fig3

Figure 3. (A) 3D morphable mesostructures as switchable radio frequency electronic components with shielding capability. (Reproduced with permission from Ref.^[143]. Copyright^© 2018. Springer Nature); (B) image of 4-by-4 interconnected helical 3D arrays with integrated micro LEDs, heaters, thermistors, and electrodes. (Reproduced with permission from Ref.^[51]. Copyright^© 2021. American Association for the Advancement of Science); (C) partially and fully folded 3D mesoscale saddle structures formed from a 2D copper precursor of concentric circles. (Reproduced with permission from Ref.^[144]. Copyright^© 2022. American Association for the Advancement of Science); (D) different bonding modes of 3D bilayer PI sheets consisting of two cross PI ribbons. (Reproduced with permission from Ref.^[145]. Copyright^© 2021. American Chemical Society); (E) images of 3D buckled structure in the shape of a table with different compressive strains. (Reproduced with permission from Ref.^[146]. Copyright^© 2019. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim); (F) mechanically stable and electrically tunable hemispherical small antennas. (Reproduced with permission from Ref.^[147]. Copyright^© 2019. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim); (G) a multimodal antenna consisting of four pairs of reconfigurable components. (Reproduced with permission from Ref.^[55]. Copyright^© 2020. American Association for the Advancement of Science)