“…Conductive nanofillers mainly include metal nanomaterials (silver nanoparticles, [17] silver nanowires, [18] ), carbon nanomaterials (carbon black (CB), [19] carbon nanotubes (CNTs), [20,21] graphene [22,23] ), and intrinsically conductive polymers (polythiophene, [24] polyaniline, [25] polypyrrole [26] ). In addition to researching more new materials to improve the property of the sensor, microstructure designed such as porous structure, [27,28] hollow-sphere microstructure, [29] micropyramid array, [30] fractured microstructure, [31][32][33] and interlocked microstructures [34] are also considered as an effective strategy. Although these reported sensors have high sensitivity and good flexibility, generally majority can only effectively realize only one function (stretching or compressive strain).…”