Author Archives: Ushma Mehta

Efficient Virus Clearance Across the MilliporeSigma Downstream Purification Portfolio

The downstream purification process of any biologic has several objectives: purity, yield, and safety for humans or animals. A critical component of safety assurance is reducing virus to levels that meet stringent regulatory requirements. Virus reduction can be achieved through multiple complementary approaches and most processes rely on a combination of technologies that are designed primarily to achieve purification targets, but may also offer opportunities for virus reduction. The purpose of this project was to establish capabilities for producing a…

ChromaSorbâ„¢ Single-Use Membrane-Based Anion Exchanger

    Figure 1:   Millipore Corporation’s new ChromaSorb membrane adsorber uses an innovative membrane-based anion exchanger to perform robust impurity clearance at a wide range of salt concentrations. This feature enables users to improve their process economics by eliminating the downstream bottleneck of buffer tank capacity inherent with the use of other membrane adsorbers, as well as traditional resin chromatography. ChromaSorb membrane adsorber provides enhanced process flexibility and efficiency and a smaller manufacturing footprint than traditional anion resins and…