“…[19][20][21][22] To solve the possible nonlinear response of these sensors within a wide detection range and the large hysteresis behavior caused by an irreversible change to the conductive pathway, the microstructure on the piezoresistive strain sensors' conductive pathway was subtly designed. Thus far, various micro-structured exible substrates and nano-ller based strain sensor systems have been designed to improve the sensitivity and response range of exible strain sensors, including bers, 23,24 wrinkles, 25,26 arrays, 27,28 foams, 29,30 textiles, 31,32 papers, 33,34 and electrospinning lms, 35,36 among others. While this strategy has proven to be promising in improving performance, the construction of a complex nano-micro structure could not only complicate the preparation of the device but also render the realization of mass production challenging.…”