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Future Directions for Synchrotron IR Microspectroscopy

To date, the vast majority of synchrotron FT-IRM experiments have been performed on static systems, at ambient pressure and temperature, and in the mid-lR region (some of the few exceptions have been described above). [Pg.466]

At the other end of the spectrum, combined X-ray (fluorescence, absorption and diffraction) and IR microscopic analyses on the same sample represent an activity of growing interest among the biomedical community. For example, protein mis-folding has been correlated with trace metal uptake in Alzheimer s disease [32], Parkinson s disease [91], scrapie [36] and amyotrophic lateral sclerosis [91], Likewise, in human hair the protein and lipid composition of the cuticle, cortex and medulla have been correlated with trace metal content associated with mummification techniques [74], and with environmental metal exposure [92]. [Pg.466]

NA) objective. A 64 x 64 pixel MCT FPA detector was used to image the cell, where the resulting field of view on the FPA was 35 X 35pm with 0.54pm per pixel. The IR image (192 x 192 pixels) was generated in 72 min with a 64 x 64 pixel FPA detector (200 scans, 6cm resolution). Scale bar = 20pm. [Pg.467]

FPA detector, with the thermal source surveying areas many millimeters on a side and offering excellent performance down to approximately 10 pm spatial resolution. With the synchrotron, the resolution limit may be extended down to around 1 pm, but over a much more limited area. [Pg.468]

The author acknowledges Paul Dumas, Larry Carr, Gwyn Williams and Randy Smith for data contributions, and for many valuable discussions. L.M.M. is partially supported by the National Institutes of Health (R01-GM66873). The NSLS is supported by the United States Department of Energy under contract DE-AG02-98GH10886. [Pg.468]


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