对生物制药应用的高密度聚乙烯 (HDPE) 辐射技术的比较分析
Blanche Krieguer1, Fabien Girard2, Samuel Dorey3
1Aix Marseille Univ, CNRS, ICR, Case 551, 13397 Marseille, France.
概括
电子束,X射线和玛辐射对医疗级高密度聚乙烯 (HDPE) 的性能影响最小. 这项研究证实了HDPE的存在.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 辐射物理 辐射物理
背景情况:
- 医疗级高密度聚乙烯 (HDPE) 广泛用于制药包装和设备.
- 对于医疗应用而言,诸如电子束 (e-beam),X射线和玛辐射等灭菌方法至关重要.
- 了解不同辐射技术对HDPE的影响对于确保产品的安全性和有效性至关重要.
研究的目的:
- 为了比较电子射线,X射线和玛辐射对医疗级HDPE的影响.
- 评估这些辐射技术对于制药应用的适用性.
- 评估HDPE在辐射后的化学,物理和机械性能变化.
主要方法:
- 用不同剂量的电子,X射线和马射线对HDPE样品进行辐射.
- 机械测试 (拉力强度,破裂时的延长).
- 使用差分扫描热量计 (DSC) 进行热量分析.
- 电子自旋共振 (ESR) 光谱仪用于激素检测.
- 对视觉变化的色度分析.
- 高性能液态染色学 (HPLC) 用于量化氧化副产品.
主要成果:
- 机械性能 (抗拉强度,破裂时延长) 在所有辐射类型和剂量中保持稳定.
- 在较高剂量下观察到化温度略有下降,所有技术的化峰值均相当.
- ESR检测到过渡性基和基基,根据照射类型或剂量没有显著差异.
- 观察到黄色,归因于特定的添加剂,而不是辐射技术.
- 在HPLC分析中,所有三种照射方法的氧化潜力均相当.
结论:
- 电子射线,X射线和玛辐射对医疗级HDPE的关键物理,化学和机械性能的影响最小.
- 这些辐射技术适用于制药应用中使用的HDPE的灭菌.
- 在三种辐射技术对HDPE性能的影响方面没有发现显著差异.
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