What is the cryopreservation technique for sperm, egg & embryo?

The cryopreservation technique for sperm, eggs, and embryos is a complex process. After collection, the samples undergo a process called vitrification, which involves rapid freezing in a high concentration of cryoprotectants. These cryoprotectants play a crucial role in preventing ice crystal formation, which can damage the biological cells during the freezing process. The samples are then preserved in liquid nitrogen at ultra-low temperatures until they are needed for future use. This cryopreservation technique is essential for the long-term preservation of sperm, eggs, and embryos, maintaining their viability and fertility potential.