华南理工大学学报(自然科学版) ›› 2012, Vol. 40 ›› Issue (7): 142-147.

• 材料科学与技术 • 上一篇    下一篇

海藻酸钠的提纯及海藻酸钙多孔支架的制备

刘杨 任力 季培红 王迎军   

  1. 华南理工大学 材料科学与工程学院∥国家人体组织功能重建工程技术研究中心∥广东省生物医学工程重点实验室,广东 广州 510640
  • 收稿日期:2012-02-11 修回日期:2012-04-10 出版日期:2012-07-25 发布日期:2012-06-01
  • 通信作者: 任力(1973-) ,男,教授,博士生导师,主要从事生物医用材料和组织工程研究. E-mail: psliren@scut.edu.cn E-mail:liuyang_cug@ yahoo.com.cn
  • 作者简介:刘杨(1985-) ,男,博士生,主要从事高分子材料、生物医用材料研究.
  • 基金资助:

    国家自然科学基金重点项目( 50732003; 50803018)

Purification of Sodium Alginate and Preparation of Porous Calcium Alginate Scaffolds

Liu Yang  Ren Li  Ji Pei-hong  Wang Ying-jun   

  1. School of Materials Science and Engineering∥National Engineering Research Center for Tissue Restoration and Reconstruction∥Guangdong Province Key Laboratory of Biomedical Sciences and Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2012-02-11 Revised:2012-04-10 Online:2012-07-25 Published:2012-06-01
  • Contact: 任力(1973-) ,男,教授,博士生导师,主要从事生物医用材料和组织工程研究. E-mail: psliren@scut.edu.cn E-mail:liuyang_cug@ yahoo.com.cn
  • About author:刘杨(1985-) ,男,博士生,主要从事高分子材料、生物医用材料研究.
  • Supported by:

    国家自然科学基金重点项目( 50732003; 50803018)

摘要: 采用丙酮沉淀法对海藻酸钠原料进行了提纯,对纯化后的海藻酸钠进行了红外光谱测试和凝胶渗透色谱测试,并测定了提纯前后海藻酸钠样品中剩余蛋白质的含量.此外,通过CaCl2-海藻酸钠、CaSO4 /GDL-海藻酸钠和Ca-EDTA/GDL-海藻酸钠3 种交联体系制备了多种海藻酸钙三维多孔支架材料.研究结果表明: 由质量分数为2.5% ~ 3.0%的海藻酸钠所制得的Ca-EDTA/GDL-海藻酸钙三维多孔支架材料中微孔分布均匀,比表面积较大,且具有较好的力学性能,该支架有可能用作组织工程和细胞工程中培养细胞的培养基.

关键词: 组织工程, 多孔支架, 海藻酸钙, 海藻酸钠

Abstract:

Sodium alginate ( AlgNa) was purified via the acetone precipitation,and the product was tested by means of FT-IR and GPC. Then,the contants of residual protein in both the unpurified and the purified samples were measured,and several three-dimension porous calcium alginate scaffolds were fabricated through such three crosslinking systems as CaCl2-AlgNa,CaSO4 /GDL-AlgNa and Ca-EDTA/GDL-AlgNa. The results indicate that the
porous Ca-EDTA/GDL-AlgNa scaffold with a sodium alginate content of 2.5%~ 3.0% possesses uniform micropore distribution,large specific surface area and excellent mechanical behavior,which means that it is suitable for the cell culture in tissue engineering and cell engineering.

Key words: tissue engineering, porous scaffold, calcium alginate, sodium alginate

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