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承德医学院中药研究所/河北省中药研究与开发重点实验室,河北 承德 067000
硕士研究生。研究方向:药物新剂型。E-mail:741376718@qq.com
教授,硕士生导师,博士。研究方向:药物新剂型。E-mail:wangru1973@sina.com
收稿日期:2023-10-06,
修回日期:2024-01-28,
录用日期:2024-01-31,
纸质出版日期:2024-04-30
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薛飞,杨岚,常金花,等.叶酸修饰的粉防己碱壳聚糖-硬脂酸纳米胶束的制备、表征及体外抗炎活性考察[J].中国药房,2024,35(08):925-930.
XUE Fei,YANG Lan,CHANG Jinhua,et al.Preparation, characterization and in vitro anti-inflammatory activity of tetrandrine-loaded chitosan-stearic acid nano micelles modified with folic acid[J].ZHONGGUO YAOFANG,2024,35(08):925-930.
薛飞,杨岚,常金花,等.叶酸修饰的粉防己碱壳聚糖-硬脂酸纳米胶束的制备、表征及体外抗炎活性考察[J].中国药房,2024,35(08):925-930. DOI: 10.6039/j.issn.1001-0408.2024.08.05.
XUE Fei,YANG Lan,CHANG Jinhua,et al.Preparation, characterization and in vitro anti-inflammatory activity of tetrandrine-loaded chitosan-stearic acid nano micelles modified with folic acid[J].ZHONGGUO YAOFANG,2024,35(08):925-930. DOI: 10.6039/j.issn.1001-0408.2024.08.05.
目的
2
制备叶酸(FA)修饰的粉防己碱(TET)壳聚糖(CS)-硬脂酸(SA)纳米胶束(简称“FA-CS-SA/TET纳米胶束”),并进行表征和体外抗炎活性考察。
方法
2
采用超声法制备FA-CS-SA/TET纳米胶束,以包封率(EE)、载药量(DL)、粒径的综合评分为评价指标,FA-CS-SA与TET质量比、超声功率和超声次数为考察因素,根据正交实验确定最优制备工艺并验证;对以最优工艺制备的FA-CS-SA/TET纳米胶束进行表征,并考察其体外释放性能。以RAW264.7细胞为实验对象,考察其体外抗炎活性。
结果
2
最优制备工艺为FA-CS-SA与TET质量比2∶1,超声功率200 W,超声200次。以最优工艺制备的FA-CS-SA/TET纳米胶束的EE为(98.86±0.30)%,DL为(28.57±0.34)%,平均粒径为(227.0±9.4)nm,多分散性指数为0.42±0.04,Zeta电位为(12.6±2.3)mV;该纳米胶束呈类圆形且分布均匀,其在0.5%十二烷基硫酸钠溶液中释放较快,72 h内的累积释放度为(79.49±3.43)%,且其抗炎作用强于TET原料药。
结论
2
本研究成功制备了FA-CS-SA/TET纳米胶束,其载药性能良好,粒径均匀,且具有较好的体外抗炎活性。
OBJECTIVE
2
To prepare tetrandrine (TET)-loaded chitosan(CS)-stearic acid (SA) nano micelles modified with folic acid (FA) (FA-CS-SA/TET nano micelles), characterize them a
nd study the anti-inflammatory effect
in vitro
.
METHODS
2
FA-CS-SA/TET nano micelles were prepared by ultrasonic method; the preparation technology was optimized by orthogonal test and validation test was also performed with the mass ratio of FA-CS-SA to TET, ultrasound power and ultrasound times as the factors, using the comprehensive score of entrapment efficiency (EE), drug loading (DL) and particle size as evaluation index. FA-CS-SA/TET nano micelles prepared by the optimal technology were characterized, and their release performance
in vitro
was investigated. RAW264.7 cells were used as subjects to investigate their anti-inflammatory activity
in vitro
.
RESULTS
2
The optimal preparation technology included that the mass ratio of FA-CS-SA to TET was 2∶1, ultrasonic power was 200 W, and the ultrasonic frequency was 200 times. The parameters of FA-CS-SA/TET nano micelles prepared by optimized technology included that EE was (98.86±0.30)%, DL was (28.57±0.34)%, the average particle size was (227.0±9.4) nm, polydispersity index was 0.42±0.04, and the Zeta potential was(12.6±2.3)mV, respectively. The nano micelles were uniform in appearance and round in shape. The nano micelles were released quickly in 0.5% sodium dodecyl sulfate solution, with a cumulative release rate of (79.49±3.43)% within 72 hours, and its anti-inflammatory effect was stronger than that of TET raw materials.
CONCLUSIONS
2
FA-CS-SA/TET nano micelles are prepared successfully in the study, with good drug loading performance, uniform particle size, and good
in vitro
anti-inflammatory activity.
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