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<p>[QUOTE="desertgem, post: 1215622, member: 15199"]Zinc corrodes faster than copper, and silver the least, but the silver has to be fresh ( no tarnish, maybe a lot of dip) to work/ Back when silver was still in circulation, early 70s, I would have students put a clad dime, silver dime, and a copper cent on an agar plate with Staph, one plate with out of pocket change and another with cleaned, shiney scrubbed coins. I am sure you can guess the results. One the first plate, bacteria grew on the clad and copper cent from pocket change, the silver dime a little ring of inhibition due to soluble silver. The cleaned coins plate showed no action on the clad, a little more for the cent, and a wide range for silver.</p><p><br /></p><p>As a very very young child I remember the doctor ( who couldn't use penicillin the miracle drug except on death cases) swabbed my throat with silver nitrate to kill the bacteria. Of course it turned black if you opened your mouth to the sun for a period of time.........how fun for a 6 yo., but it killed the infection. Don't try this at home!![/QUOTE]</p><p><br /></p>
[QUOTE="desertgem, post: 1215622, member: 15199"]Zinc corrodes faster than copper, and silver the least, but the silver has to be fresh ( no tarnish, maybe a lot of dip) to work/ Back when silver was still in circulation, early 70s, I would have students put a clad dime, silver dime, and a copper cent on an agar plate with Staph, one plate with out of pocket change and another with cleaned, shiney scrubbed coins. I am sure you can guess the results. One the first plate, bacteria grew on the clad and copper cent from pocket change, the silver dime a little ring of inhibition due to soluble silver. The cleaned coins plate showed no action on the clad, a little more for the cent, and a wide range for silver. As a very very young child I remember the doctor ( who couldn't use penicillin the miracle drug except on death cases) swabbed my throat with silver nitrate to kill the bacteria. Of course it turned black if you opened your mouth to the sun for a period of time.........how fun for a 6 yo., but it killed the infection. Don't try this at home!![/QUOTE]
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