Articles

On-chip chemical fingerprinting of an analyte using both Raman spectroscopy and fluorescence

Raman-24_02-F-sPraveen Ashok and Kishan Dholakia of St Andrews University, UK, describe the scope of optofluidic devices that can be implemented using the waveguide confined Raman spectroscopy (WCRS) technique they have developed. I am particularly impressed by the sample size of whisky shown in Figure 2—true Scottish style!

Read more: On-chip chemical fingerprinting of an analyte using both Raman spectroscopy and fluorescence

 

Time-resolved Raman spectroscopy for non-invasive detection through non-transparent materials

Raman-24_01-F3-sSince attempts to blow up planes using liquid explosives, we have all been restricted in what we can take onboard when we fly. Raman spectroscopy is offering a solution. However, “Time-resolved Raman spectroscopy for non-invasive detection through non-transparent materials” by Ingeborg Iping Petterson and Freek Ariese argues that time-resolved Raman spectroscopy (TRRS) techniques provide better spatial selectivity than the major alternative, spatially offset Raman spectroscopy (SORS). Applications for through-skin measurements and depth analysis in catalytic extrudates are also described.

Read more: Time-resolved Raman spectroscopy for non-invasive detection through non-transparent materials

   

Right angle light scattering protein thermostability screening: from research to development

FL-24_01-F4-sIn the pharmaceutical industry, biologicals are of increasing interest due to their high therapeutic benefits. Amongst many other questions, the stability of new canditates is of great importance. Patrick Garidel describes this in “Right angle light scattering protein thermostability screening: from research to development”. The ability of this and other fluorescence-based techniques to detect very small quantities is of great benefit.

Read more: Right angle light scattering protein thermostability screening: from research to development

   

ATR/FT-IR spectroscopy for the characterisation of magnetic tape materials

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IR-24_01-F1-sDo you remember magnetic tape-to-tape recorders and players? In any case, I am sure you will be interested in this article looking at the use of FT-IR spectroscopy to help the conservation of tapes in the collection of the National Museums Berlin. In “ATR/FT-IR spectroscopy for the characterisation of magnetic tape materials”, Elena Gómez-Sánchez, Simon Kunz and Stefan Simon describe how by investigating the state of the base layer of the tape, conservation efforts can be prioritised to those tapes in most immediate danger.

Read more: ATR/FT-IR spectroscopy for the characterisation of magnetic tape materials

   

Counterfeit detection of pharmaceutical tablets with transmission Raman spectroscopy

Raman-23_06-F2-sCounterfeiting is a major problem throughout the world and transmission Raman spectroscopy proves to be a very useful tool for fast and non-destructive detection of counterfeit pharmaceuticals.

Read more: Counterfeit detection of pharmaceutical tablets with transmission Raman spectroscopy

   

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