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Journal Highlight: Optical properties of modified epoxy resin with various oxime derivatives in the UV-VIS spectral region

Date: Mar 14, 2011

Author:

Optical absorbance measurements have been performed on an epoxy resin and the composites prepared by its modification with two different oxime derivatives (benzaldoxime and 2-furaldoxime) at 190-680 nm by unpolarized light and the data have been used to determine various optical properties.

Read More thumbnail image: Journal Highlight Optical properties of modified epoxy resin with various oxime derivatives in the UV-VIS spectral region

It's in the brew: coffee antioxidants formed by roasting

Date: Mar 1, 2011

Author: David Bradley

UV-Vis spectroscopy and fluorescence studies reveal that the antioxidants in coffee with the most potent assumed health benefits are formed by the roasting of beans rather than being present in the raw green beans. The results are reported in detail in the journal Food Research International.

Read More thumbnail image: Its in the brew coffee antioxidants formed by roasting

Journal Highlight: Two-photon fluorescence real-time imaging on the development of early mouse embryo by stages

Date: Feb 7, 2011

Author:

Early mouse embryo development from zygote to 8-cell stage compaction was observed in real-time by stages using two-photon laser scanning microscopy, optimizing several scanning parameters in different development stages.

Read More thumbnail image: Journal Highlight Two-photon fluorescence real-time imaging on the development of early mouse embryo by stages

Caffeine stacks up against cancer: UV-Vis reveals mechanism

Date: Feb 1, 2011

Author: David Bradley

Methylxanthine alkaloids, such as caffeine, have been implicated as a risk factor in several forms of cancer. Now, UV-vis spectroscopy and other techniques have been used to reveal a possible mechanism that demonstrates they may have the opposite activity - protecting us from aromatic mutagens and carcinogens by stacking up and blocking their detrimental activity.

Read More thumbnail image: Caffeine stacks up against cancer UV-Vis reveals mechanism

Journal Highlight: Optical spectroscopy of bilayer graphene

Date: Jan 10, 2011

Author:

Infrared spectroscopy reveals unusual tunable electronic structure and optical behaviour in electrically gated bilayer graphene in which a unique tunable bandgap can lead to many new physical phenomena.

Read More thumbnail image: Journal Highlight Optical spectroscopy of bilayer graphene

Well structured: pyrrole as building block for soft materials

Date: Jan 5, 2011

Author: David Bradley

Japanese scientist Hiromitsu Maeda of Risumeikan University and his colleagues have turned to the well-known molecular motif of the pyrrole to make a new class of structured materials. By combining planar pyrrole-containing negatively charged complexes with similarly planar, positively charged organic ions they can generate fibres and soft materials, such as supramolecular gels and liquid crystals based on these organic salts.

Read More thumbnail image: Well structured pyrrole as building block for soft materials

Journal Highlight: Photoluminescence of single-wall carbon nanotube films

Date: Dec 6, 2010

Author:

Photoluminescence studies of films produced by different methods from pristine single-wall carbon nanotubes (SWNTs) were studied by optical diagnostic techniques including Raman spectroscopy, UV-VIS-NIR absorption spectroscopy and photoluminescence.

Read More thumbnail image: Journal Highlight Photoluminescence of single-wall carbon nanotube films

One for the vine: testing tannins with absorption measurements

Date: Dec 1, 2010

Author: David Bradley

At Christmas time, there's no need to be afraid...of testing your tannins at least now that US researchers have developed a sensor capable of discriminating between the different tannins present in red wine. The sensor could be used to fingerprint a wide variety of red wines with a view to confirming provenance and authenticity.

Read More thumbnail image: One for the vine testing tannins with absorption measurements

Journal Highlight: Fluorescent whole-mount method for visualizing three-dimensional relationships in intact and regenerating adult newt spinal cords

Date: Nov 15, 2010

Author:

A method was developed for visualizing the cellular and molecular events during newt spinal cord regeneration in whole-mount preparations using fluorescent probes (streptavidins and antibodies) and confocal microscopy.

Read More thumbnail image: Journal Highlight Fluorescent whole-mount method for visualizing three-dimensional relationships in intact and regenerating adult newt spinal cords

UV stink: finding natural insect repellants to protect crops

Date: Nov 1, 2010

Author: David Bradley

Japanese researchers have used UV-Vis and nuclear magnetic resonance spectroscopy to help them develop a potential repellent for the invidious stink bug, an invasive pest species that has been spreading rapidly through the USA, invading homes and damaging crops.

Read More thumbnail image: UV stink finding natural insect repellants to protect crops
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