In his presentation "Nanoparticle sizing - Think of a number", Ciaran Murphy will review some of the more common sizing technologies indicating their capabilities and limitations in the light of the changing regulatory landscape. Nanotechnology-based products can provide superior performance attributes, and the size and size distribution of nanoparticles in a coating formulation has a large influence on its functional characteristics. (Nano) sizing characterization in general is drawing increasing interest from manufacturers and regulators with the former concerned about achieving the desired performance at appropriate cost and the latter concerned about toxicological impacts.
The Malvern Zetasizer series measures particle and molecule size from below a nanometer to several microns using dynamic light scattering, zeta potential and electrophoretic mobility using electrophoretic light scattering, and molecular weight using static light scattering. In addition the system can be connected to a GPC / SEC system to use as a chromatography detector. The system is available in a range of variants that enables selection of the best system for each specific application and budget.