For 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).
Researchers 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.
Using 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.
Dr 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.
A 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.
Researchers 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.
A 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.
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.
Howard Mark was awarded the BS degree in chemistry from the City College of New York in 1963, and earned his MA degree in chemistry from the City University of New York in 1966. He was awarded the Ph.D. degree in physical chemistry from New York University in 1972. He remained at NYU as a research fellow, performing research in surface chemistry and in applications of the then-new field of FT-IR spectroscopy.
Chemists at the Karlsruhe Institute of Technology (KIT) and the Technische Universität München (TUM) in Germany have introduced an improvement on nuclear magnetic resonance (NMR) measurements for identifying chemical compounds.
The European Molecular Biology Organization (EMBO) and the Federation of European Biochemical Societies (FEBS) announce Carol V. Robinson, Professor of Chemistry at the University of Oxford, UK, as the winner of the 2011 FEBS/EMBO Women in Science Award. Professor Robinson has been recognised for her pioneering work in the development of mass spectrometry as a tool used for investigating the structure and dynamics of protein complexes.
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