[1]党蓓蕾,颜庭轩,程 月,等.卡马西平微胶囊的超临界制备及溶出性能研究[J].南京理工大学学报(自然科学版),2014,38(06):833.
 Dang Beilei,Yan Tingxuan,Cheng Yue,et al.Supercritical preparation and dissolution property of carbamazepine microcapsule[J].Journal of Nanjing University of Science and Technology,2014,38(06):833.
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卡马西平微胶囊的超临界制备及溶出性能研究
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
38卷
期数:
2014年06期
页码:
833
栏目:
出版日期:
2014-12-31

文章信息/Info

Title:
Supercritical preparation and dissolution property of carbamazepine microcapsule
作者:
党蓓蕾12颜庭轩1程 月1王志祥1
1.中国药科大学 药学院,江苏 南京 210009; 2.上海中医药大学 中药学院,上海 201203
Author(s):
Dang Beilei12Yan Tingxuan1Cheng Yue1Wang Zhixiang1
1.School of Pharmacy,China Pharmaceutical University,Nanjing 210009,China; 2.Department of Pharmaceutical Sciences,Shanghai University of Traditional Chinese Medicine,Shanghai 201203,China
关键词:
卡马西平 微胶囊 超临界制备 溶出性能 超临界流体注入 聚乳酸-羟基乙酸 聚乙二醇单甲醚-聚乳酸-羟基乙酸 差示扫描量热法 红外光谱分析
Keywords:
carbamazepine microcapsule supercritical preparation dissolution property supercritical fluid impregnation poly lactic-co-glycolic acid methoxy polyethylene glycol-poly lactic-co-glycolic acid differential scanning calorimetry infrared spectroscop
分类号:
TQ026.5
摘要:
为提高卡马西平药物的溶出性能,基于超临界流体注入(SFI)技术,先后开展了聚乳酸-羟基乙酸(PLGA)、聚乙二醇单甲醚-聚乳酸-羟基乙酸(MPEG-PLGA)聚合物包裹卡马西平的微胶囊制备实验。结合差示扫描量热法和红外光谱分析,探讨了卡马西平在微胶囊中的形态及其与聚合物分子间的作用,同时实测了相应的药物体外溶出性能。结果表明:该文所制PLGA及MPEG-PLGA载药微胶囊中,卡马西平药物分子均呈无定形状态,均匀分散于包裹剂中; MPEG-PLGA载药微胶囊内药物与聚合物分子间有较强的相互作用,其塑性优于PLGA载药微胶囊; 以MPEG-PLGA为聚合物基体的微胶囊的药物溶出速率明显高于单纯以PLGA为基体的微胶囊,且外加的MPEG分子量越小、相应PLGA中n(LA):n(GA)越低越利于药物溶出速率的提高; 为提高药物溶出速率,进行SFI时也可适当增加微胶囊的载药量,但不宜过高,当载药量从9.8%、28.3%升至35.8%时,卡马西平药物的溶出速率依次增大,但当载药量达45.2% 时,对应微胶囊的溶出速率不升反降。
Abstract:
In order to improve the dissolution property of carbamazepine,corresponding experiments on producing microcapsule of carbamazepine wrapped by poly lactic-co-glycolic acid(PLGA)or methoxy polyethylene glycol-poly lactic-co-glycolic acid(MPEG-PLGA)are carried out using supercritical fluid impregnation(SFI).The forms of carbamazepine in the polymer matrices and molecular interactions between carbamazepine and the polymers are characterized by differential scanning calorimetry and infrared spectroscopy.The dissolution of carbamazepine in vitro is determined.The results show that:for the microcapsule using PLGA or MPEG-PLGA to carry drug,the carbamazepine molecules present amorphous state and disperse evenly in the matrices; the molecular interaction between carbamazepine and MPEG-PLGA is strong,and the plasticity of MPEG-PLGA microcapsule is better than that of PLGA microcapsule; the drug dissolution rate of the MPEG-PLGA matrix is obviously higher than that of the PLGA matrix,and the drug dissolution rate increases with the decrease of molecular weight of the adscititious MPEG and n(LA):n(GA); the drug dissolution rate can be appropriately enhanced when the drug loading rises from 9.8%,28.3% to 35.8%,when the drug loading reaches about 45.2%,the drug dissolution rate begins to descend.

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备注/Memo

备注/Memo:
收稿日期:2014-01-20 修回日期:2014-05-03
基金项目:江苏省自然科学基金(BK2012763)
作者简介:党蓓蕾(1985-),女,博士生,主要研究方向:制药结晶分离技术,E-mail:dang1114003@163.com; 通讯作者:王志祥(1966-),男,博士,教授,博士生导师,主要研究方向:制药分离工程和中药现代化工程技术,E-mail:chinawzx@sohu.com。
引文格式:党蓓蕾,颜庭轩,程月,等.卡马西平微胶囊的超临界制备及溶出性能研究[J].南京理工大学学报,2014,38(6):833-838.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2014-12-31