As biotherapeutic modalities have diversified and production processes become more advanced, an evolution in purification strategies is also needed. Modern biotherapeutic purification must be capable of removing multiple types of impurities without compromising yield or quality, in a cost-effective manner. To meet these needs,many are turning to mixed-mode chromatography.
In nature, mammalian extracellular vesicles (EVs) are vital for intercellular communication, immune responses, and cell removal. EVs also hold promise in diagnostics, therapeutics, and vaccine delivery due to their abundance and natural role as carriers. Explore how overcoming challenges in EV purification and precise RNA analysis methods can help unlock their potential applications.
The current gold standard in monoclonal antibody purification for most researchers is affinity purification with Protein A or G followed by size exclusion chromatography (SEC). Although robust and highly effective, this workflow does have critical pain points and inefficiencies, leaving researchers to feel that they must oversee every step of their workflow, not leaving their chromatography system unattended for more than a few minutes.
Seychelle M. Vos, PhD,has a passion for science that was ignited at a young age while exploring her parents’ garden and the natural world around her. Now she studies some of the biggest questions in genome biology: how DNA structure and chromatin influence protein transcription. The molecular machines that physically couple transcription and DNA structure by changingthe position of nucleosomes, interfacing with chromatin, and compressing DNA into loops, are the focus of Vos’ research.
Dominique Ingato, PhD, is a faculty member at MiraCosta College’s Department of Biotechnology. As one of only fifteen community colleges in California to offer a bachelor’s degree, MiraCosta College’s bachelor’s program in biomanufacturing is breaking ground. As part of this program, Ingato runs a next-generation chromatography (NGC) teaching lab, where students receive practical, hands-on training using state-of-the-art instruments, such as the NGC Chromatography System.
Carter Mitchell, PhD, is a protein problem solver. As Chief Science Officer at Kemp Proteins, he helps academic and industry researchers develop a range of protein therapeutics, diagnostics, and molecular tools in milligram to gram quantities with bioprocess scale in mind. In this interview,we discussed how Kemp Proteins ensures delivery of high-quality processes and protein-based products to their clients, even when working with difficult proteins.
A new and simplified anion exchange chromatographic process for the purification of both live and inactivated cell grown H1N1 influenza viruses was established with a recently developed anion exchanger. The resin is designed with an optimized surface extender and pore size for superior accessibility and large biomolecule binding capacity,aiming to overcome common drawbacks of existing ion exchangers for virus purification.
For this article, we spoke with Vera Dreyfuss of evitria AG, an antibody expression services provider based in Switzerland, about the role that the NGC Chromatography System has played in powering the growth and success of the company.
Process development scientists, faced with an increasing number of proteins or complex biomolecules,continuously search for robust purification methods that can be rapidly scaled for manufacturing. What are the optimal purification conditions for high throughput and yield? Which resin or resin combination best purifies the desired protein? How can an efficient,yet cost-effective process be established? The answer: use a systematic screening approach. Read on to learn more.
Infectious diseases and cancers are among the main causes of human deaths worldwide. One successful avenue found to treat these diseases is the large-scale production of therapeutic proteins. As a result,the demand for protein expression hosts and accompanying advanced bioprocessing technologies has increased. Read about a workflow for efficient purification of a low-expressing recombinant protein using mixed-mode resins.
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