Objective: To study the release of ciprofloxacin polylactic acid microspheres in vitro.
目的：考察环丙沙星聚乳酸微球的体外释药性能。
OBJECTIVE To study the preparation process, assay and in vitro drug release of adriamycin polylactic acid microspheres.
目的：对阿霉素聚乳酸微球的制备工艺、含量测定及体外释药特性进行初步研究。
Aim To discover the effect of molecular weight of polylactic acid on the shape, drug content and drug distribution state of rifampicin polylactic acid microspheres.
目的考察聚乳酸相对分子量对利福平聚乳酸微球形态、载药量及微球中药物分布状态的影响。
Polylactic acid microspheres containing 5-fluorouracil were prepared by five different methods, and studied with the optical microscope. The drug contents in microspheres were determined.
采用五种不同方法制备5-氟尿嘧啶聚乳酸微囊，并对其外观性质及药物含量等进行了比较。
Conclusion: The fluorouracil release from microspheres with polylactic acid as carriers was controlled by drug diffusion and polymeric erosion.
结论：氟尿嘧啶微球体外释药以药物扩散和材料降解为主。
Conclusion: The fluorouracil release from microspheres with polylactic acid as carriers was controlled by drug diffusion and polymeric erosion.
结论：氟尿嘧啶微球体外释药以药物扩散和材料降解为主。
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