fig6

Figure 6. LM-based strain sensors. (A and B) An LM-based multilayer tattoo integrated with stretchable strain sensors can preciously monitor the hand movements in real time. Reproduced with permission^[118]. Copyright 2021, American Association for the Advancement of Science; (C) Breathing monitoring by a self-powered triboelectric fiber featured strain sensor with six embedded electrodes and surface texture. Reproduced with permission^[92]. Copyright 2020, Springer Nature; (D) LM-based and nacre-inspired strain sensors, the brick-and-mortar architecture can control the micrograph of cracks; thus, the sensitivity was increased by about two orders of magnitude. Reproduced with permission^[94]. Copyright 2021, John Wiley and Sons; (E) Resistance response, microstructure characterization, and sensitivity comparison of a high-sensitive 3D-structured LM strain sensor. Reproduced with permission^[120]. Copyright 2023, All authors. Ga: Gallium; GF: gauge factor; LM: liquid metal.