自组装双子表面活性剂的体内状期中的水动力学
Santanu Roy1, David Skoff1, Dominic V Perroni1
1Department of Chemistry, University of Wisconsin , 1101 University Avenue, Madison, Wisconsin 53706, United States.
Journal of the American Chemical Society
|February 16, 2016
概括
由于表面活性剂的相互作用,纳米孔状旋转相中的水动力比散装水慢. 然而,它们比反向微粒更快,为设计高效的离子运输膜提供了洞察力.
科学领域:
- 材料科学
- 物理化学
- 超分子化学
背景情况:
- 纳米孔材料中的水动力学对于离子传输至关重要.
- 轻热回旋相是具有功能应用潜力的自组装纳米结构.
研究的目的:
- 在正常的 (I型) 溶解性旋转期研究界面水的结动力学.
- 为了比较旋转阶段的水动力学与反向微粒中的水.
主要方法:
- 二维红外 (2DIR) 光谱.
- 分子动力学 (MD) 模拟
- 对水界动态和结相互作用的分析.
主要成果:
- 在正常的旋转阶段, 水的动态比散装水慢10倍.
- 旋转期的水动态比相似孔径的反向小粒更快.
- 与反向微粒相比,旋转阶段的界面曲率减少有助于更快的水动力学.
结论:
- 封闭式水动力学受到纳米结构形态和表面活性物相互作用的显著影响.
- 正常的旋转期为控制的离子运输提供了一个有前途的平台.
- 获得的洞察力可以指导用于离子和质子运输的先进人工膜的设计.
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