 Recent years have seen many advancements in light scattering technologies for particle characterization.For submicron particle measurement, dynamic light scattering (DLS) has now become an industry standard technique.This method analyzes the fluctuations of scattered light by particles in suspension when illuminated with a laser to determine the velocity of the Brownian motion, which can then be used to obtain the hydrodynamic size of particles using the Stokes-Einstein relationship.