Infrared Spectroscopy / Ezine
Evaluation of Shooting Distance by AFM and FTIR/ATR Analysis of GSR
Date: Dec 1, 2008
Author:
The techniques of atomic force microscopy and Fourier transform infrared attenuated total reflectance spectroscopy are applied to the analysis of gun-shot residue to test their ability to determine shooting distance and discrimination of the powder manufacturers.
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Compaction of pharmaceutical tablets with different polymer matrices studied by FTIR imaging and X-ray microtomography
Date: Nov 3, 2008
Author:
ATR-FTIR spectroscopic imaging has been used to analyse in situ the spatial distribution of different components in tablets with different compositions, including various water-soluble polymers that are added to improve dissolution and compaction properties.
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DIY instrumentation
Date: Nov 1, 2008
Author: David Bradley
Rather than designing and building new instrumentation from bespoke components, researchers in Canada have hacked the laser-based optical read-write technology of DVD and CD players to create a biomedical diagnostics system.
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Innovative uses of near-infrared spectroscopy in food processing
Date: Oct 6, 2008
Author:
The application of near-infrared spectroscopy to process control in the food industry is reviewed. Complex processes such as meat tenderness evaluation and dough mixing can be monitored and controlled in situ to produce consistent, high quality end products.
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Skag test
Date: Oct 1, 2008
Author: David Bradley
Impure forms of illicit drugs are almost as big a problem as the drugs themselves. Now, researchers in Spain have used diffuse reflectance near-infrared spectroscopy (DR-NIR) to quickly determine the purity of heroin.
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Fast, noninvasive and simultaneous NIRS characterisation of physicochemical stationary phases properties: From silica particles towards monoliths
Date: Sep 1, 2008
Author:
The advantages of this fast, noninvasive high-throughput NIRS methods are summarised, discussed in detail and different applications of the individual characterised materials are shown.
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Fishnet invisibility cloak
Date: Sep 1, 2008
Author: David Bradley
It is what fans of science fiction and technologists have been waiting for since HG Wells' Invisible Man first came into view - or not, as the case may be. Scientists at the University of California, Berkeley, have engineered three-dimensional metamaterials that can reverse the natural direction of visible and near-infrared light, which could one day lead to an invisibility device.
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FTIR protein secondary structure analysis of human ascending aortic tissues
Date: Aug 4, 2008
Author:
FTIR microscopy coupled to a curve-fitting procedure has been used to analyze secondary structure modifications in elastin and collagen in human normal and pathological aortic tissues.
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Ordure, ordure, ordure!
Date: Aug 1, 2008
Author: David Bradley
IR spectroscopy of soil fertilised with farm manure reveals that soil quality can be improved significantly compared to "traditional" modern inorganic farming methods and allow poor quality land to be farmed..
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Use of mid-IR spectroscopy in the diffuse-reflectance mode for the prediction of the composition of organic matter in soil and litter
Date: Jul 3, 2008
Author:
The ability of MIRS to predict the chemical and biological properties of organic matter in soils and litter was studied for 56 samples from agricultural and forest sites. The spectra included part of the near-infrared region (7000-400 cm-1).
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