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Why are nanosilver and nanocopper used in some antimicrobial coatings?
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nanoparticle
Image showing nanoparticles of an alloy of gold (yellow) and palladium (blue) on an acid-treated carbon support (gray). These particles were employed as catalysts for the formation of hydrogen peroxide from hydrogen (white) and oxygen (red).
Nanosilver and nanocopper are incorporated into various coatings and materials because they exhibit significant antimicrobial effects. By integrating these nanoparticles into surfaces, manufacturers can create products that actively resist microbial contamination.1
These applications are particularly valuable in environments where maintaining hygiene is critical, such as in hospitals, medical facilities, and areas dedicated to food preparation. Additionally, these particles are used in food packaging to help keep food fresh and safe by protecting it from microbial growth. The use of such technology is part of a broader effort to improve the efficiency and sustainability of materials by manipulating matter at the nanoscale.12