화학공학소재연구정보센터
학회 한국재료학회
학술대회 2012년 봄 (05/17 ~ 05/18, 무주덕유산리조트)
권호 18권 1호
발표분야 D. 바이오재료(Biomaterials)
제목 A study on improvement of bioactivity of CaO–Na2O–SiO2–P2O5 glasses for applications for bone substitute
초록 The compositional dependences of bioactivity, thermal properties, atomic structure, and surface morphology have been investigated in the CaO–Na2O–SiO2–P2O5 system; this system is known as a bioglass. 45S5 Bioglass® is known to be a general and highly bioactive material. However, the bioactivity of this glassy material is expected to be improved by modifying the alkali-metal composition. Thermal properties, density, and molar volume were measured to investigate the structural packing. FT-IR spectra and X-ray diffraction were used to confirm the structures of these glasses. The morphology was examined using scanning electron microscopy, and the formation of a Ca–P layer was studied using an energy-dispersive system. This study shows that the tendency to form a calcium phosphate layer is increased with the substitution of Na2O for K2O.
저자 김태희, 구동건, 김종환, 최원규, 한경석, 기경범, 류봉기
소속 부산대
키워드 bioactivity; glass-ceramic materials; In vitro test
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