用于生物制造的dDNA片段的持续监测:传感器开发和可行性研究
Selina A J Janssen1, Arthur M de Jong2, Menno W J Prins3
1Department of Biomedical Engineering, Eindhoven University of Technology, 5612 AZ, Eindhoven, the Netherlands; Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, 5612 AZ, Eindhoven, the Netherlands.
Biosensors & bioelectronics
|August 3, 2025
概括
这项研究开发了一种连续生物传感器来测量宿主细胞DNA,这对于监测生物制造至关重要. 这种新型传感器使用粒子运动和抗体来检测双链DNA片段,改善了过程控制.
科学领域:
- 生物技术是生物技术.
- 分析化学 分析化学
- 生物工艺工程 生物工艺工程
背景情况:
- 生物制造工艺在控制和监测方面面临挑战,原因是固有的变化.
- 精确测量生物分子成分对于理解和优化细胞系统至关重要.
- 主细胞DNA是上游细胞死亡和下游生物处理中的产品杂质的关键标记.
研究的目的:
- 开发一种连续传感器,用于监测生物制造中的宿主细胞DNA.
- 用抗dsDNA抗体对双链DNA片段进行特定检测.
- 建立一个能够实时测量和过程控制的生物传感器系统.
主要方法:
- 基于粒子运动的连续生物传感器的开发.
- 使用了具有抗dsDNA抗体的竞争性测试格式.
- 研究了对不同长度和度的双链DNA片段的传感器反应.
主要成果:
- 生物传感器证明了与双链DNA片段的可逆相互作用.
- 在纳米和微分子度范围内检测到双链DNA.
- 在模拟生物制造环境中成功测量了波动的宿主细胞DNA度.
结论:
- 开发的连续生物传感器显示了对宿主细胞DNA实时监测的希望.
- 这项技术可以加强对上游和下游生物处理的控制.
- 需要进一步开发,以实现用于常规生物制造应用的传感器.
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