Tiny new brain implant monitors activity wirelessly

Scientists have achieved a medical milestone with the development of the Microscale Optoelectronic Tetherless Electrode, or MOTE.

About the size of a grain of salt, this tiny device is revolutionizing how we study the brain.

Unlike traditional brain implants that require bulky wires and batteries, the MOTE is completely wireless.

It is powered by external infrared lasers that pass through the scalp and skull, converting light into electricity.

To send information out, it uses a sophisticated communication method called pulse position modulation.

Because the device is so small and moves naturally with brain tissue, it significantly reduces the risk of inflammation and long-term scarring.

Co-led by researchers at Cornell and Nanyang Technological University, this innovation overcomes a major hurdle in neuroscience: monitoring neural activity long-term without infection or mechanical trauma.

While not yet ready for humans, this tiny tech opens doors for future monitoring of the brain, spinal cord, or heart, potentially transforming clinical diagnostics.