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.
引用
收藏
页码:314 / 318
页数:5
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