Cornell University Researchers Develop Tiny Wireless Brain Implant Called MOTE

Researchers at Cornell University have developed a miniature brain implant called <b>MOTE</b> (Microscale Optoelectronic Tetherless Electrode). This device, which is smaller than a grain of salt, successfully functioned in the brains of living animals for one year without complications. The wireless chip measures 300 microns in length and 70 microns in width. It operates without batteries or wires, instead using <b>red and infrared laser beams</b> for power. The device records electrical signals from neurons and transmits them as infrared light pulses using pulse position modulation, a technique adapted from satellite optical communications.