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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Mouri, Abdelkader Maurel, Jean Claude El Ghzaoui, Abdeslam Legrand, Philippe Diat, Olivier Devoisselle, Jean-Marie Bauer, Caroline Dorandeu, Christophe |
| Description | Country affiliation: France Author Affiliation: Mouri A ( Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-ENSCM-UM2-UM1, Equipe MACS, 8 rue de l'Ecole Normale, 34296 Montpellier, France); Diat O ( Institut de Chimie Séparative de Marcoule, ICSM UMR 5257 (CEA/CNRS/UM2/ENSCM), 30206 Bagnols sur Cèze, France.); El Ghzaoui A ( Institut des Biomolécules Max Mousseron, UMR CNRS 5247, Université de Montpellier I, 34060 Montpellier, France.); Bauer C ( Medesis Pharma, Avenue du Golf, L'Orée des Mas, Les Cyprès, 34670 Baillargues, France.); Maurel JC ( Medesis Pharma, Avenue du Golf, L'Orée des Mas, Les Cyprès, 34670 Baillargues, France.); Devoisselle JM ( Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-ENSCM-UM2-UM1, Equipe MACS, 8 rue de l'Ecole Normale, 34296 Montpellier, France.); Dorandeu C ( Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-ENSCM-UM2-UM1, Equipe MACS, 8 rue de l'Ecole Normale, 34296 Montpellier, France.); Legrand P ( Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-ENSCM-UM2-UM1, Equipe MACS, 8 rue de l'Ecole Normale, 34296 Montpellier, France. Electronic address: philippe.legrand@univ-montp1.fr.) |
| Abstract | The phase diagram of the four component system Peceol®/lecithin/ethanol/water was studied at 25°C and at a fixed fraction of ethanol. It shows an isotropic W/O microemulsion phase, biphasic liquid system and Liquid crystalline phases. The stabilizing effect of lecithin with the fluidifying effect of ethanol on the microemulsion based on long chain glycerides provides an effective combination to solubilize a large amount of water. Some structural transitions in the phase diagram were investigated as a function of water content using conductivity, rheology, Karl Fisher titration, optical microscopy and SAXS measurements. The results show no change in the microstructure of the isotropic liquid upon phase separation in the liquid biphasic area. However, in the water rich region, migration of ethanol to the external aqueous phase at the expense of the saturated microemulsion promotes the formation of liquid crystalline phases. As a function of water content, the structural change to the liquid crystalline phases follows: isotropic phase L2 â Inverted hexagonal phase H2 â Inverted hexagonal H2/lamellar L phases. |
| ISSN | 00219797 |
| Volume Number | 416 |
| e-ISSN | 10957103 |
| Journal | Journal of Colloid and Interface Science |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-02-15 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Ethanol Chemistry Lecithins Oleic Acids Pharmaceutical Solutions Water Crystallization Electric Conductivity Emulsions Humans Magnetic Resonance Spectroscopy Micelles Phase Transition Rheology Scattering, Small Angle X-ray Diffraction Journal Article Discipline Colloid & Interface Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Colloid and Surface Chemistry Biomaterials Electronic, Optical and Magnetic Materials |
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