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黄芩苷脂质纳米泡沫气雾剂的制备工艺优化                                                 Δ


        余红芳 ,吴仁杰 ,邹佳峰 ,诸佳珍 ,姚文栋 ,施 政 (1.浙江中医药大学附属第一医院药剂科,杭州
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        310018;2.杭州领业医药科技有限公司,杭州 310018;3.浙江中医药大学药学院,杭州 311400)
        中图分类号 R943;R283.6       文献标志码 A           文章编号     1001-0408(2022)08-0943-07
        DOI  10.6039/j.issn.1001-0408.2022.08.07
        摘  要   目的 优化黄芩苷脂质纳米泡沫气雾剂(BC-LN-FA)的制备工艺。方法 以黄芩苷(BC)为模型药物,采用薄膜分散法制备
        黄芩苷脂质纳米粒(BC-LN),采用均质乳化法制备BC-LN-FA;以粒径和包封率(EE)为指标,以投药量、乳化剂用量、助乳化剂用
        量、均质时间为考察因素,采用Box-Behnken设计-响应面法对其制备工艺进行优化,并对所得BC-LN-FA的形态、粒径、多分散系
        数(PDI)、EE、黏度、泡沫消解率和体外透皮释放等进行表征。结果 最优工艺为投药量25 mg、乳化剂(硬脂酸-大豆卵磷脂-甘油质
        量比 1 ∶ 1 ∶ 1)用量 40 mg、助乳化剂(十八醇-乳酸质量比 1 ∶ 1)用量 30 mg、均质时间 20 min。3 次验证实验结果显示,所制
        BC-LN-FA的粒径为(151.70±2.40)nm、EE为(68.62±1.16)%(RSD均小于2%,n=3),与预测值(粒径150.80 nm、EE 67.02%)的
        偏差分别为0.60%、2.39%。按上述最优工艺所得BC-LN-FA乳液呈淡黄色,粒径均一且呈类圆形,黏度为(122.92±5.09)mPa·s,
        泡沫消解率为(65.32±3.22)%,BC 含量为(7.01±0.12)%,PDI 为(0.199±0.006);48 h 时,其在 pH7.4、6.8、5.0 的磷酸盐缓冲液
       (PBS)中的累积释放百分率分别为(54.12±2.69)%、(57.85±4.25)%、(59.47±1.83)%,而游离BC在pH7.4的PBS中的累积释放
        百分率仅为(15.04±1.43)%。结论 所得最优工艺稳定、可行;所得BC-LN-FA粒度均匀,消泡快,具有一定黏度。
        关键词    黄芩苷;脂质纳米泡沫气雾剂;Box-Behnken设计-响应面法;工艺优化;含量测定;体外透皮释放

        Optimization of preparation technology of baicalin lipid nano foam aerosol
        YU Hongfang ,WU Renjie ,ZOU Jiafeng ,ZHU Jiazhen ,YAO Wendong ,SHI Zheng(1. Dept. of Pharmacy,
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        the First Affiliated Hospital of Zhejiang Chinese Medical University,Hangzhou 310018,China;2. Hangzhou
        SoliPharma Limited Liability Company,Hangzhou 310018,China;3. College of Pharmaceutical Science,
        Zhejiang Chinese Medical University,Hangzhou 311400,China)
        ABSTRACT    OBJECTIVE To optimize the preparation technology of the baicalin lipid nano foam aerosol (BC-LN-FA).
        METHODS Baicalin lipid nanoparticle(BC-LN)and BC-LN-FA were prepared by the thin film dispersion method and homogeneous
        emulsification method,respectively,using baicalin (BC) as the model drug. The preparation technology was optimized by
        Box-Behnken design-response surface methodology using particle size and encapsulation efficiency(EE)as indexes,with dosage,
        emulsifier dosage,co-emulsifier dosage and homogenization time as factors. The morphology,particle size,polymerdispersity
        index (PDI),EE,the viscosity,the foam dissolution rate and in vitro transdermal release of BC-LN-FA were characterized.
        RESULTS The optimal technology included 25 mg BC,40 mg emulsifier(mass ratio of stearic acid-soybean lecithin-glycerol was
        1 ∶ 1 ∶ 1),30 mg co-emulsifier(mass ratio of octadecanol-lactic acid was 1 ∶ 1),homogenization time of 20 min. Results of 3 times
        of validation tests showed that particle size of prepared BC-LN-FA was (151.70 ± 2.40) nm,EE was (68.62 ± 1.16)% ;the
        deviation of them from the predicted value(particle size of 150.80 nm,EE of 67.02%)were 0.60% and 2.39% respectively. The
        BC-LN-FA prepared by the optimal process was light yellow opalescence,uniform in particle size and round-like in shape. The
        viscosity,the foam dissolution rate,the content of BC and PDI were(122.92±5.09)mPa·s,(65.32±3.22)%,(7.01±0.12)%
        and(0.199±0.006),respectively. At 48 h,the cumulative release rates of BC-LN-FA in phosphate buffer saline(PBS)at pH7.4,
        6.8,5.0 were(54.12±2.69)%,(57.85±4.25)% and(59.47±1.83)%,respectively;those of free BC in PBS at pH7.4 was only
       (15.04±1.43)%. CONCLUSIONS The optimized technology is stable and feasible. Prepared BC-LN-FA has a uniform particle
        size,high digestion rate and certain viscosity.
        KEYWORDS     baicalin;lipid nano foam aerosol;Box-Behnken design-response surface methodology;technology optimization;
        content determination;in vitro transdermal release
           Δ 基金项目:浙江省基础公益研究计划项目(No.LQ19H280004);               黄芩苷(baicalin,BC)属于小分子黄酮糖苷类成分,
        浙 江 省 药 学 会 医 院 药 学 科 研 专 项 资 助 项 目(No.2019ZYY22,  是黄芩 Scutellaria baicalensis Georgi 的主要有效成分之
        No.2019ZYY23)
                                                           一,具有抗菌、抗炎、抗病毒、抗氧化、调节免疫等药理活
           *药师,硕士研究生。研究方向:新型给药系统及靶向制剂。电
                                                                                            [3]
                                                           性  [1-2] ,能保护皮肤免受紫外线的伤害 。目前,我国已
        话:0571-86008512。E-mail:806206771@qq.com
           # 通信作者:副主任药师,博士研究生。研究方向:中药靶向递药                  有BC片剂、胶囊等相关产品,但因该成分在胃肠道中不
        系统。电话:0571-86008512。E-mail:frysz@163.com           稳定且溶解度较低,因而存在吸收差、生物利用度低等

        中国药房    2022年第33卷第8期                                               China Pharmacy 2022 Vol. 33 No. 8  ·943 ·
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