DOI: 10.3724/SP.J.1249.2017.03313

Journal of Shenzhen University Science and Engineering (深圳大学学报理工版) 2017/34:3 PP.313-318

Thermal stability and biotoxicity of PES-HA biocomposites

Polyethersulfone-hydroxyapatite (PES-HA) biocomposites were prepared by dissolving ultrasonic method. Infrared spectroscopy shows that the composites are mainly composed by physical bonding. The thermo gravimetric analysis indicates that the thermal stability of the composites increases with the increase of HA content and the thermal decomposition reaction order is about 1. Cytotoxicity test shows that the toxicity level of the material is gradeⅠ, and the composites have no toxicity to MG-63 cells. The addition of HA into PES results in a relative increase in the growth rate of cells for the composites, thus improving the cell biocompatibility. The cells grow well in the material extract, the adherent cells are spindle or polygonal, with strong refraction and obvious cell proliferation.

Key words:biological materials,composite materials,polyether sulfone,hydroxyapatite,thermal stability,decomposition kinetics,cytotoxicity

ReleaseDate:2017-06-16 14:08:45

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