表面处理对支撑脂质双层中扩散和结构域形成的影响。
Effect of surface treatment on diffusion and domain formation in supported lipid bilayers.
作者信息
Seu Kalani J, Pandey Anjan P, Haque Farzin, Proctor Elizabeth A, Ribbe Alexander E, Hovis Jennifer S
机构信息
Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2018, USA.
出版信息
Biophys J. 2007 Apr 1;92(7):2445-50. doi: 10.1529/biophysj.106.099721. Epub 2007 Jan 11.
Abstract
Supported lipid bilayers are widely used as model systems due to their robustness. Due to the solid support, the properties of supported lipid bilayers are different from those of freestanding bilayers. In this article, we examine whether different surface treatments affect the properties of supported lipid bilayers. It will be shown that depending on the treatment method, the diffusion of the lipids can be adjusted approximately threefold without altering the composition. Additionally, as the bilayer-support interaction decreases, it becomes easier to form coexisting liquid-ordered and liquid-disordered domains. The physical/chemical alterations that result from the different treatment methods will be discussed.
摘要
由于其稳定性，支撑脂质双层被广泛用作模型系统。由于有固体支撑，支撑脂质双层的性质与独立双层的性质不同。在本文中，我们研究了不同的表面处理是否会影响支撑脂质双层的性质。结果表明，根据处理方法的不同，脂质的扩散可以在不改变组成的情况下大约调整三倍。此外，随着双层与支撑物之间的相互作用减弱，形成共存的液相有序和液相无序区域变得更加容易。我们将讨论不同处理方法所导致的物理/化学变化。
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