The Role of Nitrogen in Cryopreservation and Biomedical Transportation

Although Nitrogen (N2) is biologically inert, it plays a critical role in cell preservation and transportation. Liquid nitrogen is currently the most widely used medium for cryopreservation, extensively applied in the long-term storage of stem cells, embryos, and other biological samples. Utilizing a nitrogen-controlled environment effectively prevents oxidation and contamination, thereby enhancing cell viability rates. Furthermore, nitrogen serves as a gaseous protective layer in the sterile packaging and transit of regenerative medicine products. While nitrogen does not directly participate in cellular repair, its physical support is fundamental to the entire regenerative medicine ecosystem.