摘要
运用热力学吉布斯吸附方程和表面张力公式,计算了不同膜压下磷脂酰丝氨酸-胆固醇形成分子层中非离子去污剂Triton X-100嵌入量、Triton X-100"过剩量"以及体系中对应的自由能的变化.结果表明:随着膜压的不断增大,磷脂酰丝氨酸-胆固醇分子层中Triton X-100的嵌入量逐渐增大.单位面积内Triton X-100"过剩量"和体系自由能变化量均与分子层膜压成正比.
The insertion of non-ionic detergent Triton X-100 in the Phosphatidyle thanolamine/cholesterol bilayer has been studied by the Gibbs adsorption equation and surface tension equation.The equations are deduced to give out the ＂excess＂ molar amounts of Triton X-100 and the variation of free energy in the system.The results showed that the insertion molar amounts and the ＂excess＂ molar amounts of Triton X-100 is increased as the surface pressure increase.The variation of free energy is in proportion to the surface pressure of bilayer.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第2期38-40,共3页
Journal of Shaanxi Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(20772077)
关键词
吉布斯吸附方程
嵌入量
非离子去污剂
Gibbs adsorption equation
insertion molar amounts
non-ionic detergent
