Flexible printed analogic amplifier circuits are required in wearable sensors to enhance their sensitivity for application in various fields such as healthcare, artificial skins, and soft robotics. Various technologies have been proposed to develop wearable sensors for healthcare. However, the development of piezopolymer-based printed healthcare devices for monitoring human vital signs that simultaneously achieve high sensitivity and low operating voltage remains a challenging task. Here, a highly pressure-sensitive printed sensor with low operating voltage is demonstrated and applied to monitor human pulse wave velocity (PWV). The printed sensor consists of a 2 μm thick pressure detector and an organic analogic amplification circuit that are simultaneously formed on flexible substrates. The printed organic analogic circuit can amplify the generated signal by a gain factor of 10. This configuration makes it possible to combine good pressure sensitivity (∼10 kPa) with a low operating voltage of −3 V. We attached the sensor on the skin to efficiently monitor human vital signs using PWV to estimate health conditions.

Soft robotics machine interfaces are desirable for facilitating handling of objects in soft robotics applications. High‐speed responses of the interfaces are crucial for achieving statement conversions in novel robotics systems. Herein, a novel scheme for synthesizing a functional ink for producing fully printed soft pressure sensors that are highly responsive for detection of an applied vertical force is presented. The sensor consists of carbon nanotubes and polymeric soft materials, and achieves good response characteristics because of the microporous sensing layer. The fabricated sensor shows high performance for detecting forces with a high‐speed response. Novel wearable robotics machine interfaces for the printed soft sensor and a soft robotic hand are fabricated to facilitate object manipulation. The artificial sensor for a switching system demonstrates successful gripping and release of an object when controlled by a switch. Further, these findings show that the switching performance of the sensor is suitable for the machine interface for switching applications. This implies that the fabrication of a sensing system for remotely controlled soft robots is possible. Thus, high‐sensitivity printed devices for tactile machine interfaces in the form of a wearable e‐skin are experimentally demonstrated.

Soft Robotics Interfaces The fabrication of a novel synthesizing scheme for a functional ink and producing fully printed soft pressure sensors are reported by Tomohito Sekine, Shizuo Tokito, and co‐workers in article number http://doi.wiley.com/10.1002/aisy.202000179. The fabricated soft sensor shows high performance for detecting forces with a high‐speed response. Moreover, the system can be applied to wearable soft robotics machine interfaces.