The winners of the 2010 Pittcon Awards include a good number of spectroscopists, and names that will be familiar to readers.
Trace gas spectroscopic detection has drawn much interest in recent years, as it both allows a better understanding of the molecular spectra of weak overtone transitions and in situ non-intrusive sensing of compounds at low concentration. However, recording a broadband spectrum within a very short measurement time and with high sensitivity remains a challenge. Now, scientists at the Max Planck Institute of Quantum Optics have recorded ultrasensitive absorption broadband spectra within tens of microseconds by combining cavity enhancement and frequency comb spectroscopy.
Read more: Instantaneous trace gas fingerprint with laser frequency combs
New spectra, obtained with the SPIRE, PACS and HIFI instruments of the European Space Agency’s (ESA) Herschel Space Observatory during the performance verification phase, have been released by ESA and the instrument teams. Taken together with earlier images the observatory is now on the way to demonstrating that the promised imaging and spectroscopic capabilities are being met.
Understanding the extremely fast atomic mechanisms at work when a protein transitions from one shape to another has been an elusive scientific goal for years, but an essential one for elucidating the full range of protein function. How do proteins transition between distinct shapes without unfolding in the process? Until now, this question has been a hypothetical one, approached by computation only rather than experimentation. In a study in Cell (doi: 10.1016/j.cell.2009.11.022), researchers reveal for the first time computationally and experimentally the molecular pathway that a protein takes to cross the energy barrier. The study reports how folded proteins can efficiently change shape while avoiding unfolding, a critical requirement for any protein in the cell.
One of the ten winners of the 2010 Leibnitz Prize, Petra Schwille, is recognised for her work with fluorescence correlation spectroscopy.
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