羟基磷灰石/壳聚糖-柚皮苷缓释材料的制备及性能初探

被引:8
作者
梁卫寰 [1 ]
谭竹钧 [1 ]
区硕俊 [2 ]
赵宏霞 [1 ]
机构
[1] 广东工业大学轻工化工学院
[2] 广州市质量监督检测研究院
关键词
缓释材料; 羟基磷灰石; 壳聚糖; 柚皮苷; 力学强度; 吸水率; 降解;
D O I
暂无
中图分类号
R318.08 [生物材料学]; TB383.4 [];
学科分类号
100103 [病原生物学];
摘要
柚皮苷是中药骨碎补的主要活性成分,有促进成骨和骨组织新陈代谢的功能,目前载柚皮苷的羟基磷灰石/壳聚糖人工骨缓释材料未见报道。制备了壳聚糖(chitosan,CS)质量分数为10%,20%和30%的壳聚糖/羟基磷灰石-柚皮苷(chitosan/hydroxyapatite-naringin,CS/HA-N)缓释材料,并以SEM、IR和XRD对材料进行了表征,同时研究了材料的机械性能、体外降解行为以及药物缓释行为。IR和XRD结果表明,缓释材料的无机相为部分碳酸化的低结晶度羟基磷灰石,与天然骨相似。SEM结果显示材料中羟基磷灰石(hydroxyapatite-N,HA)呈片状结晶。机械性能测试结果表明,缓释材料具有良好的力学性能,CS含量为10%,20%和30%的CS/HA-N抗压强度分别为17.45±3.42,16.86±3.7和19.34±4.69 MPa。随着缓释材料中CS含量的增大,材料吸水率随之增大。体外缓释及体外降解行为研究结果表明,CS/HA对柚皮苷有良好的缓释效果,其药物释放速率以及降解速率随壳聚糖含量的增大而增大。CS/HA-N作为载药人工骨替代材料具有良好的应用前景。
引用
收藏
页码:19131 / 19135
页数:5
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