Mildred Cohn, Ph.D., research associate in biological chemistry from 1949-1960, died Oct. 12, 2009, in Philadelphia. She was 96.
Cohn worked in the lab of Carl and Gerty Cori, who received the Nobel Prize in physiology or medicine in 1947.
Her research pioneered the use of stable isotopes to study metabolic processes as well as mechanisms of enzymatic reactions. She was designated a career investigator by the American Heart Association, which funded her studies of adenosine triphosphate (ATP). She was among the first to apply electron spin and nuclear magnetic resonance to investigate metabolism. During the course of her career, Cohn worked in the laboratories of and co-authored scientific papers with six Nobel Laureates and was granted honorary doctorates from at least nine schools.