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Communication

Copper-Silver Alloy Coated Door Handles as a Potential Antibacterial Strategy in Clinical Settings

1
Elplatek A/S, Bybjergvej 7, DK-3060 Espergærde, Denmark
2
Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads bldg. 221, DK-2800 Kgs Lyngby, Denmark
3
Department of Immunology and Microbiology, Costerton Biofilm Center, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, DK-2200 Copenhagen N, Denmark
4
Southwest Regional Wound Care Center, 2002 Oxford Ave, Lubbock, TX 79410, USA
5
Department of Clinical Microbiology, Rigshospitalet, Juliane Maries vej 22, 2100 Copenhagen Ø, Denmark
*
Author to whom correspondence should be addressed.
Coatings 2020, 10(8), 790; https://doi.org/10.3390/coatings10080790
Received: 28 July 2020 / Revised: 10 August 2020 / Accepted: 11 August 2020 / Published: 14 August 2020
(This article belongs to the Special Issue Antibacterial Coatings and Biofilm)
Coating surfaces with a copper-silver alloy in clinical settings can be an alternative or complementary antibacterial strategy to other existing technologies and disinfection interventions. A newly developed copper-silver alloy coating has a high antibacterial efficacy against common pathogenic bacteria in laboratory setups, and the purpose of this study is to determine the antibacterial efficacy of this copper-silvery alloy in real-world clinical settings. Two field trials were carried out at a private clinic and a wound care center. Door handles coated with the copper-silver alloy had a lower total aerobic plate count (1.3 ± 0.4 Log CFU/cm2 and 0.8 ± 0.3 Log CFU/cm2, CFU stands for Colony Forming Units) than the reference uncoated material on-site (2.4 ± 0.4 Log CFU/cm2 for the stainless steel and 1.7 ± 0.4 Log CFU/cm2 for the satin brass). The copper-silver alloy did not selectively reduce specific bacterial species. This study points to the possibility of a successful long-term implementation of the copper-silver alloy coating as an antibacterial strategy. View Full-Text
Keywords: antibacterial coating; healthcare-associated infections; touch-surfaces antibacterial coating; healthcare-associated infections; touch-surfaces
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MDPI and ACS Style

Ciacotich, N.; Kvich, L.; Sanford, N.; Wolcott, J.; Bjarnsholt, T.; Gram, L. Copper-Silver Alloy Coated Door Handles as a Potential Antibacterial Strategy in Clinical Settings. Coatings 2020, 10, 790. https://doi.org/10.3390/coatings10080790

AMA Style

Ciacotich N, Kvich L, Sanford N, Wolcott J, Bjarnsholt T, Gram L. Copper-Silver Alloy Coated Door Handles as a Potential Antibacterial Strategy in Clinical Settings. Coatings. 2020; 10(8):790. https://doi.org/10.3390/coatings10080790

Chicago/Turabian Style

Ciacotich, Nicole, Lasse Kvich, Nicholas Sanford, Joseph Wolcott, Thomas Bjarnsholt, and Lone Gram. 2020. "Copper-Silver Alloy Coated Door Handles as a Potential Antibacterial Strategy in Clinical Settings" Coatings 10, no. 8: 790. https://doi.org/10.3390/coatings10080790

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