丹参酮ⅡA自纳米乳的制备及其质量的评价

华西药学杂志(2015)

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Abstract
目的研制丹参酮ⅡA自纳米乳来增加药物的溶出率。方法采用伪三元相图法,以乳剂外观、粒径、Zeta电位为指标优选处方,采用HPLC测定丹参酮ⅡA,考察其药剂学特性。结果优选处方为Tween80-PEG400-MCT(31∶62∶7),载药量1.5 mg·m L-1,平均粒径42.63±1.80 nm,多分散系数PDI为0.16±0.037,Zeta电位为-12.35±0.96 m V。以0.5%Tween80为溶出介质,丹参酮ⅡA自纳米乳在1.5 h时的累积释药量即可达载药量的55%。结论丹参酮ⅡA自纳米乳可显著提高药物的溶出速率。
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Key words
Tanshinone ⅡA,Self-emulsifying,Drug delivery system,Quality evaluation,Pseudo-ternary phase diagram,HPLC
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