Freezing cells made safer thanks to new polymer

Cell freezing (cryopreservation)—which is essential in cell transfusions as well as basic biomedical research—can be dramatically improved using a new polymeric cryoprotectant, discovered at the University of Warwick, ...

Birth of four foals from genotyped, cryopreserved embryos

IFCE and INRA announced that, for the first time ever in Europe, four foals were successfully born as the result of the transfer of genotyped and cryopreserved embryos. The goal of this work is to better understand embryonic ...

Cryopreservation: A chance for highly endangered mammals

Oocytes of lions, tigers and other cat species survive the preservation in liquid nitrogen. Scientists of the Leibniz Institute for Zoo and Wildlife Research (IZW) in Berlin succeeded in carrying out cryopreservation of felid ...

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Cryopreservation is a process where cells or whole tissues are preserved by cooling to low sub-zero temperatures, such as (typically) 77 K or −196 °C (the boiling point of liquid nitrogen). At these low temperatures, any biological activity, including the biochemical reactions that would lead to cell death, is effectively stopped. However, when cryoprotectant solutions are not used, the cells being preserved are often damaged due to freezing during the approach to low temperatures or warming to room temperature.

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