精确的皮内药物输送通过无针注射器中的弹性膜介导
Zeying Hu1, Jiahui He2, Dianzhi Xie2
1Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong 00000, Hong Kong SAR, P. R. China.
ACS applied bio materials
|June 5, 2025
概括
这项研究引入了弹性膜辅助无针注射 (NFI),以改善皮内药物输送. 这种新的方法增强了药物扩散,减少了注射深度,为传统针头提供了更安全的替代方案.
科学领域:
- 生物医学工程 生物医学工程
- 药物输送系统 药物输送系统
- 材料科学 材料科学 材料科学
背景情况:
- 传统的基于针的注射带来了诸如针刺伤害和患者不良遵守等风险.
- 无针注射 (NFI) 系统提供了更安全的替代方案,但需要优化以实现精确的皮内注射.
- 控制药物沉积和扩散对于有效的皮肤内疗法至关重要.
研究的目的:
- 开发和评估一种弹性膜介导的无针注射 (NFI) 系统,用于精确的皮内药物输送.
- 研究弹性膜对药物分布特性的影响,包括透深度和扩散.
- 评估膜辅助NFI在生物组织上的各种药物配方的疗效.
主要方法:
- 使用水凝模型和猪皮肤来模拟皮内注射条件.
- 采用高速摄影来分析注射过程中的水力动力学特征,使用或不使用弹性膜 (多甲基,聚乙烯).
- 用水溶液和油溶液来模仿不同的药物配方.
主要成果:
- 弹性膜显著调节了水凝中的药物分布,使透深度降低了60%并增加了90%的水平扩散.
- 与传统的NFI相比,在猪皮肤上,膜辅助的NFI可减少40-50%的注射深度,并增加8-44%的水平扩散.
- 这些发现表明,通过膜介导方法改善了药物进入皮肤层的传递.
结论:
- 弹性膜辅助的NFI是一种简单,快速和有效的策略,用于精确的皮内药物输送.
- 这项技术有可能提高药物的疗效,特别是在疫苗接种等应用中.
- 该方法提供了对药物沉积和扩散的增强控制,以实现更安全,更有效的管理.
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