NDLI: Antibacterial activity of microstructured sacrificial anode thin films by combination of silver with platinum group elements (platinum, palladium, iridium).

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Köller, Manfred Bellova, Petri Javid, Siyamak Memar Motemani, Yahya Khare, Chinmay Sengstock, Christina Tschulik, Kristina Schildhauer, Thomas A. Ludwig, Alfred
Description	Author Affiliation: Köller M ( Surgical Research, BG University Hospital Bergmannsheil, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany. Electronic address: Manfred.Koeller@rub.de.); Bellova P ( Surgical Research, BG University Hospital Bergmannsheil, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.); Javid SM ( Institute for Materials, Faculty of Mechanical Engineering, Ruhr-University, Universitätsstraße 150, 44801 Bochum, Germany.); Motemani Y ( Institute for Materials, Faculty of Mechanical Engineering, Ruhr-University, Universitätsstraße 150, 44801 Bochum, Germany.); Khare C ( Institute for Materials, Faculty of Mechanical Engineering, Ruhr-University, Universitätsstraße 150, 44801 Bochum, Germany.); Sengstock C ( Surgical Research, BG University Hospital Bergmannsheil, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.); Tschulik K ( Micro- & Nano-Electrochemistry and Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, 44780 Bochum, Germany.); Schildhauer TA ( Surgical Research, BG University Hospital Bergmannsheil, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.); Ludwig A ( Institute for Materials, Faculty of Mechanical Engineering, Ruhr-University, Universitätsstraße 150, 44801 Bochum, Germany.)
Abstract	Five different Ag dots arrays (16 to 400dots/mm ) were fabricated on a continuous platinum, palladium, or iridium thin film and for comparison also on titanium film by sputter deposition and photolithographic patterning. To analyze the antibacterial activity of these microstructured films Staphylococcus aureus (S. aureus) were placed onto the array surfaces and cultivated overnight. To analyze the viability of planktonic as well as surface adherent bacteria, the applied bacterial fluid was subsequently aspirated, plated on blood agar plates and adherent bacteria were detected by fluorescence microscopy. A particular antibacterial effect towards S. aureus was induced by Ag dot arrays on each of the platinum group thin film (sacrificial anode system for Ag) in contrast to Ag dot arrays fabricated on the Ti thin films (non-sacrificial anode system for Ag). Among platinum group elements the Ir-Ag system exerted the highest antibacterial activity which was accompanied by most advanced dissolution of the Ag dots and Ag ion release compared to Ag dots on Pt or Pd.
File Format	HTM / HTML
ISSN	09284931
Journal	Materials Science and Engineering: C
Volume Number	74
e-ISSN	18730191
Language	English
Publisher	Elsevier
Publisher Date	2017-05-01
Publisher Place	Netherlands
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Biomaterials Condensed Matter Physics Bioengineering Mechanical Engineering

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