UV/Vis Spectroscopy / Ezine
Journal Highlight: DESIRS: a state-of-the-art VUV beamline featuring high resolution and variable polarization for spectroscopy and dichroism at SOLEIL
Date: Jul 9, 2012
Author: spectroscopyNOW
A new undulator-based VUV beamline on the 2.75 GeV storage ring SOLEIL has been developed for gas-phase studies of molecular and electronic structures, reactivity and polarization-dependent photodynamics.
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Fold it: Origami kit simplifies testing
Date: Jul 1, 2012
Author: David Bradley
An origami-style test kit needs only a voltmeter for diagnostics rather than sophisticated instrumentation and could facilitate much simpler point-of-care and environmental analytics.
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Journal Highlight: Brilliant violet fluorophores: A new class of ultrabright fluorescent compounds for immunofluorescence experiments
Date: Jun 11, 2012
Author:
The first uses of a new class of “Brilliant Violet” fluorescent probes based on conductive organic polymers are reported in a diverse range of cytometric and imaging applications.
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Anticancer tomatoes: UV reveals details of lycopene extract
Date: Jun 1, 2012
Author: David Bradley
UV-Vis spectroscopy and several other techniques have been used to characterise a lycopene extract from tomatoes. The extract has also been evaluated for its anticancer properties in laboratory mice.
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Journal Highlight: PpIX fluorescence combined with auto-fluorescence for detection of non-melanoma skin cancer: An intra-patient direct comparison study
Date: May 7, 2012
Author:
This study aimed to compare the accuracy of PpIX fluorescence and auto-fluorescence normalized PpIX fluorescence detection systems for the localization non-melanoma skin cancers.
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Making unstickable adhesives: Mussel power
Date: May 1, 2012
Author: David Bradley
UV and NMR spectroscopy have been used to characterise a novel adhesive that functions in marine environments by mimicking the notoriously strong, natural glue used by mussels to cling to rocks and ships' hulls.
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Journal Highlight: Synthesis of novel blue-light-emitting polypyridine
Date: Apr 30, 2012
Author:
A new regioregular head-to-tail-type polypyridine with methoxyethoxyethoxy side chains that was synthesized by Kumada-Tamao coupling polymerization of a Grignard monomer emitted strong blue light when dissolved in chloroform and irradiated with UV light.
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In recognition of chirality: Ultraviolet probe
Date: Apr 1, 2012
Author: David Bradley
Identifying the chirality of a compound in the gas phase using light is difficult because of the low particle densities present. However, collision-free conditions could lead to highly sensitive analytical applications as well as allowing researchers to unravel fundamental aspects of the way light interacts with matter
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Journal Highlight: Laser tissue welding analyzed using fluorescence, Stokes shift spectroscopy, and Huang-Rhys parameter
Date: Mar 12, 2012
Author:
Near infrared continuous-wave laser radiation was used to weld porcine aorta and skin samples and the fluorescence spectra were measured for the key native molecules collagen, elastin and tryptophan in welded and non-welded tissues to differentiate the Huang-Rhys parameter values of the chromophores.
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Journal Highlight: Dating bloodstains with fluorescence lifetime measurements
Date: Feb 13, 2012
Author:
A highly reproducible correlation has been established between the fluorescence lifetime and the age of a bloodstain, using dog blood as a model, which was related to the alteration of tryptophan, the major endogenous fluorophore in blood proteins.
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