Washington Post news article
Tag: copper
Inactivation of bacterial and viral biothreat agents on metallic copper surfaces
Findings:
The study tested inactivation of monkeypox virus and vaccinia, and Gram-negative bacteria (Brucella melitensis, Burkholderia mallei, Burkholderia pseudomallei, Francisella tularensis tularensis and Yersinia pestis) and of Gram-positive endospore-forming Bacillus anthracis. All agents were rapidly inactivated on copper between 30 s and 5 min
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Antimicrobial activity of copper surfaces against carbapenemase-producing contemporary Gram-negative clinical isolates
Findings:
Copper has significant antimicrobial activity against multidrug-resistant nosocomial Gram-negative pathogens.
Antimicrobial Properties of Selected Copper Alloys on Staphylococcus aureus and Escherichia coli in Different Simulations of Environmental Conditions: With vs. without Organic Contamination
Findings:
This study confirmed the bactericidal or bacteriostatic properties of the copper alloys tested, in both variants of the experiment: with vs. without organic contamination. The use in hospitals of equipment made of copper alloys should help to prevent the spread of pathogenic micro-organisms
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Antibacterial Mechanism of Copper-bearing Antibacterial Stainless Steel against E.Coli
Findings:
Copper-bearing antibacterial stainless steels have excellent antibacterial functions with antibacterial rate to E.coli over 99.99%. Copper ions play the dominant role in the antibacterial effect of antibacterial stainless steels acted with E.coli
Using copper to prevent the spread of respiratory viruses
Findings:
Inactivation of coronavirus on copper and copper alloy surfaces results in fragmentation of the viral genome, ensuring that inactivation is irreversible. This suggests that both ionic species of copper are required directly and/or indirectly for virus inactivation and that Cu(I) may be more significant in the longer term. Brasses containing at least 70% copper were very effective at inactivating HuCoV-229E , and the rate of inactivation was directly proportional to the percentage of copper
Inactivation of Norovirus on Dry Copper Alloy Surfaces
Findings:
An inoculum of 5×104 pfu MNV applied to copper, and high copper content alloy. No infectious virus was evident after 30 minutes on copper and 60 minutes on copper nickel but there was no reduction of infectivity on stainless steel dry surfaces in simulated wet fomite and dry touch contamination. The highest rate of MNV inactivation on copper surfaces occurs upon immediate contact. The rate of inactivation was approximately proportional to copper content
Aerosol and Surface Stability of SARS-CoV-2 as Compared with SARS-CoV-1
Findings:
On copper, no viable SARS-CoV-2 was measured after 4 hours and no viable SARS-CoV-1 was measured after 8 hours
Inactivation of Influenza A Virus on Copper versus Stainless Steel Surfaces
Metallic Copper as an Antimicrobial Surface
Findings:
The antimicrobial properties of copper surfaces have now been firmly established. Hospital trials have shown a reduction in bacterial counts, indicating that copper surfaces are a promising additional tool alongside other hygienic measures to curb the number and severity of hospital-acquired infections.
PubMed Link ( Full-text )