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Venus running hot and cold: Ultraviolet layer

Date: Apr 1, 2015

Author: David Bradley

Ultraviolet observations by an international team reveal the existence of a warm layer in the atmosphere of the planet Venus the origins of which are yet to be explained. The discovery was uncovered when the team built a temperature map of the upper atmosphere on the planet's night side using data collected by the Venus Express probe.

Read More thumbnail image: Venus running hot and cold Ultraviolet layer

Journal Highlight: Sequence-dependent dsDNA-templated formation of fluorescent copper nanoparticles

Date: Mar 9, 2015

Author: spectroscopyNOW

A facile method for sequence-dependent formation of fluorescent copper nanoparticles has been developed using dsDNA, AT sequences being better than random sequences.

Read More thumbnail image: Journal Highlight Sequence-dependent dsDNA-templated formation of fluorescent copper nanoparticles

Reflecting on Mars: Moroccan black rock connection

Date: Mar 1, 2015

Author: David Bradley

A new reflectance spectroscopic analysis of the so-called “Black Beauty,” meteorite found in the Moroccan desert in 2011, has now offered scientists a clearer picture of the crust that lies beneath the red dust of the planet Mars.

Read More thumbnail image: Reflecting on Mars Moroccan black rock connection

Journal Highlight: Multicolored-fluorescence switching of ICT-type organic solids with clear color difference: Mechanically controlled excited state

Date: Feb 9, 2015

Author: spectroscopyNOW

A newly developed donor–acceptor-type fluorophore containing a twisted diphenylacrylonitrile and triphenylamine fluorophore reveals multicolored fluorescence switching from green to red upon mechanical grinding or hydrostatic pressure.

Read More thumbnail image: Journal Highlight Multicolored-fluorescence switching of ICT-type organic solids with clear color difference Mechanically controlled excited state

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
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