Development of pharmaceutical clear gel based on Peceol®, lecithin, ethanol and water: Physicochemical characterization and stability study.

J Colloid Interface Sci

Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-ENSCM-UM2-UM1, Equipe MACS, 8 rue de l'Ecole Normale, 34296 Montpellier, France. Electronic address:

Published: November 2015

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.

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http://dx.doi.org/10.1016/j.jcis.2015.06.010DOI Listing

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