Premium
Impact of Femtosecond Laser Treatment Accompanied with Anodization of Titanium Alloy on Fibroblast Cell Growth
Author(s) -
Lone Shaukat Ali,
Muck Martina,
Fosodeder Peter,
Mardare Cezarina Cela,
Florian Camilo,
Weth Agnes,
Krüger Jörg,
Steinwender Clemens,
Baumgartner Werner,
Bonse Jörn,
Heitz Johannes,
Hassel Achim Walter
Publication year - 2020
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201900838
Subject(s) - materials science , anodizing , x ray photoelectron spectroscopy , titanium , titanium alloy , microstructure , femtosecond , alloy , metallurgy , laser , analytical chemistry (journal) , chemical engineering , aluminium , optics , chemistry , physics , chromatography , engineering
Herein, Ti6Al4V alloy is surface modified by femtosecond laser ablation. The microstructure image obtained by secondary electron microscopy reveals a combination of micrometer spikes or cones superimposed by nanoripples (laser‐induced periodic surface structures). To make the surface hydrophilic, anodization is performed resulting in further smoothness of microstructure and a final thickness of 35 ± 4 nm is estimated for oxide produced after anodization at 10 V (scan rate = 0.1 V s −1 ) versus standard hydrogen electrode. The obtained electrochemically active surface area (ECSA) is approximately 8 times larger compared with flat mirror polished Ti6Al4V surface. Combined chemical analysis by Pourbaix diagram and X‐ray photoelectron spectroscopy (XPS) analyses reveal that titanium and aluminum are passivating into TiO 2 and Al 2 O 3 , but the dissolution of aluminum in the form of solvated ion is inevitable. Finally, cell seeding experiments on anodized and laser‐treated titanium alloy samples show that the growth of murine fibroblast cells is significantly suppressed due to unique surface texture of the laser‐treated and anodized titanium alloy sample.