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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

Journal Highlight: In vitro discrimination of wound-associated bacteria by volatile compound profiling using selected ion flow tube-mass spectrometry

Date: Jul 10, 2017

Author: spectroscopyNOW

Selected ion flow tube-mass spectrometry in full mass scan mode was used to analyse headspace gases produced by wound-associated bacteria in the wounds and on dressing materials.

Read More thumbnail image: Journal Highlight In vitro discrimination of wound-associated bacteria by volatile compound profiling using selected ion flow tube-mass spectrometry

Journal Highlight: Territorial origin of olive oil: representing georeferenced maps of olive oils by NMR profiling

Date: Jul 3, 2017

Author: spectroscopyNOW

1H NMR spectra have been used to build a geographic information system map permitting the identification of territorial regions of Italian olive oils having strong similarities in chemical content.

Read More thumbnail image: Journal Highlight Territorial origin of olive oil representing georeferenced maps of olive oils by NMR profiling

Journal Highlight: Glycan fingerprinting via cold-ion infrared spectroscopy

Date: Jul 3, 2017

Author: spectroscopyNOW

Cold-ion IR spectroscopy of oligosaccharide ions reveals many well-resolved absorption features that are diagnostic for minute structural variations, making it a key technology combined with mass spectrometry to unravel complex glycomes.

Read More thumbnail image: Journal Highlight Glycan fingerprinting via cold-ion infrared spectroscopy

Journal Highlight: Next generation ice core technology reveals true minimum natural levels of lead (Pb) in the atmosphere: insights from the Black Death

Date: Jul 3, 2017

Author: spectroscopyNOW

ICP-MS and ultra-high resolution LA-ICP-MS measurements of atmospheric lead deposition in a glacier in the Swiss-Italian Alps contradict conventional wisdom, showing that natural background levels occurred only in a single four-year period, during the Black Death, in the 2000 years documented.

Read More thumbnail image: Journal Highlight Next generation ice core technology reveals true minimum natural levels of lead Pb in the atmosphere insights from the Black Death

Journal Highlight: Nanodiamonds and silicate minerals in ordinary chondrites as determined by micro-Raman spectroscopy

Date: Jul 3, 2017

Author: spectroscopyNOW

Raman spectra of silicate and carbonaceous minerals in three ordinary chondrites have been measured to improve understanding of the impact process including peak metamorphic pressures present in carbon-bearing ordinary chondrites.

Read More thumbnail image: Journal Highlight Nanodiamonds and silicate minerals in ordinary chondrites as determined by micro-Raman spectroscopy

Buffalo milk: Bioactive peptides

Date: Jul 1, 2017

Author: Steve Down

Peptides derived from the proteins in buffalo milk fat and colostrum by simulated gastrointestinal digestion have a range of bioactive properties, say Indian researchers, highlighting their potential as health product ingredients and neutraceuticals.

Read More thumbnail image: Buffalo milk Bioactive peptides

Black box drug testing: New psychoactive substances

Date: Jul 1, 2017

Author: Steve Down

A novel LC/MS method with high-resolution mass spectrometry has been applied to the detection of the drugs known as new psychoactive substances, with the ultimate aim of providing a black box solution for drug testing that requires minimal operator intervention.

Read More thumbnail image: Black box drug testing New psychoactive substances

DEREK peers at plethora of products in rat urine

Date: Jul 1, 2017

Author: Ryan De Vooght-Johnson

Fluvastatin is a commonly used statin compound, so it is important to carefully study its metabolites. Researchers based at the National Institutes of Pharmaceutical Education and Research in Hyderabad and S.A.S Nagar examined the metabolites of fluvastatin formed in vivo by rats, along with those formed in vitro by human or rat liver microsomes, using UHPLC-MS/MS. They subsequently ran in silico toxicity studies on these compounds.

Read More thumbnail image: DEREK peers at plethora of products in rat urine

Contrast deposition: MRI agents

Date: Jul 1, 2017

Author: David Bradley

New research published in the journal Radiology suggests that traces of the contrast agent gadolinium can be found in brain tissues many years after administration during magnetic resonance imaging (MRI). Intracranial deposition seems to occur even in patients with an intact blood-brain barrier.

Read More thumbnail image: Contrast deposition MRI agents
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