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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

Mossy synthesis: Sieboldine

Date: Jan 6, 2017

Author: David Bradley

A new, shorter total synthesis of a complex and intriguing compound, the Lycopodium alkaloid, (+)-sieboldine A, has been carried out by researchers in Japan. Infrared and nuclear magnetic resonance spectroscopy and high-resolution mass spectrometry, as well as optical rotation measurements validated the procedure.

Read More thumbnail image: Mossy synthesis Sieboldine

White wine: Spectroscopic phenolic

Date: Jan 6, 2017

Author: David Bradley

UV-Vis, laser induced fluorescence and Raman spectroscopic techniques can be used to investigate the phenolic acids present in white wines, according to research published in the journal Food Chemistry by researchers in France.

Read More thumbnail image: White wine Spectroscopic phenolic

Sweet substitution: NMR and insulin analogue

Date: Jan 6, 2017

Author: David Bradley

Replacing a particular hydrogen with an iodine atom to create a halogenated insulin analogue maintains the functionality of the glucose-control hormone but makes it act much faster. Nuclear magnetic resonance spectroscopy and X-ray crystallography have been used to investigate the structure.

Read More thumbnail image: Sweet substitution NMR and insulin analogue

Brain growth: MRI shows lifelong development

Date: Jan 6, 2017

Author: David Bradley

It turns out to be nothing more than deceived wisdom that our brains no longer grow in adulthood, according to a Stanford study. Magnetic resonance imaging (MRI) reveals in the work that the brain tissues involved in face recognition continues to grow and develop throughout our lives.

Read More thumbnail image: Brain growth MRI shows lifelong development

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

Ising on the 2D cake: Raman in transition

Date: Jan 6, 2017

Author: David Bradley

Scientists in South Korea have used Raman spectroscopy to obtain the first experimental proof of a physics theory proposed more than 70 years ago.

Read More thumbnail image: Ising on the 2D cake Raman in transition

Nasal cancer prognosis: 14-3-3 epsilon predictor for asparaginase treatment

Date: Jan 4, 2017

Author: Steve Down

The response of patients with extranodal natural killer/T-cell lymphoma, nasal type (ENKTL) to treatment with asparaginase can be predicted by levels of the protein 14-3-3 epsilon, say Chinese scientists.

Read More thumbnail image: Nasal cancer prognosis 14-3-3 epsilon predictor for asparaginase treatment

Mouldy mycotoxins: Imaging distributions in food

Date: Jan 3, 2017

Author: Steve Down

The distributions of mycotoxins in mould-infested food have been mapped by MALDI mass spectrometry imaging for the first time in a proof-of-principle study that could be extended to living plants.

Read More thumbnail image: Mouldy mycotoxins Imaging distributions in food

Journal Highlight: 14N Solid-state NMR spectroscopy of amino acids

Date: Jan 1, 2017

Author: spectroscopyNOW

14N Ultra-wideline solid-state NMR spectra were obtained for 16 naturally occurring amino acids and four related derivatives by using the WURST–CPMG pulse sequence and frequency-stepped techniques.

Read More thumbnail image: Journal Highlight 14N Solid-state NMR spectroscopy of amino acids
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