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  2. Photo 51 - Wikipedia

    en.wikipedia.org/wiki/Photo_51

    Photo 51 is an X-ray based fiber diffraction image of a paracrystalline gel composed of DNA fiber [1] taken by Raymond Gosling, [2] [3] a postgraduate student working under the supervision of Maurice Wilkins and Rosalind Franklin at King's College London, while working in Sir John Randall's group.

  3. Maurice Wilkins - Wikipedia

    en.wikipedia.org/wiki/Maurice_Wilkins

    Maurice Hugh Frederick Wilkins CBE FRS (15 December 1916 – 5 October 2004) [2] was a New Zealand-born British biophysicist and Nobel laureate whose research spanned multiple areas of physics and biophysics, contributing to the scientific understanding of phosphorescence, isotope separation, optical microscopy, and X-ray diffraction.

  4. Raymond Gosling - Wikipedia

    en.wikipedia.org/wiki/Raymond_Gosling

    During the next two years, the pair worked closely together to perfect the technique of X-ray diffraction photography of DNA and obtained at the time the sharpest diffraction images of DNA. They produced the first X-ray diffraction photographs of the "wet form B" (B-DNA) paracrystalline arrays of highly hydrated DNA. In 1952 Gosling made the ...

  5. Molecular Structure of Nucleic Acids: A Structure for ...

    en.wikipedia.org/wiki/Molecular_Structure_of...

    Crick, however, knowing the Fourier transforms of Bessel functions that represent the X-ray diffraction patterns of helical structures of atoms, correctly interpreted further one of Franklin's experimental findings as indicating that DNA was most likely to be a double helix with the two polynucleotide chains running in opposite directions ...

  6. X-ray diffraction - Wikipedia

    en.wikipedia.org/wiki/X-ray_diffraction

    Other forms of elastic X-ray scattering besides single-crystal diffraction include powder diffraction, small-angle X-ray scattering and several types of X-ray fiber diffraction, which was used by Rosalind Franklin in determining the double-helix structure of DNA. In general, single-crystal X-ray diffraction offers more structural information ...

  7. William Astbury - Wikipedia

    en.wikipedia.org/wiki/William_Astbury

    William Thomas Astbury FRS (25 February 1898 – 4 June 1961) was an English physicist and molecular biologist who made pioneering X-ray diffraction studies of biological molecules. [1]

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  9. Francis Crick - Wikipedia

    en.wikipedia.org/wiki/Francis_Crick

    After the first crude X-ray diffraction images of DNA were collected in the 1930s, William Astbury had talked about stacks of nucleotides spaced at 3.4 angström (0.34 nanometre) intervals in DNA. A citation to Astbury's earlier X-ray diffraction work was one of only eight references in Franklin's first paper on DNA. [45] Analysis of Astbury's ...