lyonisation

Lyonisation is a process of converting a liquid into a solid by freezing it. This term is often used in the context of cryopreservation, where it refers to the freezing of biological samples, such as cells, tissues, or organs, to preserve them for future use. The process involves rapidly cooling the sample to very low temperatures, typically below -135 degrees Celsius, to prevent the formation of ice crystals that can damage cellular structures. Once frozen, the sample can be stored at these low temperatures for extended periods without significant degradation. Lyonisation is a crucial technique in fields such as medicine, biology, and agriculture, enabling the long-term storage and transportation of biological materials. The term "lyonisation" is derived from the French word "lyophilisation," which means freeze-drying, but in this context, it specifically refers to the freezing process itself.