Recent advances in nanomaterials for wearable devices: classification, synthesis, and applications.

Wearable devices have a wide range of applications in mobile electronics, energy storage, human movement and health monitoring due to their flexibility, comfort and portability. Nanomaterials have excellent electrical conductivity and mechanical properties due to being in the nanoscale range with small size and surface effects that alter electrical properties. This paper focuses on the progress of research on advanced nanomaterials in the wearable field, including the classification of nanomaterials, physical, chemical, microwave-assisted, and biological synthesis for nanomaterials, as well as spinning, textile coating, and three-dimensional printing of fabricating functional layers of nanodevices. In addition, its importance in thermal management devices, telemedicine and monitoring, assistance for the disabled and mental health and sleep monitoring is analyzed. Finally, the current challenges and future directions of the field are discussed. This review will be of great interest and inspiration for developing and improving novel nanomaterials and advanced wearable nanodevices.