Lighting the future: 3D printing of smart and sustainable materials

<h2>Abstract</h2> Light-based 3D printing has revolutionized the way manufacturing is performed, by enabling the fabrication of highly precise and customizable 3D architectures with unprecedented levels of accuracy and design freedom. Beyond significant technological progress, recent years have seen considerable advances in the design of innovative materials that feature smart characteristics and address sustainable aspects such as biobased content and circularity. However, smart and sustainable material development are typically pursued separately, slowing progress in achieving systems that simultaneously fulfill both criteria. This review summarizes recent highlights and developments in both material design fields, laying the foundation for a holistic design strategy for next-generation materials.