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The Laser
Spectroscopy and Chemical Microtechnology Group at Oak
Ridge National Laboratory has two central themes: the analysis of
domains and interfaces with micro- to nanometer length scales and
innovations in mass spectrometry. This effort combines a number
of disciplines including chemical analysis, laser spectroscopy,
mass spectrometry, chemical separations, micro- and nanofluidics,
microfabrication, instrument design, and materials science. Our
laser spectroscopy activities include single molecule and single
nanoparticle spectroscopy, ultrafast spectroscopy for chemical imaging
at a 10-nm length scale and for dynamics, real-time chemical characterization
of individual aerosol particles including biological, environmental,
and combustion particles, and nonlinear optical spectroscopy of
surface-bound species. Chemical vapor deposition and characterization
of thin nano-textured diamond films is underway, targeted for their
use as robust accelerator stripping foils. Chemical microtechnology
activities include micro- and nanofluidics and microfabrication
of ion mobility and ion trap mass spectrometers. Microfluidics devices
are being developed for high performance chemical separations and
integration of chemical processing steps. The fluidics activities
are primarily directed toward the analysis of biological materials,
e.g., proteomics. The micro mass and ion mobility spectrometry efforts
are currently directed toward environmental monitoring and isotopic
enrichment determination problems. A mass spectrometer useful for
analysis of species at ultra-high mass (> 100 KDa) is under development.
For more information, contact Bob
Shaw at (865) 574-4882.
     
Provided
by Oak Ridge National Laboratory's Chemical Sciences Division
Rev: January 2007
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