Malvern, UK: A new accessory for Malvern Instruments’ Zetasizer Nano particle characterization system allows users to measure the zeta potential of surfaces in an aqueous medium on a standard instrument. Malvern’s new surface zeta potential measurement cell eliminates the need to use the specialist technique of streaming potential, which requires instrumentation dedicated only to that measurement.

Particle zeta potential is widely measured as an indicator of the stability of colloidal systems. Studying surface zeta potential assesses the likelihood of material interaction with that surface.

Adding the surface zeta potential measurement capability to the Zetasizer Nano opens up new applications in areas of research that include understanding and optimizing surface coatings, studying biological materials such as teeth and bone, and evaluating the effect of environmental changes on polymers or glass. This information can be used to predict or modify the interaction of materials such as proteins binding to a contact lens surface or nanoparticles interacting with environmental samples such as rocks. A Malvern webinar on 4 October 2011 will explain this in more detail www.malvern.com/szpwebex

In addition to zeta potential measurements, the Zetasizer series measures particle and molecular size from below a nanometer to several microns, electrophoretic mobility, and molecular weight. For further information visit: www.malvern.com/zetasizer

Malvern, Malvern Instruments and Zetasizer 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