Cryopreservation is a process where
cells or whole
tissues are preserved by cooling to low sub-zero
temperatures, such as (typically) 77 K or −196 °C (the boiling point of
liquid nitrogen). At these low temperatures, any biological activity, including the biochemical reactions that would lead to
cell death, is effectively stopped. However, when
vitrification solutions are not used, the
cells being preserved are often damaged due to
freezing during the approach to low temperatures or warming to room temperature.
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The process of cooling and storing cells, tissues, or organs at very low or freezing temperatures to save them for future use.