Femtosecond laser surface texturing of titanium as a method to reduce the adhesion of Staphylococcus aureus and biofilm formation

Femtosecond laser surface texturing of titanium as a method to reduce the adhesion of... Article history: The aim of the present work was to investigate the possibility of using femtosecond laser surface textur- Received 30 July 2015 ing as a method to reduce the colonization of Grade 2 Titanium alloy surfaces by Staphylococcus aureus Received in revised form 13 October 2015 and the subsequent formation of biofilm. The laser treatments were carried out with a Yb:KYW chirped- Accepted 16 October 2015 pulse-regenerative amplification laser system with a central wavelength of 1030 nm and a pulse duration Available online 9 November 2015 of 500 fs. Two types of surface textures, consisting of laser-induced periodic surface structures (LIPSS) and nanopillars, were produced. The topography, chemical composition and phase constitution of these Keywords: surfaces were investigated by atomic force microscopy, scanning electron microscopy, X-ray photoelec- Femtosecond lasers tron spectroscopy, micro-Raman spectroscopy, and X-ray diffraction. Surface wettability was assessed by Laser surface texturing the sessile drop method using water and diiodomethane as testing liquids. The response of S. aureus put Dental and orthopedic implants into contact with the laser treated surfaces in controlled conditions was investigated by epifluorescence Wettability microscopy and scanning electron microscopy 48 h after cell seeding. The results achieved show that the Bacteria adhesion http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Femtosecond laser surface texturing of titanium as a method to reduce the adhesion of Staphylococcus aureus and biofilm formation

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Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2015.10.102
Publisher site
See Article on Publisher Site

Abstract

Article history: The aim of the present work was to investigate the possibility of using femtosecond laser surface textur- Received 30 July 2015 ing as a method to reduce the colonization of Grade 2 Titanium alloy surfaces by Staphylococcus aureus Received in revised form 13 October 2015 and the subsequent formation of biofilm. The laser treatments were carried out with a Yb:KYW chirped- Accepted 16 October 2015 pulse-regenerative amplification laser system with a central wavelength of 1030 nm and a pulse duration Available online 9 November 2015 of 500 fs. Two types of surface textures, consisting of laser-induced periodic surface structures (LIPSS) and nanopillars, were produced. The topography, chemical composition and phase constitution of these Keywords: surfaces were investigated by atomic force microscopy, scanning electron microscopy, X-ray photoelec- Femtosecond lasers tron spectroscopy, micro-Raman spectroscopy, and X-ray diffraction. Surface wettability was assessed by Laser surface texturing the sessile drop method using water and diiodomethane as testing liquids. The response of S. aureus put Dental and orthopedic implants into contact with the laser treated surfaces in controlled conditions was investigated by epifluorescence Wettability microscopy and scanning electron microscopy 48 h after cell seeding. The results achieved show that the Bacteria adhesion

Journal

Applied Surface ScienceElsevier

Published: Jan 1, 2016

References

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