粘性弹性水凝与粘性弹性水凝相比,具有不同链条灵活性的粘合剂片的粘合机制
Gergely Stankovits1, Kata Szayly1, Dorián László Galata2
1Department of Physical Chemistry and Materials Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111, Budapest, Hungary.
Materials today. Bio
|January 15, 2025
概括
这项研究引入了粘膜粘附的新概念,考虑了配方和粘膜膜.
科学领域:
- 材料科学 材料科学 材料科学
- 制药科学 制药科学
- 生物材料是一种生物材料.
背景情况:
- 粘膜表现出可变的粘弹性特性,是粘粘性药物递送系统的目标.
- 当前的粘膜粘合策略往往忽视了配方辅助剂和粘膜性质之间的相互作用.
- 基甲基纤维素 (HPMC) 和聚烯酸 (PAA) 是常见的粘膜粘合剂辅助剂.
研究的目的:
- 提出一个综合的粘结结合概念,考虑到粘合剂间相和散体相的粘性弹性和拉伸性质.
- 在受控的粘膜模拟材料上研究粘膜粘合,以隔离关键性质关系.
主要方法:
- 使用冷/解 (FT) 聚乙醇 (PVA) 水凝作为具有可调节粘弹性质的粘膜模拟材料.
- 通过FT循环数和聚合物度控制PVA水凝粘性.
- 在PVA水凝上评估HPMC和PAA片的粘合强度.
主要成果:
- HPMC片的粘膜粘合强度显著取决于PVA水凝的粘性弹性.
- 这种依赖性归因于HPMC链的灵活性和相互穿透性有限,形成了薄粘合剂间相.
- 确定了性和强度之间的伸缩规律,拉伸性和粘合性,以及粘性弹性和粘合性特征之间的相关性.
结论:
- 考虑配方和基质性质的综合方法对于理解粘膜粘附至关重要.
- 这项研究提供了关于粘膜粘合剂配方和仿生材料的合理设计的见解.
- 建立的相关性可以指导开发更有效的粘膜粘合系统.
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