PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY
Scientist preparing blood for cryopreservation, a means of cold-storing blood for future use in transfusions. Freezing and controlled thawing of blood is also used to produce cryoprecipitates, an example of which is the residue obtained from frozen blood plasma that has been thawed at 4 degrees C. This residue is rich in Factor VIII, the clotting agent used to control bleeding in haemophilia.
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