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The Perfect Nanocube: Precise Control of Size, Shape, and Composition

Perfect cubes down to 3.4 nanometers

NIST
Mon, 09/13/2010 - 06:00
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With growing interest in using nanoparticles for everything from antibacterial socks to medical imaging to electronic devices, the need to understand the environmental, health, and safety risks of these particles also grows. Researchers at the National Institute of Standards and Technology (NIST) have developed a simple process for producing nanocrystals that will enable studies of certain physical and chemical properties that affect how nanoparticles interact with the world around them.

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Because nanoparticles behave differently from bulk samples of the same material, new tests to understand how they affect biological systems must be developed. Toxicologists determine the hazards posed by nanoparticles by introducing them to a biological system and monitoring the effects, but they currently lack a set of control particles whose size, shape, and composition have been carefully produced and characterized.

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