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a) Schematic of light-triggered actuation of heat-responsive gel that serves as a cell culture substrate. Reproduced with permission.[15] 2017, Springer Nature. b) Bending and twisting of heat-responsive hydrogel is regulated by periodic gel stripes of varying crosslinking density oriented at different angles, enabling conforming around curved substrates, such as a hollow cylinder. Scale bar: 10 mm. Reproduced with permission.[16] 2017, John Wiley and Sons.
