| Wearable devices have attracted tremendous attention for their versatile potential applications in electronic skins,soft robots and personal healthcare monitoring.Traditional electronic devices are rigid without the ability of flexible.However,it is difficult for traditional electronic devices to fix on human skin due to the flexibility of the human skin.Thus,it limits the application of traditional electronic devices when they are used for human.Herein,a conductive,self-healing,adhesive and long-lastingly moist nanocomposite organohydrogel is prepared according to the research status of flexible wearable sensors.The details are as follows:1.A conductive,self-healing,adhesive and long-lastingly moist MXene nanocomposite organohydrogel is prepared from the conformal coating of MXene nanosheet network by the polymer networks of dopamine grafted sodium alginate(Alg-DA),phenylboronic acid grafted sodium alginate(Alg-PBA)and polyacrylamide(PAAm)with a glycerol/water binary solvent as the dispersion medium.The obtained MXene nanocomposite organohydrogel exhibits excellent self-healing capability,superior self-adhesive performance and long-lasting moisture retention(10 days).Furthermore,the MXene nanocomposite organohydrogel can be assembled as a wearable epidermal sensor to detect human motion including large deformation(finger bending and wrist bending)and tiny deformation(swallowing,breathing,and pulse)with durable stability.Meanwhile,the assembled epidermal sensor could be employed to monitor human activities wirelessly via connecting a wireless transmitter.This work sheds new light on the development of the flexible,self-healing,adhesive and long-lastingly moist epidermal sensors and electronic skins for personalized healthcare monitoring,human-machine interfaces,and artificial intelligence.2.A conductive,self-healing,adhesive and transient MXene nanocomposite organohydrogel is prepared from the conformal coating of MXene nanosheet network by the polymer networks of dopamine grafted sodium alginate(Alg-DA),phenylboronic acid grafted sodium alginate(Alg-PBA)and polyacrylamide(PAAm)via a solvent replacement method.The MXene nanocomposite organohydrogel can be assembled as a wearable epidermal sensor to detect human motion.Meanwhile,the assembled epidermal sensor could be employed to monitor human activities wirelessly via connecting a wireless transmitter.The nanocomposite organohydrogel sensor is expected to be used in the fields of personalized medical monitoring and health medical diagnosis. |
