Nuvia™Q is an ultra-high capacity anion exchange media specifically designed to meet the need for robustness, high productivity, and selectivity demanded by today’s downstream processes. The launch of Nuvia Q along with the Nuvia S cation exchanger, released in late 2010, offers process developers best-in-class ion exchangers for the capture and polish stages of biopharmaceutical purification. Designed to meet the demanding pressure-flow requirements of commercial scale bio-processes, the anion exchanger has a dynamic binding capacity of greater than 170 mg/ml at a flow rate of 300 cm/hr, approximately tripling the binding capacity of first generation Sepharose Fast Flow media. By maintaining high binding capacity even at fast flow rates, it can significantly improve productivity, while reducing cycle time for downstream biotherapeutics purification. Moreover, due to the high binding capacity, less media is required for a given unit operation, thereby reducing capital costs and space requirements. It targets the purification of monoclonal antibodies, recombinant proteins and vaccines. This anion exchange media, when used for the intermediate polishing of monoclonal antibodies, demonstrates high selectivity in the clearance of common contaminants in the feed stream such as dsDNA and host cell proteins. In a workflow, it is used after capture by the company’s UNOsphere SUPrA™ or Nuvia S media cleared host cell protein by two orders of magnitude, while dsDNA levels were reduced to below detectable levels. Key benefits of the anion exchange media include: high binding capacity — requires less media to bind target molecules, which reduces capital expenses, increases productivity, and minimizes buffer requirements; excellent flow properties — produces faster flow rates without compromising dynamic binding capacity, allowing scientists to operate at higher linear velocities; strong selectivity — resolves closely related proteins and separates common feed stream contaminants, which produces higher-end product quality while reducing the number of purification steps required in the downstream process; and high recovery and base stability — delivers consistent and reproducible purification performance with chemical and physical stability for a high number of cycles reducing overall costs. It is built on the robust, industry-proven UNOsphere™ base matrix with proprietary surface extender technology. Surface modifications of the UNOsphere epoxide provide significantly higher binding capacities while maintaining fast flow rates.
Bio-Rad Laboratories, Hercules, CA 94547. www.Bio-Rad.com or call 510-724-7000