高度排列的磷脂膜的镜面散射和漫散射。
Specular and diffuse scattering of highly aligned phospholipid membranes.
作者信息
Salditt T, Münster C, Lu J, Vogel M, Fenzl W, Souvorov A
机构信息
Sektion Physik der Ludwig-Maximilians-Universität München, Geschwister-Scholl-Platz 1, D-80539 München, Germany.
出版信息
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1999 Dec;60(6 Pt B):7285-9. doi: 10.1103/physreve.60.7285.
We present a quantitative study of specular and diffuse (non-specular) x-ray and neutron reflectivity from highly aligned phospholipid membranes deposited on solid substrates. The height-height correlation function could be obtained from the diffuse scattering without further model assumptions. The results differ significantly from the linear theory of smectic elasticity. We argue that the diffuse scattering is dominated by static liquid-crystalline defects, rather than thermal fluctuations.
我们展示了对沉积在固体衬底上的高度取向磷脂膜的镜面反射和漫反射（非镜面反射）X射线及中子反射率的定量研究。无需进一步的模型假设，就可以从漫散射中获得高度-高度关联函数。结果与近晶弹性的线性理论有显著差异。我们认为，漫散射主要由静态液晶缺陷主导，而非热涨落。
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