AJ PHOTO / SCIENCE PHOTO LIBRARY AJ PHOTO / SCIENCE PHOTO LIBRARY
Biological research. Researcher preparing frozen cell samples stored in a cryostat for examination under a microscope. A cryostat is used in the process of cyropreservation. Cells can be preserved by cooling them to sub-zero temperatures. This effectively stops any biological activity that could lead to cell death. Photographed at the Genethon Laboratory, near Paris, France.
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