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Titel: Increasing Antibacterial Efficiency of Cu Surfaces by targeted Surface Functionalization via Ultrashort Pulsed Direct Laser Interference Patterning
VerfasserIn: Müller, Daniel W.
Lößlein, Sarah Marie
Terriac, Emmanuel
Brix, Kristina
Siems, Katharina
Moeller, Ralf
Kautenburger, Ralf
Mücklich, Frank
Sprache: Englisch
Titel: Advanced Materials Interfaces
Bandnummer: 8
Heft: 5
Verlag/Plattform: Wiley
Erscheinungsjahr: 2020
Freie Schlagwörter: antimicrobial copper surfaces
laser surface structuring
ultrasort pulsed direct laser interference patterning
DDC-Sachgruppe: 540 Chemie
620 Ingenieurwissenschaften und Maschinenbau
Dokumenttyp: Journalartikel / Zeitschriftenartikel
Abstract: Copper (Cu) exhibits great potential for application in the design of antimicrobial contact surfaces aiming to reduce pathogenic contamination in public areas as well as clinically critical environments. However, current application perspectives rely purely on the toxic effect of emitted Cu ions, without considering influences on the interaction of pathogenic microorganisms with the surface to enhance antimicrobial efficiency. In this study, it is investigated on how antibacterial properties of Cu surfaces against Escherichia coli can be increased by tailored functionalization of the substrate surface by means of ultrashort pulsed direct laser interference patterning (USP‐DLIP). Surface patterns in the scale range of single bacteria cells are fabricated to purposefully increase bacteria/surface contact area, while parallel modification of the surface chemistry allows to involve the aspect of surface wettability into bacterial attachment and the resulting antibacterial effectivity. The results exhibit a delicate interplay between bacterial adhesion and the expression of antibacterial properties, where a reduction of bacterial cell viability of up to 15‐fold can be achieved for E. coli on USP‐DLIP surfaces in comparison to smooth Cu surfaces. Thereby, it can be shown how the antimicrobial properties of copper surfaces can be additionally enhanced by targeted surface functionalization.
DOI der Erstveröffentlichung: 10.1002/admi.202001656
Link zu diesem Datensatz: urn:nbn:de:bsz:291--ds-334328
hdl:20.500.11880/30743
http://dx.doi.org/10.22028/D291-33432
ISSN: 2196-7350
2196-7350
Datum des Eintrags: 26-Feb-2021
Bezeichnung des in Beziehung stehenden Objekts: Supporting Information
In Beziehung stehendes Objekt: https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fadmi.202001656&file=admi202001656-sup-0001-SuppMat.pdf
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Fakultät: NT - Naturwissenschaftlich- Technische Fakultät
Fachrichtung: NT - Chemie
NT - Materialwissenschaft und Werkstofftechnik
Professur: NT - Prof. Dr. Guido Kickelbick
NT - Prof. Dr. Frank Mücklich
Sammlung:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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