Van 't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands.
European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000, Grenoble, France.
Soft Matter. 2017 Mar 29;13(13):2421-2425. doi: 10.1039/c7sm00109f.
The hierarchical self-assembly of sugar and surfactant molecules into hollow tubular microstructures was characterized in situ with high resolution small-angle X-ray scattering spanning more than three orders of magnitude of spatial scales. Scattering profiles reveal that aqueous host-guest inclusion complexes self-assemble into multiple equally spaced curved bilayers forming a collection of concentric hollow cylinders. Scattering data can be described by a simple theoretical model of the microtubes. The interlamellar distance was found to be surprisingly large. Moreover, we report that the multi-walled structure of the microtubes swells as the concentration or the temperature is varied.
糖和表面活性剂分子通过分级自组装形成中空管状微结构，我们利用高分辨率小角 X 射线散射对其进行了跨越三个数量级的空间尺度的原位表征。散射谱表明，水相主体-客体包合物自组装成多个等间距的弯曲双层，形成一系列同心的中空圆柱。散射数据可以用微管的简单理论模型来描述。层间距大得惊人。此外，我们还报告称，随着浓度或温度的变化，微管的多壁结构会发生膨胀。
