Scientists have preserved human organs at subzero temperatures for the first time, potentially widening the window of opportunity for transplants. A technique called supercooling tripled the amount of time that human livers can be preserved without damage.
Currently, donor organs can be stored safely on ice for up to 9 hours on average in a preservation solution ranging from 4°C to 8°C. Lower temperatures preserve organs longer but essentially cause frostbite, rendering them unusable. Supercooling solves this problem by preventing organs from freezing in subzero temperatures.
Abbasi J. Supercooling Triples Liver Preservation Time. JAMA. 2019;322(18):1756. doi:10.1001/jama.2019.17613
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