Abstract
The scanning transmission x-ray microscope at the National Synchrotron Light Source has been used to record x-ray absorption near-edge structure (XANES) spectra from 0.01-square-micrometer regions of organic specimens. The spectral features observed reflect the molecular structure of the dominant absorbing atoms and provide the contrast mechanism for high-resolution imaging with chemical sensitivity. This technique was used with x-ray energies near the carbon K absorption edge to identify and map separate phases in various polymer blends and to map the DNA distribution in chromosomes with a spatial resolution of 55 nanometers.
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Dates
Type | When |
---|---|
Created | 18 years, 10 months ago (Oct. 5, 2006, 7:03 p.m.) |
Deposited | 1 year, 7 months ago (Jan. 10, 2024, 10:08 p.m.) |
Indexed | 1 month ago (July 23, 2025, 8:35 a.m.) |
Issued | 32 years, 9 months ago (Nov. 6, 1992) |
Published | 32 years, 9 months ago (Nov. 6, 1992) |
Published Print | 32 years, 9 months ago (Nov. 6, 1992) |
@article{Ade_1992, title={Chemical Contrast in X-Ray Microscopy and Spatially Resolved XANES Spectroscopy of Organic Specimens}, volume={258}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1439809}, DOI={10.1126/science.1439809}, number={5084}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Ade, H. and Zhang, X. and Cameron, S. and Costello, C. and Kirz, J. and Williams, S.}, year={1992}, month=nov, pages={972–975} }