Cryo-Preservation

Cryo-preservation is a technique used to maintain cells, tissues, or biological samples at extremely low temperatures, typically using liquid nitrogen at -196°C. Freezing halts all biological activity and metabolic processes, preventing decay or deterioration over time. This method allows the long-term storage and future revival of living materials, such as sperm, eggs, or even entire organisms. Carefully controlled cooling and the use of cryoprotectants help prevent ice crystal formation, which can damage cell structures. Essentially, cryo-preservation "pauses" life processes, enabling biological materials to be stored safely for extended periods and reactivated when needed.