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
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