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rssSafety of implantable medical devices: Antioxidant breakdown products classified
Date: Feb 15, 2013
Author: Steve Down
Components related to antioxidants that leach out of implantable medical devices, like artificial joint inserts, have been identified and measured by GC/MS to check their safety credentials.
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Alcoholic proteomics: Ethanol effects on proteins in rat liver and serum
Date: Feb 15, 2013
Author: Steve Down
A dual approach to proteomics changes in the rat following a chronic alcohol diet has examined both serum and rat liver, revealing that only one protein was up-regulated in both matrices.
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Pablo Picasso: Decorator
Date: Feb 15, 2013
Author: David Bradley
What type of paint did one of the most renowned and infamous artists of the twentieth, century, Pablo Picasso, use in his work - matte, gloss or emulsion? The Art Institute of Chicago and scientists at Argonne National Laboratory think they know having used a hard X-ray nanoprobe to help them unravel what is a decades-long debate among art scholars.
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Wonderful webs: Elastic data analysed
Date: Feb 15, 2013
Author: David Bradley
The full range of elastic properties of an intact spider's web have been catalogued by researchers in the USA using the relatively uncommon technique of Brillouin spectroscopy. The research offers an intriguing picture not only of one of nature's most fascinating structures but might also point the way towards novel "bio-inspired" materials.
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Pores for thought: Just shine a light
Date: Feb 15, 2013
Author: David Bradley
Nuclear magnetic resonance spectroscopy and mass spectrometry, among other techniques have been used in work on polymer pores. While, irradiation with light is a wel-established approach to the initiation of polymerization as well as cross-linking (or curing of polymers) during plastics production, researchers in the USA have now demonstrated that light can be used to retroactively increase the size of the pores within a polymer network.
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Shrinking the proton: Laser scan
Date: Feb 15, 2013
Author: David Bradley
An international research team has confirmed the surprisingly small radius of the proton using laser spectroscopy on muonic hydrogen. The new results fuel the debate as to whether the discrepancies observed can be explained by standard physics, for example an incomplete understanding of the systematic errors that are inherent to all measurements, or whether they are due to new physics, or a higher complexity than previously assumed for the structure of the proton.
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Journal Highlight: Thousand-fold enhancement of single-molecule fluorescence near a single gold nanorod
Date: Feb 11, 2013
Author: spectroscopyNOW
Large enhancements of single-molecule fluorescence up to 1100 times have been achieved using synthesised gold nanorods by selecting a dye with its absorption and emission very close to the surface plasmon resonance of the nanorods.
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Journal Highlight: Comparison of plain vertebral X-ray and dual-energy X-ray absorptiometry for the identification of older women for fracture prevention in primary care
Date: Feb 11, 2013
Author: spectroscopyNOW
The effects of the amended dual-energy X-ray absorptiometry diagnostic cut-off in the Australian Pharmaceutical Benefits Scheme for primary fracture prevention therapy with alendronate on case finding and cost have been assessed in older women.
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Journal Highlight: Early synthetic dyes – a challenge for tandem mass spectrometry
Date: Feb 11, 2013
Author: spectroscopyNOW
Early yellow synthetic dyes from silk fibres taken from the 1930 spring colour palette of the Lyon Dyers’ Guild (La Chambre Syndicale des Teinturiers) have been identified, primarily by electrospray MS/MS.
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Journal Highlight: How to tickle spins with a Fourier Transform NMR spectrometer
Date: Feb 4, 2013
Author: spectroscopyNOW
Spin tickling can readily be achieved in homonuclear systems with Fourier transform NMR spectrometers by applying short pulses in the intervals between the sampling points.
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