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磷脂单分子膜表面特性的研究
Study on the Surface Characteristics of Phospholipid Monolayer
【摘要】 在前期工作的基础上,考虑到不同磷脂的临界相变面积Ac的影响,导出了单分子膜的普遍化状态方程,并通过测定DPPC、DMPC单分子膜的π~A等温线,对该方程的适用性进行了验证。结果表明,该模型能较好地描述磷脂单分子膜在整个呼吸压缩舒张过程中的表面特性,特别是在相变区域,模型值与实验值也能吻合良好。
【Abstract】 After the effect of different phospholipid molecules on the formation of phase transition area was taken into account, the modified state equation for the phospholipid monolayer was derived. Using the above modified state equation, the p ~A isotherms of DPPC and DMPC were determined and verified. The results show that the equation could describe the surfacial characteristic of phospholipid monolayer during the extension-compression circulation, especially in the area of phase transition, the predicted data fit well with the experimental data.
【关键词】 磷脂单分子膜;
表面特性;
状态方程;
p~A等温线;
【Key words】 phospholipid monolayer; surfacial characteristics; state equation; p ~A isotherms;
【Key words】 phospholipid monolayer; surfacial characteristics; state equation; p ~A isotherms;
【基金】 国家自然科学基金(20076012)。
- 【文献出处】 高校化学工程学报 ,Journal of Chemical Engineering of Chinese Universities , 编辑部邮箱 ,2004年05期
- 【分类号】O647
- 【被引频次】2
- 【下载频次】161