通过模拟化学潜力,通过模拟半孔二氧化配方的药物释放性能来接近药物释放性能
Andreas Niederquell1, Annika Hofer2, Barbora Vraníková3
1Department of Pharmaceutical Technology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic; Institute for Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, School of Life Sciences FHNW, Hofackerstr. 30, 4132 Muttenz, Switzerland.
概括
一种新的 in silico 方法预测了从中等孔携带体中释放的药物. 这种来自化学潜力的-水分离系数,准确地预测了药物释放动力学,有助于配方开发.
科学领域:
- 材料科学 材料科学 材料科学
- 制药科学 制药科学
- 计算化学的计算化学
背景情况:
- 半孔二氧化显示出作为不易溶解化合物的药物载体的潜力.
- 了解药物与的相互作用对于预测药物释放至关重要.
- 现有的in silico工具缺乏在水性介质中进行全面的药物载体相互作用分析.
研究的目的:
- 引入一种新的in silico方法,用于预测从半孔中释放的药物.
- 根据化学潜能计算,开发一个-水分区系数.
- 为了将这个系数与体外药物释放概况相关联.
主要方法:
- 将十种药物装入一个半孔载体 (Parteck® SLC 500).
- 使用差分扫描热度计 (DSC) 和X射线粉末衍射 (XRPD) 进行表征.
- 使用真实溶剂的导体样选模型 (COSMO-RS) 进行化学潜力计算,并推导出二氧化-水分区系数.
主要成果:
- 在溶解参数 (初始释放斜率,AUC) 和计算的分区系数 (Pearson r = -0.98和 -0.79分别) 之间观察到强烈的相关性.
- -水分区系数成功预测了药物释放动力学.
- 证明了化学潜力的潜力,以对药物释放进行定性排名.
结论:
- 成功开发了一种使用COSMO-RS衍生化学潜力的预测性in silico方法,用于分离二氧化和水.
- 这种方法可以估计从中等性二氧化配方的药物释放性能.
- 该方法提供了一个机制工具,用于 mesoporous silica 配方的开发,可能加速临床转化.
相关概念视频
Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model
771
Various dissolution theories provide insight into the factors that influence the dissolution rate. Danckwerts' Model suggests that turbulence, rather than a stagnant layer, characterizes the dissolution medium at the solid-liquid interface. In this model, the agitated solvent contains macroscopic packets that move to the interface via eddy currents, facilitating the absorption and delivery of the drug to the bulk solution. The regular replenishment of solvent packets maintains the...
771
Factors Influencing Drug Absorption: Pharmaceutical Parameters
404
Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...
404
Factors Affecting Dissolution: Particle Size and Effective Surface Area
1.6K
Dissolution kinetics, an essential aspect of oral drug delivery, is significantly influenced by the drug's particle size. According to the Noyes-Whitney dissolution model, the dissolution rate correlates directly with the drug's surface area. The larger the surface area, the higher the drug's solubility in water, leading to a faster drug dissolution rate. Reducing particle size increases the effective surface area, enhancing the dissolution process. Micronization and nanosizing are...
1.6K


