The interaction of Cu2+ ions and NaDC micelles

doi:10.1016/S1386-1425(01)00601-1

CORC > 北京大学 > 化学与分子工程学院

	The interaction of Cu2+ ions and NaDC micelles
	Sun, Y ; Yang, ZL ; Zhang, L ; Hu, TD ; Soloway, RD ; Weng, SF ; Wu, JG
刊名	spectrochimica acta part a molecular and biomolecular spectroscopy
	2002
关键词	copper deoxycholate sodium deoxycholate steroid micelle gel FT-IR spectra BILE-SALT MICELLES TRANSITION-METAL IONS SODIUM CHOLATE CALCIUM-IONS BINDING GLYCOCHOLATE TAUROCHOLATE AGGREGATION BEHAVIOR SYSTEM
DOI	10.1016/S1386-1425(01)00601-1
英文摘要	By mixing an aqueous solution of CuCl2 with an NaDC aqueous solution of various concentration and initial molar ratio, seven coordinated samples with distinct appearances and characters were obtained. Their structures and components were investigated by FT-IR spectroscopy, EXAFS (the extended X-ray absorption fine structure), thermal analysis, X-ray diffraction, laser light scattering, TEM (transmission electron micrograph), element analysis and ICP (inductively coupled plasma) analysis. The following conclusions were given: (1) The complexes of Cu2+-NaDC with distinct appearances and properties were synthesized. (2) After Cu(DC)(2) dissolved in NaDC aqueous solution, larger micelles (30-90 nm diameter) formed in the supernate, it is a mixed micelle with Cu(DC)(2) and NaDC. So these micelles are a new kind of micelle containing two kinds of metal ions. This is a new result using metal ions as bridges to form micelle. (3) According to the different concentration of Cu2+ to NaDC, the complexes formed as gel or poly-crystals. Both the composition of gel complexes and the coordination structure of carboxyl groups with metal ions varied with the initial molar ratio of Cu2+ to Na+. The gel complexes exhibits the non-stoichiometric character. (4) These results are in agreement with physiological condition. All the different states such as gel, precipitate, micelles of various structures are present in bile of gallbladder. We can suggest an ideal model of the interaction between Cu2+ and bile salts in vivo. (C) 2002 Elsevier Science B.V. All rights reserved.; Spectroscopy; SCI(E); EI; PubMed; 11; ARTICLE; 7; 1489-1498; 58
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/200452]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Sun, Y,Yang, ZL,Zhang, L,et al. The interaction of Cu2+ ions and NaDC micelles[J]. spectrochimica acta part a molecular and biomolecular spectroscopy,2002.
APA	Sun, Y.,Yang, ZL.,Zhang, L.,Hu, TD.,Soloway, RD.,...&Wu, JG.(2002).The interaction of Cu2+ ions and NaDC micelles.spectrochimica acta part a molecular and biomolecular spectroscopy.
MLA	Sun, Y,et al."The interaction of Cu2+ ions and NaDC micelles".spectrochimica acta part a molecular and biomolecular spectroscopy (2002).