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Mildred Cohn

Mildred Cohn
Mildred Cohn.jpg
Born (1913-07-12)July 12, 1913
New York City, New York, U.S.
Died October 12, 2009(2009-10-12) (aged 96)
Philadelphia, Pennsylvania, USA
Residence U.S.
Nationality United States
Fields Physical Biochemistry
Institutions University of Pennsylvania
Alma mater Hunter College, Columbia University
Doctoral advisor Harold Urey
Notable awards Garvan–Olin Medal (1963)
Elliott Cresson Medal (1975),
National Medal of Science (1982)
External video
Mildred Cohn Heritage Day 2005 Awards HD2005-MildredCohn.tif
“I didn’t intend to be an assistant for the rest of my life; so I started a new field of research”, Chemical Heritage Foundation

Mildred Cohn (July 12, 1913 – October 12, 2009) was an American biochemist who furthered understanding of biochemical processes through her study of chemical reactions within animal cells. She was a pioneer in the use of nuclear magnetic resonance for studying enzyme reactions, particularly in Adenosine triphosphate (ATP). She received the nation's highest science award, the National Medal of Science, in 1982.

Cohn's parents, childhood sweethearts Isidore Cohn and Bertha Klein Cohn, were Jewish. Her father was a rabbi. They left Russia for the United States around 1907. Mildred Cohn was born July 12, 1913 in the Bronx, where her family lived in an apartment. When Mildred was 13, her father moved the family to a Yiddish-speaking cooperative, Heim Gesellschaft, which strongly emphasized education, the arts, social justice, and the preservation of Yiddish culture.

Cohn graduated from high school at 14. She went on to attend Hunter College, which was both free and open to all qualified women, irrespective of race, religion or ethnic background. She received her Bachelor's cum laude in 1931. She managed to afford a single year at Columbia University, but was ineligible for an assistantship because she was a woman. After receiving her master's degree in 1932, she worked for the National Advisory Committee for Aeronautics for two years. Although she had a supportive supervisor, she was the only woman among 70 men, and was informed that she would never be promoted. She subsequently returned to Columbia, studying under Harold Urey, who had just won the Nobel Prize. Originally, Cohn was working to study the different isotopes of carbon. However, her equipment failed her, and she could not finish this project. She went on to write her dissertation on oxygen isotopes and earned her Ph.D. in physical chemistry in 1938.

With Urey's recommendation, Cohn was able to obtain a position as a research associate in the laboratory of Vincent du Vigneaud at Washington University in St. Louis. There Cohn conducted post-doctoral studies on sulfur-amino acid metabolism using radioactive sulfur isotopes. Cohn pioneered the use of isotopic tracers to examine the metabolism of sulfur-containing compounds. When du Vigneaud moved his laboratory to Cornell University Medical College in New York City, Cohn and her new husband, physicist Henry Primakoff, moved to New York as well.


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