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Journal Highlight: Donor-substituted distyrylpyrazines: influence of steric congestion on UV–Vis absorption and fluorescence

Date: Mar 11, 2013

Author: spectroscopyNOW

The effects of large substituents on the amino groups in novel synthetic linear 2,5-distyrylpyrazines on steric congestion have been studied by UV–Vis absorption and fluorescence spectroscopy.

Read More thumbnail image: Journal Highlight Donor-substituted distyrylpyrazines influence of steric congestion on UVVis absorption and fluorescence

Isotopic analysis: Solar system revelations

Date: Mar 1, 2013

Author: David Bradley

Researchers have used UV beamline studies and other techniques to analyse the origins of different isotope ratios among the chemical elements that make up the planets, moons, comets and asteroids, as well as the interplanetary ice and dust in our solar system. Their studies could provide new insights as to how the solar system evolved and what might be its ultimate fate.

Read More thumbnail image: Isotopic analysis Solar system revelations

Journal Highlight: Thousand-fold enhancement of single-molecule fluorescence near a single gold nanorod

Date: Feb 11, 2013

Author: spectroscopyNOW

Large enhancements of single-molecule fluorescence up to 1100 times have been achieved using synthesised gold nanorods by selecting a dye with its absorption and emission very close to the surface plasmon resonance of the nanorods.

Read More thumbnail image: Journal Highlight Thousand-fold enhancement of single-molecule fluorescence near a single gold nanorod

Tanned: Ion channel clues to UV protection

Date: Feb 1, 2013

Author: David Bradley

Skin cells known as melanocytes can sense ultraviolet light and increase production of melanin - tanning - in the skin to protect themselves and the tissues below. New research reveals that a well-studied and chemically sensitive ion channel found in cells elsewhere in the body plays a central role in "detecting" incident ultraviolet.

Read More thumbnail image: Tanned Ion channel clues to UV protection

Journal Highlight: First in situ optical emission spectroscopy measurements during cesium low-energy depth profiling

Date: Jan 14, 2013

Author: spectroscopyNOW

In situ optical emission spectroscopy measurements have been carried out on a time of flight SIMS instrument by measuring the light emission from the sputtered area.

Read More thumbnail image: Journal Highlight First in situ optical emission spectroscopy measurements during cesium low-energy depth profiling

Strong test for FUR: Spectral stimulant

Date: Jan 7, 2013

Author: David Bradley

A new spectroscopic method has been developed for the determination of the drug furosemide used to treat congestive heart failure and other conditions.

Read More thumbnail image: Strong test for FUR Spectral stimulant

Journal Highlight: Two-photon fluorescent imaging of myelination in the spinal cord

Date: Dec 10, 2012

Author: spectroscopyNOW

The myelin-targeted fluorescent imaging agent Case Imaging Compound has been synthesized via an improved route and evaluated as a probe for two-photon fluorescent imaging of myelin in the spinal cord in both demyelinated and dysmyelinated models.

Read More thumbnail image: Journal Highlight Two-photon fluorescent imaging of myelination in the spinal cord

A sense of Mars: Atmospheric probe

Date: Dec 1, 2012

Author:

A remote sensing instrument that will peer into the ultraviolet to offer clues to how Mars might have lost its atmosphere has arrived at Lockheed Martin for integration into NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft.

Read More thumbnail image: A sense of Mars Atmospheric probe

Journal Highlight: Anthradithiophene-thiophene copolymers with broad UV-vis absorption for organic solar cells and field-effect transistors

Date: Nov 12, 2012

Author: spectroscopyNOW

The optical, electrochemical, structural, field-effect transistor, and solar cell properties of novel anthradithiophene-thiophene semiconducting copolymers have been investigated.

Read More thumbnail image: Journal Highlight Anthradithiophene-thiophene copolymers with broad UV-vis absorption for organic solar cells and field-effect transistors

Metal chameleon: Red, gold and green, by George!

Date: Nov 1, 2012

Author: David Bradley

Researchers in the UK have demonstrated how embossing or indenting tiny patterned features on to the surface of a piece of gold or other metals can change the way they reflect light and so allow them to make gold appear red and green instead of its familiar, lustrous yellow colour.

Read More thumbnail image: Metal chameleon Red gold and green by George
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