有控制释放的超声波涂层药物排泄支架,配有多层素和黄素
Jeremia Frandy Apitalau1, Dyah Listyarifah1,2, Adhyatmika -3
1Biomedical Engineering Program, Graduate School, Universitas Gadjah Mada, Yogyakarta, Indonesia.
Recent advances in drug delivery and formulation
|January 27, 2026
概括
这项研究开发了一种多层药物释放支架,使用基尼交叉连接的奇托和黄素来防止初始突发释放 (IBR). 这种新的系统可以在没有IBR的情况下证明药物释放的控制,从而降低了复原风险.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 聚合物化学 聚合物化学
背景情况:
- 商业药物释放支架经常表现出初始爆发释放 (IBR),增加了复原风险.
- 使用基尼交叉链接的奇托和黄素的多层策略被用来克服IBR的限制.
研究的目的:
- 开发和评估一种新的多层药物释放支架系统.
- 为了防止初始突发释放 (IBR) 并实现可控的药物输送.
主要方法:
- 超声波涂层技术用于在不同速度 (7,8,9毫米/秒) 创建均层.
- 通过扫描电子显微镜 (SEM) 进行表征.
- 使用Korsmeyer-Peppas和Peppas-Sahlin模型分析的药物释放研究;用UV-Vis光谱测量验证的分析方法.
主要成果:
- 由Korsmeyer-Peppas建模的释放数据表明超级案例II运输 (放松/侵蚀).
- 佩帕斯-萨林模型显示,Fickian扩散在最初的6-7天内占主导地位,随后是聚合物放松.
- 与较低的速度相比,更高的速度 (9 mm/s) 延长了Fickian扩散时间.
结论:
- 多层系统通过保持矩阵完整性,有效地防止初始爆破释放.
- 药物释放机制从扩散过渡到聚合物放松,避免爆发释放.
- 该系统展示了一个受控释放配置文件,通过零顺序模型合适来验证.
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