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Deposition of Antimicrobial Copper-Rich Coatings on Polymers by Atmospheric Pressure Jet Plasmas

Inanimate surfaces serve as a permanent reservoir for infectious microorganisms, which is a growing problem in areas in everyday life. Coating of surfaces with inorganic antimicrobials, such as copper, can contribute to reduce the adherence and growth of microorganisms. The use of a DC operated air...

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Autores principales: Kredl, Jana, Kolb, Juergen F., Schnabel, Uta, Polak, Martin, Weltmann, Klaus-Dieter, Fricke, Katja
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5502967/
https://www.ncbi.nlm.nih.gov/pubmed/28773396
http://dx.doi.org/10.3390/ma9040274
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author Kredl, Jana
Kolb, Juergen F.
Schnabel, Uta
Polak, Martin
Weltmann, Klaus-Dieter
Fricke, Katja
author_facet Kredl, Jana
Kolb, Juergen F.
Schnabel, Uta
Polak, Martin
Weltmann, Klaus-Dieter
Fricke, Katja
author_sort Kredl, Jana
collection PubMed
description Inanimate surfaces serve as a permanent reservoir for infectious microorganisms, which is a growing problem in areas in everyday life. Coating of surfaces with inorganic antimicrobials, such as copper, can contribute to reduce the adherence and growth of microorganisms. The use of a DC operated air plasma jet for the deposition of copper thin films on acrylonitrile butadiene styrene (ABS) substrates is reported. ABS is a widespread material used in consumer applications, including hospitals. The influence of gas flow rate and input current on thin film characteristics and its bactericidal effect have been studied. Results from X-ray photoelectron spectroscopy (XPS) and atomic force microscopy confirmed the presence of thin copper layers on plasma-exposed ABS and the formation of copper particles with a size in the range from 20 to 100 nm, respectively. The bactericidal properties of the copper-coated surfaces were tested against Staphylococcus aureus. A reduction in growth by 93% compared with the attachment of bacteria on untreated samples was observed for coverage of the surface with 7 at. % copper.
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spelling pubmed-55029672017-07-28 Deposition of Antimicrobial Copper-Rich Coatings on Polymers by Atmospheric Pressure Jet Plasmas Kredl, Jana Kolb, Juergen F. Schnabel, Uta Polak, Martin Weltmann, Klaus-Dieter Fricke, Katja Materials (Basel) Article Inanimate surfaces serve as a permanent reservoir for infectious microorganisms, which is a growing problem in areas in everyday life. Coating of surfaces with inorganic antimicrobials, such as copper, can contribute to reduce the adherence and growth of microorganisms. The use of a DC operated air plasma jet for the deposition of copper thin films on acrylonitrile butadiene styrene (ABS) substrates is reported. ABS is a widespread material used in consumer applications, including hospitals. The influence of gas flow rate and input current on thin film characteristics and its bactericidal effect have been studied. Results from X-ray photoelectron spectroscopy (XPS) and atomic force microscopy confirmed the presence of thin copper layers on plasma-exposed ABS and the formation of copper particles with a size in the range from 20 to 100 nm, respectively. The bactericidal properties of the copper-coated surfaces were tested against Staphylococcus aureus. A reduction in growth by 93% compared with the attachment of bacteria on untreated samples was observed for coverage of the surface with 7 at. % copper. MDPI 2016-04-07 /pmc/articles/PMC5502967/ /pubmed/28773396 http://dx.doi.org/10.3390/ma9040274 Text en © 2016 by the authors; Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kredl, Jana
Kolb, Juergen F.
Schnabel, Uta
Polak, Martin
Weltmann, Klaus-Dieter
Fricke, Katja
Deposition of Antimicrobial Copper-Rich Coatings on Polymers by Atmospheric Pressure Jet Plasmas
title Deposition of Antimicrobial Copper-Rich Coatings on Polymers by Atmospheric Pressure Jet Plasmas
title_full Deposition of Antimicrobial Copper-Rich Coatings on Polymers by Atmospheric Pressure Jet Plasmas
title_fullStr Deposition of Antimicrobial Copper-Rich Coatings on Polymers by Atmospheric Pressure Jet Plasmas
title_full_unstemmed Deposition of Antimicrobial Copper-Rich Coatings on Polymers by Atmospheric Pressure Jet Plasmas
title_short Deposition of Antimicrobial Copper-Rich Coatings on Polymers by Atmospheric Pressure Jet Plasmas
title_sort deposition of antimicrobial copper-rich coatings on polymers by atmospheric pressure jet plasmas
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5502967/
https://www.ncbi.nlm.nih.gov/pubmed/28773396
http://dx.doi.org/10.3390/ma9040274
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