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Precision Raman: Effect in the field

Date: Dec 1, 2016

Author: David Bradley

New technology that could change the way in which electronics are printed facilitates high quality, direct spray deposition of semiconducting molecular crystals on to any surface. The precise nature of a single crystal field-effect transistor made this was has been ascertained using polarised Raman spectroscopy.

Read More thumbnail image: Precision Raman Effect in the field

Journal Highlight: Allergic reactions in red tattoos: Raman spectroscopy for 'fingerprint' detection of chemical risk spectra in tattooed skin and culprit tattoo inks

Date: Nov 28, 2016

Author: spectroscopyNOW

Raman spectroscopy has been tested as a screening technique for chemical characterisation of tattoo pigments in pathologic reacting tattoos and tattoo ink stock products to depict unsafe pigments and metabolites.

Read More thumbnail image: Journal Highlight Allergic reactions in red tattoos Raman spectroscopy for fingerprint detection of chemical risk spectra in tattooed skin and culprit tattoo inks

Journal Highlight: Recent advances in linear and non-linear Raman spectroscopy. Part X

Date: Nov 21, 2016

Author: spectroscopyNOW

This annual review provides an overview of advances in Raman spectroscopy as reflected in papers published each year in the Journal of Raman Spectroscopy and related journals.

Read More thumbnail image: Journal Highlight Recent advances in linear and non-linear Raman spectroscopy_ Part X

Cocaine detection: Concentrating on SERS

Date: Nov 1, 2016

Author: David Bradley

A cocaine detector based on surface enhanced Raman spectroscopy (SERS) could be much more efficient and effective alternative to existing technology, according to researchers from Valencia and the Basque Country. Their approach works at very low concentrations of cocaine.

Read More thumbnail image: Cocaine detection Concentrating on SERS

Journal Highlight: Decorated plasterwork in the Alhambra investigated by Raman spectroscopy: comparative field and laboratory study

Date: Oct 12, 2016

Author: spectroscopyNOW

This work presents the results of the study of plasterwork decorations located on the stalactite vaults of the Hall of the Kings in the Alhambra (Granada, Spain) by means of Raman micro-spectroscopy.

Read More thumbnail image: Journal Highlight Decorated plasterwork in the Alhambra investigated by Raman spectroscopy comparative field and laboratory study

Journal Highlight: Inverse SORS for detecting a low Raman-active turbid sample placed inside a highly Raman-active diffusely scattering matrix – A feasibility study

Date: Oct 3, 2016

Author: spectroscopyNOW

A feasibility study has used inverse SORS to detect a very low Raman-active turbid sample inside a highly Raman-active diffusely scattering matrix, exemplifed by embedding chicken muscle tissue into solid paraffin blocks.

Read More thumbnail image: Journal Highlight Inverse SORS for detecting a low Raman-active turbid sample placed inside a highly Raman-active diffusely scattering matrix  A feasibility study

Diabetic contacts: An eye on Raman glucose sensors

Date: Oct 1, 2016

Author: David Bradley

People with diabetes must monitor their blood glucose concentration so that they can take appropriate medication in a timely manner. This usually involves the use of a pin-prick test, which many people find painful and inconvenient. Now, contact lenses that use Raman spectroscopy to measure glucose in tears could offer a wearable and non-invasive testing alternative.

Read More thumbnail image: Diabetic contacts An eye on Raman glucose sensors

Journal Highlight: Raman and surface-enhanced Raman spectroscopy on horns and their correlation with biomechanical properties

Date: Sep 5, 2016

Author: spectroscopyNOW

Raman spectral analysis and mechanical tests were carried out on the horns of buffalo, cattle and sheep to study the molecular compositions and their correlation with biomechanical properties as potential biomaterial scaffolds.

Read More thumbnail image: Journal Highlight Raman and surface-enhanced Raman spectroscopy on horns and their correlation with biomechanical properties

De-ice, ice baby: Under pressure

Date: Sep 1, 2016

Author: David Bradley

Raman spectroscopy and X-ray diffraction measurements have worked together with first-principles calculations to examine the high-pressure structural behaviour of magnesium chloride, a well known de-icing compound, at a million atmospheres.

Read More thumbnail image: De-ice ice baby Under pressure

Journal Highlight: A study of the observed shift in the peak position of olivine Raman spectra as a result of shock induced by hypervelocity impacts

Date: Aug 15, 2016

Author: spectroscopyNOW

The effect of impact speed (and hence peak shock pressure) on the shift in Raman spectra for San Carlos olivine impacting Al foil has been measured in the context of cometary grains captured by the Stardust mission.

Read More thumbnail image: Journal Highlight A study of the observed shift in the peak position of olivine Raman spectra as a result of shock induced by hypervelocity impacts
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