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rssWhat's the beef? Bovine antibodies X-rayed
Date: Jun 15, 2013
Author: David Bradley
US researchers have used X-ray diffraction to study several novel bovine antibodies that might one day lead to new types of agent against infectious pathogens.
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Quasi on the inside: Rare earth crystals
Date: Jun 15, 2013
Author: David Bradley
Scientists at the Ames Laboratory in the USA have used an algorithm to fish for new rare-earth quasicrystals and have pulled out a new family of binary magnetic icosahedral quasicrystals containing several different rare earth elements and cadmium. The findings demonstrate that such materials have spin glass behaviour rather than magnetic behaviour.
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Invisible touch: What's the matter?
Date: Jun 15, 2013
Author: David Bradley
An explanation as to why we cannot detect 85 percent of the predicted mass of the universe has emerged from fundamental particle research carried out in the 1930s. US physicists have now proposed that dark matter, may be composed of Majorana fermions, which are anapoles with a doughnut-shaped electromagnetic field invisible to any known detector technology.
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Concentrate hard: Improving FAAS
Date: Jun 15, 2013
Author: David Bradley
A new preconcentration procedure for flame atomic absorption spectrometric (FAAS) determinations of heavy metals in food and water is both quick and simple to carry out.
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Journal Highlight: Time-resolved X-ray PIV technique for diagnosing opaque biofluid flow with insufficient X-ray fluxes
Date: Jun 10, 2013
Author: spectroscopyNOW
X-ray particle image velocimetry in which an image intensifier was combined with a high-speed camera was used to reduce exposure time to below 200 µs, and applied to measure high-speed blood flows in a tube
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Journal Highlight: Comparison of direct mass spectrometry methods for the on-line analysis of volatile compounds in foods
Date: Jun 10, 2013
Author: spectroscopyNOW
This study highlighted the equivalent performances of APCI-MS and PTR-MS for in vitro and in vivo flavour release investigations and provided useful data on the problematic use of sample bags for headspace analyses.
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Journal Highlight: Spectroscopic studies on nicotine and nornicotine in the UV region
Date: Jun 10, 2013
Author: spectroscopyNOW
The UV absorption and electronic circular dichroism (ECD) spectra of (R)- and (S)-nicotine and (S)-nornicotine in aqueous solution were measured to a significantly lower wavelength range than previously reported, allowing the identification of four previously unobserved electronic transitions.
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Journal Highlight: Assessment of higher order structure comparability in therapeutic proteins using nuclear magnetic resonance spectroscopy
Date: Jun 3, 2013
Author: spectroscopyNOW
NMR spectroscopy using a fingerprinting approach has been used to rapidly assess higher order structure comparability in three nonglycosylated proteins spanning a molecular weight range of 6.5–67 kDa.
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Journal Highlight: Ultra-trace silver determination in biological and water samples by EAAS after electrodeposition on a graphite probe
Date: Jun 3, 2013
Author: spectroscopyNOW
A rapid and simple procedure was developed for the selective and sensitive determination of ultra-trace silver in biological and environmental samples using the electrodeposition on a graphite probe modified with palladium followed by electrothermal atomic absorption spectrometry.
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Journal Highlight: In vivo probing of the temperature responses of intracellular biomolecules in yeast cells by label-free Raman microspectroscopy
Date: Jun 3, 2013
Author: spectroscopyNOW
The in vivo probing, achieved with label-free Raman microspectroscopy, of the temperature responses of major intracellular components such as lipids and proteins in living fission yeast cells is presented.
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