fluorapatite and tricalcium-phosphate

fluorapatite has been researched along with tricalcium-phosphate* in 2 studies

Other Studies

2 other study(ies) available for fluorapatite and tricalcium-phosphate

Article	Year
Tricalcium phosphate-Fluorapatite as bone tissue engineering: Evaluation of bioactivity and biocompatibility. Materials science & engineering. C, Materials for biological applications, 2018, May-01, Volume: 86 Biocomposites consisting of β Tricalcium phosphate (β-TCP) with 26.52% Fluorapatite (Fap) were elaborated and characterized in order to evaluate it potential application in bone graft substitute. Bioactivity was determined with in vitro tests by immersion of samples in simulated fluid body for several periods of times. The SEM, EDS and Atomic Absorption Spectroscopy showed the deposition of apatite layer on the surface of samples showing a good bioactivity. However, after 6days of soaking, the dissolution rate of Ca Topics: Animals; Apatites; Biocompatible Materials; Bone and Bones; Bone Substitutes; Calcium Phosphates; Hydrogen-Ion Concentration; Microscopy, Electron, Scanning; Porosity; Prostheses and Implants; Rabbits; Spectrometry, X-Ray Emission; Tissue Engineering	2018
Effect of fluorapatite additive on densification and mechanical properties of tricalcium phosphate. Journal of the mechanical behavior of biomedical materials, 2010, Volume: 3, Issue:1 Tricalcium phosphate and synthesized fluorapatite powder were mixed in order to elaborate biphasic composites. The samples were characterized by X-ray diffraction, differential thermal analysis, infrared spectroscopy, scanning electron microscopy and by an analysis using (31)P nuclear magnetic resonance. The sintering of tricalcium phosphate with different percentages of fluorapatite (13.26 wt%; 19.9 wt%; 33.16 wt% and 40 wt%) indicates the evolution of the microstructure, densification and mechanical properties. The Brazilian test was used to measure the rupture strength of the sintered biphasic composites. The mechanical properties increase with the sintering temperature and with the addition of fluorapatite additive. The mechanical resistance of beta tricalcium phosphate-33.16 wt% fluorapatite composites reached its maximum value (13.7 MPa) at 1400 ( composite function)C, whereas the optimum densification was obtained at 1350 ( composite function)C (93.2%). Above 1400 ( composite function)C, the densification and mechanical properties were hindered by the tricalcium phosphate allotropic transformation and the formation of both intragranular porosity and cracks. The (31)P magic angle spinning nuclear magnetic resonance analysis of composites as sintered at various temperatures or with different percentages of fluorapatite reveals the presence of tetrahedral P sites. Topics: Apatites; Calcium Phosphates; Differential Thermal Analysis; Infrared Rays; Magnetic Resonance Spectroscopy; Mechanical Phenomena; Microscopy, Electron, Scanning; Phosphorus Isotopes; Spectrum Analysis; Temperature; X-Ray Diffraction	2010

Article

Year

Tricalcium phosphate-Fluorapatite as bone tissue engineering: Evaluation of bioactivity and biocompatibility.

Materials science & engineering. C, Materials for biological applications, 2018, May-01, Volume: 86

Biocomposites consisting of β Tricalcium phosphate (β-TCP) with 26.52% Fluorapatite (Fap) were elaborated and characterized in order to evaluate it potential application in bone graft substitute. Bioactivity was determined with in vitro tests by immersion of samples in simulated fluid body for several periods of times. The SEM, EDS and Atomic Absorption Spectroscopy showed the deposition of apatite layer on the surface of samples showing a good bioactivity. However, after 6days of soaking, the dissolution rate of Ca

Topics: Animals; Apatites; Biocompatible Materials; Bone and Bones; Bone Substitutes; Calcium Phosphates; Hydrogen-Ion Concentration; Microscopy, Electron, Scanning; Porosity; Prostheses and Implants; Rabbits; Spectrometry, X-Ray Emission; Tissue Engineering

2018

Effect of fluorapatite additive on densification and mechanical properties of tricalcium phosphate.

Journal of the mechanical behavior of biomedical materials, 2010, Volume: 3, Issue:1

Tricalcium phosphate and synthesized fluorapatite powder were mixed in order to elaborate biphasic composites. The samples were characterized by X-ray diffraction, differential thermal analysis, infrared spectroscopy, scanning electron microscopy and by an analysis using (31)P nuclear magnetic resonance. The sintering of tricalcium phosphate with different percentages of fluorapatite (13.26 wt%; 19.9 wt%; 33.16 wt% and 40 wt%) indicates the evolution of the microstructure, densification and mechanical properties. The Brazilian test was used to measure the rupture strength of the sintered biphasic composites. The mechanical properties increase with the sintering temperature and with the addition of fluorapatite additive. The mechanical resistance of beta tricalcium phosphate-33.16 wt% fluorapatite composites reached its maximum value (13.7 MPa) at 1400 ( composite function)C, whereas the optimum densification was obtained at 1350 ( composite function)C (93.2%). Above 1400 ( composite function)C, the densification and mechanical properties were hindered by the tricalcium phosphate allotropic transformation and the formation of both intragranular porosity and cracks. The (31)P magic angle spinning nuclear magnetic resonance analysis of composites as sintered at various temperatures or with different percentages of fluorapatite reveals the presence of tetrahedral P sites.

Topics: Apatites; Calcium Phosphates; Differential Thermal Analysis; Infrared Rays; Magnetic Resonance Spectroscopy; Mechanical Phenomena; Microscopy, Electron, Scanning; Phosphorus Isotopes; Spectrum Analysis; Temperature; X-Ray Diffraction

2010