Glass transition in aqueous solutions of glucose. Molecular dynamics simulation

被引:35
作者
Caffarena, ER
Grigera, JR
机构
[1] UNIV NACL LA PLATA, CONICET, IFLYSIB, RA-1900 LA PLATA, BUENOS AIRES, ARGENTINA
[2] UNIV NACL LA PLATA, DEPT CIENCIAS BIOL, RA-1900 LA PLATA, BUENOS AIRES, ARGENTINA
关键词
glass transitions in carbohydrates; simulation of phase transitions; glucose state diagram;
D O I
10.1016/S0008-6215(97)00029-3
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
We have simulated by molecular dynamics the melting and glass transition of aqueous solution of glucose in a wide concentration range. The simulated glass transition temperature (T-g) are in good agreement with experimental values but the obtained melting temperatures of relatively diluted solutions are below the experimental ones. The 'glass' branch of the temperature-concentration state diagram is quite acceptable and opens the possibility of reliable simulation of vitrification processes in carbohydrate solutions. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码:51 / 57
页数:7
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