Hydrophobicity at small and large length scales
Hydrophobicity at small and large length scales
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DOI：
10.1021/jp984327m
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发表时间：
1999-06-03
影响因子：
3.3
通讯作者：
Weeks, JD
中科院分区：
文献类型：
--
作者：
Lum, K;Chandler, D;Weeks, JD
我们发展了一个统一的和普遍适用的理论，在水中小的和大的非极子物种的溶剂化。在前者中，水的氢键受到阻碍，但在溶质附近仍然存在。在后者中，氢键被耗尽，导致延长的非极层表面干燥，巨大的吸引力，以及介观长度尺度上的滞后。当非极单位的局部浓度足够高时，或者当非极表面足够大时，这种交叉发生在纳米尺度上。我们的交叉理论对蛋白质组装的稳定性和蛋白质折叠具有重要意义。
We develop a unified and generally applicable theory of solvation of small and large apolar species in water. In the former, hydrogen bonding of water is hindered yet persists near the solutes. In the latter, hydrogen bonding is depleted, leading to drying of extended apolar surfaces, large forces of attraction, and hysteresis on mesoscopic length scales. The crossover occurs on nanometer length scales, when the local concentration of apolar units is sufficiently high, or when an apolar surface is sufficiently large. Our theory for the crossover has implications concerning the stability of protein assemblies and:protein folding.