cryoprotection
Cold damage prevention
Cryoprotection is the process of protecting biological tissue from damage during freezing.
Cells can rupture when ice crystals form, so cryoprotectants—substances like glycerol or dimethyl sulfoxide—are introduced to prevent this.
The technique is essential in preserving sperm, embryos, organs for transplant, and other biological materials at extremely low temperatures.
Sugar-bound cellular proteins
- rehydrationReplacing lost water
- cold hardinessTolerance for freezing conditions
- supercoolingLiquid chilled below freezing
- hibernationProlonged winter dormancy
Liquid chilled below freezing
- non-crystallineLacking regular molecular structure
- quenchingRapid cooling process
- cryogenic storagePreservation at extremely low temperatures
- annealingHeat-softening of metals
Trihydric alcohol, viscous, sweet
- sucroseGlucose-fructose disaccharide
- polyolsCompounds with multiple hydroxyl groups
- freezing point depressionSolute lowers solidification temperature
- concentration gradientDifference in solute density
Systematic storage of biological specimens
- sperm bankingFreezing cells for future fertility
- assisted reproductionMedical conception methods
- cryosurgeryCold-based tissue destruction
- cell cultureLaboratory technique for growing tissue
glycoproteins
Sugar-bound cellular proteins
- rehydrationReplacing lost water
- cold hardinessTolerance for freezing conditions
- supercoolingLiquid chilled below freezing
supercooling
Liquid chilled below freezing
- non-crystallineLacking regular molecular structure
- quenchingRapid cooling process
- cryogenic storagePreservation at extremely low temperatures
glycerol
Trihydric alcohol, viscous, sweet
- sucroseGlucose-fructose disaccharide
- polyolsCompounds with multiple hydroxyl groups
- freezing point depressionSolute lowers solidification temperature
biobanking
Systematic storage of biological specimens
- sperm bankingFreezing cells for future fertility
- assisted reproductionMedical conception methods
- cryosurgeryCold-based tissue destruction
cryoprotectioncryodestruction
Tissue destruction via freezing
decomposition · thawing · degradation · cell lysis · necrosis