Cryopreservative

Cryopreservation is a method of preserving biological objects by freezing them 1

It differs from conventional preservation only in the method of storage and the composition of the preservative solution. Since air is not able to replace water when freezing, and freezing without air access is almost impossible, solutions used for cryopreservation slow down the processes of decomposition in tissues, but do not interfere with the respiration of cells, as does the usual alcohol solution. Unlike dehydration, cryopreservation makes it possible to preserve the respiratory activity of the cell and its entire eukaryotic membrane, which, in turn, contains the nucleus and other cellular organelles.