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时间:2020-04-27
《主动载药法制备三氧化二砷脂质体-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、·648·中草焉ChineseTraditionalandHerbalDrugs第45卷第5期2014年3月主动载药法制备三氧化二砷脂质体王晓瑜一,马满玲1.武警后勤学院附属医院药剂科,天津3000612.哈尔滨医科大学附属第一医院药学部,黑龙江哈尔滨150001摘要:目的采用主动载药法制备三氧化二砷(As2O3)脂质体,并优化处方组成,考察主动载药法制备As2O3脂质体的可行性。方法采用正交设计法筛选处方,主动载药法制备As2O3脂质体;用葡聚糖凝胶G.50柱分离脂质体和游离药物,用原子荧光分光光度法测
2、定包封率;用电镜观察脂质体的外观形态,并用激光粒径分析仪测定脂质体的粒径和Zeta电位;并进一步考察其优势。结果所得脂质体的包封率为(72.3±0.8)%;形态为粒径均匀的球形或类球形,粒径为(193±12)nm,Zeta电位为(36.1±3.0)mV;脂质体具有良好的安全性与较好的稳定性。结论优选得到的As203脂质体处方和制备工艺合理,并且所制备的As0脂质体具有良好的安全性。关键词:三氧化二砷;脂质体:正交设计;主动载药法;包封率中图分类号:R283.6文献标志码:A文章编号:0253—2670(2
3、014)05—0648—04DoI:10.7501/j.issn.0253—2670.2014.05.010Preparationofarsenictrioxideliposomebyactivedrug—loadingmethodWANGXiao.yu一.MAMan—ling1.DepartmentofPharmacy,theAfiliatedHospital,LogisticCollegeofChinesePeople’ArmedPolice,Tianjin300061,China2.Depa~men
4、tofPharmacy,theFirstAfiliatedHospitalofHarbinMedicalUniversity,Harbin150001,ChinaAbstract:ObjectiveTopreparearsenictrioxide(As203)liposome,tooptimizetheformulationofAs203liposomes,andtostudythefeasibilityofAs2O3liposomespreparedbytheactivedrug—loading.Met
5、hodsLiposomeswerepreparedbytheactivedrug—loadingmethod.Ano~hogonaltestwasutilizedtooptimizetheformulationandpreparationofAs203liposomes.TheunencapsulatedAs203andliposomeswereseparatedbySephadexgelG一50column,theentrapmenteficiency(EE)wasdetectedbyatomicflu
6、orescencespectrophotometry.ThemorphologicalexaminationofAs203liposomeswasperformedusingtransmissionelectronmicroscopy.TheparticlesizeandZetapotentialoftheliposomesweremeasured.TheadvantageofAs203liposomesmadebyactivedrug—loadingmethodwasinvestigated.Resul
7、tsTheEEoftheliposomeswas(72.34-0.81%,themorphologyofliposomeswassphericalorellipsoidalshapewithuniformparticlesize,themeanparticalsizewas(193士12)nm,andZetapotentialwas(36.1士3.0)mV.LiposomeshavegoodsafetyandbeRerstability.ConclusionTheselectedformulationan
8、dpreparationtechniqueofAs203liposomescouldberationalandstable,andthepreparedAs203liposomeshavegoodsafety.Keywords:arsenictrioxide;liposome;orthogonaldesign;activedrug—loadingmethod;entrapmenteficiency三氧化二砷(As2O3)为我国
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