Wearable Textile Supercapacitors for Self-Powered Enzyme-free Smartsensors.

Wearable energy storage and flexible body biomolecules detection are two key factors for real-time monitoring human healthcare in the practical fields. It would be rather exciting if one wearable system could carry out both energy storage and biomolecules detection. Herein, carbon fiber-based NiCoO2 nanosheets coating with nitrogen doped carbon (CF@NiCoO2@N-C) have been prepared via a simple electrochemical deposition method. Interestingly, being a dual-functional active material, CF@NiCoO2@N-C performs excellent behaviors as supercapacitors and prominent electrocatalytic properties as enzyme-free biosensors. There exhibits outstanding energy storage of high capacitive stability (94% capacitive retention after 10000 cycles), preeminent flexible ability (95% capacitive retention after 10000 bending cycles), as well as high sensitivity of enzyme-free glucose detection (592muAmM-1). Moreover, the CF@NiCoO2@N-C based wearable supercapacitors would be used as self-powered energy systems for enzyme-free biosensors. Integrating with Bluetooth, we have successfully developed the wearable self-powered enzyme-free smartsensors, remotely controlled by a smartphone for healthcare in the practical environment. In prospective studies, the design of wearable self-powered smartsensors, a demo of energy storage and enzyme-free biosensors in one system, provides a promising method in detecting body biomolecules and potentially implemented in the artificial intelligent fields.