A Novel Analysis Method for Structures and Properties of Soft Materials by Ultrasound

Abstract

We have developed a dynamic sound scattering（DSS）technique utilizing high frequency ultrasound pulses in order to provide a novel analysis method for optically turbid microparticle suspensions. By using the technique, the particle size and the hydrodynamic interactions were evaluated for the micron-sized particles dispersed in a liquid without drying nor dilution of the sample. Since the technique allows us to visualize the structure of the particles in the suspension thanks to the phase information of the scattering pulse, it could be a promising technology to understand the microstructures in highly turbid suspensions by online monitoring of the sample in the manufacturing process.