Dynamics of protein hydration water

被引：11
|
作者：
Wolf, M. [1 ]
Emmert, S. [1 ]
Gulich, R. [1 ]
Lunkenheimer, P. [1 ]
Loidl, A. [1 ]
机构：
[1] Univ Augsburg, Expt Phys 5, Ctr Elect Correlat & Magnetism, D-86135 Augsburg, Germany
来源：
PHYSICAL REVIEW E | 2015年 / 92卷 / 03期
关键词：
BAND DIELECTRIC-SPECTROSCOPY; INELASTIC NEUTRON-SCATTERING; BOVINE SERUM-ALBUMIN; SUPERCOOLED WATER; LIQUID TRANSITION; GLASS-TRANSITION; AQUEOUS-SOLUTION; BOUND WATER; DISPERSION; BEHAVIOR;
D O I：
10.1103/PhysRevE.92.032727
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We present the frequency-and temperature-dependent dielectric properties of lysozyme solutions in a broad concentration regime, measured at subzero temperatures, and compare the results with measurements above the freezing point of water and on hydrated lysozyme powder. Our experiments allow examining the dynamics of unfreezable hydration water in a broad temperature range. The obtained results prove the bimodality of the hydration shell dynamics. In addition, we find indications of a fragile-to-strong transition of hydration water.
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页数：6
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