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Home > Press > Nanotomography: Crystal clear

Abstract:
X-rays from a synchrotron can produce incredible high-resolution three-dimensional images of nanoscale crystal structures

Researchers have combined medical imaging equipment with radiation from a particle accelerator to produce a powerful new method for three-dimensional (3D) imaging. The technique, developed by YU Shuhong, TIAN Yangchao and co-workers at the University of Science and Technology of China in Hefei,CAS, has already produced remarkable 3D renderings of a copper sulphide crystal, and could find many applications in materials development and the life sciences.

Nanotomography: Crystal clear

China | Posted on August 29th, 2008

Electron microscopes can provide detailed two-dimensional information on functional nanostructures, but are limited in applications involving complex 3D shapes. On the other hand, X-rays can penetrate to great depths and are used in medical computed-tomography scans to take images in slices that are then compiled to render a 3D image.

Yu, Tian and co-workers used the beamline from the National Synchrotron Radiation Laboratory in Hefei to provide a very powerful X-ray flux. The beam was carefully manipulated to make 3D images of a recently discovered type of copper sulphide crystal.

The images show that the crystal is made up of four hexagonal plates about 200 nanometres thick (pictured). Together they form a cuboctahedron - a polyhedron with six square and eight triangular faces.

The image details indicate that the X-ray technique is useful to image nanomaterials with complex structures. (adapted from Nature China)

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About Chinese Academy of Sciences
CAS strives to build itself into a scientific research base at advanced international level, a base for fostering and bringing up advanced S&T talents, and a base for promoting the development of China's high and new technology industries. By 2010, CAS will have about 80 national institutes noted for their powerful capacities in S&T innovation and sustainable development or with distinctive features; thirty of them will become internationally acknowledged, high-level research institutions, and three to five will be world class.

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Chief-Editor's Information:
Guo Haiyan
Editor
Bulletin of Chinese Academy of Sciences
CAS Institute of Policy & Management
P.O.Box 8712, Beijing 100080, China.

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