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Hiroshima Beach: X-ray echoes of glassy fallout

Date: May 15, 2019

Author: David Bradley

An X-ray study has proven that tiny glassy particles in the sand on Japan's Motoujina Peninsula came from the fallout of the Hiroshima atomic bomb. Geologist Mario Wannier, who was studying tiny marine life spotted the unexpected in samples of sand from the beach there and hopes his discovery will raise awareness in the scientific community and beyond.

Read More thumbnail image: Hiroshima Beach X-ray echoes of glassy fallout

Journal Highlight: Observations of X‐ray reverberation around black holes

Date: May 8, 2019

Author: spectroscopyNOW

Observations of X‐ray reverberation in active galactic nuclei and black hole X‐ray binary systems have been examined, illustrating recent advances and future perspectives in the field.

Read More thumbnail image: Journal Highlight Observations of Xray reverberation around black holes

Watch your atoms: 2D X-ray laser probe

Date: Apr 15, 2019

Author: David Bradley

An X-ray laser snapshot can allow researchers to probe two-dimensional materials on the atomic scale with a time resolution of trillionths of a second.

Read More thumbnail image: Watch your atoms 2D X-ray laser probe

Journal Highlight: Journey to the center of the protein: allostery from multitemperature multiconformer X-ray crystallography

Date: Apr 8, 2019

Author: spectroscopyNOW

The use of multitemperature multiconformer X-ray crystallo­graphy to reveal alternative conformations at different sites in a protein structure and to estimate the degree of energetic coupling between them has been discussed.

Read More thumbnail image: Journal Highlight Journey to the center of the protein allostery from multitemperature multiconformer X-ray crystallography

X-raying MOFs: Low-temperature catalysts

Date: Apr 1, 2019

Author: David Bradley

Energy-dispersive X-ray spectroscopy (EDS) element mappings derived from scanning electron microscopy (SEM) and scanning transmission electron microscopy (STEM) data have been used alongside X-ray photoelectron spectroscopy (XPS) to investigate guest confinement within a molecular organic framework (MOF) cavity with a view to the rational design of low-temperature catalysts.

Read More thumbnail image: X-raying MOFs Low-temperature catalysts

Plastic double helix: X-ray reveals details

Date: Mar 15, 2019

Author: David Bradley

X-ray crystallography has revealed the existence of a double helical structure in a synthetic macromolecule known for thirty years. The discovery could open up novel applications for the high-strength polymer called, PBDT [poly(2,2'-disulfonyl-4,4'-benzidine terephthalamide)].

Read More thumbnail image: Plastic double helix X-ray reveals details

Journal Highlight: Evaluation of X‐ray tomography contrast agents: A review of production, protocols, and biological applications

Date: Mar 11, 2019

Author: spectroscopyNOW

Molecule‐based and nanoparticle‐based contrast agents used in biological applications to enhance the image quality in X-ray tomography have been compiled and reported.

Read More thumbnail image: Journal Highlight Evaluation of Xray tomography contrast agents A review of production protocols and biological applications

Uranium chelation: X-ray stuctrure

Date: Mar 1, 2019

Author: David Bradley

A chelating agent inspired by biological siderophores that soaks up uranium from aqueous solution has been studied using X-ray photoelectron spectroscopy (XPS) and elemental distribution mapping via energy-dispersive X-ray (EDX) spectroscopy analysis together with various other spectroscopic techniques.

Read More thumbnail image: Uranium chelation X-ray stuctrure

Shipwreck analysis: X-ray's smoking gun

Date: Feb 15, 2019

Author: David Bradley

 Archaeologists have used an X-ray gun to carry out an analysis of the ceramic cargo of a ship that sank in The Java Sea 800 years ago.

Read More thumbnail image: Shipwreck analysis X-rays smoking gun

Journal Highlight: Macro X‐ray fluorescence imaging spectroscopy of the suggested Santi di Tito's portrait of Galileo Galilei

Date: Feb 12, 2019

Author: spectroscopyNOW

X‐ray fluorescence imaging spectroscopy has been used to authenticate a painting of a bearded man on display at the Eremitani Museum in Padua attributed to Jacopo Tintoretto and suggested to be the lost portrait of Galileo Galilei painted by the Tuscan master Santi di Tito in 1602.

Read More thumbnail image: Journal Highlight Macro Xray fluorescence imaging spectroscopy of the suggested Santi di Titos portrait of Galileo Galilei
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