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Copper nanoparticles protect food from bacteria

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Scientists have proposed adding copper nano-particles into food packaging materials on this basis that this could help prevent a variety of foodborne diseases.

It has been known for centuries that copper has antimicrobial properties. For example, it was observed in Roman times that water contained in copper vessels or transported in copper conveyance systems was of better quality (i.e., no or little visible slime formation) than water contained or transported in other materials.
 
 

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