Temporary scalp e-tattoos that scan brain could replace traditional EEGs forever | Scientists have developed spray-on electronic tattoos that could be a game-changer in brain monitoring.

From the article: Researchers in Austin, Texas, are taking aim at an old but crucial tool for studying the human brain: the electroencephalogram, or EEG. For nearly a century, EEGs have helped scientists and doctors measure the electric pulses that fire through our brains, diagnosing everything from epilepsy to traumatic brain injuries. But they’ve always come with strings attached — literally.

Now, a team of scientists has introduced a stunning upgrade. They’ve created a liquid ink that can be sprayed directly onto a person’s scalp, forming an ultra-thin electronic tattoo. This “tattoo” EEG listens to the brain beneath it.

“Our innovations in sensor design, biocompatible ink, and high-speed printing pave the way for future on-body manufacturing of electronic tattoo sensors,” says Nanshu Lu, one of the lead researchers at the University of Texas at Austin. “It has broad applications both within and beyond clinical settings.”

The invention, detailed in the journal Cell Biomaterials, is being heralded as a potential game-changer, not just for brain monitoring but for the growing field of brain-computer interfaces—the futuristic devices that let people control machines with their thoughts.

I would so shave my head, get a tat and then let it grow back….

Now apply this ink as paint on a spaceship and now you can control it with your brainwaves.