Gerold A. Willing is an Associate Professor in the Chemical Engineering Department at the University of Louisville. Dr. Willing's expertise lies in the development of complex fluid systems for practical applications and characterization of their stability. He is the first person to directly measure the interaction forces in complex fluids with a bimodal particle size distribution using the Atomic Force Microscope. He received a BS in Chemical Engineering from the University of Wisconsin-Madison and a PhD in Chemical Engineering from Auburn University. Prior to joining UofL, he spent 3 years at Argonne National Laboratory as a Postdoctoral Research Associate.