Of possible long-term relevance to cryonics: "A technology used to freeze sushi is solving a dilemma for organ storage. By borrowing tech used to preserve high-end food delicacies, a Hiroshima University research group proved it possible to safely freeze whole teeth and their delicate attaching tissues. As long as the freezer stays cold, the folks at Hiroshima U. think your teeth could be stored for 40 years, no problem. But the sushi-storage system isn't a one trick pony: internal organs could be next thanks to the magic of supercooling. In typical cryo-storage, fast freezing of organs requires poisonous levels of anti-freeze, and let's face it, no one wants a poisoned kidney transplanted into their body. But slower freezing causes cell popping ice crystals to form. So, what do you do to prevent ice crystals during slow freezing? Use magnets. ABI is the Japanese company producing the freezer system. ABI's 'Cells Alive System' (CAS) vibrates water with magnetic fields, preventing freezing, even at supercool temperatures of -10 degrees Celsius (According to the Patent.) When the field is turned off, the water in the food instantly freezes. No time for ice growth. ... A very tricky part of tooth preservation is keeping tooth ligaments alive, or even some of the ligament cells. Implanting ligaments is important. We have ligaments attached to teeth because the force of chewing could grind our chompers out of our jaws. When the research team tried slow freezing a whole fresh tooth without the CAS magnetic fields, the ligaments didn't survive and were severely damaged. However, a CAS magnetically vibrated tooth's ligaments survived. CAS frozen ligament cells grew as well as those from a fresh tooth, and showed only minor damage."