Journal
MATERIALS LETTERS
Volume 176, Issue -, Pages 74-77Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2016.04.076
Keywords
Biomaterials; Functional; XPS; Microstructures
Funding
- Central South University Postdoctoral Foundation [502042052]
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The residue of sand particles is an inevitable problem in sandblast and acid-etching (SLA) process. Reactive oxygen species (ROS) can significantly inhibit bacterial reproduction around the implants. Based on these two points, a sandblast-free double etching technique was proposed to obtain an antimicrobial titanium surface with hierarchical structures without inducing residual particles. Holes of 10-20 um in diameter and pits of hundreds of nanometers were observed on etched surfaces by scanning electron microscopy (SEM). Meanwhile, ROS were also detected on etched surfaces by means of X-ray photoelectron spectroscopy (XPS). Namely that surfaces with hierarchical structures and antimicrobial performance without inducing residual particles were obtained. This novel double etched surface may be promising to dental implants. (C) 2016 Elsevier B.V. All rights reserved.
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