Infrared Spectroscopy / Ezine
Venusian vortex: Infrared images of planetary sibling
Date: Apr 1, 2013
Author: David Bradley
The South Polar Vortex of the planet Venus, second planet from the Sun, shows a much more chaotic and unpredictable weather system than had previously been recognised by astronomers. A new analysis of IR images shows that the axis of rotation of this vortex is nomadic about the pole depending on the particular altitude level in the clouds at which it is observed, revealing a much more unpredictable storm and morphology than thought.
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Journal Highlight: Detection of low-quality extra virgin olive oils by fatty acid alkyl esters evaluation: a preliminary and fast mid-IR spectroscopy discrimination by a chemometric approach
Date: Mar 18, 2013
Author: spectroscopyNOW
FT mid-IR spectroscopy with partial least squares analysis was used to predict the contents of fatty acid methyl and ethyl esters in extra virgin olive oils, allowing low-quality products to be identified.
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Journal Highlight: Infrared imaging as a cancer diagnostic tool: Introducing a new concept of spectral barcodes for identifying molecular changes in colon tumors
Date: Mar 4, 2013
Author: spectroscopyNOW
A biophotonic approach based on IR spectral micro-imaging combined with multivariate statistical analysis has been implemented on colon tissues to develop a new concept of spectral bar coding.
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Water, water everywhere: Even on the Moon
Date: Mar 1, 2013
Author: David Bradley
An analysis of tiny mineral deposits from lunar anorthosites brought back to Earth by Apollo astronauts adds new evidence to suggestions that water was not lost to space during the formation of the Moon. The analysis was carried out using Fourier-transform infrared (FTIR) spectroscopy.
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Journal Highlight: Could infrared spectroscopy identify melamine-related stone using melamine-contained mixture as a reference?
Date: Feb 4, 2013
Author: spectroscopyNOW
The infrared spectra of dry melamine-containing mixtures are different from those of melamine-containing stones formed in urine, so cannot be used for reference purposes.
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An eye for the dye: Novel IR sensors
Date: Feb 1, 2013
Author: David Bradley
Image sensors developed by researchers at the Technische Universität München (TUM) are more sensitive to light than the conventional silicon devices. The sensors are simple and inexpensive to produce and could easily be modified by switching dye molecules to use them for infrared applications.
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Journal Highlight: Fabrication of wideband near-infrared phosphor by stacking Sm3+-doped glass on Pr3+-doped glass phosphors
Date: Jan 7, 2013
Author: spectroscopyNOW
Near-IR glass phosphors doped with praseodymium and samarium were fabricated to give wideband luminescence that is suitable for the absorption spectrometry of agricultural products.
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Antioxidant nanotubes: Amino acids aid radical assimilation
Date: Jan 7, 2013
Author: David Bradley
Multi-walled carbon nanotubes functionalized with various amino acids can act as synthetic antioxidants. IR spectroscopy and other techniques have been used to study their effects and reveal these entities to be more potent than other synthetic agents in scavenging free radicals.
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Strong test for FUR: Spectral stimulant
Date: Jan 7, 2013
Author: David Bradley
A new spectroscopic method has been developed for the determination of the drug furosemide used to treat congestive heart failure and other conditions.
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Journal Highlight: FTIR spectra of algal species can be used as physiological fingerprints to assess their actual growth potential
Date: Dec 3, 2012
Author: spectroscopyNOW
FTIR spectra were measured from cells of two algal species whose growth rates were manipulated by the availability of nutrients or light and a species-specific model was developed to predict the growth rate.
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