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12-hydroxystearic acid-mediated in-situ surfactant generation: A novel approach for organohydrogel emulsions

hal.structure.identifierUniversité de Lille
hal.structure.identifierUnité Matériaux et Transformations - UMR 8207 [UMET]
dc.contributor.authorFAMEAU, Anne-Laure
hal.structure.identifierLaboratoire Léon Brillouin [LLB - UMR 12]
dc.contributor.authorCOUSIN, Fabrice
hal.structure.identifierRISE Research Institutes of Sweden
dc.contributor.authorDOBRYDEN, Illia
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorDUTOT, Clemence
hal.structure.identifierLaboratoire Léon Brillouin [LLB - UMR 12]
hal.structure.identifierInstitut de Chimie et des Matériaux Paris-Est [ICMPE]
dc.contributor.authorLE COEUR, Clémence
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDOULIEZ, Jean-Paul
hal.structure.identifierInstitut Laue-Langevin [ILL]
dc.contributor.authorPRÉVOST, Sylvain
hal.structure.identifierUniversity of Hull [United Kingdom]
dc.contributor.authorBINKS, Bernard
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorSAINT-JALMES, Arnaud
dc.date.issued2024
dc.identifier.issn0021-9797
dc.description.abstractEnHypothesisOrganohydrogel emulsions display unique rheological properties and contain hydrophilic and lipophilic domains highly desirable for the loading of active compounds. They find utility in various applications from food to pharmaceuticals and cosmetic products. The current systems have limited applications due to complex expensive formulation and/or processing difficulties in scale-up. To solve these issues, a simple emulsification process coupled with unique compounds are required.ExperimentsHere, we report an organohydrogel emulsion based only on a low concentration of 12-hydroxystearic acid acting as a gelling agent for both oil and water phases but also as a surfactant. The emulsification process is based on in-situ surfactant transfer. We characterize the emulsification process occurring at the nanoscale by using tensiometry experiments. The emulsion structure was determined by coupling Small Angle X-ray and neutron scattering, and confocal Raman microscopy.FindingsWe demonstrate that the stability and unique rheological properties of these emulsions come from the presence of self-assembled crystalline structures of 12-hydroxystearic acid in both liquid phases. The emulsion properties can be tuned by varying the emulsion composition over a wide range. These gelled emulsions are prepared using a low energy method offering easy scale-up at an industrial level.
dc.language.isoen
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.title.en12-hydroxystearic acid-mediated in-situ surfactant generation: A novel approach for organohydrogel emulsions
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jcis.2024.05.213
dc.subject.halPhysique [physics]
dc.description.sponsorshipEuropeWorld class Science and Innovation with Neutrons in Europe 2020 – SINE2020
bordeaux.journalJournal of Colloid and Interface Science
bordeaux.page133-141
bordeaux.volume672
bordeaux.peerReviewedoui
hal.identifierhal-04599984
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04599984v1
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