In a breakthrough that is considered a history of neural technology, researchers at Cornell University (USA) successfully manufactured a brain transplant device smaller than a grain of rice.
This device, called a wireless opto order (MOTE), is a device that can record and transmit nerve data without a wiring or external power source.
According to Professor Alyosha Molnar, an electrical engineer at Cornell University, this is the smallest Neur transplant device ever created, powerful enough to measure brain electrical activity and transmit signals outward without causing tissue damage.
With a length of only about 300 microns and a width of 70 microns, equivalent to a human hair fiber, MOTE works by encoding nerve signals into infrared light pulses, transmitting them through tissues and bones to the outside bo phan.
The special feature of MOTE is the use of aluminum gali arsenide semiconductor diode (Al GaAs), a material that is both bright and self-consumed light energy for power generation.
This device transmits data using the pulse positioning control method, similar to technology in satellite communication, helping to save energy and minimize noise.
When planted in the brain's cortex, MOTE recorded the stability of nerve activity for more than a year, opening up opportunities for long-term application in medicine.
The device also eliminates major limitations of traditional electrodes, which can easily cause irritation, an immune response and are not compatible with MRI scans.
We want to create a technology small enough to minimize physical impact but still record brain activity with high accuracy, said scientist Molnar.
Not only limited to the brain, MOTE can also be applied in the spinal cord, peripheral nervous system or other sensitive tissues.
According to the research team, this technology is the foundation for the super small biological transplant generation, paving the way for non-invasive and long-term physiological monitoring in the future.
