E-tattoos could make mobile EEGs a reality

Scientists have developed conductive inks that can be printed onto a person's scalp to measure brain waves through hair. This breakthrough enables mobile EEG monitoring outside clinical settings. The technique uses printable biocompatible inks applied via microjet onto a moistened scalp, drying into a soft, stretchable film. This approach overcomes limitations of traditional EEG methods, potentially improving diagnosis of conditions like epilepsy and sleep disorders, and advancing brain-computer interface research.