Comparative performance of a panel of commercially available antimicrobial nanocoatings in Europe

Johan W Molling, Jacques W Seezink, Birgit EJ Teunissen, Inhua Muijrers-Chen, Paul JA Borm Zuyd University of Applied Sciences, Heerlen, the Netherlands Background: Bacterial resistance against the classic antibiotics is posing an increasing challenge for the prevention and treatment of infections...

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Autores principales:	Molling JW, Seezink JW, Teunissen BEJ, Muijrers-Chen I, Borm PJA
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2014
Materias:	Medical technology R855-855.5 Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/4afdbb01087a48abb082acca64969497
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spelling	oai:doaj.org-article:4afdbb01087a48abb082acca649694972021-12-02T00:27:45ZComparative performance of a panel of commercially available antimicrobial nanocoatings in Europe1177-8903https://doaj.org/article/4afdbb01087a48abb082acca649694972014-11-01T00:00:00Zhttp://www.dovepress.com/comparative-performance-of-a-panel-of-commercially-available-antimicro-peer-reviewed-article-NSAhttps://doaj.org/toc/1177-8903 Johan W Molling, Jacques W Seezink, Birgit EJ Teunissen, Inhua Muijrers-Chen, Paul JA Borm Zuyd University of Applied Sciences, Heerlen, the Netherlands Background: Bacterial resistance against the classic antibiotics is posing an increasing challenge for the prevention and treatment of infections in health care environments. The introduction of antimicrobial nanocoatings with active ingredients provides alternative measures for active killing of microorganisms, through a preventive hygiene approach. Purpose: The purpose of this study was to investigate the antimicrobial activity of a panel of antimicrobial coatings available on the European market. Methods: A comparative, biased selection of commercially available antimicrobial coatings was tested for antimicrobial efficiency. Suppliers were contacted to deliver their coatings on glass and/or stainless steel substrates. In total, 23 coatings from eleven suppliers were received, which were investigated for their effect on the growth of Escherichia coli, using the International Organization for Standardization (ISO) 22196 protocol. Results: The majority of nanomaterial-containing coatings (n=13) contained nanosilver (n=12), while only one had photocatalytic TiO2 as the active particle. The differences in antimicrobial activity among all of the coatings, expressed as log reduction values, varied between 1.3 and 6.6, while the variation within the nanomaterial-based group was between 2.0 and 6.2. Although nanosilver coatings were on average very effective in reducing the number of viable bacteria after challenge, the strongest log reduction (6.6) was seen with a coating that has immobilized, covalently bound quaternary ammonium salt in its matrix. Besides these two compounds, coatings containing TiO2, poly(dimethylsiloxane), triclosan, or zinc pyrithione evoked 100% killing of E. coli. Conclusion: Our findings indicate that nanosilver dominates the nanoparticle-based coatings and performs adequately. However, considering the unknowns in relation to ecotoxicological emission and effects, it needs further consideration before widespread application into different environments. Keywords: coatings, nanotechnology, nanosilver, biocides Molling JWSeezink JWTeunissen BEJMuijrers-Chen IBorm PJADove Medical PressarticleMedical technologyR855-855.5Chemical technologyTP1-1185ENNanotechnology, Science and Applications, Vol 2014, Iss default, Pp 97-104 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medical technology R855-855.5 Chemical technology TP1-1185
spellingShingle	Medical technology R855-855.5 Chemical technology TP1-1185 Molling JW Seezink JW Teunissen BEJ Muijrers-Chen I Borm PJA Comparative performance of a panel of commercially available antimicrobial nanocoatings in Europe
description	Johan W Molling, Jacques W Seezink, Birgit EJ Teunissen, Inhua Muijrers-Chen, Paul JA Borm Zuyd University of Applied Sciences, Heerlen, the Netherlands Background: Bacterial resistance against the classic antibiotics is posing an increasing challenge for the prevention and treatment of infections in health care environments. The introduction of antimicrobial nanocoatings with active ingredients provides alternative measures for active killing of microorganisms, through a preventive hygiene approach. Purpose: The purpose of this study was to investigate the antimicrobial activity of a panel of antimicrobial coatings available on the European market. Methods: A comparative, biased selection of commercially available antimicrobial coatings was tested for antimicrobial efficiency. Suppliers were contacted to deliver their coatings on glass and/or stainless steel substrates. In total, 23 coatings from eleven suppliers were received, which were investigated for their effect on the growth of Escherichia coli, using the International Organization for Standardization (ISO) 22196 protocol. Results: The majority of nanomaterial-containing coatings (n=13) contained nanosilver (n=12), while only one had photocatalytic TiO2 as the active particle. The differences in antimicrobial activity among all of the coatings, expressed as log reduction values, varied between 1.3 and 6.6, while the variation within the nanomaterial-based group was between 2.0 and 6.2. Although nanosilver coatings were on average very effective in reducing the number of viable bacteria after challenge, the strongest log reduction (6.6) was seen with a coating that has immobilized, covalently bound quaternary ammonium salt in its matrix. Besides these two compounds, coatings containing TiO2, poly(dimethylsiloxane), triclosan, or zinc pyrithione evoked 100% killing of E. coli. Conclusion: Our findings indicate that nanosilver dominates the nanoparticle-based coatings and performs adequately. However, considering the unknowns in relation to ecotoxicological emission and effects, it needs further consideration before widespread application into different environments. Keywords: coatings, nanotechnology, nanosilver, biocides
format	article
author	Molling JW Seezink JW Teunissen BEJ Muijrers-Chen I Borm PJA
author_facet	Molling JW Seezink JW Teunissen BEJ Muijrers-Chen I Borm PJA
author_sort	Molling JW
title	Comparative performance of a panel of commercially available antimicrobial nanocoatings in Europe
title_short	Comparative performance of a panel of commercially available antimicrobial nanocoatings in Europe
title_full	Comparative performance of a panel of commercially available antimicrobial nanocoatings in Europe
title_fullStr	Comparative performance of a panel of commercially available antimicrobial nanocoatings in Europe
title_full_unstemmed	Comparative performance of a panel of commercially available antimicrobial nanocoatings in Europe
title_sort	comparative performance of a panel of commercially available antimicrobial nanocoatings in europe
publisher	Dove Medical Press
publishDate	2014
url	https://doaj.org/article/4afdbb01087a48abb082acca64969497
work_keys_str_mv	AT mollingjw comparativeperformanceofapanelofcommerciallyavailableantimicrobialnanocoatingsineurope AT seezinkjw comparativeperformanceofapanelofcommerciallyavailableantimicrobialnanocoatingsineurope AT teunissenbej comparativeperformanceofapanelofcommerciallyavailableantimicrobialnanocoatingsineurope AT muijrerscheni comparativeperformanceofapanelofcommerciallyavailableantimicrobialnanocoatingsineurope AT bormpja comparativeperformanceofapanelofcommerciallyavailableantimicrobialnanocoatingsineurope
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Comparative performance of a panel of commercially available antimicrobial nanocoatings in Europe

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