This National Science Foundation (NSF) Faculty Early Career Development (CAREER) Program grant, awarded under the Engineering program (CFDA 47.041), supports fundamental research at Iowa State University to understand and control multi-material aerosol jet printing. This $621,008 grant, active from July 2024 to June 2029, aims to establish mechanistic knowledge and digital control of this printing technique to fabricate custom gradients in material composition and properties for applications in hybrid electronics, electromagnetic devices, electrochemistry, interfacial mechanics, and biomimetic structures. The research will evaluate mixing mechanisms across the aerosol, liquid, and colloid phases to improve printing uniformity and control. Alongside the core research, the award includes an outreach program to engage 4th-5th grade students in science and engineering concepts through interactive digital printing activities, and incorporate game- and project-based learning in undergraduate manufacturing engineering coursework to enhance workforce development.