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INFLUENCE OF SETTING LIQUID COMPOSITION ON PROPERTIES OF APATITE-WOLLASTONITE BIOGLASS BONE CEMENT

XU Long-quan

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Abstract

In order to further improve the properties of apatite-wollastonite(AW) bioglass bone cement,setting liquid of citric acid/phosphate with different compositions was used to synthesize AW glass bone cement(AW-GBC) by blending with solgel-derived AW bioglass powder.The crystal phase composition and microstructure were investigated using an X-ray diffraction(XRD) and scanning electronic microscope(SEM).The influences of setting liquid composition on the setting time,bioactivity and mechanical properties of AW-GBC were investigated.The results show that the AW glass bone cement with citric acid/K2HPO4/KH2PO4 multiplex setting liquid attain higher compressive strength and induce more HA crystals after immersion in the simulated body fluid(SBF) for 7 d,which indicates that the multiplex setting liquid is more favorable for obtaining AW bioglass bone cement with higher bioactivity and mechanical properties.

About this research paper

What this paper is about

In order to further improve the properties of apatite-wollastonite(AW) bioglass bone cement,setting liquid of citric acid/phosphate with different compositions was used to synthesize AW glass bone cement(AW-GBC) by blending with solgel-derived AW bioglass powder.The crystal phase composition and microstructure were investigated using an X-ray diffraction(XRD) and scanning electronic microscope(SEM).The influences of setting liquid composition on the setting time,bioactivity and mechanical properties of AW-GBC were investigated.The results show that the AW glass bone cement with citric acid/K2HPO4/KH2PO4 multiplex setting liquid attain higher compressive strength and induce more HA crystals after immersion in the simulated body fluid(SBF) for 7 d,which indicates that the multiplex setting liquid is more favorable for obtaining AW bioglass bone cement with higher bioactivity and mechanical properties.

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Available abstract

In order to further improve the properties of apatite-wollastonite(AW) bioglass bone cement,setting liquid of citric acid/phosphate with different compositions was used to synthesize AW glass bone cement(AW-GBC) by blending with solgel-derived AW bioglass powder.The crystal phase composition and microstructure were investigated using an X-ray diffraction(XRD) and scanning electronic microscope(SEM).The influences of setting liquid composition on the setting time,bioactivity and mechanical properties of AW-GBC were investigated.The results show that the AW glass bone cement with citric acid/K2HPO4/KH2PO4 multiplex setting liquid attain higher compressive strength and induce more HA crystals after immersion in the simulated body fluid(SBF) for 7 d,which indicates that the multiplex setting liquid is more favorable for obtaining AW bioglass bone cement with higher bioactivity and mechanical properties.

Key concepts: Apatite, Wollastonite, Materials science, Simulated body fluid, Cement, Bone cement, Compressive strength, Citric acid

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INFLUENCE OF SETTING LIQUID COMPOSITION ON PROPERTIES OF APATITE-WOLLASTONITE BIOGLASS BONE CEMENT — Research Paper | ScholarLens