Raman for diabetes monitoring

Part of managing diabetes involves piercing a finger several times daily to monitor blood sugar levels. Attempts have been made for decades to find a suitable spectroscopic method to replace this invasive procedure for monitoring glucose with a painless one. A number of spectroscopic techniques, including near infrared (NIR), have shown promise, but now instrumental developments in Raman spectroscopy may offer a solution.

Read more: Raman for diabetes monitoring

 

New bulk analysis spectroscopy technique

HARPES-3-sFor the past 30 years, one of the most valuable and widely used techniques for studying electronic structures has been Angle-Resolved PhotoEmission Spectroscopy (ARPES). However, this technique primarily looks at surfaces. Now, for the first time, bulk electronic structures have been opened to comparable scrutiny through a new variation of this standard called Hard x-ray Angle-Resolved PhotoEmission Spectroscopy (HARPES).

Read more: New bulk analysis spectroscopy technique

 

Mass spec imaging reveals how sticky egg captures sperm

sperm-sResearchers have used mass spectrometry imaging to uncover exactly how a human egg captures an incoming sperm to begin the fertilisation process, in a new study published this week in Science. The research identifies the sugar molecule that makes the outer coat of the egg “sticky”, which is vital for enabling the sperm and egg to bind together. Researchers across the world have been trying to understand what performs this task for over 30 years.

Read more: Mass spec imaging reveals how sticky egg captures sperm

   

2D spectroscopy illuminates electrons in semiconductors

2d-sUsing two-dimensional spectroscopy, researchers in Berlin have shown that electrons in a semiconductor are best described as a cloud with a size of a few nanometres. The cloud size is determined by the interaction of the electron with vibrations in the crystal lattice.

Read more: 2D spectroscopy illuminates electrons in semiconductors

 

Raman system for cervical cancer to be licensed to Irish start-up company

Raman-of-cancer-sDr Fiona Lyng of Dublin Institute of Technology is this year’s winner of the Enterprise Ireland “One to Watch” award. Dr Lyng is developing a new system using Raman spectroscopy to diagnose cervical cancer together with her colleagues at the Radiation and Environmental Science Centre at the Focas Institute in DIT and collaborators at the Coombe Women and Infants University Hospital.

Read more: Raman system for cervical cancer to be licensed to Irish start-up company

   

Single-molecule fluorescence reveals cause of protein misfolding

protein-misfolding-sA large number of illnesses stem from misfolded proteins, molecules composed of amino acids. Researchers at the University of Zurich, Switzerland, have now studied protein misfolding using a special spectroscopic technique— single-molecule fluorescence. Misfolding, as they report in Nature, is more frequent if the sequence of the amino acids in the neighbouring protein domains is very similar.

Read more: Single-molecule fluorescence reveals cause of protein misfolding

 

Nano-FT-IR spectroscopy with a thermal source

Nano-FTIRResearchers from the Basque nanoscience research center, CIC nanoGUNE, and Neaspec GmbH (Germany) have developed an instrument that allows for recording infrared spectra with a thermal source at a resolution that is 100 times better than in conventional infrared spectroscopy. In future, the technique could be applied for analysing the local chemical composition and structure of nanoscale materials in polymer composites, semiconductor devices, minerals or biological tissue.

Read more: Nano-FT-IR spectroscopy with a thermal source

   

Nanofocusing infrared light below diffraction limit

IR-nano-device-sA joint cooperation between three research groups at nanoGUNE (Donostia, San Sebastian, Spain) reports an innovative method to focus infrared light with tapered transmission lines to nanometre-size dimensions. This device could trigger the development of novel chemical and biological sensing tools, including ultra-small infrared spectrometers and lab-on-a-chip integrated biosensors.

Read more: Nanofocusing infrared light below diffraction limit

 

Bomem–Michaelson Award: Isao Noda

The Coblentz Society presents the ABB-sponsored Bomem–Michelson Award, which is dedicated to the memory of Professor A E. Michelson, developer of the Michelson Interferometer. ABB sponsors the award to honour a scientist who has advanced the technique(s) of vibrational, molecular, Raman or electronic spectroscopy. The recipient of the 2011 Bomem-Michelson Award is Dr Isao Noda of the Proctor and Gamble Company, Cincinnati, Ohio.

Read more: Bomem–Michaelson Award: Isao Noda

   

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