai:ri.conicet.gov.ar:11336/70847instacron: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 09:47:55.999CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Properties of AOT reverse micelle interfaces with different polar solvents
title Properties of AOT reverse micelle interfaces with different polar solvents
spellingShingle Properties of AOT reverse micelle interfaces with different polar solvents
Luna, Maria Alejandra
Aot
Hc
Microenvironment
Micropolarity
Non-Aqueous Reverse Micelles
title_short Properties of AOT reverse micelle interfaces with different polar solvents
title_full Properties of AOT reverse micelle interfaces with different polar solvents
title_fullStr Properties of AOT reverse micelle interfaces with different polar solvents
title_full_unstemmed Properties of AOT reverse micelle interfaces with different polar solvents
title_sort Properties of AOT reverse micelle interfaces with different polar solvents
dc.creator.none.fl_str_mv Luna, Maria Alejandra
Correa, Nestor Mariano
Silber, Juana J.
Falcone, Ruben Dario
Moyano, Fernando
author Luna, Maria Alejandra
author_facet Luna, Maria Alejandra
Correa, Nestor Mariano
Silber, Juana J.
Falcone, Ruben Dario
Moyano, Fernando
author_role author
author2 Correa, Nestor Mariano
Silber, Juana J.
Falcone, Ruben Dario
Moyano, Fernando
author2_role author
author
author
author
dc.subject.none.fl_str_mv Aot
Hc
Microenvironment
Micropolarity
Non-Aqueous Reverse Micelles
topic Aot
Hc
Microenvironment
Micropolarity
Non-Aqueous Reverse Micelles
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 behavior of polar solvents such as formamide, ethylene glycol, propylene glycol, glycerol, dimethylformamide (DMF), and dimethylacetamide (DMA), entrapped in n-heptane/sodium 1,4-bis-2-ethylhexylsulfosuccinate (AOT) reverse micelles (RMs) was investigated using absorption, emission, and the red edge excitation shift technique. We use the solvatochromism behavior of the hemycianine 4-(4-[dimethylamino]-styryl)-1-methylpyridinium iodide (HC) to investigate the physicochemical properties such as micropolarity, microviscosity, and hydrogen bond (H-bond) interaction in the non-aqueous RMs. Our results demonstrate that AOT surfactant interacts through H-bond with formamide, ethylene glycol, propylene glycol, and glycerol,and this interaction is responsible for weakening the electrostatic interaction between HC-AOT when entrapped in n-heptane/AOT RMs in absence of a polar solvent. On the other hand, when non-H-bond donor solvents (DMF and DMA) are incorporated inside the RMs, the structure of both pure solvents is destroyed upon encapsulation by the Na+-DMF or Na+-DMA interaction at Ws (Ws = [polar organic solvent]/[AOT]) ≤1.5. Our results show how the physicochemical properties, such as micropolarity, microviscosity, and H-bond interaction, of non-aqueous n-heptane/AOT RMs interfaces can be dramatically changed by simply using different non-aqueous polar solvent. Thus, these results can be very useful for employing these RMs, stabilizing enzymes, and using them as nanoreactors. Copyright © 2016 John Wiley & Sons, Ltd.
Fil: Luna, Maria Alejandra. 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
Fil: Silber, Juana J.. 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: Moyano, Fernando. 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 The behavior of polar solvents such as formamide, ethylene glycol, propylene glycol, glycerol, dimethylformamide (DMF), and dimethylacetamide (DMA), entrapped in n-heptane/sodium 1,4-bis-2-ethylhexylsulfosuccinate (AOT) reverse micelles (RMs) was investigated using absorption, emission, and the red edge excitation shift technique. We use the solvatochromism behavior of the hemycianine 4-(4-[dimethylamino]-styryl)-1-methylpyridinium iodide (HC) to investigate the physicochemical properties such as micropolarity, microviscosity, and hydrogen bond (H-bond) interaction in the non-aqueous RMs. Our results demonstrate that AOT surfactant interacts through H-bond with formamide, ethylene glycol, propylene glycol, and glycerol,and this interaction is responsible for weakening the electrostatic interaction between HC-AOT when entrapped in n-heptane/AOT RMs in absence of a polar solvent. On the other hand, when non-H-bond donor solvents (DMF and DMA) are incorporated inside the RMs, the structure of both pure solvents is destroyed upon encapsulation by the Na+-DMF or Na+-DMA interaction at Ws (Ws = [polar organic solvent]/[AOT]) ≤1.5. Our results show how the physicochemical properties, such as micropolarity, microviscosity, and H-bond interaction, of non-aqueous n-heptane/AOT RMs interfaces can be dramatically changed by simply using different non-aqueous polar solvent. Thus, these results can be very useful for employing these RMs, stabilizing enzymes, and using them as nanoreactors. Copyright © 2016 John Wiley & Sons, Ltd.
publishDate 2016
dc.date.none.fl_str_mv 2016-11
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/11336/70847
Luna, Maria Alejandra; Correa, Nestor Mariano; Silber, Juana J.; Falcone, Ruben Dario; Moyano, Fernando; Properties of AOT reverse micelle interfaces with different polar solvents; John Wiley & Sons Ltd; Journal Of Physical Organic Chemistry; 29; 11; 11-2016; 580-585
0894-3230
CONICET Digital
CONICET
url http://hdl.handle.net/11336/70847
identifier_str_mv Luna, Maria Alejandra; Correa, Nestor Mariano; Silber, Juana J.; Falcone, Ruben Dario; Moyano, Fernando; Properties of AOT reverse micelle interfaces with different polar solvents; John Wiley & Sons Ltd; Journal Of Physical Organic Chemistry; 29; 11; 11-2016; 580-585
0894-3230
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/poc.3535
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/poc.3535
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 John Wiley & Sons Ltd
publisher.none.fl_str_mv John Wiley & Sons Ltd
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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