高等学校化学学报

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新型含悬挂羧基聚乳酸的制备及其血液相容性和细胞粘附性

王蔚1, 贾小华1, 刘媛1, 王亮1, 袁直1, 汤石明2, 刘民2, 汤华2   

    1. 南开大学高分子研究所, 功能高分子材料教育部重点实验室, 天津 300071;
    2. 天津医科大学天津市生命科学中心实验室, 天津 300070
  • 收稿日期:2007-09-05 修回日期:1900-01-01 出版日期:2008-02-10 发布日期:2008-02-10
  • 通讯作者: 袁直

Preparation of Functionalized PLA with Pendant Carboxyl and Its Blood Compatibility and Cell Adhesion

WANG Wei1, JIA Xiao-Hua1, LIU Yuan1, WANG Liang1, YUAN Zhi1*, TANG Shi-Ming2, LIU Min2, TANG Hua2   

    1. Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China;
    2. Laboratory of Tianjin Life Science Research Center, Tianjin Medical University, Tianjin 300070, China
  • Received:2007-09-05 Revised:1900-01-01 Online:2008-02-10 Published:2008-02-10
  • Contact: YUAN Zhi

摘要: 制备了乳酸-苹果酸共聚物(PLMA), 并在前期工作的基础上制备了悬挂羧基聚乳酸(PLMACA), 考察了手臂长度及端功能基团对改善聚乳酸的血液相容性及细胞粘附性的影响. 结果表明, PLMACA同时具有良好的血液相容性和细胞亲和性, 极有可能成为新一代血管(修复)材料.

关键词: 聚乳酸, 血液相容性, 内皮细胞, 粘附

Abstract: Biodegradable α-hydroxyl polyesters, such as poly(lactic acid)(PLA) and poly(lactic-co-glycolic acid)(PLGA) were investigated as scaffolds for tissue engineering. However, polymeric materials on the basis of lactide are limited in blood vessel engineering due to their poor hydrophilicity and low affinity for the cells. In this study, the functional polylactide with pendant carboxyl(PLMACA) was synthesized, which was expected to improve the blood compatibility and cell adhesion of polyester based on PLA. The structure and composition of PLMACA were confirmed via 1H NMR spectrum and the compatibilities for blood and cell were stu-died. The results show that the PLMACA is hopeful to be used as blood vessel substitute with good HUVEC adhesion and anti-platelet adhesion.

Key words: Polylactide, Blood compatibility, Human umbilical vein endothelial cell(HUVEC), Adhesion

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