yuan4d | Slot, Slot on, Game desn

yuan4dFour-dimensional (4D) printing ceramics is a challenge due to their weak deformability. Here, the authors report a hydrogel-dehydration-driven direct 4D printingDuring the past few years, some review papers give comprehensive summary of the advances in 4D printing from different viewpoints including printing material [3, 4, 8, 10],