If you're familiar with nanotechnology, you know that nanostructures can show up in a great variety of shapes, such as nanotubes, nanorings or nanobelts. But have you heard about nanohelices? These new nanostructures, which bear a resemblance to the helical configuration of DNA discovered 50 years ago, are built from zinc oxide. These nanohelices can "reach lengths of up to 100 microns, with diameters from 300 to 700 nanometers and widths from 100 to 500 nanometers." And they could become a basis for creating nanoscale sensors, transducers, resonators and other devices that rely on electromechanical coupling. Read more...
Sources: Georgia Institute of Technology, September 9, 2005; The Chinese Academy of Sciences, September 29, 2005; and various web sites
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