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Meeting Materials Science & Technology 2020
Symposium Surface Treatments and Properties of Titanium and Titanium Alloys: A Forum on New Strategies and Processes for Biomedical and Industrial Advanced Applications
Presentation Title Controlled Surface Topography of Titanium-based Implants via Use of Gas/Solid Reactions
Author(s) Naotaka Ogura, Pavan Kumar Srivas, Kenneth H. Sandhage
On-Site Speaker (Planned) Naotaka Ogura
Abstract Scope The surface topography of a titanium-based biomedical implant can have a significant influence on osseointegration. Conventional methods for controlling the surface roughness, from the microscale down to the nanoscale, of such implants have involved line-of-sight methods that are limited to external surfaces. Given the advent of 3-D printing of macroporous titanium-based implants, new methods are needed for tailoring the topography of internal surfaces of such implants. We will present a novel, non-line-of-sight method for achieving controlled surface roughness of internal and external surfaces down to the nanoscale via the use of sequential gas/solid reactions. Titanium or titanium alloy surfaces are first exposed to a thermal oxidation treatment to generate a thin continuous oxide scale of tailorable thickness. This oxide scale is then allowed to react further to generate a composite scale. Partial selective dissolution then yields thin, uniformly nanoporous/nanorough surfaces.
Proceedings Inclusion? Planned: The journal 'Materials' is planning a special issue with papers from this symposium

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Comparative Study of Protein Adsorption on Different Bio-surfaces for Osteointegration
Controlled Surface Topography of Titanium-based Implants via Use of Gas/Solid Reactions
Introductory Comments: Surface Treatments and Properties of Titanium and Titanium Alloys:
Sustainable Antibacterial Activity of Iodine-loaded Bioactive Titanium Metal by Chemical and Heat Treatment

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