Raman Spectroscopy / Ezine
Think pink: Nitrite-free cure
Date: Nov 1, 2012
Author: David Bradley
Non-pathogenic microbes found in samples of Chinese dried pork could be used to form nitrosylmyoglobin in preserved meats without the addition of the nitrite preservatives commonly used in bacon products and other meats that have come under fire because of concerns about carcinogenicity. Raman spectroscopy and other techniques were used to demonstrate the formation of the nitrosylmyoglobin and provides critical data on potential safety and viability.
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Corrosion coating: Chromate replacement
Date: Nov 1, 2012
Author: David Bradley
Fourier transform infrared and Raman microspectroscopy, as well as other techniques have been used to test a putative, non-carcinogenic metal coating material based on molybdate to replace chromate for corrosion protection of aluminium in the automobile, aerospace and engineering industries.
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Journal Highlight: Mechanism of cellular uptake of graphene oxide studied by surface-enhanced Raman Spectroscopy
Date: Oct 1, 2012
Author: spectroscopyNOW
Surface-enhanced Raman scattering spectroscopy is employed to investigate the cellular internalization of graphene oxide loaded with Au nanoparticles by Ca Ski cells.
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Dynamic approach: Improving Raman
Date: Oct 1, 2012
Author: David Bradley
A team has demonstrated two significant benefits of a new approach called dynamic surface enhanced Raman spectroscopy (DSERS), which shows how normal Raman and instrumentation interference can be reduced in SERS.
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Journal Highlight: Study of the porous structure of white chocolate by confocal Raman microscopy
Date: Sep 3, 2012
Author: spectroscopyNOW
The appearance of protrusions and pores, and the distribution of fat, sucrose and milk powder in white chocolate pralines were investigated using confocal Raman microscopy.
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Sensitive flower: Explosive glow
Date: Sep 1, 2012
Author: David Bradley
Researchers in India have developed a shapely approach to nanoparticle enhancement that allows them to detect TNT at sub-zeptomole concentrations of TNT.
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Journal Highlight: Isolated nanoparticle Raman spectroscopy
Date: Aug 6, 2012
Author: spectroscopyNOW
Coupling of confocal Raman microscopy and atomic force microscopy provides an experimental tool to perform isolated nanoparticle Raman spectroscopy on a set of nanoparticles dispersed on microparticles.
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Cold comfort: Graphite under pressure
Date: Aug 1, 2012
Author: David Bradley
High-pressure experiments have finally yielded the structure of cold-compressed graphite for the first time, according to US researchers using Raman spectroscopy, X-ray crystallography and optical techniques.
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Journal Highlight: On-site Raman and XRF analysis of Japanese/Chinese bronze/brass patina – the search for specific Raman signatures
Date: Jul 2, 2012
Author: spectroscopyNOW
A selection of 30 Japanese and/or Chinese bronzes/brasses are studied on-site in the storage and exhibition rooms of the Cernuschi Museum, in Paris, using portable Raman and X-ray fluorescence spectrometers.
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Bacterial direction: Oxygenated perspective
Date: Jul 1, 2012
Author: David Bradley
Time-resolved ultraviolet resonance Raman spectroscopy has been used to reveal the way in which bacteria change direction in response to an oxygen concentration.
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