SURFACE EQUATION OF STATE FOR PULMONARY SURFACTANT MONOLAYERS AT AIR-WATER INTERFACE: PROTEIN-LIPID BINARY MIXTURE MONOLAYERS

被引：1
|
作者：
Gao, Xuechao [1 ]
Zeng, Zuoxiang [1 ]
Xue, Weilan [1 ]
Zhang, Juan [1 ]
机构：
[1] E China Univ Sci & Technol, Inst Chem Engn, Shanghai 200237, Peoples R China
来源：
CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2010年 / 88卷 / 06期
基金：
中国国家自然科学基金;
关键词：
binary monolayers; mixing rules; pulmonary surfactant; surface equation of state; N-TERMINAL SEGMENT; SP-C; SP-B; SECONDARY STRUCTURE; SPREAD MONOLAYERS; IR; PEPTIDES; MODEL;
D O I：
10.1002/cjce.20352
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The available surface equation of state for pure pulmonary surfactant monolayers is generalised to binary mixture monolayers by introducing a group of parameters, beta(i) (i=1-4) in the form of x(r)(beta i) to express the influence of the components in new mixing rules and a new factor, I [=(Pi(4)(i=1)beta(i))(1/4)], is defined to represent the interaction intensity between two different components. The pi - A isotherms getting by the surface equations of state agree with the experimental data for protein-lipid binary monolayers, and the average deviation is about 11.41%. The result shows the order of the interaction intensity between protein and lipid is SP-C/DPPG>SP-B/DPPG>SP-C/DPPC>SP-B/DPPC.
引用
收藏
页码：1107 / 1113
页数：7
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