
- Graphene e-tattoos are wearable biosensors that stick directly to the skin
- Researchers are now developing patches that can read compounds in sweat
- These could indicate a range of conditions, as well as detecting stress
Invisible sweat sensors could one day be used to detect health conditions. That’s according to ongoing research at the University of Massachusetts Amherst, where a lab is developing stick-on graphene tattoos that can read and report on what’s in your sweat.