Presentation Information
[3D10【招待講演】]Advancing 4D Printing of Soft and Wet Matter: From Bio-Inspired Robotics to Sustainable Food Systems
*Hidemitsu Furukawa1 (1. Yamagata Univesity)
4D printing introduces the dimension of time into additive manufacturing, enabling soft and wet matter such as polymer gels to transform their shape and functions in response to external stimuli. We present recent progress from fundamental hydrogel robotics to food applications and AI-driven design. Hydrogel actuators fabricated by 4D printing show programmable shape-morphing in aqueous environments, providing new possibilities for soft robotics and biomedical devices. Extending this concept, a multifunctional 3D food printer with a quad-screw nozzle achieves four-color printing and dual ink mixing, advancing personalized and sustainable food engineering. Moreover, we demonstrate a fast reverse design framework for voxelized 4D-printed structures using deep learning and evolutionary algorithms, enabling rapid optimization of adaptive soft-matter devices. These results highlight the trajectory of 4D printing from fundamental materials to practical and computationally guided applications.