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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

Oceanic methane: Greenhouse leakage

Date: Sep 1, 2014

Author: David Bradley

Natural methane leakage from the seafloor is far more widespread on the US Atlantic margin than geological scientists previously thought. Data from multibeam water-column backscatter experiments covering a 94000 square kilometre area reveal approximately 570 gas plumes at depths between 50 and 1700 metres. At these depths methane clathrates, in which this potent greenhouse gas is usually kept trapped under pressure, are unstable potentially allowing huge volumes to enter atmosphere.

Read More thumbnail image: Oceanic methane Greenhouse leakage
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