21st Century Medicine (21CM) is a cryobiological research company focused on the development of perfusates and protocols for viable long-term cryopreservation of human organs, tissues and cells at temperatures below â100 °C through the use of vitrification. The firm has developed a platform technology focused on the creation and commercialization of hypothermic preservation and cryopreservation techniques that enable protection, preservation, transportation, storage & future use of valuable living system