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News Release 08-221
Mother Nature Knows Nano
Scientists use DNA and gold particles to engineer nanotube structures
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The design of the DNA scaffold system permits formation of a variety of tubular structures carrying 5 nm AuNPs (gold particles). Researchers observed formation of tubes displaying patterns of AuNPs in stacked rings, single spirals, double spirals, and nested spiral tubes. This TEM image shows all four of these conformations.
Credit: Hao Yan, Arizona State University
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This movie, created from electron tomographic images, shows the 3D architecture of a double-walled nanotube formed with 5 nm and 10 nm AuNPs (gold particles) placed on opposite surfaces of the DNA scaffold.
Credit: Hao Yan, Arizona State University
This cartoon depicts a single nanotube formed from DNA tile arrays with gold particles attached.
Credit: Hao Yan, Arizona State University
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The researchers' findings appear in the January 2, 2009, issue of Science.
Credit: Copyright 2009 AAAS
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