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材料研究学报  2011, Vol. 25 Issue (4): 439-443    
  研究论文 本期目录 | 过刊浏览 |
多孔羟基磷灰石微球的药物缓释性能
徐为1, 姚爱华1,2, 艾凡荣1,3, 王德平1,2, 黄文旵1,2
1.同济大学材料科学与工程学院 上海 200092
2.先进土木工程材料教育部重点实验室 上海 200092
3.南昌大学机电工程学院 南昌 330031
Drug Release Behavior of Porous Hydroxyapatite Microspheres
XU Wei1,  YAO Aihua1,2,  AI Fanrong1,3,  WANG Deping1,2,  HUANG Wenhai1,2
1.School of Materials Science and Engineering, Tongji University, Shanghai 200092
2.Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 200092
3.College of Mechanical and Electrical Engineering, Nanchang University, Nanchang 330031
引用本文:

徐为 姚爱华 艾凡荣 王德平 黄文旵. 多孔羟基磷灰石微球的药物缓释性能[J]. 材料研究学报, 2011, 25(4): 439-443.
, , , , . Drug Release Behavior of Porous Hydroxyapatite Microspheres[J]. Chin J Mater Res, 2011, 25(4): 439-443.

全文: PDF(898 KB)  
摘要: 用锂钙硼(LCB)玻璃在磷酸盐溶液中的原位转化反应制备多孔羟基磷灰石(HA)微球, 表征微球的物相组成、孔结构和形貌, 以溶菌酶为药物模型研究了药物的缓释性能。结果表明, 所制备的HA微球具有较好的孔结构。当溶菌酶溶液的浓度较低时, HA微球将溶菌酶吸附在微球的外表面;当浓度较高时, 更多的溶菌酶扩散进入HA微球的微孔中, 使缓释效果明显改善。当溶菌酶溶液的初始浓度为1.0 mg/ml时, 载药HA微球的释药周期可达800 h以上。
关键词 无机非金属材料羟基磷灰石多孔微球溶菌酶药物缓释载体    
Abstract:Porous hydroxyapatite (HA) microspheres were prepared by a situ Li-Ca-B glass conversion process. The phase composition, pore structure and morphology were characterized by XRD, SEM and BET. The results show that the resultant microspheres possess good internal porous structure. The release behavior of lysozyme as a model drug was investigated in the present work. The results show that lysozyme molecules mainly are absorbed on the external surface of the porous HA when concentration of lysozyme is low. A large amount of lysozyme is loaded in the pores of the microspheres when high concentration of lysozyme is used, which effectively prolonged the drug release. The loading behavior was successfully observed in the 1.0 mg/ml lysozyme solution and the drug can still be released after 800 hours.
Key wordsinorganic non-metallic materials    hydroxyapatite    porous microsphere    lysozyme    drug controlled-release carrier
收稿日期: 2011-03-30     
ZTFLH: 

TB321

 
基金资助:

上海市科委``创新行动计划''基础研究重点08JC1419200和同济大学青年优秀人才培养行动计划资助项目。

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