Scientists from Cornell University in the United States and Nanyang Technological University in Singapore jointly published a paper in the journal Nature Electronics, announcing the development of a neural implant called MOTE, which is smaller than a grain of salt. This device, measuring approximately 300 micrometers in length and 70 micrometers in width, utilizes aluminum gallium arsenide semiconductor diodes and is powered by red and infrared laser beams. It can continuously transmit brain activity data wirelessly from within a living animal for over a year. MOTE employs pulse position modulation encoding technology to achieve efficient optical data transmission with extremely low power consumption, and it can simultaneously collect brain electrical signals during magnetic resonance imaging scans. This technology is expected to be expanded for future applications in other tissues, such as the spinal cord.