UV/Vis Spectroscopy / Ezine
Carbon dioxide trap and drop
Date: Feb 1, 2010
Author: David Bradley
The reduction of greenhouse gas carbon dioxide to a useful chemical industry feedstock material, carbon monoxide, can be catalysed by a ruthenium-substituted polyoxometalate according to a new study. The work holds the promise of our developing a carbon-neutral energy platform.
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An open-source deconvolution software package for 3-D quantitative fluorescence microscopy imaging
Date: Jan 11, 2010
Author:
Deconv, an open-source deconvolution software package, was developed for 3-D quantitative fluorescence microscopy imaging and was released under the GNU Public License.
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Snagging supernova spectra
Date: Jan 1, 2010
Author: David Bradley
Spectroscopy reveals that an extraordinarily bright, very long-lasting supernova named SN 2007bi, spotted in the night sky by a robotic telescope is the first example of the earliest type of star in the universe.
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An ab initio simulation of the UV/visible spectra of N-benzylideneaniline dyes
Date: Dec 7, 2009
Author:
The structural parameters and absorption spectra of more than 30 N-benzylideneaniline dyes have been determined with a theoretical scheme combining the time-dependent density functional theory and the polarizable continuum model.
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Golden arsenic assessment
Date: Dec 1, 2009
Author: David Bradley
A new light-scattering technique that uses gold nanoparticles can selectively detect arsenic ions, without interference from dissolved alkali and alkali earth metals, improving on water tests based on Raman and SPR. UV-Vis spectroscopy was used in conjunction with tunnelling electron microscopy to characterise the nanoparticles themselves.
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Quality of sour cream packaged in cups with different light barrier properties measured by fluorescence spectroscopy and sensory analysis
Date: Nov 9, 2009
Author:
The photooxidation of sour cream packaged in cups with different light barrier properties was investigated by sensory analysis and front face fluorescence spectroscopy.
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Methylmercury marker
Date: Nov 1, 2009
Author: David Bradley
Detecting methylmercury usually involves complex sample preparation and a sophisticated analytical procedure. Now, a European team has developed a novel approach to detecting this hazardous substance much more quickly and easily using a new type of fluorescent marker.
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Tracing of intracellular zinc(II) fluorescence flux to monitor cell apoptosis by using FluoZin-3AM
Date: Oct 12, 2009
Author:
The zinc(II) probe FluoZin-3AM was used to distinguish between different stages of apoptotic cell (induced by the anticancer agent etoposide) by tracing the intracellular zinc(II) fluorescence flux.
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Optical sniffer detects poison gas
Date: Oct 1, 2009
Author: David Bradley
US researchers have developed an optoelectronic nose that can sniff out toxic gases. The sensor is fast and inexpensive and could be used to detect high exposure risk to hazardous industrial chemicals.
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Fluorescence of unmodified oligonucleotides: A tool to probe G-quadruplex DNA structure
Date: Sep 14, 2009
Author:
Unlabelled oligonucleotides that form G-quadruplexes can be differentiated from similar sequences that do not contain consecutive guanines on the basis of their fluorescence spectra.
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