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Journal Highlight: Silk grafting with methacrylamide: A near-infrared spectroscopy study

Date: Jan 31, 2011

Author:

Near infrared (NIR) spectroscopy was used for the quantitative determination of methacrylamide (MAA) in silk yarns and in exhaust baths after grafting. A correlation between the grafting yield and NIR spectra of MAA grafted yarns was obtained.

Read More thumbnail image: Journal Highlight Silk grafting with methacrylamide A near-infrared spectroscopy study

Conserving conservation: Spectroscopic insights into fading

Date: Jan 5, 2011

Author: David Bradley

Improving storage and exposure conditions in conservation of artefacts is crucial to suppressing the fading and degradation of dyes and other components of paintings. Researchers have now used several analytical techniques, including attenuated total reflectance infrared spectroscopy, Raman spectroscopy, reflectance UV-Vis spectroscopy, X-ray fluorescence spectroscopy and optical microscopy, to investigate different conditions on common pigments.

Read More thumbnail image: Conserving conservation Spectroscopic insights into fading

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.

Read More thumbnail image: Journal Highlight Pharmaceutical applications of separation of absorption and scattering in near-Infrared spectroscopy NIRS

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.

Read More thumbnail image: The pros and cons of inhaled nanoparticles IR fluorescence reveals all

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.

Read More thumbnail image: Journal Highlight Morphology FTIR fingerprint and survivability of encapsulated lactic bacteria in simulated gastric juice and intestinal juice

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.

Read More thumbnail image: The use of near infrared reflectance spectrometry for characterization of brown algal tissue

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.

Read More thumbnail image: Nanoparticles target track and treat breast cancer

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.

Read More thumbnail image: ATR-FTIR spectroscopy and chemometric analysis applied to discrimination of landrace maize flours produced in southern Brazil

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.

Read More thumbnail image: Stable dyes - improved quantum yields for better sensors

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.

Read More thumbnail image: Near-infrared spectroscopy for the quantitative determination of mass transfer and water absorption kinetics by a polymer solution
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