Spray-On 'E-Tattoos' Revolutionize Brain Monitoring Technology

Researchers develop a biocompatible ink for temporary scalp tattoos that record brain activity, offering a less invasive alternative to traditional EEG methods.

The new e-tattoos use a liquid conductive ink that can be spray-printed directly onto the scalp, even through hair, to detect brain activity.
This innovation eliminates the need for traditional EEG electrodes, gels, and wires, which are often uncomfortable and time-consuming to apply.
The e-tattoos maintain stable performance for at least 24 hours, outperforming conventional electrodes that degrade after a few hours.
Developed by researchers at the University of Texas at Austin, the technology has been tested on volunteers with short hair and shows comparable accuracy to traditional EEG setups.
Future improvements could include wireless data transmission and adaptations for individuals with thick or curly hair, broadening its clinical and non-clinical applications.