Assessment of characteristics and cytotoxic effects of 316L stainless steel coated with a new titanium oxide nano-structure coating method
Source abstract
Abstract
In order to fabricate the TiO2 nano-structure coating on the Ti-free stainless steel with good adhesion, commercially obtained 316L stainless steel (316L SS) plates were chemically treated by KOH aqueous solution including TiH2 powder at 60C for 3 days in an oil bath shaker, and subsequently heated up to 550-800C under the air atmosphere. The crystal structure, color, adhesive strength and cytotoxic effects of coating were investigated. Fiber-like hydrogen titanate nano-structures were formed on the 316L SS surface and made a fine network. X-ray diffraction (XRD) patterns showed that hydrogen titanate phase converted to anatase and rutile after heat treatment above 550C. The heat treated sample at 800C for 1 h showed the highest adhesive strength and the lowest cytotoxicity. The alkali treatment method in this study is expected to be used on the other Ti-free metals with further research.
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Research context
OpenAlex topics: Bone Tissue Engineering Materials · TiO2 Photocatalysis and Solar Cells · Nanoparticles: synthesis and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University
Department of Dental and Biomedical Materials Science, Graduate School of Biomedical Sciences, Nagasaki University
References (27)
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