Dynamic light scattering is a technique used to measure the size (average hydrodynamic radius) of nanoparticles dispersed in a liquid. The Malvern Instruments™ Zetasizer Nano™ determines nanoparticle size and charge from a single sample filled into a small cuvette. This instrument features a Multi Purpose Titrator which allows for measurement of the average zeta potential (surface charge) on the nanoparticles.