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Coral See: UV sheds light on colourful array

Date: Jul 1, 2015

Author: David Bradley

Oceanic corals are well known for their beautiful shapes and forms, for their range of colours and for their wondrous role in submarine ecosystems. Now, ultraviolet light reveals a surprising display of colours and  fluorescence in the corals that reside on the deep water reefs of  the Red Sea. The discovery of this new beauty was made by scientists from the University of Southampton, UK, Tel  Aviv University and the Interuniversity Institute for Marine Sciences  (IUI), in Israel, and...

Read More thumbnail image: Coral See UV sheds light on colourful array

Journal Highlight: Effect of thiophene rings on UV/visible spectra and non-linear optical (NLO) properties of triphenylamine based dyes: a quantum chemical perspective

Date: Jun 8, 2015

Author: spectroscopyNOW

Density functional theory (DFT) and time-dependent DFT are used to show how the number of thiophene rings in π-conjugated systems influence the absorption spectra and non-linear optical properties of dyes.

Read More thumbnail image: Journal Highlight Effect of thiophene rings on UVvisible spectra and non-linear optical NLO properties of triphenylamine based dyes a quantum chemical perspective

Sunlight and stress: UV trigger molecule

Date: Jun 1, 2015

Author: David Bradley

Stresses, including ultraviolet light, can trigger a crucial molecule to halt DNA to RNA transcription, leading to tissue damage, according to a new study.

Read More thumbnail image: Sunlight and stress UV trigger molecule

Journal Highlight: Real-time fluorescence imaging of the DNA damage repair response during mitosis

Date: May 11, 2015

Author: spectroscopyNOW

The response to DNA damage during mitosis was visualized using real-time fluorescence imaging of focus formation by the DNA-damage repair response protein 53BP1 linked to green fluorescent protein in the MiaPaCa-2Tet-On pancreatic cancer cell line.

Read More thumbnail image: Journal Highlight Real-time fluorescence imaging of the DNA damage repair response during mitosis

How difficile can it be? Microbes under UV

Date: May 1, 2015

Author: David Bradley

The bacterium Clostridium difficile kills almost 30000 people annually in the US and causes sickness in hundreds of thousands more. A new study reveals that close to half of American hospitals are not taking simple, but critical, steps to prevent its spread despite strong evidence of efficacy of such actions.

Read More thumbnail image: How difficile can it be Microbes under UV

Journal Highlight: A stretchable nanowire UV–Vis–NIR photodetector with high performance

Date: Apr 6, 2015

Author: spectroscopyNOW

A stretchable UV–vis–NIR nanowire photodetector consisting of PbS quantum dot–poly(3-hexylthiopehene) hybrid nanowires has been fabricated.

Read More thumbnail image: Journal Highlight A stretchable nanowire UVVisNIR photodetector with high performance

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
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