Current Progress in 3D-Printed Sensors: Design, Application, and Future Challenges

As a subset of the Industrial 4.0 revolution, 3D printing is a machine that is closely monitored through data acquisition. It has gained significant attention in various applications, including prototyping and manufacturing, electronics, medicine, education, and sensing. One particularly important area of development is in 3D-printed sensors, which represent the next generation of sensor technology and have relevance in both research and industry. Commercial 3D printing materials and systems have recently been successfully utilized to fabricate these sensors, demonstrating their accuracy, efficiency, and maturity. This chapter focuses on the latest advances in 3D-printed sensor technology, examining the structure design, fabrication methods, performance, and applications across a wide range of fields. The authors recognize that material selection and functionalization methods with nanomaterials must be tailored to specific application requirements. Therefore, this chapter also discusses the integration of nanomaterials in the design of 3D-printed sensors, providing readers with greater insight into this next generation of sensor technology.