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Updated: Mar 11, 2026

Fabrication of Size-Controlled and Emulsion-Free Chitosan-Genipin Microgels for Tissue Engineering Applications
Published on: April 13, 2022
In situ forming pluronic® F127/chitosan hydrogel limits metronidazole transmucosal absorption
Sophia Malli1, Christian Bories2, Bénédicte Pradines2
1Institut Galien Paris Sud, UMR CNRS 8612, Univ. Paris-Sud, Université Paris-Saclay, Faculté de Pharmacie, 5, rue J-B. Clément, 92296 Châtenay-Malabry, France; BioCIS « Biomolécules: Conception, Isolement, Synthèse » - « Chimiothérapie Antiparasitaire », UMR CNRS 8076, Univ. Paris-Sud, Université Paris-Saclay, Faculté de Pharmacie, 5, rue J.B. Clément, 92296 Châtenay-Malabry cedex, France.
Abstract:
The objective of this work is to design topically-applied thermosensitive and mucoadhesive hydrogel containing metronidazole (MTZ) for the treatment of Trichomonas vaginalis infections. Hydrogel composed of pluronic® F127 (20wt%), chitosan (1wt%) and metronidazole MTZ (0.7wt%) mixture showed its ability to decrease by a factor 4 MTZ flux and apparent permeability absorption through vaginal mucosa. The impact of hydrogel on transmucosal penetration of MTZ was evaluated ex vivo on excised porcine vaginal mucosa mounted on Franz diffusion cell. The anti-T. vaginalis activity of MTZ formulated into F127/chitosan hydrogel was preserved since the viability curve evaluated in vitro was similar to MTZ solution.
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