Information AboutCryoprotectant |
| CATEGORIES ABOUT CRYOPROTECTANT | |
| cryobiology | |
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Conventional cryoprotectants are glycols ( Alcohol s containing at least two Hydroxyl groups), such as Ethylene Glycol , Propylene Glycol and Glycerol . Ethylene Glycol is commonly used as automobile Antifreeze and Propylene Glycol has been used to reduce ice formation in Ice Cream . Dimethyl Sulfoxide (DMSO) is also regarded as a conventional cryoprotectant. Glycerol and DMSO have been used for decades by Cryobiologist s to reduce ice formation in Cattle , Sperm and Embryo s that are cold-preserved in liquid Nitrogen . Mixtures of cryoprotectants have less Toxicity and are more effective than single-agent cryoprotectants. A mixture of Formamide with DMSO, propylene glycol and a Colloid was for many years the most effective of all artificially created cryoprotectants. Cryoprotectant mixtures have been used for Vitrification , ie, solidification without any ice formation whatsoever. Vitrification has important application in preserving embryos, Biological tissues and Organ s for Transplant . Vitrification (usually Neurovitrification ) is also used in Cryonics in an effort to eliminate freezing damage. SEE ALSO |
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