Search results for " fractionation"
Article
Impurity Testing of Biologic Drug Products
The commonly used analytical methods for characterizing these proteins include UV spectroscopy for concentration; SEC, analytical ultracentrifugation (AUC), and field flow fractionation (FFF) for aggr…
Article
Development of Purification for Challenging Fc-Fusion Proteins
A residence time of six minutes was maintained for the load, and wash phases with product fractionation at intervals.
Figure 2 presents the product recovery versus the level of LMWs with …
Article
Applications of Surface Plasmon Resonance for Detection of Bispecific Antibody Activity
Surface plasmon resonance is helping define bispecific antibodies, the next-generation of biopharma therapeutics.
By Robert Karlsson
Abstract
Biotherapeutic antibodies are still the larg…
Article
Optimizing Cation-Exchange Chromatography with High-Throughput Process Development for mAb Purification
Optimization of each phase in a chromatographic cycle has a positive impact on productivity.
By Anna Grönberg
An important area of focus for the biopharma industry is the elucidation and dev…
Article
Optimization of Protein Expression in Escherichia Coli
May 01, 2015
By Siavash Bashiri, David Vikström, Nurzian Ismail
BioPharm International
Volume 28, Issue 5
Production of proteins for manufacturing therapeutics and pharmaceuticals is a c…
Article
Detecting Protein Aggregates and Evaluating their Immunogenicity
Analytical ultracentrifugation (AUC) and asymmetrical-flow field-flow fractionation (AF4) are orthogonal methods to SEC, and are thought to provide a thorough picture of aggregate quantitation (3).
…
Article
Analyzing Proteins Using SEC, MALS, and UHPLC
Light scattering analysis combined with more rapid size exclusion chromatography improves protein characterization.
The characterization of proteins involves identification of their complex …
Article
HT Multi-Product Liquid Chromatography for Characterization of Monoclonal Antibodies
If used correctly, these new analytical methods can reduce analysis and product development time.
ABSTRACT
Monoclonal antibodies represent a significant portion of sales in the biopharma…
Article
Addressing the Challenges in Downstream Processing Today and Tomorrow
Newer classes of biotherapies will require innovations in processing technology.
By Glen R. Bolton, Bernard N. Violand, Richard S. Wright, Shujun Sun, Khurram M. Sunasara, Kathleen Watson, Johna…
Article
Dynamic Binding Capacity in Fiber-Based Chromatography
Fiber-based matrices for affinity purification is suitable for rapid-cycling chromatography. Fiber chromatography matrices such as Fibro PrismA can bind a large amount of protein in a frac…