Fine Patterning of Titanium Oxide Film Loaded with Hydroxyapatite Using Photopatterning and Anodic Oxidation

Abstract

The patterned titania gel film fabricated by UV-irradiation through a mask and leaching was anodized by direct current electrolysis or pulse electrolysis. The patterning prepared through the two electrolyses was quite contrasted in that masking part and unmasking part was anodized in direct electrolysis and in pulse electrolysis, respectively. In addition, the oxide film thickness obtained using pulse electrolysis was thinner than that using direct current electrolysis. Thus, a combination of the photopatterning and pulse electrolysis made it possible to fabricate hydroxyapatite (HAp)-fixed and thinner titanium oxide film with fine pattern on titanium plate.