Citation:
Dong Y, Wang S, Ke Y, Ding L, Zeng X, Magdassi S, Long Y. 4D Printed Hydrogels: 4D Printed Hydrogels: Fabrication, Materials, and Applications (Adv. Mater. Technol. 6/2020). Advanced Materials Technologies [Internet]. 2020;5 (6) :2070037 - 2070037.