Optimization of the Silver Nanoparticles PEALD Process on the Surface of 1-D Titania Coatings

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http://hdl.handle.net/10138/230142

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Radtke , A , Jędrzejewski , T , Kozak , W , Sadowska , B , Więckowska-Szakiel , M , Talik , E , Mäkelä , M I , Leskelä , M A & Piszczek , P 2017 , ' Optimization of the Silver Nanoparticles PEALD Process on the Surface of 1-D Titania Coatings ' , Nanomaterials , vol. 7 , no. 7 , 193 . https://doi.org/10.3390/nano7070193

Title: Optimization of the Silver Nanoparticles PEALD Process on the Surface of 1-D Titania Coatings
Author: Radtke, Aleksandra; Jędrzejewski, Tomasz; Kozak, Wiesław; Sadowska, Beata; Więckowska-Szakiel, Marzena; Talik, Ewa; Mäkelä, Maarit Inkeri; Leskelä, Markku Antero; Piszczek, Piotr
Contributor: University of Helsinki, Department of Chemistry
University of Helsinki, Department of Chemistry
Date: 2017-07-24
Language: eng
Number of pages: 19
Belongs to series: Nanomaterials
ISSN: 2079-4991
URI: http://hdl.handle.net/10138/230142
Abstract: Plasma enhanced atomic layer deposition (PEALD) of silver nanoparticles on the surface of 1-D titania coatings, such as nanotubes (TNT) and nanoneedles (TNN), has been carried out. The formation of TNT and TNN layers enriched with dispersed silver particles of strictly defined sizes and the estimation of their bioactivity was the aim of our investigations. The structure and the morphology of produced materials were determined using X-ray photoelectron spectroscopy (XPS) and scanning electron miscroscopy (SEM). Their bioactivity and potential usefulness in the modification of implants surface have been estimated on the basis of the fibroblasts adhesion and proliferation assays, and on the basis of the determination of their antibacterial activity. The cumulative silver release profiles have been checked with the use of inductively coupled plasma-mass spectrometry (ICPMS), in order to exclude potential cytotoxicity of silver decorated systems. Among the studied nanocomposite samples, TNT coatings, prepared at 3, 10, 12 V and enriched with silver nanoparticles produced during 25 cycles of PEALD, revealed suitable biointegration properties and may actively counteract the formation of bacterial biofilm.
Subject: 116 Chemical sciences
221 Nano-technology
216 Materials engineering
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