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投稿时间:2008-08-15
投稿时间:2008-08-15
中文摘要: 以生物可降解聚羟基丁酸酯和羟基戊酸酯的共聚物(PHBV)、乙交酯和丙交酯的无规共聚物(PLGA)两种高分子作为壁材,采用复乳溶剂挥发法,制备了包裹硫酸庆大霉素(GS)的载药微球。在扫描电镜下观察到所得微球表面呈多孔状,为球形或椭圆形,粒径在20~80 μm。分析结果表明,包封率在60%以上,在体外16~20 d内药物全部释放,90 d微球体外降解50%左右。
Abstract:Biodegradable poly(hydroxybutyrate-hydroxyvalerate)-poly(lactide-co-glycolide) (PHBV-PLGA) microspheres with gentamicin-loading were prepared and characterized by solid-oil-oil-water method. The diameter of the microspheres with spherical or ellipsoidal shape ranges in 20-80 μm and the encapsulation efficiency of gentamicin sulfate is more than 60%. The cumulative rate of drug-release reaches 100% in 16-20 d. In addition, the degradation properties are investigated. The cumulative drug release is about 50% in 90 d in phosphate buffer solution.
keywords: PHBV PLGA gentamicin sulfate drug release microsphere
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基金项目:广东省自然科学基金项目(04205786);国家科技支撑计划项目(2006BAI16B03)
作者 | 单位 | |
谭红香 | 华南理工大学材料学院特种功能材料教育部重点实验室 | tanhongxiang666@163.com |
叶建东 | 华南理工大学材料学院特种功能材料教育部重点实验室 | |
柯渔 | 华南理工大学材料学院特种功能材料教育部重点实验室 |
Author Name | Affiliation | |
tanhongxiang666@163.com | ||
引用本文:
谭红香,叶建东,柯渔.以PHBV-PLGA为载体的硫酸庆大霉素缓释微球[J].功能高分子学报,2009,(1):12-16.
.Poly(Hydroxybutyrate-Hydroxyvalerate)-Poly(Lactide-co-Glycolide)Sustained Release Microspheres Entrapping Gentamicin Sulfate[J].Journal of Functional Polymers,2009,(1):12-16.
谭红香,叶建东,柯渔.以PHBV-PLGA为载体的硫酸庆大霉素缓释微球[J].功能高分子学报,2009,(1):12-16.
.Poly(Hydroxybutyrate-Hydroxyvalerate)-Poly(Lactide-co-Glycolide)Sustained Release Microspheres Entrapping Gentamicin Sulfate[J].Journal of Functional Polymers,2009,(1):12-16.