Fabrication of TiO < inf> 2 nanotube arrays using 1,2-propanediol electrolyte for application in biomedical implants

Document Type

Conference Proceeding

Publication Date

1-24-2014

Department

Department of Mechanical Engineering-Engineering Mechanics

Abstract

Controlled TiO2 nanotube fabrication is crucial due to its potential applicability as surface treatment for biomedical implants. This paper examines anodization of titanium using a solution of de-ionized water, ammonium fluoride and 1, 2-propanediol (Propylene Glycol) since lower conductivity and higher viscosity of 1, 2-Propanediol, compared to similar ethylene glycol electrolyte results in nanotubes of greater diameter, smaller length and stronger adherence to the substrate, making them more suited for controlled drug release and providing better adhesion to the bulk surface. The effect of water concentration and anodization voltage on the morphology and dimensions of nanotubes was studied. Through characterization of nanotubes a suitable setting was identified within a working range at 40% water, 60% 1, 2-Propanediol mixture (by volume) at 20V providing nanotubes of 120nm diameter and 0.5μm length. Also, Tubes with diameter up to 1μm were observed. Further tests are to be performed for cell viability testing and adhesion testing to establish the characteristics of this technique of nanotube fabrication.

Publication Title

TMS Annual Meeting

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