【摘要】 目的利用超声分散法制备紫杉醇固体脂质纳米粒,并考察其稳定性。方法以稳定性、Zeta电位、粒径、包封率为考察指标筛选制备工艺,对超声时间、超声功率、脂质材料和助乳化剂的用量做了详细的考察。结果通过单因素及正交试验确定最佳处方为:脂质骨架单硬脂酸甘油酯(100/150mg)、乳化剂豆磷脂(100mg)、助乳化剂Pluronic F68-聚山梨酯80(2∶1),在(75±5)℃下乳化,之后以功率300W进行超声,时间为20min。结论本实验成功地将紫杉醇装载进固体脂质纳米粒中,纳米粒在胶体分散液中分散均匀,稳定性良好。此制备工艺安全、可靠,有很大的应用前景。更多还原

【Abstract】 Objective The paclitaxel loaded solid lipid nanoparticles (PTX-SLNs) were prepared by an ultrasonic-dispersion emulsification technique. The stability of PTX-SLNs was investigated in this study. Methods The technology was preferenced by stability, Zeta potential, particle diameter, and entrapment efficiency as indexes. The doses of lipid materials and coemulsifier, the ultrasonic time, and the ultrasonic power were investigated in detail. Results The optimum prescriptions were definited by one-factor and orthogonal test. The adjuvant: glyceryl monostearate (100/150 mg), Fabaceous Lecithin (100 mg), coemulsifier Pluronic F68∶Tween 80 (2∶1). The samples were sonicated with an energy output of 300 W in 20 min after emulsified at (75±5) ℃. Conclusion The PTX-SLNs are successfully prepared and PTX-SLNs with high stability are fairly dispersed in colloidal solution. This technology has a nice prospect with safety and reliability.更多还原