Skin-like ultrasensitive strain sensor for full-range detection of human health monitoring

The development of strain sensors with high sensitivity and stretchability that can accurately detect different human activities such as subtle physiological signals and large-scale joint motions is essential for disease diagnosis and human health monitoring. However, achieving both high sensitivity and stretchability is still an enormous challenge at the moment, particularly for intrinsically stretchable strain sensor. Herein, utilizing large differences of micropatterned Au and SWCNTs in conductivity and stretchability, we present an ultrasensitive intrinsically stretchable strain sensor by one-step photolithography process. Its high sensitivity is inspired by spider’s slit organ, and the high stretchability is enlightened by spider’s neural pathway. The skin-like sensor exhibits many superior merits, including ultrahigh sensitivity (GFs of 7.1×104 to 3.4×106), wide detection range (up to 100% strain), excellent durability (10,00 cycles), ultralow limit of detection (0.1% strain), fast response (1.3 ms)...