This special issue investigates the integration of renewable, bio-based polymers into advanced bioprinting modalities to catalyze progress across biomedical, robotic, and electronic domains. Emphasizing sustainable material development, the issue explores novel bioinks derived from environmentally friendly polymers, optimized for compatibility, mechanical resilience, and functional performance. It highlights innovative bioprinting techniques, including inkjet, extrusion, and laser-assisted methods, tailored to fabricate complex, functional structures with applications extending from regenerative medicine and disease modeling to next-generation soft robotics and flexible electronics.

Furthermore, the issue delves into the utilization of these eco-friendly materials for creating smart, adaptive systems, encompassing bioelectronic components, data security devices, and micro-robotic platforms. Interdisciplinary approaches are emphasized to address challenges in process scalability, material functionalization, and real-world translation. Contributions demonstrating scientific rigor and practical relevance in deploying sustainable polymers for biomedical devices, soft actuators, secure data encryption, and electronic interfaces will redefine the landscape of eco-conscious manufacturing and intelligent systems.