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Nature Photonics 2, v (1 February 2008) | doi:10.1038/nphoton.2007.281

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Cover story The ability to separate and arrange nanowires of differing composition is much sought after in the world of nanotechnology. Now Ming Wu and co-workers from the University of California and Lawrence Berkeley National Laboratory have demonstrated optoelectronic tweezers that are able to separate individual metallic and semiconducting nanowires with diameters smaller than 20 nm, and orient and manipulate arrays of silver nanowires.