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Journal Highlight: Exotic X-ray back-diffraction: a path toward a soft inelastic X-ray scattering spectrometer

Date: Nov 10, 2014

Author: spectroscopyNOW

Soft X-ray back-diffraction, at angles near and exactly equal to 90°, has been explored with a novel high-resolution Si(220) multi-bounce back-diffraction monochromator and an ultra-thin Si(220) crystal as the sample.

Read More thumbnail image: Journal Highlight Exotic X-ray back-diffraction a path toward a soft inelastic X-ray scattering spectrometer

Breast cancer clue: X-ray structure

Date: Nov 1, 2014

Author: David Bradley

New insights into the function of an enzyme related to the BRCA1 breast cancer protein have been revealed by US researchers in the first detailed working X-ray structure of a functionally engaged enzyme in the Polycomb Repressive Complex 1 (PRC1), a group that regulates cell development and is associated with many types of cancer.

Read More thumbnail image: Breast cancer clue X-ray structure

Dancing proteins: HIV targets

Date: Oct 15, 2014

Author: David Bradley

New targets for preventative therapies of HIV infection might now be possible thanks to new studies that reveal the 'dance' of HIV proteins on the surface of the virus that are thought to be involved in the infection of human immune cells.

Read More thumbnail image: Dancing proteins HIV targets

Journal Highlight: Validation and traceability of XRF and SEM-EDS elemental analysis results for solder in high-reliability applications

Date: Oct 13, 2014

Author: spectroscopyNOW

A procedure and calibration samples were developed for X-ray fluorescence spectrometry and scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS) analysis methods for Sn and Pb amounts in solder and coatings.

Read More thumbnail image: Journal Highlight Validation and traceability of XRF and SEM-EDS elemental analysis results for solder in high-reliability applications

Cancer detector: Graphene solution

Date: Oct 1, 2014

Author: David Bradley

Researchers have used X-ray photoelectron spectroscopy and Raman spectroscopy to confirm that bioreceptor molecules attached to a graphene biosensor exposed to cancer biomarkers can reveal the presence of these markers and so might be used as a cancer detector.

Read More thumbnail image: Cancer detector Graphene solution

Building a better vitamin: Antioxidant structure

Date: Sep 15, 2014

Author: David Bradley

Researchers have synthesized the antioxidant compound 4-(5-chloro-2-hydroxyphenylamino)-4-oxobut-2-enoic acid and obtained a crystal structure. The molecule has comparable antioxidant activity comparable to that of vitamin C, ascorbic acid, as well as demonstrable antitumour activity.

Read More thumbnail image: Building a better vitamin Antioxidant structure

Journal Highlight: Different speciation for bromine in brown and red algae, revealed by in vivo X-ray absorption spectroscopic studies

Date: Sep 8, 2014

Author: spectroscopyNOW

Noninvasive X-ray absorption spectroscopy was used to examine in vivo bromine speciation in brown and red algae, a diatom, a dinoflagellate and a natural phytoplankton sample.

Read More thumbnail image: Journal Highlight Different speciation for bromine in brown and red algae revealed by in vivo X-ray absorption spectroscopic studies

The turn of the worm: Viral infection

Date: Sep 1, 2014

Author: David Bradley

The first structure of a virus known to naturally infect nematode worms has been revealed by researchers using X-ray diffraction. Given the nematodes rank in molecular biology as a useful model for processes in humans, the structure could offer many new clues as to how viral infection occurs in humans too, thus presenting novel targets for the pharmaceutical therapies.

Read More thumbnail image: The turn of the worm Viral infection

Solar power: Crystallographic clues

Date: Aug 27, 2014

Author: David Bradley

An international research team is testing its intellectual strength using serial femtosecond crystallography with a view to teasing apart the proteins involved in photosynthesis, the process by which plants convert solar energy into carbohydrates.

Read More thumbnail image: Solar power Crystallographic clues

Fair-weather power: Solar textiles

Date: Aug 15, 2014

Author: David Bradley

Whether you're a tweed-wearing hipster or down with the kids sporting your post-modern baggy jeans, textile-based solar cells that could be patched into your clothes might one day let you charge up your mobile phone or other gadgets while out in the sunshine, according to research published this month in the journal Angewandte Chemie. The work by scientists in China used X-ray characterization of key components to take the first solar strides.

Read More thumbnail image: Fair-weather power Solar textiles
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