高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (7): 1421.

• 研究论文 • 上一篇    下一篇

一种新型低密度脂蛋白吸附剂的制备

徐建宽, 何炳林   

  1. 南开大学高分子研究所, 南开大学吸附与分离功能高分子材料国家重点实验室, 天津 300071
  • 收稿日期:2001-04-18 出版日期:2002-07-24 发布日期:2002-07-24
  • 通讯作者: 徐建宽(1970年出生),男,博士,副教授,主要从事生化分离研究.E-mail:xujk@eyou.com E-mail:xujk@eyou.com
  • 基金资助:

    973项目(批准号:G1999064707);国家博士学科点基金(批准号:98005504)资助

Preparation of a New Adsorbent for Binding Low Density Lipoprotein

XU Jian-Kuan, HE Bing-Lin   

  1. Institute of Polymer Chemistry, State Key Laboratory of Functional Polymeric Materials for Adsorption and Separation, Nankai University, Tianjin 300071, China
  • Received:2001-04-18 Online:2002-07-24 Published:2002-07-24

摘要: 通过在环氧化的交联聚乙烯醇球上固载多乙烯多胺和磺酸基团的方法制备一种新型的低密度脂蛋白吸附剂.环氧化的交联聚乙烯醇球首先与乙二胺或二乙烯三胺、三乙烯四胺及四乙烯五胺等多乙烯多胺进行胺化反应,由此获得不同长度悬臂,而后将胺化的环氧化的交联聚乙烯醇球与DMF/ClSO3H反应,从而固载磺酸基团.磺酸基团的固载量随交联度的减小和聚乙烯醇浓度的增大而增大.初步研究证实,该类吸附剂具有较大的吸附量和较好的选择性.

关键词: 低密度脂蛋白, 吸附, 吲哚-3-乙酸, 色氨酸, 大孔聚乙烯醇树脂, 聚乙烯醇, 磺化, 悬臂, 低密度脂蛋白

Abstract: Anew adsorbent for binding low-density lipoprotein was prepared by the immobilization of sulfuric group on crosslinked poly(vinyl alcohol) bead. Spacers with different lengths were introduced, by the reaction with polyethylene polyamine, to the crosslinked poly(vinyl alcohol) bead with epoxy group, and then sulfuric group was immobilized by the reaction with DMF/ClSO3H. It was found that this method could increase the amount of immobilized sulfuric group, which increased with decreasing crosslinking degree and increasing PVAconcentration. The adsorption experiments in vitro showed that this kind of adsorbent had a satisfactory adsorption capacity and selectivity.

Key words: Low density lipoprotein, Adsorption, Indole-3-acetic acid, Tryptophan, Macroporous PVA beads, Poly(vinyl alcohol), Sulfonation, Spacer arm, Low density lipoprotein

中图分类号: 

TrendMD: