HOSPITAL workers often have to wash their hands dozens of times a day — and may need a minute or more to do the process right, by scrubbing with soap and water. But new devices could reduce the task to just four seconds, cleaning even hard-to-reach areas under fingernails.

Instead of scrubbing, the workers would put their hands into a small box that bathes them with plasma — the same sort of luminous gas found in neon signs, fluorescent tubes and TV displays. This plasma, though, is at room temperature and pressure, and is engineered to zap germs, including the drug-resistant supergerm MRSA.



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