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Journal Highlight: Gilding and pigments of Renaissance marble of Abatellis Palace: non-invasive investigation by XRF spectrometry

Date: Mar 11, 2013

Author: spectroscopyNOW

The chemical composition of pictorial layers and their stratigraphical distribution on renaissance marble sculptures from Abatellis Palace, Palermo, have been characterised by UV-vis fluorescence and XRF measurements.

Read More thumbnail image: Journal Highlight Gilding and pigments of Renaissance marble of Abatellis Palace non-invasive investigation by XRF spectrometry

A message for you: Mercury's turbulent past

Date: Mar 1, 2013

Author: David Bradley

X-ray spectroscopy and astronomical analyses reveal that Mercury - the planet closest to the Sun - may have had a vast, roiling ocean of liquid rock, or magma, during its very early history some 4.5 billion years ago.

Read More thumbnail image: A message for you Mercurys turbulent past

Pablo Picasso: Decorator

Date: Feb 15, 2013

Author: David Bradley

What type of paint did one of the most renowned and infamous artists of the twentieth, century, Pablo Picasso, use in his work - matte, gloss or emulsion? The Art Institute of Chicago and scientists at Argonne National Laboratory think they know having used a hard X-ray nanoprobe to help them unravel what is a decades-long debate among art scholars.

Read More thumbnail image: Pablo Picasso Decorator

Journal Highlight: Comparison of plain vertebral X-ray and dual-energy X-ray absorptiometry for the identification of older women for fracture prevention in primary care

Date: Feb 11, 2013

Author: spectroscopyNOW

The effects of the amended dual-energy X-ray absorptiometry diagnostic cut-off in the Australian Pharmaceutical Benefits Scheme for primary fracture prevention therapy with alendronate on case finding and cost have been assessed in older women.

Read More thumbnail image: Journal Highlight Comparison of plain vertebral X-ray and dual-energy X-ray absorptiometry for the identification of older women for fracture prevention in primary care

Hydrogen from silicon: Just add water

Date: Feb 1, 2013

Author: David Bradley

Two techniques, X-ray photoelectron spectroscopy (XPS) and time-of-flight-secondary-ion-mass-spectrometry (TOF-SIMS), have been used in parallel to show how adding water to silicon can generate hydrogen. The work might take us another step closer to the so-called carbon-free hydrogen economy.

Read More thumbnail image: Hydrogen from silicon Just add water

Brewing up crystal structures: Hoppy bitterness

Date: Jan 15, 2013

Author: David Bradley

During brewing, beer obtains its bitter flavour from the bitter iso-alpha acids that come from hops. In the journal Angewandte Chemie, scientists now report that they have used X-ray crystallography to determine the absolute configurations of these humulones and isohumulones, as well as several of their derivatives.

Read More thumbnail image: Brewing up crystal structures Hoppy bitterness

Journal Highlight: X-ray imaging of leaf venation networks

Date: Jan 14, 2013

Author: spectroscopyNOW

Commercial and synchrotron X-ray imaging has been applied to leaf venation networks allowing major and minor veins to be consistently visualised at a rate of several hundred samples per day.

Read More thumbnail image: Journal Highlight X-ray imaging of leaf venation networks

Stomaching X-rays: Gastric microbe attack

Date: Jan 7, 2013

Author: David Bradley

An X-ray investigation has revealed a potential new way to attack the common gastric infection Helicobacter pylori, a pathogen known to cause ulcer and significantly increase the risk of developing stomach cancer.

Read More thumbnail image: Stomaching X-rays Gastric microbe attack

Journal Highlight: Classification and discrimination of some cosmetic face powders using XRF spectrometry with chemometric data analysis

Date: Dec 17, 2012

Author: spectroscopyNOW

Wavelength-dispersive X-ray fluorescence spectrometry has been employed for multi-elemental analysis of cosmetic powders, with cluster analysis and principal components analysis discriminating between samples of traditional or mineral formulation.

Read More thumbnail image: Journal Highlight Classification and discrimination of some cosmetic face powders using XRF spectrometry with chemometric data analysis

Diffract and destroy: 3D sleeping sickness enzyme

Date: Dec 12, 2012

Author:

The X-ray structure of an enzyme crucial to the life cycle of the microbial parasite that causes African trypanosomiasis (sleeping sickness) in humans has been determined through an international collaboration.

Read More thumbnail image: Diffract and destroy 3D sleeping sickness enzyme
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