Author Archives: Serguei Kosvintsev

New Agarose-Based Protein A Resins Designed for Cost Effective Purification of MAbs

It is well recognized that the cost of Protein A resins is substantial. If a product makes it to marketing approval and manufacturing the high cost is amortized over a large number of purification cycles then the contribution to cost of goods is acceptable. However, a high percentage of clinical projects will fail and the Protein A resin will only be used for a small number of cycles. One way to address this issue is to use a less expensive…

Modern Resins for a MAb Platform Process

Purolite is using new technologies to produce homogeneous beaded agarose for protein purification at large scale. Particle sizes range from 40 to 90 μm. The resins cover applications from capture to polishing and demonstrate improved pressure–flow properties (Figure 1). The porosity structure is optimized for medium-sized proteins such as monoclonal antibodies (MAbs). Read the full text of this application note in the PDF (Login required).