UV/Vis Spectroscopy / Ezine
Quantum dots boost anticancer drug
Date: May 1, 2010
Author: David Bradley
Quantum dots (QDs) have received significant attention in biological and biomedical fields. Now, UV-Vis spectroscopy and other techniques have been used to investigate their utility in enhancing the activity of the anticancer agent daunorubicin (DNR) in treating leukaemia cells.
Read MoreForensic discrimination of dyed hair color: I. UV-Visible microspectrophotometry
Date: Apr 12, 2010
Author:
Hair samples treated with 55 different red hair dyes were analyzed using UV-visible microspectrophotometry between 200 and 700 nm. The contribution of the hair substrate is predominantly observed at 300-400 nm while the dye peak is evident at 425-550 nm.
Read MoreLiquid light molecules
Date: Apr 1, 2010
Author: David Bradley
With suitable chemical modification, unprecedented room temperature liquid porphyrins could be used as optical limiters in optoelectronics and spectroscopic instrumentation, according to researchers in Poland.
Read MoreIncrease in CD230 (cellular prion protein) fluorescence on blood lymphocytes in BSE-infected nonhuman primates
Date: Mar 8, 2010
Author:
Simian cellular prion protein epitopes were mapped by flow cytometry using monoclonal antibodies. Blood lymphocytes from asymptomatically infected as well as diseased macaques were characterized by increased CD230 fluorescence.
Read MoreSunscreen spies
Date: Mar 1, 2010
Author: David Bradley
Sunscreen and boron can work together to make a compound that changes colour when touched under ultraviolet light. The compound changes from blue-green to yellow with the gentlest of rubs and then reverts quickly to blue-green when gently warmed, although the process is reversible at room temperature.
Read MoreElectrical and optical properties of polyaniline with a weblike morphology
Date: Feb 8, 2010
Author:
A method was described for the preparation of nanostructured polyaniline via the oxidation polymerization of aniline hydrochloride in the presence of an anionic surfactant.
Read MoreCarbon 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.
Read MoreAn 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.
Read MoreSnagging 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.
Read MoreAn 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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