Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature
- Autores
- Arnould, Audrey; Perez, Adrián Alejandro; Gaillard, Cédric; Douliez, Jean Paul; Cousin, Fabrice; Santiago, Liliana Gabriela; Zemb, Thomas; Anton, Marc; Fameau, Anne Laure
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Salt-free catanionic systems based on fatty acids and cationic surfactants are known to exhibit a broad polymorphism by simply tuning the molar ratio between the two components. In the case of fatty acid combined with organic amino counter-ions, very few data are available on the phase behavior obtained as a function of the molar ratio between the counter-ion and the fatty acid. In this study, we investigated the choline hydroxide/myristic acid system as a function of the molar ratio, R= n choline hydroxide/n myristic acid, and the temperature. At molecular scale, the ionization state of myristic acid was determined as a function of R by coupling pH, conductivity and infra-red spectroscopy measurements. At microscopic scale, the self-assemblies were characterized by small angle neutron scattering and microscopy experiments.For R<1, we showed that the two forms of myristic acid molecules (ionized and protonated)coexisted leading to the formation of facetted objects (vesicles coexisting with discs) and lamellar phases, depending on R. The thermal behavior of the bilayers inside the selfassembly was investigated by differential scanning calorimetry, wide angle X-ray scattering and nuclear magnetic resonance. We showed that the melting process between the gel state and the fluid state of the bilayers induced a structural change from facetted objects and lamellar phases to spherical vesicles. For R>1, all the myristic acid molecules were under their ionized form and only spherical micelles were present in solution. As in the case of catanionic systems, our study highlights that both R and temperature are two key parameters to finely control the self-assembly structure formed by myristic acid in the presence of choline hydroxide.
Fil: Arnould, Audrey. Institut National de la Recherche Agronomique; Francia
Fil: Perez, Adrián Alejandro. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología de los Alimentos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Fil: Gaillard, Cédric. Institut National de la Recherche Agronomique; Francia
Fil: Douliez, Jean Paul. Institut National de la Recherche Agronomique; Francia
Fil: Cousin, Fabrice. Centre National de la Recherche Scientifique; Francia
Fil: Santiago, Liliana Gabriela. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología de los Alimentos; Argentina
Fil: Zemb, Thomas. Centre National de la Recherche Scientifique; Francia
Fil: Anton, Marc. Institut National de la Recherche Agronomique; Francia
Fil: Fameau, Anne Laure. Institut National de la Recherche Agronomique; Francia - Materia
-
Fatty Acid
Counter-Ion
Molar Ratio
Self-Assembly
Catanionic - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/44501
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CONICET Digital (CONICET) |
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Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperatureArnould, AudreyPerez, Adrián AlejandroGaillard, CédricDouliez, Jean PaulCousin, FabriceSantiago, Liliana GabrielaZemb, ThomasAnton, MarcFameau, Anne LaureFatty AcidCounter-IonMolar RatioSelf-AssemblyCatanionichttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Salt-free catanionic systems based on fatty acids and cationic surfactants are known to exhibit a broad polymorphism by simply tuning the molar ratio between the two components. In the case of fatty acid combined with organic amino counter-ions, very few data are available on the phase behavior obtained as a function of the molar ratio between the counter-ion and the fatty acid. In this study, we investigated the choline hydroxide/myristic acid system as a function of the molar ratio, R= n choline hydroxide/n myristic acid, and the temperature. At molecular scale, the ionization state of myristic acid was determined as a function of R by coupling pH, conductivity and infra-red spectroscopy measurements. At microscopic scale, the self-assemblies were characterized by small angle neutron scattering and microscopy experiments.For R<1, we showed that the two forms of myristic acid molecules (ionized and protonated)coexisted leading to the formation of facetted objects (vesicles coexisting with discs) and lamellar phases, depending on R. The thermal behavior of the bilayers inside the selfassembly was investigated by differential scanning calorimetry, wide angle X-ray scattering and nuclear magnetic resonance. We showed that the melting process between the gel state and the fluid state of the bilayers induced a structural change from facetted objects and lamellar phases to spherical vesicles. For R>1, all the myristic acid molecules were under their ionized form and only spherical micelles were present in solution. As in the case of catanionic systems, our study highlights that both R and temperature are two key parameters to finely control the self-assembly structure formed by myristic acid in the presence of choline hydroxide.Fil: Arnould, Audrey. Institut National de la Recherche Agronomique; FranciaFil: Perez, Adrián Alejandro. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología de los Alimentos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaFil: Gaillard, Cédric. Institut National de la Recherche Agronomique; FranciaFil: Douliez, Jean Paul. Institut National de la Recherche Agronomique; FranciaFil: Cousin, Fabrice. Centre National de la Recherche Scientifique; FranciaFil: Santiago, Liliana Gabriela. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología de los Alimentos; ArgentinaFil: Zemb, Thomas. Centre National de la Recherche Scientifique; FranciaFil: Anton, Marc. Institut National de la Recherche Agronomique; FranciaFil: Fameau, Anne Laure. Institut National de la Recherche Agronomique; FranciaAcademic Press Inc Elsevier Science2015-05info: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/11336/44501Arnould, Audrey; Perez, Adrián Alejandro; Gaillard, Cédric; Douliez, Jean Paul; Cousin, Fabrice; et al.; Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 445; 5-2015; 285-2930021-9797CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcis.2015.01.008info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0021979715000351info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:37Zoai:ri.conicet.gov.ar:11336/44501instacron: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 09:40:37.913CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature |
title |
Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature |
spellingShingle |
Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature Arnould, Audrey Fatty Acid Counter-Ion Molar Ratio Self-Assembly Catanionic |
title_short |
Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature |
title_full |
Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature |
title_fullStr |
Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature |
title_full_unstemmed |
Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature |
title_sort |
Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature |
dc.creator.none.fl_str_mv |
Arnould, Audrey Perez, Adrián Alejandro Gaillard, Cédric Douliez, Jean Paul Cousin, Fabrice Santiago, Liliana Gabriela Zemb, Thomas Anton, Marc Fameau, Anne Laure |
author |
Arnould, Audrey |
author_facet |
Arnould, Audrey Perez, Adrián Alejandro Gaillard, Cédric Douliez, Jean Paul Cousin, Fabrice Santiago, Liliana Gabriela Zemb, Thomas Anton, Marc Fameau, Anne Laure |
author_role |
author |
author2 |
Perez, Adrián Alejandro Gaillard, Cédric Douliez, Jean Paul Cousin, Fabrice Santiago, Liliana Gabriela Zemb, Thomas Anton, Marc Fameau, Anne Laure |
author2_role |
author author author author author author author author |
dc.subject.none.fl_str_mv |
Fatty Acid Counter-Ion Molar Ratio Self-Assembly Catanionic |
topic |
Fatty Acid Counter-Ion Molar Ratio Self-Assembly Catanionic |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.10 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
Salt-free catanionic systems based on fatty acids and cationic surfactants are known to exhibit a broad polymorphism by simply tuning the molar ratio between the two components. In the case of fatty acid combined with organic amino counter-ions, very few data are available on the phase behavior obtained as a function of the molar ratio between the counter-ion and the fatty acid. In this study, we investigated the choline hydroxide/myristic acid system as a function of the molar ratio, R= n choline hydroxide/n myristic acid, and the temperature. At molecular scale, the ionization state of myristic acid was determined as a function of R by coupling pH, conductivity and infra-red spectroscopy measurements. At microscopic scale, the self-assemblies were characterized by small angle neutron scattering and microscopy experiments.For R<1, we showed that the two forms of myristic acid molecules (ionized and protonated)coexisted leading to the formation of facetted objects (vesicles coexisting with discs) and lamellar phases, depending on R. The thermal behavior of the bilayers inside the selfassembly was investigated by differential scanning calorimetry, wide angle X-ray scattering and nuclear magnetic resonance. We showed that the melting process between the gel state and the fluid state of the bilayers induced a structural change from facetted objects and lamellar phases to spherical vesicles. For R>1, all the myristic acid molecules were under their ionized form and only spherical micelles were present in solution. As in the case of catanionic systems, our study highlights that both R and temperature are two key parameters to finely control the self-assembly structure formed by myristic acid in the presence of choline hydroxide. Fil: Arnould, Audrey. Institut National de la Recherche Agronomique; Francia Fil: Perez, Adrián Alejandro. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología de los Alimentos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina Fil: Gaillard, Cédric. Institut National de la Recherche Agronomique; Francia Fil: Douliez, Jean Paul. Institut National de la Recherche Agronomique; Francia Fil: Cousin, Fabrice. Centre National de la Recherche Scientifique; Francia Fil: Santiago, Liliana Gabriela. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología de los Alimentos; Argentina Fil: Zemb, Thomas. Centre National de la Recherche Scientifique; Francia Fil: Anton, Marc. Institut National de la Recherche Agronomique; Francia Fil: Fameau, Anne Laure. Institut National de la Recherche Agronomique; Francia |
description |
Salt-free catanionic systems based on fatty acids and cationic surfactants are known to exhibit a broad polymorphism by simply tuning the molar ratio between the two components. In the case of fatty acid combined with organic amino counter-ions, very few data are available on the phase behavior obtained as a function of the molar ratio between the counter-ion and the fatty acid. In this study, we investigated the choline hydroxide/myristic acid system as a function of the molar ratio, R= n choline hydroxide/n myristic acid, and the temperature. At molecular scale, the ionization state of myristic acid was determined as a function of R by coupling pH, conductivity and infra-red spectroscopy measurements. At microscopic scale, the self-assemblies were characterized by small angle neutron scattering and microscopy experiments.For R<1, we showed that the two forms of myristic acid molecules (ionized and protonated)coexisted leading to the formation of facetted objects (vesicles coexisting with discs) and lamellar phases, depending on R. The thermal behavior of the bilayers inside the selfassembly was investigated by differential scanning calorimetry, wide angle X-ray scattering and nuclear magnetic resonance. We showed that the melting process between the gel state and the fluid state of the bilayers induced a structural change from facetted objects and lamellar phases to spherical vesicles. For R>1, all the myristic acid molecules were under their ionized form and only spherical micelles were present in solution. As in the case of catanionic systems, our study highlights that both R and temperature are two key parameters to finely control the self-assembly structure formed by myristic acid in the presence of choline hydroxide. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-05 |
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/11336/44501 Arnould, Audrey; Perez, Adrián Alejandro; Gaillard, Cédric; Douliez, Jean Paul; Cousin, Fabrice; et al.; Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 445; 5-2015; 285-293 0021-9797 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/44501 |
identifier_str_mv |
Arnould, Audrey; Perez, Adrián Alejandro; Gaillard, Cédric; Douliez, Jean Paul; Cousin, Fabrice; et al.; Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 445; 5-2015; 285-293 0021-9797 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcis.2015.01.008 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0021979715000351 |
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 |
Academic Press Inc Elsevier Science |
publisher.none.fl_str_mv |
Academic Press Inc Elsevier Science |
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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1844613285215731712 |
score |
13.070432 |