【摘要】 目的:研究三维打印工艺对控释片中豆腐果苷释放的影响。方法:利用三维打印技术,通过对成形工艺参数:粉末中的骨架材料、黏结剂种类、粉末铺层厚度、喷涂次数、分区设置、孔径等的变化制备了不同的馅饼型多层豆腐果苷控释片,通过体外溶出试验,分析各参数对豆腐果苷释放的影响。结果:体外溶出实验表明三维打印技术在合理的分区设置与孔径大小情况下,能够通过黏结剂的选择、喷涂层厚的变化、喷涂次数的调节等多种方式调节馅饼型零级控释片的释药周期。结论:三维打印工艺过程在制备控释片上具有高度的灵活性和有效性。更多还原

【Abstract】 AIM: To investigate the influence of three dimentional printing processes(3DP) on the release of controlled-release helicid tablet. METHODS: Parameters of 3DP,such as skeleton polymer,binder,thickness of powder layering,number of spray painting,subregion ser up and diameter of aperture,were selected in the preparation of donut-shape multilayer controlled-release helicid tablet.Dissolution tests in vitro were carried out to analyse the effect of technological parameters on the release of helicid. RESULTS: Under the condition of fixed subregion and diameter of aperture,the selections of binders and thickness of spray painting were key factors concerning the release period of helicid. CONCLUSION: 3DP processes shows high flexibility and efficacy in the preparation of controlled-release tablets.更多还原