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September 11th, 2003
Using packed silver nanowires as sensitive explosives detector
Minuscule wires a few nanometers across are proving to be versatile electronic components, as demonstrated recently by University of California, Berkeley, chemists who used silver nanowires as key elements of a sensitive explosives detector. The researchers, led by Peidong Yang, made about a trillion silver nanowires - essentially nanocopic needles - and packed them tightly together in a thin layer, all needles pointing in the same direction, like rafted logs on a river.
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