Antibacterial composite layers on Ti: role of ZnO nanoparticles

Agata Roguska , A. Belcarz , Przemysław Suchecki , Mariusz Andrzejczuk , Małgorzata Lewandowska

Abstract

Problem of Post-operative infections of implant materials caused by bacterial adhesion to their surfaces is very serious. Enhancement of antibacterial properties is potentially beneficial for biomaterials value. Therefore, the metallic and metallic oxide nanoparticles attract particular attention as antimicrobial factors. The aim of this work was to create nanotubular (NT) oxide layers on Ti with the addition of ZnO nanoparticles, designed for antibacterial biomedical coatings. Antimicrobial activities of titanium, TiO2 NT and ZnO/TiO2 NT surfaces were evaluated against bacterial strain typical for orthopaedic infections: S. epidermidis. TiO2 NT alone killed the free bacterial cells significantly but promoted their adhesion to the surfaces. The presence of moderate amount of ZnO nanoparticles significantly reduced the S. epidermidis cells adhesion and viability of bacterial cells in contact with modified surfaces. However, higher amount of loaded nanoZnO showed the reduced antimicrobial properties than the medium amount, suggesting the overdose effect.
Author Agata Roguska - [Institute of Physical Chemistry Polish Academy of Sciences (IChF PAN)]
Agata Roguska,,
-
- Instytut Chemii Fizycznej Polskiej Akademii Nauk
, A. Belcarz
A. Belcarz,,
-
, Przemysław Suchecki ZPM
Przemysław Suchecki,,
- Division of Materials Design
, Mariusz Andrzejczuk ZPM
Mariusz Andrzejczuk,,
- Division of Materials Design
, Małgorzata Lewandowska ZPM
Małgorzata Lewandowska,,
- Division of Materials Design
Journal seriesArchives of Metallurgy and Materials, ISSN 1733-3490
Issue year2016
Vol61
Pages213-216
Publication size in sheets0.5
Keywords in EnglishEDS, electron tomography, Li ion batteries, silver coating, STEM
DOIDOI:10.1515/amm-2016-0039
Languageen angielski
Score (nominal)30
ScoreMinisterial score = 0.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 28-11-2017, ArticleFromJournal
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