Nanopatterning of steel by one-step anodization for anti-adhesion of bacteria

Abstract Surface nanopatterning of metals has been an effective technique for improved performance and functionalization. However, it is of great challenge to fabricate nanostructure on carbon steels despite their extensive use and urgent needs to maintain the performance reliability and durability....

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Autores principales:	Shiqiang Chen, Yuan Li, Y. Frank Cheng
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/45bbd208b15848808644d539c00e47dc
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spelling	oai:doaj.org-article:45bbd208b15848808644d539c00e47dc2021-12-02T16:06:44ZNanopatterning of steel by one-step anodization for anti-adhesion of bacteria10.1038/s41598-017-05626-02045-2322https://doaj.org/article/45bbd208b15848808644d539c00e47dc2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05626-0https://doaj.org/toc/2045-2322Abstract Surface nanopatterning of metals has been an effective technique for improved performance and functionalization. However, it is of great challenge to fabricate nanostructure on carbon steels despite their extensive use and urgent needs to maintain the performance reliability and durability. Here, we report a one-step anodization technique to nanopattern a carbon steel in 50 wt.% NaOH solution for highly effective anti-adhesion by sulphate reducing bacteria (SRB), i.e., Desulfovibrio desulfuricans subsp. desulfuricans (Beijerinck) Kluyver and van Niel. We characterize the morphology, structure, composition, and surface roughness of the nanostructured film formed on the steel as a function of anodizing potential. We quantify the surface hydrophobicity by contact angle measurements, and the SRB adhesion by fluorescent analysis. The optimal anodization potential of 2.0 V is determined for the best performance of anti-adhesion of SRB to the steel, resulting in a 23.5 times of reduction of SRB adhesion compared to bare steel. We discuss the mechanisms for the film formation on the steel during anodization, and the high-performance anti-adhesion of bacteria to nanopatterned steels. Our technique is simple, cost-effective and environment-friendly, providing a promising alternative for industry-scale surface nanopatterning of carbon steels for effective controlling of bacterial adhesion.Shiqiang ChenYuan LiY. Frank ChengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shiqiang Chen Yuan Li Y. Frank Cheng Nanopatterning of steel by one-step anodization for anti-adhesion of bacteria
description	Abstract Surface nanopatterning of metals has been an effective technique for improved performance and functionalization. However, it is of great challenge to fabricate nanostructure on carbon steels despite their extensive use and urgent needs to maintain the performance reliability and durability. Here, we report a one-step anodization technique to nanopattern a carbon steel in 50 wt.% NaOH solution for highly effective anti-adhesion by sulphate reducing bacteria (SRB), i.e., Desulfovibrio desulfuricans subsp. desulfuricans (Beijerinck) Kluyver and van Niel. We characterize the morphology, structure, composition, and surface roughness of the nanostructured film formed on the steel as a function of anodizing potential. We quantify the surface hydrophobicity by contact angle measurements, and the SRB adhesion by fluorescent analysis. The optimal anodization potential of 2.0 V is determined for the best performance of anti-adhesion of SRB to the steel, resulting in a 23.5 times of reduction of SRB adhesion compared to bare steel. We discuss the mechanisms for the film formation on the steel during anodization, and the high-performance anti-adhesion of bacteria to nanopatterned steels. Our technique is simple, cost-effective and environment-friendly, providing a promising alternative for industry-scale surface nanopatterning of carbon steels for effective controlling of bacterial adhesion.
format	article
author	Shiqiang Chen Yuan Li Y. Frank Cheng
author_facet	Shiqiang Chen Yuan Li Y. Frank Cheng
author_sort	Shiqiang Chen
title	Nanopatterning of steel by one-step anodization for anti-adhesion of bacteria
title_short	Nanopatterning of steel by one-step anodization for anti-adhesion of bacteria
title_full	Nanopatterning of steel by one-step anodization for anti-adhesion of bacteria
title_fullStr	Nanopatterning of steel by one-step anodization for anti-adhesion of bacteria
title_full_unstemmed	Nanopatterning of steel by one-step anodization for anti-adhesion of bacteria
title_sort	nanopatterning of steel by one-step anodization for anti-adhesion of bacteria
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/45bbd208b15848808644d539c00e47dc
work_keys_str_mv	AT shiqiangchen nanopatterningofsteelbyonestepanodizationforantiadhesionofbacteria AT yuanli nanopatterningofsteelbyonestepanodizationforantiadhesionofbacteria AT yfrankcheng nanopatterningofsteelbyonestepanodizationforantiadhesionofbacteria
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Nanopatterning of steel by one-step anodization for anti-adhesion of bacteria

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