25 October 2012: Malvern, UK: In a recently published article, researchers from Novozymes Biopharma (Nottingham, UK) and Malvern Instruments (Malvern, UK) describe collaborative work using light scattering techniques to demonstrate the short- and long-term stability of the novel recombinant human albumins Albucult® and Recombumin®. These rAlbumins have been developed and optimized to deliver a safe, stable and regulatory-compliant product for therapeutic formulations. The teams applied the resolving and detection capabilities of size exclusion chromatography light scattering (SEC-LS) and dynamic light scattering (DLS) offered by Malvern systems to monitor the stability of these Novozymes products. The article ‘Tools for evaluating the stability of human recombinant albumins used in human therapeutics’ can be accessed at www.malvern.com/formulation-development
Malvern Zetasizer systems
Both SEC-LS and DLS were found to be useful for the rigorous testing required to understand and confirm protein stability under various conditions. SEC-LS allows detailed characterization of the type of oligomers or aggregates present in samples of therapeutic proteins. DLS provides a rapid measurement that allows rapid comparison of a number of sample conditions and to indicate the presence of large aggregates and small oligomers or aggregates.
Malvern offers a growing range of systems for protein characterization. The Zetasizer Nano is one of the most widely applied systems for measuring particle size and molecular size using dynamic light scattering, and protein mobility (zeta potential) by electrophoretic light scattering, while the Zetasizer APS offers robust, simple to operate, dynamic and static light scattering and automates the measurement of samples in industry standard 96- or 384-well plates. The Viscotek TDAmax is a complete, research grade, temperature controlled, multi-detector SEC system suitable for the molecular weight and molecular size determination of proteins and other macromolecules. For more about Malvern’s range of systems for protein characterization go to http://www.malvern.com/labeng/industry/protein/proteins.htm
Novozymes' animal-free, recombinant albumin (rAlbumin) range helps pharmaceutical drug and medical device manufacturers deliver safe and affordable product improvements in a variety of applications. Further information can be found at: www.biopharma.novozymes.com
To read ‘Tools for evaluating the stability of human recombinant albumins used in human therapeutics’, visit www.malvern.com/formulation-development
About Malvern Instruments
Malvern Instruments is a market leader in measuring performance controlling material properties. These include particle size, particle shape, zeta potential, molecular weight, size and conformation, rheological properties and chemical identification. Malvern delivers the systems, support and expertise that ensure the analytical integrity and productivity needed to drive research, development and manufacturing.
Malvern’s measurement solutions for scientists, technologists and engineers advance continually through customer collaboration. Complementary materials characterization systems deliver inter-related measurements that reflect the complexities of particulates and disperse systems, nanomaterials and macromolecules. Combining intelligently implemented technologies with in-depth industry applications knowledge and support, Malvern provides customers with the competitive advantage they demand.
Headquartered in Malvern, UK, Malvern Instruments has subsidiary organizations in all major European markets, North America, China, Japan and Korea, a joint venture in India, a global distributor network and applications laboratories around the world. www.malvern.com
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