Scientists have come a step closer to successfully preserving organs at extremely cold temperatures without damaging them.

Until now, attempts to cryopreserve whole organs have largely failed because the cells are often killed or damaged during the freezing and thawing processes.

Researchers at 21st Century Medicine in Rancho Cucamonga, California have now reported freezing one rabbit kidney for 25 minutes at -22°C and another at -45°C in a process that left them apparently able to support life.

More here.