August 2019
Vol 5, Issue 8

About The Cover

Cover image expansion

ONLINE COVER While human machine-interfaces have improved in recent years, making truly wearable versions that perform multiple functions—while enabling highly efficient communication between humans and machines—has remained challenging. Sim et al. develop an ultra-thin electronic device that can directly guide a robot hand with signals collected from the user’s muscles, enabling the human to feel what the robot experiences. The design consists of an easy-to-manufacture nanomembrane made from indium zinc oxide that is almost imperceptible when worn and maintains its function when human skin is stretched or compressed. Sensors made from this material could be designed to monitor UV exposure (to mitigate skin disease risk) or to detect skin temperature (to provide early medical warnings), while still functioning well under strain. [CREDIT: CUNJIANG YU]