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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Dimension-Controlled Dewetting in Hydrophobic Porous Nanocapsules
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Dimension-Controlled Dewetting in Hydrophobic Porous Nanocapsules

机译：疏水性多孔纳米胶囊中的尺寸控制脱水

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摘要

Water in different physical states has been attracting great interest for decades for its strong association with the origin of life, the biophysical behaviors of biomacromolecules, and the transportation of matter and energy. Structurally well-defined, monodispersed nanocapsules provide excellent opportunities to understand water under confinement. Herein a group of porous and hollow polyoxometalates with varied inner ligands have been studied to investigate the distributions of water inside them in solution states via contrast variation small angle neutron scattering (CV-SANS) techniques. Meanwhile, molecular dynamics simulations have been conducted to cross-examine fitting results of SANS data and provide structural details of the formation of such water distribution patterns. Our work suggests that the densities of water in the core of nanocapsules rely highly on the dimensions of hydrophobic confinement space (cores inside nanocapsules) and can approach the dewetting state at the critical dimension, ca. 1.1 nm.
机译：不同的身体州的水一直吸引了几十年来兴趣与生命起源，生物传染性的生物物理行为以及物质和能源的运输。结构明确定义，单分散的纳米胶囊提供了理解限制的水的绝佳机会。这里，已经研究了一种具有变化内配体的多孔和中空多氧化胍酸盐，以通过对比度变化小角度散射（CV-SAN）技术来研究它们在溶液状态中的水分布。同时，已经进行了分子动力学模拟以交叉检查SANS数据的拟合结果，并提供这种水分布模式的形成的结构细节。我们的工作表明，纳米胶囊核心中的水密度依赖于疏水限制空间（纳米骨内芯）的尺寸，并且可以在临界维度，CA处接近脱模状态。 1.1 nm。

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