Development of titanium oxide layer containing nanocrystalline zirconia particles with tetragonal structure: Structural and biological characteristics
- Title
- Development of titanium oxide layer containing nanocrystalline zirconia particles with tetragonal structure: Structural and biological characteristics
- Author
- 신동혁
- Keywords
- Titanium; Plasma electrolytic oxidation; Tetragonal zirconia; Adhesion; Osteoblast; PLASMA ELECTROLYTIC OXIDATION; COMMERCIALLY PURE TITANIUM; APATITE-FORMING ABILITY; MAGNESIUM ALLOY; SURFACE-PROPERTIES; FILMS; COATINGS; BIOACTIVITY; IMPLANTS; HYDROXYAPATITE
- Issue Date
- 2015-07
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- COLLOIDS AND SURFACES B-BIOINTERFACES, v. 131, Page. 47-53
- Abstract
- This study investigated the microstructural, mechanical and biological properties of oxide layers containing tetragonal zirconia (t-ZrO2) particles on pure titanium produced by plasma electrolytic oxidation (PEO) process. For this purpose, PEO processes were carried out at an AC current density of 200 mA/cm(2) for 180s in potassium pyrophosphate (K4P2O7) electrolytes with and without t-ZrO2 powder. Structural investigations using transmission electron microscopy exhibited that the present nanocrystalline oxide layer evidenced the successful incorporation of a myriad of t-ZrO2 particles working as an intermediate medium to reinforce the adhesion strength between the substrate and oxide layer. Regarding biomimetic apatite formation, the t-ZrO2 particles uniformly spread were of considerable importance in triggering the nucleation and growth of biomimetic apatite on the surface of the oxide layer immersed in a simulated body fluid solution. The growth and proliferation rates of the osteoblasts (MC3T3-E1) cultured on the oxide layer with t-ZrO2 particles were higher than that without t-ZrO2 particles due to the higher roughness providing the better sites for the filopodia extension and interlocking. (C) 2015 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0927776515001903?via%3Dihubhttp://hdl.handle.net/20.500.11754/36941
- ISSN
- 0927-7765; 1873-4367
- DOI
- 10.1016/j.colsurfb.2015.03.047
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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