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Record-breaking crystals: Smallest ever X-rayed

Date: Mar 15, 2017

Author: David Bradley

The crystalline protein envelope of an insect virus has been examined by high-intensity X-ray pulses. The study by Henry Chapman of the Center for Free-Electron Laser Science id described in the Proceedings of the National Academy of Sciences and represents the smallest protein crystals examined so far by X-ray crystallography.

Read More thumbnail image: Record-breaking crystals Smallest ever X-rayed

Journal Highlight: Recent developments in polymer applications of synchrotron small-angle X-ray scattering

Date: Mar 13, 2017

Author: spectroscopyNOW

Recent developments in polymer applications of SAXS and its related techniques such as USAXS, ASAXS, GISAXS and X-ray photon correlation spectroscopy have been reviewed along with new trends in nanoparticle analyses and industrial applications.

Read More thumbnail image: Journal Highlight Recent developments in polymer applications of synchrotron small-angle X-ray scattering

Cellular fusion: Protein X-ray insights

Date: Mar 1, 2017

Author: David Bradley

X-ray crystallography reveals that two closely related proteins, the HAP2 protein from the single-celled alga Chlamydomonas reinhardtii and the fusion protein from dengue virus are essential for fusion with a cell membrane and thus both sexual reproduction and viral invasion of a host cell. The proteins probably emerged very early in the history of life on Earth.

Read More thumbnail image: Cellular fusion Protein X-ray insights

Size is everything: X-ray protein volume

Date: Feb 15, 2017

Author: David Bradley

Researchers in the US appear to have solved a paradox regarding the changing volume of proteins that dates back half a century. The team can now predict accurately through computational work how volume will change for a given protein between its folded and unfolded state. The study might shed light on the inner workings of life under pressure in the ocean depths and could have implications for understanding alien biochemistry should we ever identify life on other planets.

Read More thumbnail image: Size is everything X-ray protein volume

Journal Highlight: X-ray tomography of tsunami deposits: Towards a new depositional model of tsunami deposits

Date: Feb 6, 2017

Author: spectroscopyNOW

X-ray computed microtomography has been used to obtain high resolution imagery of a historical tsunami deposit in Andalusia, Spain, revealing grain-size distribution, structures, component analysis and sedimentary fabric.

Read More thumbnail image: Journal Highlight X-ray tomography of tsunami deposits Towards a new depositional model of tsunami deposits

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
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