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Journal Highlight: Study of two large‐dimension Murillo's paintings by means of macro X‐ray fluorescence imaging, point X‐ray fluorescence analysis, and stratigraphic studies

Date: Jan 15, 2019

Author: spectroscopyNOW

Two large‐dimension paintings by Murillo have been studied by macro X‐ray fluorescence scanning, point X‐ray fluorescence and stratigraphic analyses to characterize the different components of the paintings for a clearer understanding of the artist's painting technique and creative process.

Read More thumbnail image: Journal Highlight Study of two largedimension Murillos paintings by means of macro Xray fluorescence imaging point Xray fluorescence analysis and stratigraphic studies

Under pressure: X-rayed receptor

Date: Jan 15, 2019

Author: David Bradley

X-ray crystallography has been used to map the active-state structure of the angiotensin II type 1 receptor, a major target of a range of prescription medicines used to moderate blood pressure and kidney function.

Read More thumbnail image: Under pressure X-rayed receptor

Vitamin B12 receptor: Crystal structure

Date: Jan 7, 2019

Author: David Bradley

The crystal structure of the body's largest cell receptor has been determined by researchers at Aarhus University in Denmark. The endocytic receptor cubam formed by the 460-kDa protein cubilin and the 45-kDa transmembrane protein amnionless (AMN), allows vitamin B12 to be absorbed from the intestine and allows the reabsorption of proteins, including albumin from the kidney filtrate.

Read More thumbnail image: Vitamin B12 receptor Crystal structure

Journal Highlight: Feasibility study of phase‐contrast X‐ray laminography using X‐ray interferometry

Date: Dec 5, 2018

Author: spectroscopyNOW

Phase‐contrast X‐ray laminography using X‐ray interferometry has been developed for fine observation of laminar samples, illustrated for a flat limestone slab.

Read More thumbnail image: Journal Highlight Feasibility study of phasecontrast Xray laminography using Xray interferometry

Journal Highlight: Rembrandt's Old Woman Praying, 1629/30: A look below the surface using X‐ray fluorescence mapping

Date: Nov 22, 2018

Author: spectroscopyNOW

This Highlight article outlines how X-ray fluorescence (XRF) mapping was utilized to characterize Rembrandt's famous painting Old Woman Praying.

Read More thumbnail image: Journal Highlight Rembrandts Old Woman Praying 162930 A look below the surface using Xray fluorescence mapping

Nitrogen under pressure: Polymorph X-rayed

Date: Nov 15, 2018

Author: David Bradley

An unusually complex form of one of the most abundant chemical elements on Earth has been observed in the laboratory for the first time and its structure determined by X-ray crystallography.

Read More thumbnail image: Nitrogen under pressure Polymorph X-rayed

Journal Highlight: Preparation of naturally active melanin nano‐platforms chelated with barium ions as a potential X‐ray‐computed tomography contrast agent

Date: Nov 5, 2018

Author: spectroscopyNOW

PEGylated melanin nanoparticles have been prepared and reacted with barium ions to prepare a CT imaging contrast agent with X‐ray attenuation slightly higher than the commercially available iodinated contrasting agent Iohexol.

Read More thumbnail image: Journal Highlight Preparation of naturally active melanin nanoplatforms chelated with barium ions as a potential Xraycomputed tomography contrast agent

Feathered friends: X-raying the missing link

Date: Nov 1, 2018

Author: David Bradley

Modern birds evolved from theropod dinosaurs, of which the Tyrannosaurus rex is perhaps the most famous. They descended via creatures such as Archaeopteryx. Now, a new species of that grouping that more closely resembled the modern bird has been examined by UK scientists in a three-dimensional synchrotron X-ray study.

Read More thumbnail image: Feathered friends X-raying the missing link

Copper flow: Liquid metal in a crystal

Date: Oct 15, 2018

Author: David Bradley

 We might be able to build a battery thanks to research that reveals how copper ions can flow like liquid through certain crystalline materials, according to scientists in the USA.

Read More thumbnail image: Copper flow Liquid metal in a crystal

Journal Highlight: A fast X‐ray‐diffraction‐based method for the determination of crystal size distributions (FXD‐CSD)

Date: Oct 8, 2018

Author: spectroscopyNOW

Crystal size distributions of crystalline powders or polycrystalline materials have been determined by a fast X‐ray‐diffraction‐based procedure using intensity scaling from the diffraction intensities of single Bragg spots measured in spotty diffraction patterns.

Read More thumbnail image: Journal Highlight A fast Xraydiffractionbased method for the determination of crystal size distributions FXDCSD
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