Magnetron Sputtering of Transition Metals as an Alternative Production Means for Antibacterial Surfaces

Kaltschmidt B, Asghari E, Kiel A, Cremer J, Anselmetti D, Kaltschmidt C, Kaltschmidt B, Hütten A (2022)
Microorganisms 10(9): 1843.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
In the light of the SARS-CoV-2 pandemic and growing numbers of bacteria with resistance to antibiotics, the development of antimicrobial coatings is rising worldwide. Inorganic coatings are attractive because of low environmental leakage and wear resistance. Examples for coatings are hot metal dipping or physical vapor deposition of nanometer coatings. Here, magnetron sputtering of various transition metals, such as gold, ruthenium and tantalum, was investigated. Metal films were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy dispersive X-ray spectroscopy (EDX). We investigated the growth of Pseudomonas aeruginosa isolated from household appliances on different sputter-coated metal surfaces. The fine-grained nanometric structure of these metal coatings was between 14 nm (tantalum) and 26 nm (gold) and the roughness was in a range of 164 pm (ruthenium) to 246 pm (gold). Antibacterial efficacy of metal surfaces followed the order: gold > tantalum > ruthenium. Interestingly, gold had the strongest inhibitory effect on bacterial growth, as analyzed by LIVE/DEAD and CFU assay. High-magnification SEM images showed dead bacteria characterized by shrinkage induced by metal coatings. We conclude that sputtering might be a new application for the development of antimicrobial surfaces on household appliances and or surgical instruments.
Stichworte
magnetron sputtering; transition metals; biofilm; antibacterial surfaces; pseudomonas aeruginosa
Erscheinungsjahr
2022
Zeitschriftentitel
Microorganisms
Band
10
Ausgabe
9
Art.-Nr.
1843
eISSN
2076-2607
Finanzierungs-Informationen
Open-Access-Publikationskosten wurden durch die Universität Bielefeld gefördert.
Page URI
https://pub.uni-bielefeld.de/record/2965740

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Kaltschmidt B, Asghari E, Kiel A, et al. Magnetron Sputtering of Transition Metals as an Alternative Production Means for Antibacterial Surfaces. Microorganisms. 2022;10(9): 1843.
Kaltschmidt, B., Asghari, E., Kiel, A., Cremer, J., Anselmetti, D., Kaltschmidt, C., Kaltschmidt, B., et al. (2022). Magnetron Sputtering of Transition Metals as an Alternative Production Means for Antibacterial Surfaces. Microorganisms, 10(9), 1843. https://doi.org/10.3390/microorganisms10091843
Kaltschmidt, Bernhard, Asghari, Ehsan, Kiel, Annika, Cremer, Julian, Anselmetti, Dario, Kaltschmidt, Christian, Kaltschmidt, Barbara, and Hütten, Andreas. 2022. “Magnetron Sputtering of Transition Metals as an Alternative Production Means for Antibacterial Surfaces”. Microorganisms 10 (9): 1843.
Kaltschmidt, B., Asghari, E., Kiel, A., Cremer, J., Anselmetti, D., Kaltschmidt, C., Kaltschmidt, B., and Hütten, A. (2022). Magnetron Sputtering of Transition Metals as an Alternative Production Means for Antibacterial Surfaces. Microorganisms 10:1843.
Kaltschmidt, B., et al., 2022. Magnetron Sputtering of Transition Metals as an Alternative Production Means for Antibacterial Surfaces. Microorganisms, 10(9): 1843.
B. Kaltschmidt, et al., “Magnetron Sputtering of Transition Metals as an Alternative Production Means for Antibacterial Surfaces”, Microorganisms, vol. 10, 2022, : 1843.
Kaltschmidt, B., Asghari, E., Kiel, A., Cremer, J., Anselmetti, D., Kaltschmidt, C., Kaltschmidt, B., Hütten, A.: Magnetron Sputtering of Transition Metals as an Alternative Production Means for Antibacterial Surfaces. Microorganisms. 10, : 1843 (2022).
Kaltschmidt, Bernhard, Asghari, Ehsan, Kiel, Annika, Cremer, Julian, Anselmetti, Dario, Kaltschmidt, Christian, Kaltschmidt, Barbara, and Hütten, Andreas. “Magnetron Sputtering of Transition Metals as an Alternative Production Means for Antibacterial Surfaces”. Microorganisms 10.9 (2022): 1843.
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2022-09-16T10:04:41Z
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