title: Purifying biopharmaceuticals: knowledge-based chromatographic process development.
abstract: The purification of biopharmaceuticals is commonly considered the bottleneck of the manufacturing process. Increasing product diversity, along with growing regulatory and economic constraints raise the need to adopt new rational, systematic, and generally applicable process development strategies. Liquid chromatography is the key step in most purification processes and a well-understood unit operation, yet this understanding is still rarely effectively utilized during process development. Knowledge of the composition of the mixture, the molecular properties of the solutes and how they interact with the resins are required to rationalise the design choices. Here, we provide an overview of the advances in the determination and measurement of these properties and interactions, and outline their use throughout the different stages of downstream process development.
authors.affiliation: Department of Biotechnology, Delft University of Technology, Delft, The Netherlands.
authors.forename: Alexander T
authors.initials: AT
authors.lastname: Hanke
authors.affiliation: Department of Biotechnology, Delft University of Technology, Delft, The Netherlands. Electronic address: m.ottens@tudelft.nl.
authors.forename: Marcel
authors.initials: M
authors.lastname: Ottens
mesh_terms: D001709:Biotechnology; D002853:Chromatography, Liquid; D019295:Computational Biology; D057166:High-Throughput Screening Assays; D051188:Knowledge Bases; D011506:Proteins / Q000302:isolation & purification*
chemical_list: D011506:Proteins
keywords: chromatography; high-throughput; host cell proteins; mathematical modelling; process development