Evaluating the antibacterial efficacy of a silver nanocomposite surface coating against nosocomial pathogens as an antibiofilm strategy to prevent hospital infections Article Swipe
James A. Butler
,
Sian Morgan
,
Lewis Jones
,
Mathew Upton
,
Alexandros Besinis
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1080/17435390.2024.2379809
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1080/17435390.2024.2379809
Antimicrobial nanocoatings may be a means of preventing nosocomial infections, which account for significant morbidity and mortality. The role of hospital sink traps in these infections is also increasingly appreciated. We describe the preparation, material characterization and antibacterial activity of a pipe cement-based silver nanocoating applied to unplasticized polyvinyl chloride, a material widely used in wastewater plumbing. Three-dimensional surface topography imaging and scanning electron microscopy showed increased roughness in all surface finishes versus control, with grinding producing the roughest surfaces. Silver stability within nanocoatings was >99.89% in deionized water and bacteriological media seeded with bacteria. The nanocoating exhibited potent antibiofilm (99.82-100% inhibition) and antiplanktonic (99.59-99.99% killing) activity against three representative bacterial species and a microbial community recovered from hospital sink traps. Hospital sink trap microbiota were characterized by sequencing the 16S rRNA gene, revealing the presence of opportunistic pathogens from genera including Pseudomonas, Enterobacter and Clostridioides. In a benchtop model sink trap system, nanocoating antibiofilm activity against this community remained significant after 11 days but waned following 25 days. Silver nanocoated disks in real-world sink traps in two university buildings had a limited antibiofilm effect, even though in vitro experiments using microbial communities recovered from the same traps demonstrated that the nanocoating was effective, reducing biofilm formation by >99.6% and killing >98% of planktonic bacteria. We propose that conditioning films forming in the complex conditions of real-world sink traps negatively impact nanocoating performance, which may have wider relevance to development of antimicrobial nanocoatings that are not tested in the real-world.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1080/17435390.2024.2379809
- https://www.tandfonline.com/doi/pdf/10.1080/17435390.2024.2379809?needAccess=true
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- bronze
- Cited By
- 3
- References
- 107
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4400982861
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4400982861Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1080/17435390.2024.2379809Digital Object Identifier
- Title
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Evaluating the antibacterial efficacy of a silver nanocomposite surface coating against nosocomial pathogens as an antibiofilm strategy to prevent hospital infectionsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-05-18Full publication date if available
- Authors
-
James A. Butler, Sian Morgan, Lewis Jones, Mathew Upton, Alexandros BesinisList of authors in order
- Landing page
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https://doi.org/10.1080/17435390.2024.2379809Publisher landing page
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https://www.tandfonline.com/doi/pdf/10.1080/17435390.2024.2379809?needAccess=trueDirect link to full text PDF
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YesWhether a free full text is available
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bronzeOpen access status per OpenAlex
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https://www.tandfonline.com/doi/pdf/10.1080/17435390.2024.2379809?needAccess=trueDirect OA link when available
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Materials science, Biofilm, Antimicrobial, Pseudomonas aeruginosa, Coating, Sink (geography), Microbiology, Bacteria, Nanotechnology, Biology, Geography, Genetics, CartographyTop concepts (fields/topics) attached by OpenAlex
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3Total citation count in OpenAlex
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2025: 3Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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