Raman Spectroscopy / Ezine
Ionic liquids in the gas phase - Raman spectroscopy reveals molecular secret
Date: Oct 1, 2010
Author: David Bradley
At first glance ionic liquids would not seem that unusual, heat sodium chloride to a high enough temperature and it will melt. But, ionic materials that are liquid at room temperature are much stranger. Now, a gas-phase Raman study has been used to understand their nature and reveals that in the gas phase each ion of the pair exists as a distinct molecule.
Read More
On-site analysis of Chinese Cloisonné enamels from fifteenth to nineteenth centuries
Date: Sep 6, 2010
Author:
A selection of 22 rare Chinese cloisonné enamels, from fifteenth to nineteenth century A.D., has been studied by Raman spectroscopy to reveal the compositions of the glazes.
Read MoreNeedle-free diabetes testing
Date: Sep 1, 2010
Author: David Bradley
A new device based on Raman spectroscopy has been developed by scientists at MIT to help patients with diabetes monitor their blood glucose levels without needing to prick their fingers to take a blood sample.
Read More
Raman microspectroscopy reveals long-term extracellular activity of Chlamydiae
Date: Aug 2, 2010
Author:
Confocal Raman microspectroscopy was applied to differentiate between reticulate bodies and elementary bodies of Protochlamydia amoebophila and to demonstrate in situ the labelling of this amoeba symbiont after addition of isotope-labelled phenylalanine.
Read More
Smooth SERS support
Date: Aug 1, 2010
Author: David Bradley
The judicious use of SERS-active nanoparticles directly or indirectly can surmount the inherent obstacle in the way of the more widespread adoption of surface-enhanced Raman scattering (SERS) studies. Proof of principle in the current work involves activating an organic monolayer by attaching silver nanoparticles.
Read More
Quick screening of crystal methamphetamine/methyl sulfone exhibits by Raman spectroscopy
Date: Jul 5, 2010
Author:
The rapid identification of mixtures of crystal meth by Raman spectroscopy without the need for a separation technique is discussed as an alternative to GC/MS.
Read More
Gold wrinkles boost SERS
Date: Jul 1, 2010
Author: David Bradley
Polydimethylsiloxane can be used to produce wrinkles on a glass surface to pattern lines of gold which are twice as effective as conventional SERS substrates, according to German and Spanish researchers.
Read More
Tentative differentiation between Iznik tiles and copies with Raman spectroscopy using both laboratory and portable instruments
Date: Jun 7, 2010
Author:
Iznik tiles dated from the 16th century, copies of tiles and pottery of Theodore Deck from the 19th century, and also tiles without any information on their origin were analyzed with both laboratory and portable Raman instruments.
Read More
Volcanic spectroscopy
Date: Jun 1, 2010
Author: David Bradley
Italian researchers have used salver of techniques, including microscopic Raman and Fourier transform infrared (FTIR) spectroscopies, X-ray diffraction and scanning electron microscopy-energy dispersive X-ray to study powdered pigments found in bowls from the Pompeii archaeological site as well as wall-painting fragments from the Vesuvian region.
Read More
Raman spectra of organic acids obtained using a portable instrument at -5 °C in a mountain area at 2000 m ASL
Date: May 3, 2010
Author:
Well-resolved Raman spectra of organic acids were successfully obtained under field conditions using a portable Raman instrument under low-temperature atmospheric conditions at an altitude of 2000 m.
Read More
