对离子交换膜吸附剂进行比较分析,用于在超过和透过缓冲器制备过程中去除内毒素
Sven Heimann1, Andrew Vail2, Sophie Muczenski2
1Rentschler Biopharma SE Laupheim Germany.
Engineering in life sciences
|July 7, 2025
概括
这项研究评估了离子交换膜吸附剂在药物制造过程中消除内毒素. 一种基于guanidinium的吸附剂有效地从各种缓冲类型中去除了内毒素,这对于制药质量控制非常有价值.
科学领域:
- 生物制药制造业 生物制药制造业
- 过程化学 过程化学
- 分析化学 分析化学
背景情况:
- 内毒素是药物制造中的关键污染物,需要强有力的清除策略.
- 超过和透过 (UFDF) 是关键的单元操作,但在缓冲剂制备过程中,内毒素的进入构成风险.
- 阳离子交换膜吸附剂正在作为控制内毒素的风险减轻策略进行探索.
研究的目的:
- 调查商用离子交换膜吸附剂对内毒素去除的疗效.
- 为了评估在UFDF单元操作的缓冲器准备期间的内毒素去除.
- 为了在不同的缓冲条件下比较四级胺 (Q) 和基于关尼迪尼的吸附剂.
主要方法:
- 用一个括号研究设计来评估内毒素的去除.
- 测试了两个Q-修改膜和一个基尼功能化混合吸附剂.
- 在不同的离子强度和pH下,使用了代表UFDF启动和透矩阵的尖缓冲器.
主要成果:
- 基于Q的膜吸附剂在低离子强度的UFDF启动缓冲器 (高达24mS/cm) 中实现了内毒素去除到检测极限.
- 基于Q的吸附剂在复杂的透过缓冲器中由于干扰成分而显示出降低的有效性.
- 基于瓜尼尼的混合吸附剂在两种缓冲类型中,在广泛的pH (4.7-8.3) 和导电范围 (高达43mS/cm) 上,显示出一致的内毒素降低到检测极限.
结论:
- 在UFDF之前,基于guanidinium的混合膜吸附剂为内毒素减轻提供了强大的解决方案.
- 选择适当的膜吸附剂和缓冲条件对于有效的内毒素控制至关重要.
- 这一战略有助于通过限制内毒素污染来确保药物物质和安全.
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