DOROTHY CROWFOOT HODGKIN (1910- 94)

1934 – England

Photograph of Dorothy Mary Hodgkin OM, FRS (12 May 1910 – 29 July 1994), née Crowfoot,  a British chemist, credited with the development of protein crystallography. Dorothy Crowfoot was born in Cairo on May 12th, 1910 where her father, John Winter Crowfoot was working in the Egyptian Education Service. ©

DOROTHY CROWFOOT HODGKIN

‘X-ray diffraction’

X-ray crystallography. X-rays are unique in that their wavelength is about the length of bonds within molecules. When X-rays hit a crystallized molecule, the electrons surrounding each atom cause the beam to bend. Because there are many atoms the result is that when the X-rays exit the crystal and fall onto a photographic plate, they produce a series of light and dark patches. Measuring the intensity and relative position of each patch indicates the relative positions of atoms within the crystal.

photo of Dorothy Hodgkin ©

With her co-worker John Desmond Bernal (1901-1971) Hodgkin produced the first diffraction patterns for proteins.

picture of the Nobel medal - link to nobelprize.org

Wikipedia-logo © (link to wikipedia)

NEXT buttonTIMELINE

NEXT button - X-RAY CRYSTALLOGRAPHYX-RAY CRYSTALLOGRAPHY

Advertisements