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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.

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Needle-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.

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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 thumbnail image: Raman microspectroscopy reveals long-term extracellular activity of Chlamydiae

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.

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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 thumbnail image: Quick screening of crystal methamphetaminemethyl sulfone exhibits by Raman spectroscopy

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.

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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 thumbnail image: Tentative differentiation between Iznik tiles and copies with Raman spectroscopy using both laboratory and portable instruments

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.

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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 thumbnail image: Raman spectra of organic acids obtained using a portable instrument at -5 C in a mountain area at 2000 m ASL

Microbial Raman

Date: May 1, 2010

Author: David Bradley

Surface-enhanced Raman scattering (SERS) can be used in a new microarray approach to microbial detection that is label-free, according to researchers writing in the April issue of the journal Analytical Chemistry.

Read More thumbnail image: Microbial Raman
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