Even though lead in fuel has been banned for a number of years, it is still present in by the roadside, as are many other pollutants from vehicles. The combination of Raman spectroscopy and µ-ED-XRF is of particular value. The advantage Raman has is in the possibility of focusing on individual grains, thereby obtaining the spectrum of each grain that comes from traffic-emitted particles.
In principle, electromagnetic SEIRS should be as strong as electromagnetic surface-enhanced Raman scattering (SERS) but, in SEIRS, disturbing fluorescence is absent. In order to get maximum IR vibrational signal enhancement for sensing of rare molecules, strong resonant scattering of plasmonic objects is recommended.
Philipp Gütlich, Christian Schröder and Volker Schünemann update us on “Mössbauer spectroscopy—an indispensable tool in solid state research”. One of the more high-profile applications of the technique has been its use in the exploration of Mars. Whilst the latest NASA mission to Mars that successfully landed on 6 August, when we were putting this issue together, does not have a Mössbauer spectrometer onboard, the earlier Opportunity rover does and is still active on Mars at present and the next mission will again. There are many other fascinating applications of Mössbauer spectroscopy which make this article one you must read.
A. Roque, I. Ponte and P. Suau look at “Infrared spectroscopy of nucleoprotein complexes”. The advantages of IR spectroscopy have allowed them to determine the structure of linker histones and protamines as they interact with DNA. Linker histones are involved with the condensation of the thick chromatin fibre and are believed to have a regulatory role in transcription through the modulation of chromatin higher order structure.
- Measuring brain activity using functional near infrared spectroscopy: a short review
- Following lipids in the food chain: determination of the iodine value using Raman micro-spectroscopy
- Reverse engineering of polymeric multilayers using AFM-based nanoscale IR spectroscopy and thermal analysis
- Local vs global climate change—investigation of dust from deep ice cores
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