Apparently true for any alloy. Lots of hospitals are moving to this weirdly cost-effective intervetion.https://en.wikipedia.org/wiki/Antimicrobial_copper-alloy_touch_surfaces …
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Metals that oxidize and tarnish are effective. Copper alloys would be effective while gold would not. Once an oxide layer forms, metal less effective. Many anti-microbial products are using nano sized particles of silver, more expensive and effective than copper.
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This study includes brass. The chemistry of this stuff (a rare thing I am qualified to discuss!) is likely such that any copper-containing alloy would show an effect. http://www.clearwater-tec.com/libary/pdf/Paper_Noyce_JHI_066.pdf …
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For bacteria not viruses







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