高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (1): 10.

• 论文 • 上一篇    下一篇

稀土离子配合物与磷脂双分子膜的作用研究

袁春波1, 赵大庆2, 吴亦洁2, 裴奉奎2, 倪嘉缵2   

  1. 1. 东南大学化学化工系、分子与生物分子电子学开放实验室, 南京 210096;
    2. 中国科学院长春应用化学研究所稀土化学与物理开放实验室
  • 收稿日期:1995-03-30 出版日期:1996-01-24 发布日期:1996-01-24
  • 通讯作者: 袁春波,男,27岁,博士研究生.
  • 作者简介:袁春波,男,27岁,博士研究生.
  • 基金资助:

    国家攀登计划“稀土基础研究”资助

A NMR Investigation on the interaction of Lanthanide Complexes with Phospholipid Bilayers

YUAN Chun-Bo1, ZHAO Da-Qing2, WU Yi-Jie2, PEI Feng-Kui2, NI Jia-Zuan2   

  1. 1. Laboratory of Molecular &Biomolecular Electronics, Department of Chemistry, Southeast University, Nanjing 210096;
    2. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1995-03-30 Online:1996-01-24 Published:1996-01-24

摘要: 利用一维和二维1H核磁共振方法研究了柠檬酸稀土、稀土-DTPA配合物与磷脂双分子膜的作用,结果表明:在近生理条件下(pH=7.4)及含有柠檬酸配体的磷脂双分子膜体系中,稀土离子首先与柠檬酸配体作用,形成的配合物对磷脂双分子膜的结构影响较小,稀土-DTPA配合物对磷脂双分子膜的结构没有影响。这些结果为科学地评价稀土离子进入体内的毒性提供了实验依据。

关键词: 稀土, 稀土配合物, 磷脂, 核磁共振

Abstract: One and two dimentional NMRmethods were used to investigate the interactionsof lanthanide complexes(Lncit2 and Ln-DTPA)with phospholipid bilayers. The resultsshowed that in the phospholipid bilayers dispersion containing citrate ligand at pH 7.4,lan-thanide ions would initially combine with citrate ligand and form Lncit2 complexes whichhave little effect on the structure of phospholipid bilayers. Ln-DTPAcomplex does not affectthe bilayers structure either.These results provided important experimental data for evaluat-ing scientifically the toxicities of lanthanide ions when they were introduced into the biologi-cal body.

Key words: Rare earth, Lanthanide complex, Phospholipid, NMR method

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