Synthesis and Characterization of Silicon-Doped Hydroxyapatite
نویسندگان
چکیده
Silicon was doped to hydroxyapatite by hydrothermal techniques for higher biocompatibility. Products contained tetra-ethyl-orthosilicate (TEOS) as a silicon source in the range of 0 to 15mass%. In order to evaluate bioactivity of silicon-doped hydroxyapatite, the samples were soaked in simulated body fluid (SBF). Silicon doped samples showed faster apatite forming ability than the undoped samples. The samples were examined by transmission electron microscopy (TEM), X-ray diffraction patterns (XRD), Fourier transform infrared spectroscopy (FTIR) and X-ray absorption fine structure (XAFS). There results indicated that SiO4 4 ion substituted PO4 3 ion site in apatite structures. And it was found that appropriate TEOS doping ratio was 10mass% for superior biocompatibility due to amorphous SiO2 segregation in the 15mass% TEOS doped samples. [doi:10.2320/matertrans.MC200808]
منابع مشابه
Silicon-substituted hydroxyapatite nanocomposite: Synthesis, characterization and in vitro bioactivity study in Human Serum Albumin
Nano hydroxyapatite and Silicon-substituted hydroxyapatite nanocomposites with various amount of Si contents (0, 2, 4 and 6 mole % as named as HS0, HS2, HS4 and HS6) were prepared via in situ hybridization method and were analyzed by XRD, FTIR, SEM and AFM techniques. Size distribution of the products demonstrated that hydroxyapatite particles size was between 2 and 53.5 nm with further mean si...
متن کاملHigh Biological performance of Silicon Substituted Nano Hydroxyapatite Synthesized in Simulated Body Fluid at 37°C
In this work, we report high biological performance of silicon substituted nano hydroxyapatite (nHA) prepared by immersion of calcium phosphate and sodium silicate as precursors in Simulated Body Fluid (SBF) solution for 24, 36, 48 and 72 hrs at 37°C. Characterization and chemical analysis of the synthesized powders were performed by Fourier transform, infrared spectroscopy (FT-IR), X-ray powde...
متن کاملHigh Biological performance of Silicon Substituted Nano Hydroxyapatite Synthesized in Simulated Body Fluid at 37°C
In this work, we report high biological performance of silicon substituted nano hydroxyapatite (nHA) prepared by immersion of calcium phosphate and sodium silicate as precursors in Simulated Body Fluid (SBF) solution for 24, 36, 48 and 72 hrs at 37°C. Characterization and chemical analysis of the synthesized powders were performed by Fourier transform, infrared spectroscopy (FT-IR), X-ray powde...
متن کاملSynthesis and Characterization of Hydroxyapatite Nanocrystals via Chemical Precipitation Technique
In this study, hydroxyapatite (HA) nanocrystals have been synthesized via chemical precipitation technique. Diammonium hydrogen phosphate and calcium nitrate 4-hydrate were used as starting materials and sodium hydroxide solution was used as the agent for pH adjustment. The powder sample was evaluated by techniques such as scanning electron microscope, transmission electron microscope, Fou...
متن کاملHydroxyapatite - starch nano biocomposites synthesis and characterization
Bone like hydroxyapatite (nHAp) was synthesized via an in situ biomimetic process in presence of wheat starch. The effect of polymer concentration alteration on the final structure of nHAp was investigated. Formation of the nHAp at room temperature was confirmed by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). Size and morphology of the nHAp samples were character...
متن کامل