title: Development of pharmaceutical clear gel based on Peceol®, lecithin, ethanol and water: Physicochemical characterization and stability study.
abstract: The phase behavior of the four-components Peceol®/lecithin/ethanol/water system has been studied in a part of the phase diagram poor in water and varying the lecithin/Peceol® ratio. Using several complementary techniques such as Karl Fischer titration, rheology, polarized microscopy and SAXS measurements several nanostructures of the complex systems were identified. W/O microemulsion (L2) as well as an inverted hexagonal (H2) liquid-crystal phase were studied. The analysis of the different phase transitions allows us to understand the effect of lecithin on the water solubilization efficiency of this clear gel and to show its pharmaceutical interest among lecithin organogels.
authors.affiliation: Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-ENSCM-UM2-UM1, Equipe MACS, 8 rue de l'Ecole Normale, 34296 Montpellier, France; Medesis Pharma, S.A, Avenue du Golf, L'Orée des Mas, Les Cyprès, 34670 Baillargues, France.
authors.forename: Abdelkader
authors.initials: A
authors.lastname: Mouri
authors.affiliation: Institut de chimie séparative de Marcoule, ICSM UMR 5257 (CEA/CNRS/UM2/ENSCM), 30206 Bagnols sur Cèze, France.
authors.forename: Olivier
authors.initials: O
authors.lastname: Diat
authors.affiliation: Institut des biomolécules Max Mousseron, UMR CNRS 5247, Université de Montpellier I, 34060 Montpellier, France.
authors.forename: Abdeslam
authors.initials: A
authors.lastname: El Ghzaoui
authors.affiliation: Centre de Recherche Paul Pascal (CRPP), CNRS, 115 av. Schweitzer, F-33600 Pessac, France.
authors.forename: Isabelle
authors.initials: I
authors.lastname: Ly
authors.affiliation: Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-ENSCM-UM2-UM1, Equipe MACS, 8 rue de l'Ecole Normale, 34296 Montpellier, France.
authors.forename: Christophe
authors.initials: C
authors.lastname: Dorandeu
authors.affiliation: Medesis Pharma, S.A, Avenue du Golf, L'Orée des Mas, Les Cyprès, 34670 Baillargues, France.
authors.forename: Jean Claude
authors.initials: JC
authors.lastname: Maurel
authors.affiliation: Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-ENSCM-UM2-UM1, Equipe MACS, 8 rue de l'Ecole Normale, 34296 Montpellier, France.
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: Devoisselle
authors.affiliation: 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.
authors.forename: Philippe
authors.initials: P
authors.lastname: Legrand
mesh_terms: D002627:Chemistry, Physical; D000431:Ethanol / Q000737:chemistry*; D005782:Gels / Q000737:chemistry*; D054709:Lecithins / Q000737:chemistry*; D050866:Liquid Crystals / Q000737:chemistry; D049329:Nanostructures / Q000737:chemistry; D009829:Oleic Acids / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D005782:Gels; D054709:Lecithins; D009829:Oleic Acids; C482692:Peceol; D014867:Water; D000431:Ethanol
keywords: Gel; Inverted hexagonal phase; Lecithin; Mono- di- tri-glycerides; Phase diagram; Polar lipids; W/O microemulsion