Journal
POLYMERS
Volume 12, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/polym12081713
Keywords
copper nanoparticles; cuprous oxide nanoparticles; cupric oxide nanoparticles; linear low-density polyethylene; antibacterial surfaces; antibacterial activity
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Funding
- Research Authority of the Ariel University, Israel
- Ministry of Science and Technology, Israel
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Consumption of contaminated water may lead to dangerous and even fatal water-borne diseases. Disinfection of drinking water is the most effective solution for this problem. The most common water treatment methods are based on the use of toxic disinfectants. Composites of polymers with nanosized metals and their oxides may become a good alternative to the existing methods. Expanding the scope of our previous publication, copper, cuprous, and copper oxide nanoparticles were immobilized onto linear low-density polyethylene by a simple thermal adhesion method. The antibacterial efficiency of the immobilized nanoparticles was tested against Gram-negativeEscherichia coliand Gram-positiveStaphylococcus aureusin batch experiments and for the first time the efficiency of these composites is reported for continuous flow regime. Immobilized copper and cuprous oxide nanoparticles demonstrated a high ability to eradicate bacteria after 30 min. These composites showed no or very limited leaching of copper ions into the aqueous phase both in the presence and in the absence of a bacterial suspension. Immobilized copper and cuprous oxide nanoparticles can be used for batch or continuous disinfection of water.
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