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Design and In Vitro Evaluation of Finasteride-Loaded Liquid Crystalline Nanoparticles for Topical Delivery
Authors:Thiagarajan Madheswaran  Rengarajan Baskaran  Raj Kumar Thapa  Jeong Yeon Rhyu  Hye Yoon Choi  Jong Oh Kim  Chul Soon Yong  Bong Kyu Yoo
Institution:1. College of Pharmacy, Yeungnam University, 214-1 Dae-dong, Gyeongsan, 712-749, South Korea
2. College of Pharmacy, Gachon University, 191 Hambakmoero, Incheon, 406-799, South Korea
Abstract:In this study, liquid crystalline nanoparticles (LCN) have been proposed as new carrier for topical delivery of finasteride (FNS) in the treatment of androgenetic alopecia. To evaluate the potential of this nanocarrier, FNS-loaded LCN was prepared by ultrasonication method and characterized for size, shape, in vitro release, and skin permeation–retention properties. The particle size ranged from 153.8 to 170.2 nm with a cubical shape and exhibited controlled release profile with less than 20% of the drug released in the first 24 h. The release profile was significantly altered with addition of different additives. Formulation with lower monoolein exhibited higher skin permeation with a flux rate of 0.061?±?0.005 μg?cm?2?h?1 in 24 h. The permeation however, significantly increased with glycerol, propylene glycol, and polyethylene glycol 400, while it declined for the addition of oleic acid. A similar trend was observed with skin retention study. In conclusion, FNS-loaded LCN could be advocated as a viable alternative for oral administration of the drug.Key words: androgenetic alopecia, finasteride, liquid crystalline nanoparticles, release, skin permeation–retention
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