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Measure by measure: X-rays show viral transformation

Date: Feb 1, 2017

Author: David Bradley

A new insight into how viruses replicated based on X-ray crystallography work by a team at Thomas Jefferson University could ultimately lead to new antiviral drugs to treat pathogenic DNA viruses.

Read More thumbnail image: Measure by measure X-rays show viral transformation

Crystallising carbon capture: X-ray study

Date: Jan 15, 2017

Author: David Bradley

A simple, yet reliable, process for trapping carbon dioxide directly from the atmosphere involves the crystallisation of a guanidine sorbent. X-ray diffraction reveals the structural details.

Read More thumbnail image: Crystallising carbon capture X-ray study

Journal Highlight: Uncertainty in flow stress measurements using X-ray diffraction for sheet metals subjected to large plastic deformations

Date: Jan 9, 2017

Author: spectroscopyNOW

The propagation of four selected elements of experimental error has been studied during X-ray diffraction measurements of flow stresses of polycrystalline sheet metal specimens subjected to large plastic deformation.

Read More thumbnail image: Journal Highlight Uncertainty in flow stress measurements using X-ray diffraction for sheet metals subjected to large plastic deformations

Nano insights: X-ray spillover

Date: Jan 6, 2017

Author: David Bradley

Catalysis underpins eighty percent of the products of the chemical industry it is also critical to reducing pollution from vehicle exhaust gases. Researchers at the Paul Scherrer Institute in Villigen and ETH Zurich have developed a method for improving the precision of analytical experiments used to investigate catalytic processes.

Read More thumbnail image: Nano insights X-ray spillover

Asthma attack: Anti-inflammatory X-rayed

Date: Dec 15, 2016

Author: David Bradley

A new X-ray crystallographic study of the anti-inflammatory drug oxaprozin may lead to a new combined asthma therapy, according to research published by Singapore's Agency for Science, Technology and Research (A*STAR) in the journal RSC Advances.

Read More thumbnail image: Asthma attack Anti-inflammatory X-rayed

Journal Highlight: Fabrication and testing of a newly designed slit system for depth-resolved X-ray diffraction measurements

Date: Dec 5, 2016

Author: spectroscopyNOW

A new system of slits called spiderweb slits has been developed for depth-resolved powder or polycrystalline X-ray diffraction measurements.

Read More thumbnail image: Journal Highlight Fabrication and testing of a newly designed slit system for depth-resolved X-ray diffraction measurements

Double salt: Negative platinum X-rayed

Date: Dec 1, 2016

Author: David Bradley

The first intermetallic double salt containing the noble metal, platinum, has been synthesised by researchers at the US Department of Energy's Ames Laboratory in Ames, Iowa. The team used X-ray studies to verify their method.

Read More thumbnail image: Double salt Negative platinum X-rayed

X-Radiation damage: Testing the pulse

Date: Nov 15, 2016

Author: David Bradley

X-rays can damage crystals and so precise structure determinations of fragile proteins is often stymied by the very technique one hopes to use. Serial femtosecond crystallography can circumvent this problem where a rapid fire snapshot is obtained before the protein is obliterated. A study of the effects of using this technique in a study of photosystem II helps map the damage as it occurs.

Read More thumbnail image: X-Radiation damage Testing the pulse

Journal Highlight: Application of high-energy polarized energy-dispersive x-ray fluorescence spectrometry to the determination of trace levels of As, Hg, and Pb in certifiable color additives

Date: Nov 7, 2016

Author: spectroscopyNOW

High-energy polarized energy-dispersive XRF spectrometry has been compared with wavelength-dispersive x-ray fluorescence spectrometry and ICPMS for the analysis of trace As, Hg, and Pb in certifiable color additives.

Read More thumbnail image: Journal Highlight Application of high-energy polarized energy-dispersive x-ray fluorescence spectrometry to the determination of trace levels of As Hg and Pb in certifiable color additives

Pollock's paints: Modern art X-rayed

Date: Nov 1, 2016

Author: David Bradley

A non-invasive study using macro X-ray fluorescence mapping (MA-XRF) and multivariate curve resolution-alternating least squares (MCR-ALS) analysis has been used to work out what paints Jackson Pollock used to create his work Number 1A from 1948, the analysis also suggests in what order the drips may have been applied.

Read More thumbnail image: Pollocks paints Modern art X-rayed
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