Harvard researchers 4D print the face of a new class of shape-shifting materials

4D printed, shape-shifting structures hold significant potential for the future of engineering. Be it self-assembling trusses, or medical devices that help inform cell regeneration, the field still has many challenges to overcome before its possibilities become practical. Up to now, one of the greatest challenges to 4D printing has been the ability to create complex, smoothly-curved shapes. […]