Portrait of Edwin J. Cohn (1892-1953). Cohn was a professor of biological chemistry at Harvard Medical School and one of the first to apply basic physical chemical principles to study amino acids and proteins. During World War II, Cohn directed research efforts to develop methods for separating human blood plasma into different components for clinical use in the Armed Forces. These efforts were eventually scaled up to process blood donations into albumin to treat soldiers suffering from shock.
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