Detection of coexisting bilayer gel and fluid phases by equilibrium surface pressure analysis

被引：5

作者：

Buboltz, JT ^{[1
]}

Feigenson, GW ^{[1
]}

机构：

[1] Cornell Univ, Field Biophys, Ithaca, NY 14853 USA

来源：

LANGMUIR | 2000年 / 16卷 / 08期

关键词：

D O I：

10.1021/la990912i

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A study of bilayer phase behavior is presented for the phospholipid mixture di12:0-PC/di16:0-PC, based on an analysis of equilibrium surface pressures which develop at the gas-water interface above suspensions of bilayer vesicles. At 22 +/- 1 degrees C, the fluidus and solidus bilayer phase boundaries are determined to be 32 and 85 mol % di16:0-PC, respectively, consistent with literature values obtained through calorimetry. Evidence is presented which suggests that Teflon substrates are better suited than high-energy substrates for surface pressure measurements involving insoluble monolayers.

引用

页码：3606 / 3611

页数：6

共 26 条

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