This $600,000 project grant from the National Science Foundation's Engineering program (CFDA 47.041) will fund collaborative research between the University of South Florida and Princeton University from July 2022 to June 2025. The research aims to establish a predictive theoretical understanding of nanoscale gradients in rheological response at interfaces in glass-forming fluids. Specifically, the grant will support experiments to observe fluid flow and deformation at the nanometer scale, supercomputer simulations to visualize molecular movements underlying deformation, and development of a theory to explain materials' behavior at interfaces. Findings will help engineers design polymeric nanomaterials to control deformation and enable new technological advances in energy storage, water purification, and other applications. An outreach program will also expose diverse high school students to the experimental and computational research.