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Zetasizer Nano delivers essential data in environmental project

News & Views

Zetasizer Nano delivers essential data in environmental project

Aug 29 2012

Researchers at the University of Alberta, Canada, working as part of a major Canadian initiative to investigate the aquatic and environmental aspects of nanoparticles, are using the Zetasizer Nano from Malvern Instruments to characterise nanoparticle behavior in biological and aqueous matrices.

Size is known to affect nanoparticle toxicity and toxicology and the technique of dynamic light scattering (DLS) provides the average size behavior in solution. As implemented in the Zetasizer Nano, it delivers information for physical characterisation in terms of charge and solubility.

Professor Greg Goss is Director of the Office of Environmental Nano Safety (OENS) in the Department of Biological Sciences at the University of Alberta. “Dynamic light scattering is now recognised as a basic characterisation technique in this area of work and the regulators are familiar with the measurement, its results and limitations. In the past we’ve used TEM but this works better in conjunction with DLS since we can now study size in solution in a way that is simple to use and with only minimal need for sample preparation,” he said. “DLS is the only technique on campus that can provide size information in solution, without drying the samples.”

The Zetasizer Nano is particularly being used by this research group to study the interactions of particles such as silver, titanium, silica and polymer coated quantum dots.
 


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