title: Pickering emulsions based on cyclodextrins: A smart solution for antifungal azole derivatives topical delivery.
abstract: Surfactants are usually used for the preparation of emulsions. Potential drawbacks on the human body or on the environment can be observed for some of them(e.g. skin irritation, hemolysis, protein denaturation, etc.). However, it is possible to use biocompatible emulsifiers such as native cyclodextrins (CDs). The mixture of oil (paraffin oil or isopropyl myristate), water and native CDs results in the formation of Pickering emulsions. The emulsion properties were investigated by ternary phase diagrams elaboration, multiple light scattering, optical and transmission microscopies. The results prove that these Pickering emulsions were very stable against coalescence due to the dense film format the oil/water interface. The rheological behavior has shown that these emulsions remain compatible for topical applications. This kind of emulsions (biocompatibility, stability and surfactant free) has been used to obtain sustainable formulations for antifungal econazole derivatives delivery. Our results prove that these new formulations are at least as active as commercially available formulations.
authors.affiliation: Univ. Lille, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France. Electronic address: loic.leclercq@univ-lille1.fr.
authors.forename: Loïc
authors.initials: L
authors.lastname: Leclercq
authors.affiliation: Univ. Lille, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France.
authors.forename: Véronique
authors.initials: V
authors.lastname: Nardello-Rataj
mesh_terms: D000287:Administration, Topical; D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D000935:Antifungal Agents / Q000737:chemistry* / Q000494:pharmacology; D002176:Candida albicans / Q000187:drug effects / Q000254:growth & development; D002626:Chemistry, Pharmaceutical; D003505:Cyclodextrins / Q000737:chemistry* / Q000494:pharmacology; D004355:Drug Stability; D004464:Econazole / Q000737:chemistry* / Q000494:pharmacology; D045703:Emulsifying Agents / Q000737:chemistry; D004655:Emulsions; D008958:Models, Molecular; D012212:Rheology; D013211:Staphylococcus aureus / Q000187:drug effects / Q000254:growth & development
chemical_list: D000900:Anti-Bacterial Agents; D000935:Antifungal Agents; D003505:Cyclodextrins; D045703:Emulsifying Agents; D004655:Emulsions; D004464:Econazole
keywords: Antifungal drug; Cyclodextrin; Pathogen; Pickering emulsion; Topical delivery