RT info:eu-repo/semantics/article T1 Functional ibuprofen-loaded cationic nanoemulsion: Development and optimization for dry eye disease treatment A1 Jurišić Dukovski, Bisera A1 Juretić, Marina A1 Bračko, Danka A1 Randjelović, Danijela A1 Savić, Snežana A1 Crespo Moral, Mario A1 Diebold Luque, María Yolanda A1 Filipović Grčić, Jelena A1 Pepić, Ivan A1 Lovrić, Jasmina K1 Oftalmología K1 Dry eye disease K1 Nanoemulsion K1 NSAID K1 Enfermedad del ojo seco K1 Nanoemulsión K1 AINE K1 3201.09 Oftalmología AB Inflammation plays a key role in dry eye disease (DED) affecting millions of people worldwide. Non-steroidal anti-inflammatory drugs (NSAIDs) can be used topically to act on the inflammatory component of DED, but their limited aqueous solubility raises formulation issues. The aim of this study was development and optimization of functional cationic nanoemulsions (NEs) for DED treatment, as a formulation approach to circumvent solubility problems, prolong drug residence at the ocular surface and stabilize the tear film. Ibuprofen was employed as the model NSAID, chitosan as the cationic agent, and lecithin as the anionic surfactant enabling chitosan incorporation. Moreover, lecithin is a mixture of phospholipids including phosphatidylcholine and phosphatidylethanolamine, two constituents of the natural tear film important for its stability. NEs were characterized in terms of droplet size, polydispersity index, zeta-potential, pH, viscosity, osmolarity, surface tension, entrapment efficiency, stability, sterilizability and in vitro release. NEs mucoadhesive properties were tested rheologically after mixing with mucin dispersion. Biocompatibility was assessed employing 3D HCE-T cell-based model and ex vivo model using porcine corneas. The results of our study pointed out the NE formulation with 0.05% (w/w) chitosan as the lead formulation with physicochemical properties adequate for ophthalmic application, mucoadhesive character and excellent biocompatibility. PB Elsevier SN 0378-5173 YR 2020 FD 2020 LK https://uvadoc.uva.es/handle/10324/64984 UL https://uvadoc.uva.es/handle/10324/64984 LA eng NO International Journal of Pharmaceutics, 2020, vol. 576, 118979 NO Producción Científica DS UVaDOC RD 17-jul-2024