Direct Ink Writing 3D printing of Graphene-Based Pressure Sensor for Motion Monitoring

With the convergence and breakthroughs in frontier technologies such as communication systems and artificial intelligence, wearable electronics have entered a new phase of accelerated development. To achieve high-performance yet cost-effective flexible pressure sensors, the coordinated advancement of novel materials, innovative architectures, and advanced manufacturing techniques becomes imperative. This study presents a direct ink writing (DIW) 3D printed graphene -based micro-cone pressure sensor demonstrating an ultra-broad detection range (0-272.2 kPa) coupled with high sensitivity (2.83 kPa⁻¹ in 0-20.1 kPa regime). The device exhibits exceptional dynamic pressure response characteristics and achieves a low detection limit of 49 Pa. Practical validation through human motion monitoring confirms its capability in capturing biomechanical pressure signals, highlighting significant potential for real-time wearable health monitoring applications.