Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (6): 1396.

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Ultrafine Fibrous Membranes by Coaxial Electrospinning for Artificial Blood Vessel

CAO Wen-Xuan1,2, ZHANG Hong1, YUAN Xiao-Yan1*   

  1. 1. School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, China;
    2. Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
  • Received:2010-07-28 Revised:2010-09-12 Online:2011-06-10 Published:2011-05-10
  • Contact: YUAN Xiao-Yan E-mail:yuanxy@tju.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 50573055)和天津市应用基础及前沿技术研究计划(批准号: 09JCZDJC18600)资助.

Abstract: Core/shell ultrafine fibers, with dextran (DEX) and poly(ethylene glycol)-b- poly(L-lactide-co-ε-caprolactone) (PELCL) as the core and shell, respectively, were prepared by coaxial electrospinning. Double-layered ultrafine fibrous tubes of the coaxial-electrospun DEX/PELCL fibers were constructed for application as artificial blood vessel by loading vascular endothelial growth factor (VEGF) and platelet derived growth factor-bb (PDGF-bb), respectively in the fiber core. The in vitro releasing results of 4 w indicated that initial burst release occurred for both VEGF and PDGF-bb. The in vivo implantation in abdomen aorta of a rat model showed that the double-layered fibrous tubes loading VEGF and PDGF-bb could be potential used as artificial blood vessels.

Key words: Coaxial electrospinning, Ultrafine fiber, Controlled release, Growth factor, Artificial blood vessel

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