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Mottronics: Technology in transition

Date: Mar 1, 2014

Author: David Bradley

Resonant X-ray scattering has been used to investigate the conducting and insulating phases of ultra-thin films of Mott materials by applying an epitaxial strain to the crystal lattice. This is an important step on the road to a new technology based on the transition from metal to insulator known as "Mottronics".

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Protein X-rays: Beating the law of averages

Date: Feb 15, 2014

Author: David Bradley

Computational biologists have demonstrated that taking an average X-ray snapshot of a crystallized protein masks much of the structural heterogeneity and the dynamics inherent in a protein. The work suggests that alternative approaches might be needed to extract information about proteins dynamics from X-ray data.

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Journal Highlight: Recent advances in ytterbium-based contrast agents for in vivo X-ray computed tomography imaging: Promises and prospects

Date: Feb 10, 2014

Author: spectroscopyNOW

This review summarizes the development of ytterbium-based CT contrast agents and highlights the design and applications of yterrbium-based nanoparticulate CT contrast agents.

Read More thumbnail image: Journal Highlight Recent advances in ytterbium-based contrast agents for in vivo X-ray computed tomography imaging Promises and prospects

Stellar outburst: X-raying this year's supernova

Date: Feb 1, 2014

Author: David Bradley

Astronomers have planned observations using the Hubble Space Telescope operated by NASA and the European Space Agency as well as NASA's Chandra X-ray Observatory, Nuclear Spectroscopic Telescope Array (NuSTAR), Fermi Gamma-ray Space Telescope, and Swift missions in order to glean as much information about the recent supernova flare-up SN 2014J, in galaxy M82 as possible.

Read More thumbnail image: Stellar outburst X-raying this years supernova

Journal of X-ray Spectrometry: Special Issue on Forensic Science

Date: Jan 17, 2014

Author: spectroscopyNOW

Discover latest research on how complementary X-ray spectrometry methods may assist forensic investigations of the future – and could have a significant impact on police investigations.

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Super volcano: Self control revealed by synchrotron

Date: Jan 15, 2014

Author: David Bradley

The risk of a supervolcano eruption is, according to geochemical synchrotron X-ray studies carried out by scientists in Europe and Japan almost entirely associated with magma pressure and needs no external trigger. Details are reported in two back-to-back papers in the journal Nature Geosciences this month.

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Journal Highlight: Forensic analysis of arsenic poisoning in Japan by synchrotron radiation X-ray fluorescence

Date: Jan 13, 2014

Author: spectroscopyNOW

The flawed use of synchrotron radiation X-ray fluorescence analysis for forensic investigation purposes in an arsenic poisoning case from 25 July 1998, Japan, is reviewed by reference to the original reports.

Read More thumbnail image: Journal Highlight Forensic analysis of arsenic poisoning in Japan by synchrotron radiation X-ray fluorescence

Crystals under pressure: Questioning bonds

Date: Jan 1, 2014

Author: David Bradley

Theoretical crystallographer Artem Oganov is about to turn the world of ionic solids upside down. He and his colleagues have demonstrated that, under modest pressure, that seemingly simplest of salts, sodium chloride, does not follow the usual rules of bonding and can form materials prohibited by conventional theory, such as NaCl3, NaCl7, Na3Cl2, Na2Cl, and Na3Cl.

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Bird flu: X-rayed

Date: Dec 15, 2013

Author: David Bradley

The emergence of novel strains of avian influenza is a concern for international health agencies. The most recently identified, H7N9, has already killed several dozen people in China. However, X-ray diffraction and glycan arrays have demonstrated that this variant has not yet acquired the necessary receptor-binding properties to make it highly infectious between people rather than from infected birds to humans.

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Journal Highlight: Fluoropolymer-based clear and white paint coatings composition analysis by X-ray fluorescence

Date: Dec 9, 2013

Author: spectroscopyNOW

A new method for the quantification of organic and inorganic phase fractions was developed for clear, white fluoropolymer/acrylic-blend paints on aluminum panels by using wavelength dispersive X-ray fluorescence spectrometry.

Read More thumbnail image: Journal Highlight Fluoropolymer-based clear and white paint coatings composition analysis by X-ray fluorescence
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