 Dorothy Hodgkin

Dorothy Mary Crowfoot Hodgkin  (12 May 1910 – 29 July 1994) was a British chemist who advanced the technique of X-ray crystallography to determine the structure of biomolecules, which became an essential tool in structural biology.Among her most influential discoveries are the confirmation of the structure of penicillin as previously surmised by Edward Abraham and Ernst Boris Chain; and the structure of vitamin B12, for which in 1964 she became the third woman to win the Nobel Prize in Chemistry.