In a first-of-its-kind development, scientists have made a liquid ink that can be printed onto a patient's scalp to monitor brain activity.
The standard electroencephalography tests are a cumbersome process. Patients must sit still for hours, their heads covered in wires and sticky electrodes.In the first-of-its-kind development, researchers have developed a liquid ink that can be printed onto a patient’s scalp to monitor brain activity in real time.
“Our innovations in sensor design, biocompatible ink, and high-speed printing pave the way for future on-body manufacturing of electronic tattoo sensors, with broad applications both within and beyond clinical settings,” said Nanshu Lu, the paper’s co-corresponding author at the University of Texas at Austin.EEG is widely used for diagnosing neurological conditions like seizures, brain tumors, and epilepsy. However, the traditional EEG tests are time-consuming and uncomfortable.
In this study, a computer algorithm was used to design the EEG electrode placement on the scalp. A digital inkjet printer then applied a thin layer of liquid ink to these spots, creating the e-tattoos. This process is fast, contactless, and painless.The e-tattoos proved to be just as good as the traditional electrodes at detecting brainwaves. Moreover, this technique was much quieter in the process.
E-Tattoo Inventions And Machines
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