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Figure 3. 4D-printed soft microbots based on LCEs and stimuli-responsive hydrogels. (A) LCE actuation mechanism. Reproduced with
permission from Ref. [80] . Copyright 2015, Elsevier; (B) 4D-printed continuous fiber-reinforced LCE composite for programmable folding,
high-force actuation, and electrical deformation. Reproduced with permission from Ref. [81] . Copyright 2024, Springer Nature; (C)
Monolithic LCE robot with snap-trained self-sustained motion for switchable rolling and jumping with light-steered control. Reproduced
with permission from Ref. [82] . Copyright 2024, Wiley-VCH; (D) Multi-material LCE lattices with spatially programmed director fields for
predictable reversible morphing via inverse design. Reproduced with permission from Ref. [83] . Copyright 2024, Wiley-VCH; (E) Stimuli-
responsive hydrogels actuation mechanism. Reproduced with permission from Ref. [77] . Copyright 2022, Wiley-VCH; (F) DLP-printed
