Author Archives: Mahesh Gavasane

Dynamic Binding Capacities of Protein A Resins for Antibody Capture: A Comparative Evaluation

The dynamic binding capacity (DBC) of a chromatography resin represents the total amount of target protein that the resin will bind under actual flow conditions before significant breakthrough of unbound protein occurs. This is a useful parameter for predicting what the process performance of a resin will be in actual use. DBC affects the overall amount of resin that can be packed in a given column for a process — and the number of batches that can be processed cost-effectively…

Establishing Effective High-Throughput Contaminant Removal with Membrane Chromatography

Bharat Serums and Vaccines Limited (BSV) in India conducted a study based on effective removal of host cell proteins (HCPs) from a recombinant hormone with a wide isoform profile in the acidic range imparting drug-product activity. Because the hormone and HCPs have a similar range of active species, the purification process with conventional chromatography resins had difficultly removing those HCPs from the active isoforms of the hormone. To solve that issue, a membrane chromatography technique was implemented. Our initial choice…