Cold plasma demonstrates clean doom for bacteria

Researchers have demonstrated a prototype device that can rid hands, feet, or even underarms of bacteria, including the hospital superbug MRSA.

The device works by creating something called a plasma, which produces a cocktail of chemicals in air that kill bacteria but are harmless to skin. A related approach could see the use of plasmas to speed the healing of wounds…

Plasmas are known as the fourth state of matter, after solid, liquid, and gas. They are a soup of atoms that have had their electrons stripped off by, for example, a high voltage.

The new research focuses on so-called cold atmospheric plasmas.

Rather than turning a whole group of atoms into plasma, a more delicate approach strips the electrons off just a few, sending them flying…

The resulting plasma is harmful to bacteria, viruses, and fungi – the approach is already used to disinfect surgical tools…

Professor Gregor Morfill said that more testing of the devices is necessary before they end up in widespread use, but he said that there is already significant interest from industry.

RTFA. The systems have been miniaturized enough to be battery-operated and portable.

Cripes, I can see them supplanting underarm deodorant sticks someday.

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