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Cool microscopy: Nobel chemistry

Date: Oct 15, 2017

Author: David Bradley

The development of cryo-electron microscopy has led to this year's Nobel Prize for Chemistry been awarded to Jacques Dubochet of the University of Lausanne, Switzerland, Joachim Frank of Columbia University, New York, USA, and Richard Henderson of the Medical research Council Laboratory of Molecular Biology (MRC-LMB) in Cambridge, UK.

Read More thumbnail image: Cool microscopy Nobel chemistry

Journal Highlight: Quantitative total reflection X-ray fluorescence analysis of directly collected aerosol samples

Date: Oct 9, 2017

Author: spectroscopyNOW

A feasibility study investigating the use of total reflection X-ray fluorescence analysis for the quantification of elements in directly collected aerosol samples is described.

Read More thumbnail image: Journal Highlight Quantitative total reflection X-ray fluorescence analysis of directly collected aerosol samples

Breaking Coloumb's law: Scattered X-ray results

Date: Oct 1, 2017

Author: David Bradley

X-ray scattering studies have been used to show how the previously immutable Coloumb's law that says electrical charges attract might be broken. The discovery could pave way the way to a new type of battery, new water treatment technology, and alternative energy supply.

Read More thumbnail image: Breaking Coloumbs law Scattered X-ray results

Journal Highlight: Chiral gold nanoclusters: Atomic level origins of chirality

Date: Sep 11, 2017

Author: spectroscopyNOW

The use of single-crystal X-ray crystallography to study the chirality of atomically precise thiolate-protected gold nanoclusters, which have emerged as a new class of nanomaterial, has been reviewed.

Read More thumbnail image: Journal Highlight Chiral gold nanoclusters Atomic level origins of chirality

DNA unravelled: X-rays show archaic folding origin

Date: Aug 15, 2017

Author: David Bradley

New X-ray crystallographic work by scientists at the Howard Hughes Medical Institute reveals that organisms with cell nuclei, eukaryotes, which includes all multicellular life uses proteins to pack its DNA into the cell nucleus using similar folding techniques as that seen in microbes whose ancestry stretches back to the dawn of life on earth, the archaea.

Read More thumbnail image: DNA unravelled X-rays show archaic folding origin

Journal Highlight: Three-dimensional single-cell imaging with X-ray waveguides in the holographic regime

Date: Aug 8, 2017

Author: spectroscopyNOW

X-ray tomography of single biological cells in a low-dose regime, based on full-field holographic recordings, has been extended to eliminate the bottleneck of phase retrieval and cope with high noise.

Read More thumbnail image: Journal Highlight Three-dimensional single-cell imaging with X-ray waveguides in the holographic regime

Crystal reality check: Wonder stuff

Date: Aug 1, 2017

Author: David Bradley

It is well over a decade since materials scientists started to investigate so-called topological insulators. They are yet to live up to the hype and now researchers in the Netherlands think they know why.

Read More thumbnail image: Crystal reality check Wonder stuff

Tiniest cubic ice crystals: X-rayed

Date: Jul 15, 2017

Author: David Bradley

A new X-ray study of the tiny, almost perfect square ice crystals predicted to form in the chilly realm of high altitude clouds but extremely difficult to make at ground level could open up studies on how sunlight and air interact with clouds thereby improving our models of climate change.

Read More thumbnail image: Tiniest cubic ice crystals X-rayed

Journal Highlight: Experimental conformational energy maps of proteins and peptides

Date: Jul 10, 2017

Author: spectroscopyNOW

An extensive analysis of the peptide backbone dihedral angles of proteins in the Protein Data Bank has been carried out and Ramachandran plots for their distributions calculated.

Read More thumbnail image: Journal Highlight Experimental conformational energy maps of proteins and peptides

Two-phased water: X-ray insights

Date: Jul 1, 2017

Author: David Bradley

Liquid water exists as two distinct phases with very different structures and densities according to X-ray work by an international team.

Read More thumbnail image: Two-phased water X-ray insights
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