UV-INDUCED PRECIPITATION OF BONE-LIKE APATITE ON ANODISED TITANIUM IN SIMULATED BODY FLUID
Published In: 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): H.Z. ABDULLAH , M.I. IDRIS , T.C. LEE
Abstract: Anodic oxidation is an electrochemical method to deposit ceramic coatings on the metals substrate. It has been widely used to modify the surface properties of titanium in order to improve the bioactivity. Recently, photocatalytic activity of biomaterials has attracted great deal of attention. This study aims to investigate the effect of UV irradiation on the precipitation of bone-like apatite in simulated body fluid (SBF). Specifically, the high purity titanium foils were anodised at various voltage (50V-350V) in mixture of β-glycerophosphate disodium salt pentahydrate (β-GP) and calcium acetate monohydrate (CA) for 10 minutes. Next, the anodised titanium foils were soaking in SBF for 7 days by illuminating with UVC light (peak wavelength of 254 nm). Field emission scanning electron microscopy (FESEM) and glancing angle X-ray diffractometer (GAXRD) were used to characterise the surface morphology and crystallinity of anodised titanium before and after soaking in SBF. After 7 days, bone
- Publication Date: 27-May-2015
- DOI: 10.15224/978-1-63248-062-0-32
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SURFACE CHARACTERISATION OF BIOACTIVE TITANIUM FORMED VIA ANODIC OXIDATION
Published In: 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): H.Z. ABDULLAH , M.I. IDRIS , N. ANJANG , Z. MALIK
Abstract: Anodic oxidation (AO) is one of surface modification method that able to produce specific topographies and enhance bone growth of the titanium (Ti). Modifying the oxide layer of titanium from smooth (bioinert) to rough/porous (bioactive) surface makes this material able to be used as artificial implant for biomedical application. In this study, the effect of AO on the characteristics of titanium in different electrolytes is evaluated. Anodised Ti was prepared using AO method in two different electrolytes (acetic and sulphuric acid) with same concentration (0.3 M). The applied voltage were varied range 50 – 200 V, with constant 75 mA.cm-2 of current density for 10 min of oxidation process at room temperature. The anodised titanium films were characterised using X-ray Diffractometer (XRD), field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM). From this study, it is proven that the strong acid (sulphuric acid) is more effective to be used as electrolyte in
- Publication Date: 27-May-2015
- DOI: 10.15224/978-1-63248-062-0-33
- Views: 0
- Downloads: 0