高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (6): 1396.

• 研究论文 • 上一篇    下一篇

同轴电纺超细纤维膜构建人工血管材料

曹文轩1,2, 张红1, 袁晓燕1   

  1. 1. 天津大学材料科学与工程学院, 天津市材料复合与功能化重点实验室, 天津 300072;
    2. 第三军医大学药学院药物分析与分析化学教研室, 重庆 400038
  • 收稿日期:2010-07-28 修回日期:2010-09-12 出版日期:2011-06-10 发布日期:2011-05-10
  • 通讯作者: 袁晓燕 E-mail:yuanxy@tju.edu.cn
  • 基金资助:

    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.

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.

摘要: 以右旋糖酐(DEX)为芯、聚乙二醇-b-聚(L-丙交酯-co-ε-己内酯)(PELCL)为壳,经同轴电纺制备DEX/PELCL超细纤维膜。在该电纺纤维内芯分别负载血管内皮生长因子(VEGF)和血小板衍生生长因子(PDGF-bb),并以此构建双层超细纤维膜人工血管支架。4 w的释放结果表明,VEGF和PDGF-bb均表现出突释现象,含有肝素的VEGF样品释放量有所下降。大鼠腹主动脉移植实验表明,载有VEGF和PDGF-bb的超细纤维膜可以用于构建双层人工血管。

关键词: 同轴电纺, 超细纤维, 控制释放, 生长因子, 人工血管

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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