摘要
采用硅烷偶联剂对生物活性玻璃(BG)进行表面修饰以改善其与高分子的亲和性。通过溶胶凝胶法制得BG,将氨丙基三乙氧基硅烷(APTES)键连到BG表面,采用FTIR、TG、激光粒度仪等对修饰前后的BG进行表征,并通过细胞实验对材料的细胞相容性进行初步研究。结果表明,修饰后BG的FTIR图谱上出现归属于C—H的伸缩振动吸收峰,在DTG曲线上观察到明显的有机基团燃烧失重峰,表明APTES接枝到生物玻璃表面;而MC-3T3细胞增殖测定和SEM结果显示经表面修饰后的BG更有利于细胞的生长增殖。
The silane coupling agent was used to modify the inorganic bioactive glass（BG） surface aiming at improving affinity with polymer.BG was prepared by sol-gel method,then 3-aminopropyltriethoxysilane（APTES） was grafted onto BG surface.FTIR,TG and laser particle size analyzer were adopted to characterize BG before and after modification,and the cell biocompatibility of the material was studied preliminarily through cell culture.The results show that stretching vibration attributed to saturated C—H appears in FTIR spectrum of modified BG,and remarkable mass loss resulted from combustion of organic group is observed in DTG curve,which suggest that APTES has been bonded onto BG surface.The MC-3T3 cell proliferation measurement and SEM photos show that the modified BG is in favor of the cell growth and proliferation compared with unmodified BG.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2011年第1期114-118,共5页
Acta Materiae Compositae Sinica
基金
国家自然科学基金(50472054)
国家973项目(2005CB623902)
广东省自然科学基金(04300428)
中国博士后科学基金(2003033035)
关键词
生物活性玻璃
硅烷偶联剂
修饰
表面
细胞相容性
bioactive glass
silane coupling agent
modification
surface
cell biocompatibility
