The Fundamentals of Cryopreservation
Cryopreservation is fundamentally the freezing of biological materials to temperatures less than −150°C. Cellular functions including metabolism and division stop totally at these temperatures. This guarantees that the material can be kept for years without appreciable deterioration. For fertility treatments, for instance, the widely used method known as cryopreservation lets couples save extra embryos for use later on.
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