DOWNSTREAM PROCESSING WHITE PAPERS & CASE STUDIES

• Comparison Of Five Cell Culture Media Demonstrating CHO Cell Culture Growth In Batch Or Fed-Batch Process For Commercial Operations

  This case study details a two month, four phase project to design chemically-defined feed media that improved two simulated batch processes utilizing products by SAFC, Life Technologies, Thermo Fisher Scientific, and Irvine Scientific. By Mark C. Arjona, Evan R. Horowitz, Alex A. Jurisch, Jenny Y. Bang, Tom Fletcher, Irvine Scientific

• Important Considerations For Implementing A Single-Use Biomanufacturing Strategy

  Recent trends in biomanufacturing technology and the biopharmaceutical market are supporting the increased adoption of single-use (SU) manufacturing systems. On the demand-side, the biopharma industry is focusing on niche and rare diseases with smaller patient populations, resulting in the need for smaller, more agile biomanufacturing capacity. By Jodi M. Zobrist and Nicole W. O'Brien, Ph. D., Gallus Biopharmaceuticals, LLC

• Mammalian Virus Purification Using Ceramic Hydroxyapatite

  Conventional techniques for mammalian virus purification produce variable quality, quantity, and significant loss of particle infectivity. We  propose the chromatographic separation of viral particles of diverse sizes and from different families such as dengue, influenza, mouse hepatitis, adenovirus, poliovirus using CHT Ceramic Hydroxyapatite resin.

• Met One Sensors Resistant To Vaporous Hydrogen Peroxide (VHP) Pharmaceutical manufacturers often require an aseptic production environment to minimize the presence of microbes and their potential contamination of the manufactured product.
• Materials Of Construction For Biopharmaceutical Water Systems

  Stainless steels are uniquely qualified for bioprocessing applications not only because of their long service life, availability, and fabricability, but also because they are non-corroding, non-contaminant, can be polished to very smooth finishes, are strong and rigid, can withstand heat and chemical sterilization treatments, and are easily welded. By Michelle M. Gonzalez

• Removal Of Host Cell Proteins During Monoclonal Antibody Purification

  Protein A chromatography is a widely used and highly successful method of purifying recombinant monoclonal antibodies. However, since Protein A has high affinity for antibodies, harsh conditions such as low pH are often required to elute monoclonal antibodies from Protein A affinity columns. By 3M Purification Inc