What is a cryoprotectant?
Alcor: FAQ - TechnicalA cryoprotectant is a small molecule that easily penetrates inside cells and that depresses the freezing point of water. Glycerol, ethylene glycerol, and dimethylsulfoxide (DMSO) are examples.
Related QuestionsCRYONICS − FREQUENTLY ASKED QUESTIONS (FAQ)A cryoprotectant is an antifreeze substance that prevents or reduces ice-crystal formation. The use of cryoprotectants in cryonics reduces freezing damage − or may even eliminate ice crystals entirely (vitrification). Ethylene glycol cryoprotectant is the antifreeze used in automobiles. Propylene glycol is the cryoprotectant used in ice cream to reduce ice crystals and give a smooth texture.Related Questions
How is cryoprotectant administered?
Alcor: FAQ - TechnicalIn cryonics, cryoprotectant solutions are administered through the circulatory system of the patient so that cryoprotectant enters almost every cell of the body. This process is done near a temperature of O°C (32°F) over several hours, during which the cryoprotectant concentration slowly rises to more than 8 Molar (greater than 50%). (Isolated organs are subjected to similar protocols in organ banking research.
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