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Volume Reduction and Process Optimization with Cadence™ Inline Concentrator

Pall’s Cadence™ single-pass tangential flow filtration (SPTFF) technology provides a simple solution for continuous concentration and optimization of Downstream Processing (DSP) steps. It eliminates the conventional TFF recirculation loop and allows product to be concentrated in a single pump pass. The single-pass operation eliminates any mixing or foaming issues and exposes the product to low shear; thus, it is optimal for the processing of fragile and shear-sensitive molecules as well. The single-pass feed flow rates are lower compared to conventional…

Design of a New Range of High Capacity and High Flow Agarose Resins

With the continuing development of high titer cell lines, resins with very high capacity at relevant residence times are becoming increasingly important. This paper will present application and characterization data from a set of novel, agarose-based resins, with ion exchange functionality as well as with immobilized alkaline stable Protein A. The cation exchanger has a dynamic binding capacity of more than 120 mg monoclonal antibody/mL resin without the introduction of surface extenders. Performance data from an alkaline stable Protein A…

Production Scale Prepacked Chromatography for Use with 1000 L and 2000 L Bioreactors

This webcast features: Fletcher Malcom, Associate Director of Product Management at Repligen. The technical and economic benefits of ready-to-use, pre packed chromatography columns at bench- and small-scale have been proven and documented. The question remains: how do we scale up to production-scale? Now, for the first time, the new OPUS® 45 and 60 cm columns can purify a feed stream from a 1000L – 2000L bioreactor. This Ask the Expert webcast will show how the unique design of these GMP-scale…

Exploring Protein Stability by nanoDSF

nanoDSF determines thermal and chemical protein stability with ultra-high resolution and with unmatched reproducibility. The detection of the intrinsic tryptophan fluorescence enables measurements at close-to-native conditions in any buffer, even in the presence of detergents. nanoDSF is applied in antibody engineering, membrane protein research, formulation and quality control.

A Xeno-Free Culture System for hMSC from Various Sources Suitable for Initial Isolation and Expansion Toward Clinical Applications

Human mesenchymal stem cells (hMSC) are multipotent adult stem cells present in a variety of tissue niches in the human body. hMSC have advantages over other stem cell types due to the broad variety of their tissue sources, since they are immuno-privileged, and for their ability to specifically migrate to tumors and wounds in vivo. Due to these traits hMSC have become desirable tools in tissue engineering and cell therapy. In most clinical applications hMSC are expanded in vitro before…

CaPure-HA™: DoE Optimization of Elution Conditions

Design of Experiments (DoE), also called experimental design, is a statistical approach to process development that has gained wide acceptance in the biopharmaceutical industry. DoE is used to reduce development costs by speeding up the design process and to optimize the parameters of a particular step in the manufacturing process. The data presented here demonstrate the optimization of the CaPure-HA elution using a DoE approach.

Pressure Interruptions (Stop/Start) During Virus Filtration: Assuring Safety Using Robust Process Technology and An Appropriate Risk Mitigation Strategy

Following publications discussing the impact of pressure interruptions on the retention levels of virus filters, an increased focus is being placed on filter users’ own risk mitigation strategies. Users are increasingly requesting technical guidance and support with viral validation from filtration experts, as part of their overall product support package. This guidance document provides a high level of assurance to filter users by demonstrating how combining robust virus clearance technology with the use of standard operating procedures can assure a…

Sterile Vent Filtration on Ozonated Water Tanks

With many pharmaceutical processes requiring large volumes of water, it is critical that any pharmaceutical-grade water used is protected from particulate or microorganism contamination, in order to ensure that process operations do not become inadvertently contaminated. Several approaches can be used to ensure that water remains free from contamination, including the storage of purified water or WFI (Water For Injection) at a minimum temperature of 80°C to discourage microbial growth in the storage system. Another approach is to add ozone,…

Three Steps to Start You on the Path to Obtaining the Best Recombinant CHO Cell Line

When developing efficient, high quality biomanufacturing processes, it is imperative that the expression system (‘host cell line’ and ‘vector’) and the process to isolate and identify the best clonal cell line (‘clonal cell line development process’) are of the highest quality. At FUJIFILM Diosynth Biotechnologies a team of scientists has invested more than 20 FTE years undertaking innovation work which has culminated in the development of a new host cell line and vector, along with an optimised clonal cell line…