FAMEAU, Anne-Laure; COUSIN, Fabrice; DOBRYDEN, Illia; DUTOT, Clemence; LE COEUR, Clémence; DOULIEZ, Jean-Paul; PRÉVOST, Sylvain; BINKS, Bernard; SAINT-JALMES, Arnaud

doi:10.1016/j.jcis.2024.05.213

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FAMEAU, Anne-Laure
Université de Lille
Unité Matériaux et Transformations - UMR 8207 [UMET]

COUSIN, Fabrice
Laboratoire Léon Brillouin [LLB - UMR 12]

DOBRYDEN, Illia
RISE Research Institutes of Sweden

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Ce document a été publié dans

Journal of Colloid and Interface Science. 2024, vol. 672, p. 133-141

Elsevier

Résumé en anglais

HypothesisOrganohydrogel 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.< Réduire

DOI

http://dx.doi.org/10.1016/j.jcis.2024.05.213

Projet Européen

World class Science and Innovation with Neutrons in Europe 2020 – SINE2020

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Importé de hal

Unités de recherche

Biologie du Fruit & Pathologie (BFP) - UMR 1332