UV/Vis Spectroscopy / Ezine
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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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