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Gassy to the core: UV and X-rays shape exoplanets

Date: Feb 1, 2015

Author:

Exoplanets resembling the gas giant Neptune might become habitable if the star around which they orbit is of relatively low mass, ultraviolet and X-ray phenomena would shape the planet by removing most of the vast, inhabitable atmosphere leaving behind a rocky core on which life might emerge.

Read More thumbnail image: Gassy to the core UV and X-rays shape exoplanets

Journal Highlight: The flower of Hibiscus trionum is both visibly and measurably iridescent

Date: Jan 12, 2015

Author: spectroscopyNOW

Iridescence of the petals of Hibiscus trionum, which was studied by macro-imaging, SEM, TEM and UV-vis angle-resolved spectroscopy, originates from a diffraction grating generated by folds of the cuticle and may attract pollinators.

Read More thumbnail image: Journal Highlight The flower of Hibiscus trionum is both visibly and measurably iridescent

Three million years ago: Three million km/h

Date: Jan 8, 2015

Author: David Bradley

The Hubble Space Telescope's Cosmic Origins Spectrograph (COS) has probed ultraviolet light from a distant quasar to investigate the "bubble" of cosmic debris formed by a 3 million km/h outburst from our galaxy, the Milky Way, that occurred between 2.5 and 4.0 million years ago.

Read More thumbnail image: Three million years ago Three million kmh

Journal Highlight: Visualization of controlled fragrance release from cyclodextrin inclusion complexes by fluorescence imaging

Date: Dec 8, 2014

Author: spectroscopyNOW

A fluorescence imaging system has been devised as a simple but effective tool to visualize the moisture-activated release of fragrance from cyclodextrin inclusion complexes.

Read More thumbnail image: Journal Highlight Visualization of controlled fragrance release from cyclodextrin inclusion complexes by fluorescence imaging

Plastic fantastic: UV recycling

Date: Dec 1, 2014

Author: David Bradley

A new type of degradable polymer made from a fructose-derived monomer can be broken down when exposed to ultraviolet light and release material that can be recycled into new polymer, according to US researchers.

Read More thumbnail image: Plastic fantastic UV recycling

Journal Highlight: A multifrequency virtual spectrometer for complex bio-organic systems: Vibronic and environmental effects on the UV/vis spectrum of chlorophyll a

Date: Nov 10, 2014

Author: spectroscopyNOW

The UV/vis spectra of chlorophyll a have been simulated by easy-to-use and effective procedures to illustrate the affordable feasibility of computing the vibrational and environmental effects on the spectral line shapes of large systems.

Read More thumbnail image: Journal Highlight A multifrequency virtual spectrometer for complex bio-organic systems Vibronic and environmental effects on the UVvis spectrum of chlorophyll a

Aligning spacecraft: Virtual telescopes

Date: Nov 1, 2014

Author: David Bradley

Aligning two spacecraft to focus on a single astronomical target creates a single or "virtual" telescope and paves the way for extreme ultraviolet imaging of the Sun and X-ray imaging of solar flares, according to research by NASA scientists.

Read More thumbnail image: Aligning spacecraft Virtual telescopes

Journal Highlight: Manual corneal thickness measurements of healthy equine eyes using a portable spectral-domain optical coherence tomography device

Date: Oct 13, 2014

Author: spectroscopyNOW

Manual corneal thickness measurement using a portable SD-OCT device provides epithelial, stromal, Descemet's membrane and total corneal thickness measurements with clinically acceptable intra- and interoperator reliability in healthy equine eyes.

Read More thumbnail image: Journal Highlight Manual corneal thickness measurements of healthy equine eyes using a portable spectral-domain optical coherence tomography device

Solar power: An organic tin approach

Date: Oct 1, 2014

Author: David Bradley

German researchers have successfully integrated an organic tin moiety into a semiconducting polymer for the first time to make a new class of solar energy absorption material that can absorb a broad band across the electromagnetic spectrum from the sun.

Read More thumbnail image: Solar power An organic tin approach

Journal Highlight: Fluorescence methods (VistaCam iX proof and DIAGNODent pen) for the detection of occlusal carious lesions in teeth recovered from archaeological context

Date: Sep 8, 2014

Author: spectroscopyNOW

The abilities of two commercial tools to detect initial enamel caries in archaeologically derived material are compared with visual inspection, X-ray, histology, and micro-CT for teeth from the modern Islamic (AD 1850–1950), Islamic (AD 600–1200) and late Roman (AD 200–400) periods.

Read More thumbnail image: Journal Highlight Fluorescence methods VistaCam iX proof and DIAGNODent pen for the detection of occlusal carious lesions in teeth recovered from archaeological context
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