Influence of La3+ ions on the egg-yolk phosphatidylcholine and sodium   taurocholate self-assemblies in aqueous suspension

doi:10.1016/j.jcis.2008.09.011

CORC > 北京大学 > 化学与分子工程学院

	Influence of La3+ ions on the egg-yolk phosphatidylcholine and sodium taurocholate self-assemblies in aqueous suspension
	Chen, Huhe ; Guo, Zhengduo ; Yu, Fangting ; Qi, Jian ; Zhang, Li ; Zhou, Yong ; Yang, Zhanlan ; Xu, Yizhuang ; Wu, Jinguang ; Xu, Guangxian
刊名	胶体与界面科学杂志
	2008
关键词	Mixed micelle Vesicle Structural transition BILE-SALT-LECITHIN PHOSPHOLIPID VESICLE AGGREGATION BILIARY LIPID SYSTEMS MIXED MICELLES CHOLESTEROL CARRIERS MONO-VALENT METAL IONS SCATTERING CALCIUM TRANSITION
DOI	10.1016/j.jcis.2008.09.011
英文摘要	In this study, the influence of La3+ on the mixed egg-yolk phosphatidylcholine (EYPC)-sodium taurocholate TC) aggregates was investigated by using turbidity, quasi-elastic light-scattering (QELS) technique, Fourier transform infrared (FTIR) spectroscopy, and transmission electron microscopy (TEM). La3+ ions exert different effects on different EYPC-TC aggregates. The EYPC-TC mixed spheroidal micelles are stable in the presence of La3+ ions. The EYPC-TC vesicles are aggregated by the interaction of La3+ with the EYPC phosphate group. Particularly, La3+ causes structural transition of the EYPC-TC mixed disk micelles by changing the colloidal properties of TC. This process includes two steps, destruction of mixed disk micelles and formation of mixed spheroidal micelle. Several intermediate structures such as multi-lamellar vesicles and cylindrical micelles were observed during the transition. The experimental data and analysis in the current study suggest that metal ion is one of the important factors to control the structure of the EYPC-TC self-assemblies. And the possible influence of metal ions on the properties of bile biocolloid has been discussed. (C) 2008 Elsevier Inc. All rights reserved.; Chemistry, Physical; SCI(E); EI; PubMed; 2; ARTICLE; 1; 158-165; 328
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150194]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Chen, Huhe,Guo, Zhengduo,Yu, Fangting,et al. Influence of La3+ ions on the egg-yolk phosphatidylcholine and sodium taurocholate self-assemblies in aqueous suspension[J]. 胶体与界面科学杂志,2008.
APA	Chen, Huhe.,Guo, Zhengduo.,Yu, Fangting.,Qi, Jian.,Zhang, Li.,...&Xu, Guangxian.(2008).Influence of La3+ ions on the egg-yolk phosphatidylcholine and sodium taurocholate self-assemblies in aqueous suspension.胶体与界面科学杂志.
MLA	Chen, Huhe,et al."Influence of La3+ ions on the egg-yolk phosphatidylcholine and sodium taurocholate self-assemblies in aqueous suspension".胶体与界面科学杂志 (2008).