Freeze-drying of solutions of serum albumin containing dimethylsulfoxide

Autor: Basil T. Doumas, Theodore I. Malinin, Billy W. Perry, Donald Greiff
Rok vydání: 1976
Předmět:
Zdroj: Cryobiology. 13(2)
ISSN: 0011-2240
Popis: Although several publications have emphasized the inadvisability of drying biologic materials containing dimethylsulfoxide (DMSO) by sublimation of ice in vacuo, the current studies showed a relationship to exist between the relative concentrations of serum albumin, human, and dimethylsulfoxide for successful or unsuccessful freeze-drying of albumin-DMSO solutions. The cycle of freeze-drying for the successful drying of an albumin-DMSO solution was a modification of the cycle used for the successful drying of suspensions of measles virus by sublimation of ice in vacuo. Using nuclear magnetic resonance spectroscopy, a strong, sharp signal for DMSO was obtained in preparations of freeze-dried albumin-DMSO solutions rehydrated with deuterium oxide, D2O.
Databáze: OpenAIRE