Articles

Measuring brain activity using functional near infrared spectroscopy: a short review

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NIR-24-4-F1-s“Measuring brain activity using functional near infrared spectroscopy: a short review” by Felix Scholkmann and Martin Wolf looks at the various methods for performing fNIRS and some applications that demonstrate why this non-invasive, safely applicable, portable and cost-effective method is now an integral part of the techniques used in neuroscience.

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Following lipids in the food chain: determination of the iodine value using Raman micro-spectroscopy

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Raman2-24-3-sRaman spectroscopy is used to monitor the iodine value of algal-derived fish feed for its lipid content and to monitor algae samples for biofuel production.

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Reverse engineering of polymeric multilayers using AFM-based nanoscale IR spectroscopy and thermal analysis

AFM-IR-24-3-sIt is possible to obtain both infrared spectra and thermal analysis data of individual layers in a cross-sectioned multilayer film. Since both techniques are AFM-based, the topographical features can be readily linked to the spectroscopic and thermal data at a much higher spatial resolution than previously achievable.

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Local vs global climate change—investigation of dust from deep ice cores

X-ray-24-3-sThe study of dust particles in our atmosphere is important since they can act as a suppresor of global warming. The analysis of historical levels of dust in the atmosphere through ice cores is vital in this work. Synchrotron-radiation spectroscopic techniques such as TXRF and XANES can be used to analyse extremely small amounts of dust.

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Fireworks: composition and chemistry through Raman spectroscopy and SEM-EDS imaging

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Raman-24-3-sWhilst fireworks are a great entertainment, they can also be used for illegal activities as well as potentially containing dangerous chemicals. The combination of Raman spectroscopy and SEM-EDS turns out to be a very efficient analytical method. In fact, these complementary techniques may also be used to analyse other kinds of pyrotechnic artefacts, low explosive formulations, high explosives, explosion residues etc.

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