.... http://www.spectroscopyNOW.com/coi/cda/landing.cda?type=Feature&chId=7 http://www.spectroscopyNOW.com/coi/cma/download.cma?imageType=RssLogo&contentType=Feature&siteId=1&chId=7 http://www.spectroscopynow.com/ http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=23237&type=Feature&page=1 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. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=23151&type=Feature&page=1 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. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=23010&type=Feature&page=1 A method was described for the preparation of nanostructured polyaniline via the oxidation polymerization of aniline hydrochloride in the presence of an anionic surfactant. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22952&type=Feature&page=1 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. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22850&type=Feature&page=1 Deconv, an open-source deconvolution software package, was developed for 3-D quantitative fluorescence microscopy imaging and was released under the GNU Public License. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22750&type=Feature&page=1 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. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22695&type=Feature&page=1 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. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22623&type=Feature&page=1 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. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22537&type=Feature&page=1 The photooxidation of sour cream packaged in cups with different light barrier properties was investigated by sensory analysis and front face fluorescence spectroscopy. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22457&type=Feature&page=1 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. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22359&type=Feature&page=1 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. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22277&type=Feature&page=1 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. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22199&type=Feature&page=1 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. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22161&type=Feature&page=1 Kudzu is a weedy vine that has overgrown almost 10 million acres in the southeastern United States. However, it could one day sprout into a dietary supplement to helpe reduce metabolic syndrome in millions of people. Mass spectrometry and UV spectroscopy have now been used to identify and quantify the putatively active isoflavones in extracts of the vine by US scientists. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22069&type=Feature&page=1 New developments that enable us to obtain detailed molecular structural changes in the topmost molecular layers of soft matter interfaces composed of complex bio-molecules are reviewed. In particular, the possibilities to probe interfaces of colloidal soft matter systems are discussed. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=22017&type=Feature&page=1 The bacterium Bacillus licheniformis is an expert nanotechnologist, according to scientists in India. They have used the microbe to help them synthesise gold nanocubes, as verified by UV spectroscopy and other techniques. The approach offers an alternative approach to making these important nanoparticles without using high temperatures or toxic solvents. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=21931&type=Feature&page=1 InGaN-GaN quantum dots grown with variations in the deposition time to vary their properties were studied by atomic force microscopy and photoluminescence spectroscopy. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=21874&type=Feature&page=1 Little is known about how the haem group that carries oxygen in blood and is the active centre of several enzymes is transported from where it is made in the cell to its host protein assembly. Now, UV-Vis spectroscopy has helped identify an enzyme that also functions as a haem transporter. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=21629&type=Feature&page=1 Staining of spermatozoa with fluorescein-Val-Ala-Asp-fluoromethylketone using fluorescence microscopy or flow cytometry to score activated caspases was compared in order to adopt the most accurate method for detection in human frozen-thawed testicular, epididymal and ejaculated spermatozoa. http://www.spectroscopyNOW.com/coi/cda/detail.cda?chId=7&id=21708&type=Feature&page=1 A team in the US has produced micrometre-wide discs and elongated rods from bi-coloured and multicolored compartments. The researchers used fluorescent emission studies and scanning electron microscopy to characterise their products.