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Panel A, Results from the Medline database of the National Library of Medicine (NLM) from a search for articles on “Metal Nanoparticles,” indexed yearly from 2005 to 2019. Panel B, Illustration showing the categories into which articles on metal nanoparticles effects in infection and immunity can be sorted. Articles on metal particles for in vitro diagnosis and on metal particles used as carriers for other, known antimicrobials are not discussed in this review.
