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1、第20卷第15期中國實驗方劑學(xué)雜志Vo1.20.No.152014年8月ChineseJournalofExperimentalTraditionalMedicalFormulaeAug.,2014黃芩苷殼聚糖納米粒的制備及表征昊瑛。,李陽,李鳳琴,楊華生,王芳(1.江西省腫瘤醫(yī)院,南昌330029;2.江西中醫(yī)藥大學(xué),南昌330004;3.湘雅萍礦合作醫(yī)院,江西新余338000)[摘要]目的:制備和評價黃芩苷殼聚糖納米粒(BS—CS—NPs)。方法:采用離子交聯(lián)法制備BS—CS—NPs,以包封率
2、和粒徑為評價指標(biāo),通過單因素試驗考察攪拌時間、轉(zhuǎn)速、殼聚糖(cs)溶液pH、CS一黃芩苷(BC)投料比、cs一多聚磷酸鈉(TPP)質(zhì)量濃度比對制備工藝的影響;以載藥量和包封率的綜合評分為指標(biāo),通過正交試驗考察CS—BC投料質(zhì)量比、CS—TPP質(zhì)量濃度比及cs溶液pH對制備_f=藝的影響;采用電子顯微鏡觀察BC—CS—NPs的形態(tài),激光粒度分析儀測定粒徑大小和Zeta電位,HPIC檢測包封率和載藥量,檢測波長280nm,流動相甲醇-0.2%磷酸(47:53)。結(jié)果:最佳制備工藝為CS—TPP質(zhì)量濃度
3、比5:1,cs溶液pH4,CS—BC投料質(zhì)量比2:1,攪拌時間15min,轉(zhuǎn)速1000r·min~;Bc—CS.NPs外觀測整,粒度分布均勻,平均粒徑(314.32±12.36)nm,包封率(54.73±0.26)%,載藥量(23.68±0.32)%,多分散系數(shù)0.335±0.041,Zeta電位(24.58±0.36)mV。結(jié)論:優(yōu)化的制備工藝穩(wěn)定可行,Bs—CS—NPs形態(tài)為均一的類球形實體粒子,形狀規(guī)則,形態(tài)飽滿。[關(guān)鍵詞】黃芩苷;殼聚糖;納米粒;離子交聯(lián)法;包封率;載藥量;粒徑分布[中圖分
4、類號]R283.6[文獻標(biāo)識碼]A[文章編號]1005—9903(2014)15—0015-05[doi]1o.13422/j.cnki.syfjx.2014150015[網(wǎng)絡(luò)出版地址]http://www.cnki.net/kcms/detail/11.3495.R.20140609.1538.010.html[網(wǎng)絡(luò)出版時間]2014-06.0915:38PreparationandCharacterizationofBaicalin-chitosanNanoparticlesWUYing,LI
5、Yang,LIFeng—qin,YANGHua—sheng。,WANGFang(1.JiangxiProvinceTumorHospital,Nanchang330029,China;2.JiangxiUniversityofTraditionalChineseMedicine,Nanchang330004,China;3.XiangyaPingkuangCooperationHospital,Xinyu338000,China)[Abstract]objective:Toprepareandas
6、sessofbaicalin—chitosannanoparticles(BC—cs-NPs).Method:BC—CS·NPswerepreparedbyioniccross—linking.Singlefactorexperimentswereusedtoinspecteffectsregularityofstirringtime,rorationrate,pHofchitosan(CS)solution,feedingratioofCS—baicalin(BC)andconcentratio
7、nratioofCS—sodiumtrip0lyphosphate(TPP)onencapsulationeficiencyand’particlesize;Withcompositescoreofdrugloadingandencapsulationefficiencyasindex,orthogonaltestwasadoptedtooptimizepreparationtechnologyofBC—CS—NPsbytakingpHofCSsolution,feedingratioofCS—B
8、CandconcentrationratioofCS—TPPasfactors;morphologyofBC—CS—NPswasobservedbyelectronmicroscope,particlesizeandZetapotentialweredeterminedbylaserparticlesizeanalyzer,HPLCwasemployedtodeterminedrugloadingandencapsulationeficiencywithmobilephaseofm