工艺参数对冷化的多孔微结构的影响:德克斯的一个案例研究
Andraž Košir1, Fiora Artusio2, Leif-Thore Deck1
1Institute of Energy and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland.
Journal of pharmaceutical sciences
|January 2, 2025
概括
制药配方的冷干燥产生多孔结构. 这项研究验证了一种手动孔隙分析方法,并发现较高的德克斯度和冷却速度产生更小的孔隙和更长的干燥时间.
科学领域:
- 制药科学 制药科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 冷干燥 (冷化) 可以延长药品的保质期.
- 该过程涉及冷和随后的干燥,从而形成一个多孔的固体.
- 了解微观结构对于优化冷干燥过程至关重要.
研究的目的:
- 为了研究工艺参数对冷干燥德克斯溶液多孔微结构的影响.
- 建立和验证可靠的手动方法论,用于孔径大小的表征.
- 为了将微结构性质与冷干燥性能相关联.
主要方法:
- 在各种条件下冷干燥德克斯溶液.
- 扫描电子显微镜 (SEM) 用于成像孔微结构.
- 手动分析SEM图像以确定毛孔大小分布.
- 可靠性分析,以评估毛孔表征方法的稳定性.
主要成果:
- 一套明确的指导方针确保了分析师之间可比的毛孔大小分布.
- 较高的德克斯特兰度导致毛孔大小大致较小.
- 增加的冷却速度也导致了较小的孔径和延长的初级干燥时间.
结论:
- 手动孔隙大小分析方法是强大的和可靠的.
- 德克斯的度和冷却速度显著影响了由此产生的孔隙微观结构.
- 我们了解了冷微结构与干燥性能之间的关系.
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