Infrared Spectroscopy / Ezine
Stable dyes - improved quantum yields for better sensors
Date: Oct 1, 2010
Author: David Bradley
New dyes that have sharp absorptions and fluorescence emission bands in the red or near infrared as well high molar absorption coefficients and high fluorescence quantum yields could be used widely optical engineering, analytical chemistry, biological imaging and sensors, as well as in materials science.
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Near-infrared spectroscopy for the quantitative determination of mass transfer and water absorption kinetics by a polymer solution
Date: Sep 6, 2010
Author:
A new method was developed to quantify the water absorption kinetics and the mass transfer in a polymer solution while it is exposed to a humid atmosphere, using near-IR spectroscopy and partial least-squares models.
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Infrared water messengers
Date: Sep 1, 2010
Author: David Bradley
Water molecules continuously form short-lived clusters that can be rapidly protonated in the liquid state. Now, computer simulations revealed how protonated water clusters interact with nearby messenger molecules, which are required to measure their geometrical structures and the chemical properties by IR spectroscopy.
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A high-throughput microcultivation protocol for FTIR spectroscopic characterization and identification of fungi
Date: Aug 2, 2010
Author:
A protocol was presented for the high-throughput microcultivation and spectral characterization of fungi by Fourier transform infrared spectroscopy and applied to the study of 11 species in a total five different fungal genera.
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Space balls
Date: Aug 1, 2010
Author: David Bradley
Infrared spectroscopic data from the planetary nebula Tc 1 in the southern constellation Ara has now revealed convincing evidence that the fullerenes, C60 and C70, are present in large quantities in cosmic dust.
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Determination of water penetration and drug concentration profiles in HPMC-based matrix tablets by near infrared chemical imaging
Date: Jul 5, 2010
Author:
Near infrared chemical imaging and chemometric data analysis were used to study hydration behaviors of prolonged release tablets, which contain a high solubility drug at high load and a hydrophilic polymer hydroxypropylmethylcellulose (HPMC).
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Life's molecules in outer space
Date: Jul 1, 2010
Author: David Bradley
An astronomical infrared study reveals one of the most complex organic molecules yet found in the interstellar medium - anthracene - offering possible new clues to the way the building blocks of life might have emerged.
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An FTIR study of the induction and release of kiwifruit buds from dormancy
Date: Jun 7, 2010
Author:
FTIR spectrometry was used to provide an alternative mechanism for tracking metabolic changes in the meristems of kiwifruit buds during winter dormancy.
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Nano rice
Date: Jun 1, 2010
Author: David Bradley
Heating rice flour to 600 Celsius under a nitrogen atmosphere is not the usual way to cook it, but researchers in India have done just that. The product, rather than a bowl of light and fluffy grains is a plethora of nanoscopic carbon cubes and bricks, the team says
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Quantitative analysis of spatial proteoglycan content in articular cartilage with FTIRIS: Critical evaluation of analysis methods and specificity of the parameters
Date: May 3, 2010
Author:
Current Fourier transform infrared imaging spectroscopy methods for the determination of depthwise proteoglycan content in articular cartilage were evaluated.
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