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Preparation and Characterization of Biodegradable Electrospun Polyanhydride Nano/Microfibers

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The biodegradable polyanhydride copolymers P(CPP–SA) composed of p-carboxyhenoxy propane (CPP) and sebacic acid (SA) at weight ratios of 20:80, 35:65 and 50:50 were polymerized by a melt polycondensation process without catalyst. The copolymers were characterized by fourier transform infrared spectroscopy (FT-IR), 1H-nuclear magnetic resonance (1H-NMR), Ubbelohde viscometer, differential scanning calorimetry (DSC) and wide angle X-ray powder-diffraction (XRD). P(CPP–SA) nano/microfibers were the first time to be fabricated by electrospinning. The copolymers hold an excellent fibre-forming performance and the diameter range of 80–3,200 nm can be obtained. The in vitro degradation of the polyanhydride copolymers was evaluated in form of the nano/microfibers by investigating the change of fibrous morphology, weight loss and pH change of degradation medium. The experimental results showed that degradation rate was fast in the fist day and slow in the following period, furthermore the degradation rate decreased with the increase of the content of CPP in copolymers. Therefore, the electrospun polyanhydride nano/microfibers exhibited strong potential as drug delivery vehicle and tissue engineering scaffold.
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Document Type: Research Article

Publication date: 01 October 2010

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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