The SUN lab studies how molecules behave, interact, and function at biointerfaces - the boundaries where biological, chemical, and environmental systems meet. These interfaces, such as cell membrane surfaces, polymer–water interfaces, and water–oil interfaces, play critical roles in cell biology, environmental processes, and industrial chemistry. We aim to understand and engineer molecular behavior at these interfaces, with the ultimate goal of informing new diagnostic and therapeutic strategies, advancing the design of soft biomaterials, and developing next-generation solutions for environmental sensing and remediation.