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Researchers from the PRC safely thawed brain tissue that had been cryopreserved and did not damage it.
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Cryogenic freezing of the body represents a potential method of achieving immortality. However, brain tissue reacts negatively to subzero temperatures. Since brain cells are 80 percent water, ice crystals may form during cryopreservation, damaging the cells.
Chinese experts have figured out how to harmlessly freeze brain tissue. For 21 days they have been growing brain cells in petri dishes. Then the organoids were soaked in different mixtures and subjected to freezing in liquid nitrogen. The samples were then thawed for 14 days. During this period, experts monitored which of them were least damaged.
