Evaluating and Modeling the Impacts of Mixed-Mode and Surface-Modified Column Chromatography on Virus Filtration Performance



Virus filtration is a critical process in the production of biotherapeutics and drug products derived by plasma fractionation. The filterability of process solutions on virus removal filters is largely dependent on preceding downstream process steps, and column chromatography can have a particularly large impact on the throughput and flux of virus filtration. Filterability (throughput and flux) on Planova BioEX was greatly reduced for mAb and plasma IgG spiked with aggregate, and filterability improvement achieved by processing with chromatography resins (modified CEX, mixed-mode AEX and normal AEX column) was specific to protein solution. Learn More