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Published online 23 September 2005 | Nature | doi:10.1038/news050919-13
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Plasma pencil sharpens up
Charged gas plume stays cool while killing bacteria.
Think of it as a miniature light sabre. Scientists have unveiled a 'plasma pencil', a handheld device that generates a thin plume of charged gas that can kill bacteria, and could one day etch away tumours without damaging surrounding tissue.
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