Researchers in Canada are working on a disposable, paper-thin strip for explosives trace detection (ETD).
Invented by not-for-profit national research organisation Mitacs, the strip is being further developed by nanomaterials specialist Applied Quantum Materials (AQM) and tested by the Royal Canadian Mounted Police (RCMP).
Under an ultraviolet light, a glowing strip becomes dark when trace amounts of explosive are present. The strips can be carried in a pocket, require no power or maintenance, and are designed to give a response instantly. They work by using silicon quantum dots embedded into paper. AQM says the silicon used in the device is safe.
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