Comparison of the low-temperature crystallization of glasses in the ternary systems H2O-NaCl-dimethyl sulfoxide and H2O-NaCl-glycerol

Journal Article (Review;Journal)

Differential thermal analysis studies have resulted in quantitative evaluation of the transformation kinetics of unstable glassy phases formed during cooling of solutions from equivalent isoplethal sections in the H 2O-NaCl-dimethyl-sulfoxide (DMSO) and H2O-NaCl-glycerol ternary systems. These ternary systems are of particular importance in the field of cryobiology, where knowledge of glassy phases may be especially crucial for long-term storage of biological materials at cryogenic temperatures. Activation energies for devitrification of glasses in both systems have been determined to be approximately 13 kcal/mole. The glasses were found to have approximately equal long-term stabilities. The DMSO-containing glasses appear to be more complex than glycerol-containing glasses because of the occurrence of a relatively high-temperature ternary eutectic reaction. The study of these systems appears to be a unique area for the cooperation of physical and biological scientists.

Full Text

Duke Authors

Cited Authors

  • Cocks, FH; Hildebrandt, WH; Shepard, ML

Published Date

  • December 1, 1975

Published In

Volume / Issue

  • 46 / 8

Start / End Page

  • 3444 - 3448

International Standard Serial Number (ISSN)

  • 0021-8979

Digital Object Identifier (DOI)

  • 10.1063/1.322066

Citation Source

  • Scopus