Abstract While trees have long been considered vital natural air purifiers due to their photosynthetic capacity and ability to filter airborne particulates, this article proposes that the abiotic constituents of the Earth’s crust, specifically transition metals such as zinc, copper, and silver, offer faster, broader-spectrum, and more scalable mechanisms for air purification when applied using…
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AbstractHistorical battlefield mortality was often due less to the severity of injury than to the subsequent wound infections. This article explores how medieval use of copper, silver, and zinc in armor inadvertently contributed to antimicrobial protection through passive ion delivery into open wounds. These naturally occurring metal-based antimicrobial mechanisms, long before the advent of germ…
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