Regulators Stamp Copper as a Germ Killer - New York Times: "The market for antimicrobial doorknobs, hospital fixtures and other products that kill germs on contact may be about to take on a coppery sheen.
The Copper Development Association, a trade group for copper companies, said Tuesday that federal regulators had approved its application to market a group of copper alloys, including brass and bronze, as capable of killing bacteria and microbes effectively enough to protect human health."
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