Destructuring effect of trehalose on the tetrahedral network of water:: a Raman and neutron diffraction comparison

被引:46
作者
Branca, C
Magazù, S
Migliardo, F
Migliardo, P
机构
[1] Univ Messina, Dipartimento Fis, I-98166 Messina, Italy
[2] Univ Messina, INFM, I-98166 Messina, Italy
关键词
aqueous solution; neutron diffraction;
D O I
10.1016/S0378-4371(01)00517-9
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Results on trehalose/water solutions by neutron diffraction are reported. The analysis of the partial structure factors obtained by neutron diffraction on trehalose/water solutions is interpreted in terms of a destructuring effect of trehalose on the tetrahedral H-bond network of water. This hypothesis, suggested by a previous analysis of the Raman intramolecular OH stretching band, can account for the greater cryoprotective action of trehalose on biological structures. (C) 2002 Elsevier Science B.V. All rights reserved.
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页码:314 / 318
页数:5
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