X-ray diffraction crystallography
X-ray diffraction crystallography A method of analysis in which an X-ray beam of known wavelength is directed at a crystal, and the beam is diffracted by reflections off planes of atoms in the crystal. By recording the angular positions of diffracted beams, the spacing between atomic planes can be determined according to the Bragg equation,
nλ = 2
d sinθ (see
BRAGG'S LAW). The procedure is repeated for various directions in the crystal and a model of its internal structure established. In geology, the technique is used to identify minerals.
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 "The Economist (US)")
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X-rays mark the spots. (X-ray crystallography history, part 2)
Magazine article from: The Economist (US); 11/21/1992; 700+ words
; ...crest of a wave X-ray crystallography was developed by William...share a Nobel prize. X-rays are like light waves...what happened to the X-rays as they passed through...itself. To understand X-ray crystallography, remember two things...
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X-Ray Crystallography for Molecular Structure Determination.
Newspaper article from: Instrument Business Outlook; 12/31/2000; 700+ words
; ...utilizes single crystal x-ray diffractometry...imaging, advances in crystallography are integral to the...created and explored. X-ray diffraction...analysis using x-ray diffraction first...stronger source of x-rays and the use of curved...specifically for ...
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Molecular movies.(time-resolved X-ray crystallography )(Brief Article)(Illustration)
Magazine article from: Chemistry and Industry; 6/26/2000; ; 700+ words
; ...the reflection or diffraction of X-rays by electron clouds could be used...elucidation technique in chemistry, X-ray crystallography, had begun. In 1958, we got our first glimpse of a protein by X-ray crystallography when John...
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Single-crystal x-ray crystallography enters adolescence.
Newspaper article from: Instrument Business Outlook; 5/15/2004; 700+ words
; ...proteins have been mapped using x-ray crystallography. In fact, of the 1,273 structures...structure was determined using x-ray crystallography, growing viable crystals...that could adequately diffract x-rays could take months or even years...
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Following Reactions with X-ray Crystallography
Magazine article from: The Scientist; 12/20/2004; ; 700+ words
; ...variation called time-resolved X-ray crystallography to study contraction of the...in time." Time-resolved crystallography describes any crystallographic...rotating crystal with monochromatic X-rays. While the Laue technique allows...
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Astex Technology Acquires Novel Robotic Technology for High Throughput X-Ray Crystallography.
News Wire article from: PrimeZone Media Network; 6/27/2001; 700+ words
; ...throughput of Astex's x-ray crystallography for rapid protein structure...will increase the throughput of x-ray crystallography by 3-5 times compared to manual...of the protein into a beam of x-rays. The x-rays bombard the crystal...
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'X-Ray Crystallography of Biomacromolecules' Covers the Theory, Practice and Latest Achievements in X-Ray Crystallography.
Business Wire; 3/15/2007; 700+ words
; ...has announced the addition of X-Ray Crystallography of Biomacromolecules: A Practical...contributors to the progress of protein crystallography, this practical guide contains...practice and latest achievements in x-ray crystallography, such that...
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Accelerating x-ray crystallography
Magazine article from: The Scientist; 1/13/2003; ; 700+ words
; ...years, the process of X-ray crystallography has moved at a tortoise...structure determination by X-ray crystallography...the-art facility for X-ray data collection. Beam...for HT macromolecular crystallography, but limited facilities...
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Astex and Daresbury Laboratory Announce Agreement to Accelerate Drug Discovery Using High Capacity X-ray Crystallography (with link).
News Wire article from: PrimeZone Media Network; 5/9/2001; 700+ words
; ...dedicated X-ray synchrotron radiation...forefront of protein crystallography for the last...through to hard X-rays. The emitted...investigated using X-rays. Astex is a...High Throughput X-ray crystallography (HTX(tm...
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Protein leads: high throughput X-ray crystallography could lead to new drug candidates and improve their success rates in clinical trials. (HTS).(high-throughput screening)
Magazine article from: Chemistry and Industry; 7/7/2003; ; 700+ words
; ...Astex uses high-throughput X-ray crystallography methods to study protein-ligand...Our high-throughput X-ray crystallography technology is...is applying high-throughput X-ray crystallography to a variety of families of targets...
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X-ray Crystallography
Book article from: Medical Discoveries
X-ray crystallography X-ray crystallography was first developed as a means of determining the nature of X-rays themselves. It was not intended to be a research tool. In...
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X-ray crystallography
Book article from: The Columbia Encyclopedia, Sixth Edition
X-ray crystallography the study of crystal structures through X-ray diffraction...phenomenon, known as X-ray diffraction, occurs...wavelength of X-rays and the interatomic...sodium chloride using X-ray crystallography, and developed...
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X–ray Crystallography
Encyclopedia entry from: The Gale Encyclopedia of Science
X – ray Crystallography X-ray crystallography is a laboratory technique used...More specifically known as x-ray diffraction, the technique is...interference pattern produced as x rays pass through the three-dimensional...
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X-ray diffraction crystallography
Book article from: A Dictionary of Earth Sciences
X-ray diffraction crystallography A method of analysis in which an X-ray beam of known wavelength is directed at a crystal, and the beam is diffracted by reflections off planes of atoms in the crystal. By recording the angular positions of...
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Protein Crystallography
Book article from: World of Microbiology and Immunology
...the x rays. If the x rays encounter a film after...makes up the crystal. Crystallography is a powerful tool that...of many molecules. Crystallography data was used, for...are also amenable to x-ray crystallography study...
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