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Drug-inorganic-polymer nanohybrid for transdermal delivery
- Drug-inorganic-polymer nanohybrid for transdermal delivery
- Kim M.H.; Park D.-H.; Yang J.-H.; Choy Y.B.; Choy J.-H.
- Ewha Authors
- 최진호; 양재훈
- SCOPUS Author ID
- 최진호; 양재훈
- Issue Date
- Journal Title
- International Journal of Pharmaceutics
- vol. 444, no. 41276, pp. 120 - 127
- SCI; SCIE; SCOPUS
- For transdermal drug delivery, we prepared a drug-inorganic nanohybrid (FB-LDH) by intercalating a transdermal model drug, flurbiprofen (FB), into the layered double hydroxides (LDHs) via coprecipitation reaction. The X-ray diffraction patterns and FT-IR spectra of the FB-LDH indicated that the FB molecules were successfully intercalated via electrostatic interaction within the LDH lattices. The in vitro drug release revealed that the Eudragit® S-100 in release media could facilitate the drug out-diffusion by effectively replacing the intercalated drug and also enlarging the lattice spacing of the FB-LDH. In this work, a hydrophobic gel suspension of the FB-LDH was suggested as a transdermal controlled delivery formulation, where the suspensions were mixed with varying amounts of Eudragit® S-100 aqueous solution. The Frantz diffusion cell experiments using mouse full-skins showed that a lag time and steady-state flux of the drug could be controlled from 12.8 h and 3.28 μg cm-2 h-1 to less than 1 h and 14.57 μg cm-2 h-1, respectively, by increasing the mass fraction of Eudragit® S-100 solution in gel suspensions from 0% to 20% (w/w), respectively. Therefore, we conclude gel formulation of the FB-LDH have a potential for transdermal controlled drug delivery. © 2013 Elsevier B.V. All rights reserved.
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