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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.

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

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.

Read More thumbnail image: A high-throughput microcultivation protocol for FTIR spectroscopic characterization and identification of fungi

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).

Read More thumbnail image: Determination of water penetration and drug concentration profiles in HPMC-based matrix tablets by near infrared chemical imaging

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.

Read More thumbnail image: Lifes molecules in outer space

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.

Read More thumbnail image: An FTIR study of the induction and release of kiwifruit buds from dormancy
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