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Sources:
Antimicrobial activity of metal: mechanisms, molecular targets and applications (2013)
http://www.nature.com/nrmicro/journal/v11/n6/full/nrmicro3028.html
Metal-based antibacterial substrates for biomedical applications (2015)
http://pubs.acs.org/doi/abs/10.1021/acs.biomac.5b00773
Antimicrobial polymers with metal nanoparticles (2015)
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4307351/
Images:
https://en.wikipedia.org/wiki/Edwin_Smith_Papyrus#/media/File:Edwin_Smith_Papyrus_v2.jpg
https://simple.wikipedia.org/wiki/Alexander_Fleming#/media/File:Alexander_Fleming_1945.jpg
https://en.wikipedia.org/wiki/Silver#/media/File:Silver_crystal.jpg