Journal
CORROSION SCIENCE
Volume 103, Issue -, Pages 215-222Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2015.11.021
Keywords
Titanium; SEM; XRD; Potentiostatic; Anodic films
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The present work reports on the corrosion behavior and antibacterial activity of self-organized TiO2 nano tubes in dependence of annealing temperature. TiO2 nanotubes are grown by anodic oxidation of Ti and are further annealed (350-750 degrees C). Besides the morphological and compositional changes due to annealing, the corrosion resistance and antibacterial activity are significantly improved. Namely, antibacterial activity of 650 degrees C and 750 degrees C annealed nanotubes shows the best results for Staphylococcus aureus and Pseudomonas aeruginosa, with 40% and 80% increase in the growth inhibition index, respectively. Furthermore, such nanostructures are non-haemolytic and present enhanced haemocompatibility compared to amorphous or lower-temperature annealed nanotubes. (C) 2015 Elsevier Ltd. All rights reserved.
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