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Journal Highlight: Pigment and binder concentrations in modern paint samples determined by IR and Raman spectroscopy

Date: Jun 4, 2018

Author: spectroscopyNOW

The relative concentrations of binders (acrylic and alkyd) and inorganic pigments in different paint samples have been quantified by IR and Raman spectroscopies.

Read More thumbnail image: Journal Highlight Pigment and binder concentrations in modern paint samples determined by IR and Raman spectroscopy

Raman breath test: Detecting illicit drugs

Date: Jun 1, 2018

Author: David Bradley

An inexpensive and yet high-performance chip based on surface-enhanced Raman spectroscopy (SERS) can test for illicit drugs such as cocaine, opioids, and marijuana as quickly as a breathalyzer can detect alcohol.according to new research from the USA. The device can quickly reveal such drugs in for samples of blood, urine, saliva, and even on the breath.

Read More thumbnail image: Raman breath test Detecting illicit drugs

Fossilized algae: Assisting Raman food testing

Date: May 1, 2018

Author: David Bradley

Photonic crystals derived from fossilised diatoms could be used to boost surface enhanced Raman spectroscopy (SERS) for food safety testing, according to scientists in China and the USA.

Read More thumbnail image: Fossilized algae Assisting Raman food testing

Journal Highlight: Structural determinants of ligand binding in truncated hemoglobins: Resonance Raman spectroscopy of the native states and their carbon monoxide and hydroxide complexes

Date: Apr 30, 2018

Author: spectroscopyNOW

The use of resonance Raman spectroscopy to study ligand binding in truncated hemoglobins has been reviewed, focussing on three hemoglobins from Thermobifida fusca and Pseudoalteromonas haloplanktis.

Read More thumbnail image: Journal Highlight Structural determinants of ligand binding in truncated hemoglobins Resonance Raman spectroscopy of the native states and their carbon monoxide and hydroxide complexes

Journal Highlight: Fast microplastics identification with stimulated Raman scattering microscopy

Date: Apr 3, 2018

Author: spectroscopyNOW

Stimulated Raman scattering microscopy has been used for the first time to identify five different high production‐volume polymer types in microplastics extracted from environmental or consumer product samples.

Read More thumbnail image: Journal Highlight Fast microplastics identification with stimulated Raman scattering microscopy

Resisting resistance rapidly: Raman to the rescue

Date: Apr 1, 2018

Author: David Bradley

A three-hour test can reveal whether a new antibiotic is likely to retain its efficacy against a pathogenic bacteria, thanks to research that enlisted Raman spectroscopy and other techniques.

Read More thumbnail image: Resisting resistance rapidly Raman to the rescue

Journal Highlight: Multiwavelength surface-enhanced Raman spectroscopy using rainbow trapping in width-graded plasmonic gratings

Date: Mar 5, 2018

Author: spectroscopyNOW

Plasmonic gratings of rectangular groove profile with gradient in the groove width perform as unique SERS substrates by simultaneously confining multiple laser wavelengths within the visible and near-infrared regime inside their rectangular nanotrenches.

Read More thumbnail image: Journal Highlight Multiwavelength surface-enhanced Raman spectroscopy using rainbow trapping in width-graded plasmonic gratings

Green catalyst: Hybrid approach

Date: Mar 1, 2018

Author: David Bradley

The noble metal palladium is used to drive catalytic processes in the manufacture of almost three-quarters of pharmaceuticals. Now, a more environmentally benign approach has been developed by US chemists who have used Raman and other techniques to study their "green" catalyst.

Read More thumbnail image: Green catalyst Hybrid approach

Chalk one up to Raman: World's oldest crayon

Date: Feb 1, 2018

Author: David Bradley

Micro-Raman has been used to analyse ochre artefacts from Mesolithic palaeo-lake Flixton ostensibly in modern-day Yorkshire. The study reveals that our ancestors may have used ochre crayons to decorate animals skins or make other art.

Read More thumbnail image: Chalk one up to Raman Worlds oldest crayon

Journal Highlight: Raman-based technique for measuring thermal conductivity of graphene and related materials

Date: Jan 29, 2018

Author: spectroscopyNOW

A Raman spectroscopic method of measuring thermal conductivity of thin films has been described and the results achieved for graphene and other two-dimensional materials have been reviewed.

Read More thumbnail image: Journal Highlight Raman-based technique for measuring thermal conductivity of graphene and related materials
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