嵌入表面活性剂双层膜中的无机粒子间的排斥作用
Repulsion Between Inorganic Particles Inserted Within Surfactant Bilayers
摘要：
我们研究了同步辐射小角x射线散射高度对齐的层状相的两性离子表面活性剂，掺杂单分散和球形疏水性无机粒子作为粒子浓度的函数。由双层平面中的颗粒形成的二维流体的结构因子的分析给出了它们的膜介导的相互作用的途径，该相互作用是排斥性的，接触值为约4k $_{\text{B}}$ T，范围为14 Ω。系统地应用这项技术，应导致更好地了解膜夹杂物之间的相互作用。
英文摘要：
We study by synchrotron small-angle x-ray scattering highly aligned lamellar phases of a zwitterionic surfactant, doped with monodisperse and spherical hydrophobic inorganic particles as a function of particle concentration. Analysis of the structure factor of the two-dimensional fluid formed by the particles in the plane of the bilayer gives access to their membrane-mediated interaction, which is repulsive, with a contact value of about 4k$_{\text{B}}$T and a range of 14 Å. Systematic application of this technique should lead to a better understanding of the interaction between membrane inclusions.
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