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# Chemical Analysis; Magnesium Oxide Dice

NIST scientists are developing new three-dimensional chemical imaging methods. Using a scanning transmission electron microscope, a tilting stage, and sensitive detectors, NIST researchers can construct images that reveal both the chemical components and the complex shapes of crystal structures. This image shows cubes of magnesium oxide. Nanoscale particles of gold were deposited on the crystal faces to help define the surface topography.

*CSTL, microscopy, STEM, 3D imaging, nano particles, nanotechnology, crystallography, crystal structure

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March 7, 2005

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