Sunday, November 7, 2010 Daily Archives

Current advances in Protein A chromatography

In this work we present results with a novel high capacity Protein A medium prototype based on high flow agarose. The medium prototype was optimized for higher dynamic binding capacity (DBC) at long residence time. A 20–50% higher DBC was obtained compared to MabSelect SuReâ„¢. DBC was independent of MAb concentration in the range 1–10 g/L. Optimization of elution conditions (pH and flow rate) was performed by design of experiments. A lifetime study for 100 purification cycles, performed with a…

Factory of the Future

Fed-batch and perfusion culture are two dominant modes of operation for mammalian-cell-culture based processes. Challenges in the industry (such as competitive products for the same indication or desired cost reductions) are forcing many to explore new production options. Increasingly popular is the application of the ATFâ„¢ System to generate ultra high viable cell concentrations (>100m cells/ml) for a “concentrated†or “intensified†process. The use of the ATF System in a typical concentrated fed-batch process is shown which has generated a…