Spray-based Additive Manufacturing Cold Spray Additive Manufacturing Cold spray additive manufacturing is a transformative advanced manufacturing technique by using supersonic kinetic energy to deposit functional materials. Aerosol Jet Printing Aerosol jet printing holds significant importance in precise and high-resolution material deposition for applications like flexible electronics, sensors, and printed circuit boards. Polymer Metallization Polymer Metallization Polymer metallization is a crucial technology that bridges the gap between the diverse properties of polymers and the desirable electrically conductive attributes of metals. Printed Electronics Printed Electronics Printed electronics are central in driving technological progress and revolutionizing industries. Their flexibility unlocks novel applications in healthcare, consumer electronics, and beyond. Energy Devices and Smart Sensors Energy Devices and Smart Sensors Energy devices are central to today's technology. Meanwhile, smart sensors act as the sensory network of our connected world, gathering and analyzing real-time data in diverse domains.