丹参酮Ⅱa缓释固体脂质纳米粒凝胶骨架片的研究.doc

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丹参酮Ⅱa缓释固体脂质纳米粒凝胶骨架片的研究,丹参酮Ⅱa缓释固体脂质纳米粒凝胶骨架片的研究19300字 35页目 录摘 要(1)abstract(2)前 言(3)第一章:丹参酮Ⅱa固体脂质纳米粒的制备及处方筛选(5)1 实验仪器与材料(5)1.1 实验仪器(5)1.2 实验材料(5)2 实验方法(6)2.1 药物含量测定方法(6)2.2 固体脂质纳米粒的制备(6)...
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丹参酮ⅡA缓释固体脂质纳米粒凝胶骨架片的研究
19300字     35页

目  录
摘   要 (1)
ABSTRACT (2)
前   言 (3)
第一章:丹参酮ⅡA固体脂质纳米粒的制备及处方筛选 (5)
1 实验仪器与材料 (5)
1.1 实验仪器 (5)
1.2 实验材料 (5)
2 实验方法 (6)
2.1 药物含量测定方法 (6)
2.2 固体脂质纳米粒的制备 (6)
2.3 包封率的测定 (6)
2.4 载药量的测定 (7)
2.5 正交实验 (7)
3 实验结果与讨论 (8)
3.1 色谱图 (8)
3.2 标准曲线及线性范围 (9)
3.3 正交实验结果及方差分析 (9)
3.4 工艺验证结果 (11)
4 小  结 (11)
第二章:缓释固体脂质纳米粒凝胶骨架片的制备及体外释放 (12)
1 实验仪器与材料 (12)
1.1 实验仪器 (12)
1.2 实验材料 (13)
2 实验方法 (14)
2.1 制备方法 (14)
2.2 体外释放 (14)
2.3 体外释放模型 (14)
3 实验结果与讨论 (14)
3.1 体外释放结果 (15)
3.2 体外释放曲线拟合结果 (17)
4 小  结 (19)
全文结论 (20)
参考文献 (21)
综   述 (23)
致    谢 (31)

 
 
 
摘  要
目的:对丹参酮ⅡA缓释固体脂质纳米粒凝胶骨架片的制备方法、处方及其体外释放进行研究,为丹参酮ⅡA新制剂的开发提供思路和方法。
方法: 采用正交设计实验方法,以载药量和包封率为指标优选丹参酮ⅡA固体脂质纳米粒的处方,并采取单因素方法考察吸附介质(乳糖、蔗糖的甘露醇),HPMC类型(K4M,K15M和K100M)及其用量(4%,7%和10%),PEG类型(PEG-400 ,PEG-400和PEG-10000)对丹参酮ⅡA缓释固体脂质纳米粒凝胶骨架片缓释性能的影响。
结果:丹参酮ⅡA固体脂质纳米粒的最佳处方为:丹参酮ⅡA 60 mg、单硬脂酸甘油酯100 mg、PEG-4000 200 mg、吐温-80 400 mg、硬脂酸 200 mg。体外释放速度:PEG-4000>PEG-400>PEG-10000;甘露醇>蔗糖≈乳糖;HPMC类型K4M > K15M > K100M;HPMC K15M含量4% > 7% > 10%。丹参酮ⅡA缓释固体脂质纳米粒凝胶骨架片在0.5h─11h的最佳拟合模型为零级模型。
结论:经优选处方后,丹参酮ⅡA缓释固体脂质纳米粒凝胶骨架片的载药量和包封率显著性提高,其体外释放符合缓释制剂药物释放设计要求。

关键词:丹参酮ⅡA;固体脂质纳米粒;凝胶骨架片;体外释放
 
A study on the sustained release Solid lipid nanoparticles hydrophilic matrix tablets of TanshinoneⅡA
Abstract
Objectives: Study on the preparation, formula and in-vitro release behavior of solid lipid nanoparticles hydrophilic matrix tablets of TanshinoneⅡA, which will provide some useful data for the development of the new dosage form of TanshinoneⅡA.
Methods: The formula of the solid nanoparticles has been studied by using orthogonal design with the entrapment efficiency and the percentage of drug loading as the index. The formula of the solid nanoparticles hydrophilic matrix tablet has been studied on the drug release behavior by using the single factor exploration method. It included the influence of the type and amount of the HPMC (K4M, K15M and K100M), the molecular weight of PEG (400, 4000 and 10000) and absorptive agent (Mannitol, sucrose and lactose).
Results: The best formula of the solid nanoparticle was tanshinone ⅡA 60 mg, glyceryl monostearate 100 mg, PEG4000 200 mg, Tween 80 400 mg and stearic acid 200 mg. The drug release rate of drug from the hydrophilic matrix tablet altered with the alteration of PEG, absorptive agent and the type and weight percentage of HPMC in the tablet. The drug release rates followed the following order: PEG-4000 > PEG-400 > PEG-10000, Mannitol > sucrose ≈ lactose,K4M > K15M > K100M,4% > 7% > 10% (K15M). Drug released from the tablet is following Zero-order mold between 0.5~11h.
Conclusion: Tanshinone ⅡA solid nanoparcles of the best formula owns good drug loading percentage and entrapment efficiency. Drug can be continuously released from the solid nanoparcles hydrophilic matrix tablet for a long time.

Keywords: Tanshinone ⅡA; Solid nanoparciles; Hydrophilic matrix tablet; In-vitro release