The effects of flux on the clearance of minute virus of mice during constant flux virus filtration

The effects of flux on the clearance of minute virus of mice during constant flux virus filtration
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恒通量病毒过滤过程中流量对小鼠微小病毒清除的影响

DOI:
10.1002/bit.27778
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发表时间:
2021
影响因子:
3.8
通讯作者:
Qian, Xianghong
Qian, Xianghong
中科院分区:
工程技术2区
文献类型:
--
作者:
Fan, Rong;Namila, Fnu;Sansongko, Davar;Wickramasinghe, S. Ranil;Jin, Mi;Kanani, Dharmesh;Qian, Xianghong

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进行恒定通量病毒过滤实验以评价用于连续生物处理应用的四种商业病毒过滤器的小鼠微小病毒保留行为。根据Peclet数和加工物流以及过滤器特性选择助熔剂。在5(LMH)的低通量条件下,当扩散力占主导地位时,对于四个过滤器中的三个,对于低污染单克隆抗体的过滤,观察到所有滤液级分的显著突破。当扩散力和对流力在40 LMH下同等重要时,仅在研究的4个过滤器之一中观察到缓冲液追踪中的病毒突破。当对流力在60 LMH或更高时占主导地位时,在研究的所有三种细小病毒过滤器中均观察到高度的病毒清除。我们的工作阐明了在恒定通量病毒过滤过程中的病毒清除,以用于未来的连续生物制造。
Constant flux virus filtration experiments were conducted to evaluate minute virus of mice retention behavior of four commercial virus filters for continuous bioprocessing applications. Fluxes chosen were guided by the Peclet number and the processing logistics as well as based on the filter characteristics. At the low flux condition of 5 (LMH) when diffusive force dominates, a significant breakthrough was observed for all the filtrate fractions for the filtration of a low fouling monoclonal antibody for three of the four filters. When both diffusive and convective forces are equally important at 40 LMH, virus breakthrough in buffer chase was observed only in one of the four filters investigated. When convective force dominates at 60 LMH or above, a high degree of virus clearance was observed for all three parvovirus filters investigated. Our work shed light on virus clearance during constant flux virus filtration for future continuous biomanufacturing.
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