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, TiO[2] NT and ZnO/TiO[2] NT surfaces were evaluated against bacterial strain typical for orthopaedic infections: S. epidermidis. TiO[2] 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.

Details

Title
Antibacterial Composite Layers on Ti: Role of ZnO Nanoparticles
Author
Roguska, A; Belcarz, A; Suchecki, P; Andrzejczuk, M; Lewandowska, M
Pages
213-216
Publication year
2016
Publication date
2016
Publisher
Polish Academy of Sciences
ISSN
17333490
e-ISSN
23001909
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1861126819
Copyright
Copyright De Gruyter Open Sp. z o.o. 2016