Optical Microrheology for Protein Solutions

Find out the benefits at ISFRS 2012

Malvern, UK: Dr Carlos Rega from Malvern Instruments, will present a talk at the 6th International Symposium on Food Rheology and Structure (ISFRS, Zurich 10-13 Apr, 2012) in which he assesses the benefits of optical microrheology for characterising protein solutions.

Dr Rega's presentation, 'Characterisation of viscoelasticity and dynamics in polymers and proteins using DLS microrheology' is based on a published paper which describes the use of a dynamic light scattering-based optical tracer microrheology method using the Malvern Zetasizer Nano system. Dr Rega and co-authors demonstrate that the elastic modulus G' emerges as a key parameter in understanding the nature of evolving microstructure during the onset of protein aggregation. Requiring only small volumes of dilute sample, this novel method provides a quick measurement technique for viscosity in protein solutions over an industrially relevant concentration range, and overcomes some inherent measurement limitations of mechanical rheometry for such sample types.

Malvern is also exhibiting at the meeting. Visitors to the company's stand can investigate both the Zetasizer Nano dynamic light scattering (DLS) system and the Kinexus rotational rheometer and discuss both optical and mechanical rheological methods directly with Dr Rega and other Malvern specialists.

The ISPRS symposium is held every three years and addresses the studies of rheology of food and related systems, food structure and structure analysis, and the complex relationships between food processing, structure, rheology and resulting food quality.

For additional information please visit: http://www.isfrs.ethz.ch/

To find out more about Malvern's dynamic light scattering systems and rheometers, visit www.malvern.com

Malvern, Malvern Instruments, Zetasizer and Kinexus are registered trademarks of Malvern Instruments Ltd.

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

USA contact:

Marisa Fraser, Malvern Instruments Inc.

117 Flanders Road, Westborough, MA 01581-1042, USA

Tel: +1 508 768 6400
Fax: +1 508 768 6403

Please send sales enquiries to:

Alison Vines, Malvern Instruments Ltd.

Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, UK

Tel: +44 (0) 1684 892456;
Fax: +44 (0) 1684 892789

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