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Proteome dynamics: Deuterium oxide doping

Date: Sep 15, 2014

Author: Steve Down

Human subjects have been drinking deuterated water to investigate protein turnover in the body, in a protocol which has been proven to be safe and effective and could lead to a greater understanding of cardiovascular protein dynamics.

Read More thumbnail image: Proteome dynamics Deuterium oxide doping

Classifying birds' eggs: E-nose matches GC/MS performance

Date: Sep 15, 2014

Author: Steve Down

The major volatile compounds in birds' eggs have been used to distinguish between seven different species, an E-nose system performing just as well as GC/MS. The technique could be applied to quality control and counterfeit detection.

Read More thumbnail image: Classifying birds eggs E-nose matches GCMS performance

Journal Highlight: Exploring bacterial phenotypic diversity using factorial design and FTIR multivariate fingerprinting

Date: Sep 15, 2014

Author: spectroscopyNOW

Bacterial phenotypic diversity of cultures of Staphylococcus aureus grown under variable sets of environmental conditions was characterized by FTIR spectroscopy, using different spectral preprocessing methods in combination with scaling methods in principal component analysis.

Read More thumbnail image: Journal Highlight Exploring bacterial phenotypic diversity using factorial design and FTIR multivariate fingerprinting

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

Tera in our midst: New picture emerges

Date: Sep 15, 2014

Author: David Bradley

New research into terahertz radiation could lead to light detectors that can see below the surface of bodies, walls, and other objects, with applications in fields as diverse as mobile communications, medical imaging, chemical sensing, night vision, and security.

Read More thumbnail image: Tera in our midst New picture emerges

Wine discrimination: Chemometric distinction

Date: Sep 15, 2014

Author: David Bradley

The analysis of gas chromatography and quadrupole mass spectrometry data obtained after solid-phase extraction of wine samples can be carried out by using partial least squares discriminant analysis. The approach can successfully discriminate between wines based on geographical origin as well as wine type and vintage and has proven itself with wine from the Azores, the Canary Islands and Madeira.

Read More thumbnail image: Wine discrimination Chemometric distinction

Planetary nano: Orbital system

Date: Sep 15, 2014

Author: David Bradley

German researchers have produced nanoparticles surrounded by a group of smaller nanoparticles in what might whimsically be described as a system resembling a tiny planet with orbiting satellites. Nuclear magnetic resonance spectroscopy and other techniques reveal the details.

Read More thumbnail image: Planetary nano Orbital system

Journal Highlight: Fluorescence methods (VistaCam iX proof and DIAGNODent pen) for the detection of occlusal carious lesions in teeth recovered from archaeological context

Date: Sep 8, 2014

Author: spectroscopyNOW

The abilities of two commercial tools to detect initial enamel caries in archaeologically derived material are compared with visual inspection, X-ray, histology, and micro-CT for teeth from the modern Islamic (AD 1850–1950), Islamic (AD 600–1200) and late Roman (AD 200–400) periods.

Read More thumbnail image: Journal Highlight Fluorescence methods VistaCam iX proof and DIAGNODent pen for the detection of occlusal carious lesions in teeth recovered from archaeological context

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

Journal Highlight: Real-time monitoring of exhaled drugs by mass spectrometry

Date: Sep 8, 2014

Author: spectroscopyNOW

This review describes the monitoring of exhaled drugs in real time by mass spectrometry, covering the relevant physical properties of exhaled drugs, the feasibility of detecting and monitoring them and the mass spectrometric tools currently available for real-time analysis.

Read More thumbnail image: Journal Highlight Real-time monitoring of exhaled drugs by mass spectrometry
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