Journal
JOURNAL OF PHARMACEUTICAL SCIENCES
Volume 100, Issue 2, Pages 424-430Publisher
WILEY
DOI: 10.1002/jps.22310
Keywords
Biomaterials; biodegradable polymers; biocompatibility; controlled release/delivery; nanotechnology
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A new three-dimensional (3D) scaffold containing a functional drug delivery system (DDS) consisting of electrospun micro/nanofibers is proposed. In the DDS scaffold, a core-shell laminated, structured, electrospun mat of hydrophobic polycaprolactone (PCL) and hydrophilic poly(ethylene oxide) (PEO)/rhodamine-B fibers was embedded in the normal 3D PCL scaffold, which was fabricated by a melt-plotting system. Rhodamine release from the scaffold was controlled physically by the thickness change of the PCL layer, and initial burst in drug release was eliminated by an appropriate thickness of the PCL layer. This simple technique may be useful in fabricating DDS-functional scaffolds for the clinical areas not only of bone and skin regeneration, but also of other tissue regeneration areas, regardless of the degradation rate of the structural scaffold. (C) 2010 Wiley-Liss, Inc. and the American Pharmacists Association J Pharm Sci 100:424-430, 2011
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