Structural properties and Raman spectroscopy of lipid Langmuir monolayers at the air-water interface

被引：26
|
作者：
Dai, SX
Zhang, XT
Du, ZL [1 ]
Huang, YB
Dang, HX
机构：
[1] Henan Univ, Key Lab Special Funct Mat, Kaifeng 475001, Peoples R China
[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
来源：
COLLOIDS AND SURFACES B-BIOINTERFACES | 2005年 / 42卷 / 01期
基金：
中国国家自然科学基金;
关键词：
langmuir monolayer; lipid; SERS; silver colloids; microscopic observation;
D O I：
10.1016/j.colsurfb.2004.12.021
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
Spectra of octadecylamine (ODA) Langmuir monolayers and egg phosphatidylcholine (PC)/ODA-mixed monolayers at the air-water interface have been acquired. The organization of the monolayers has been characterized by surface pressure-area isotherms. Application of polarized optical microscopy provides further insight in the domain structures and interactions of the film components. Surface-enhanced Raman scattering (SERS) data indicate that enhancement in Raman spectra can be obtained by strong interaction between headgroups of the surfactants and silver particles in subphase. By mixing ODA with phospholipid molecules and spreading the mixture at the air-water interface, we acquired vibrational information of phospholipid molecules with surfactant-aided SERS effect. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：21 / 28
页数：8
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