Infrared Spectroscopy / Ezine
Journal Highlight: Pharmaceutical applications of separation of absorption and scattering in near-Infrared spectroscopy (NIRS)
Date: Jan 3, 2011
Author:
This review paper surveys the multiple techniques reported to date on the separation of NIR absorption and scattering within pharmaceutical applications, focusing on the instrumentations, mathematical approaches used to separate absorption and scattering and related pharmaceutical applications.
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The pros and cons of inhaled nanoparticles: IR fluorescence reveals all
Date: Dec 1, 2010
Author: David Bradley
A new imaging system based on near-infrared fluorescent nanoparticles can provide a real-time understanding of how such tiny particles get into the airspaces within the lungs. The description of the ebb and flow of such experimental particles could be used to help medical researchers develop therapeutic agents for treating pulmonary disease.
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Journal Highlight: Morphology, FTIR fingerprint and survivability of encapsulated lactic bacteria in simulated gastric juice and intestinal juice
Date: Nov 29, 2010
Author:
A mixture of two lactic bacteria (Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus) was encapsulated in sodium alginate and chitosan matrices and their morphological parameters were comparatively measured.
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The use of near infrared reflectance spectrometry for characterization of brown algal tissue
Date: Nov 1, 2010
Author:
NIRS calibration models were developed to measure the ecologically important tissue traits of carbon, nitrogen, and phlorotannins (secondary metabolites) in brown algae, illustrated for dried Sargassum flavicans (F. K. Mertens) C. Agardh tissue.
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Nanoparticles: target, track and treat breast cancer
Date: Nov 1, 2010
Author: David Bradley
Nanoparticles coupled to a fluorescent dye can be used to target tumour-specific molecules in breast cancer providing a way to track the particles by NIR spectroscopy, to enhance magnetic resonance imaging and to deliver an anticancer payload only to diseased cells.
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ATR-FTIR spectroscopy and chemometric analysis applied to discrimination of landrace maize flours produced in southern Brazil
Date: Oct 4, 2010
Author:
ATR-FTIR spectroscopy and principal components analysis were used in a quick screening method to discriminate flours of 26 maize landraces from southern Brazil.
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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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