According to foreign media reports, “The Matrix” may become a reality! Currently, researchers at the Massachusetts Institute of Technology in the United States have developed a new thin fiber material, which is less than the diameter of a hair, to form a human-machine interface to connect the human brain and computers. together.
The system can deliver light signals and drugs directly to the brain, and continuously monitor the effects of various input signals based on electronically read data. “We are building a neural interface that interacts with brain tissue in a more organic way,” said Polina Anikeeva, associate professor of materials science and engineering at MIT.
Traditional neurodetection devices record one type of signal, limiting the time it can be delivered to the brain. Now, MIT scientists may have found a way to change this approach. By creating a complex fiber less than the width of a hair, the material could create a neural interface system that could deliver light signals and drugs directly to the brain. The new research was published in a recent issue of the journal Nature Biotechnology.
This new type of fiber is made of polymer material and has characteristics similar to nerve tissue. Polina said that the material can stay in the human body for a longer time without damaging the surrounding delicate tissue structure. The polymeric fibers are even softer than human nervous tissue and look more realistic.
Current equipment used to record and stimulate neural tissue is made of metal, semiconductor, and glass materials, which will damage body tissue to varying degrees when used. This is a thorny problem in nerve repair surgery. The current key technology is to create a larger-sized neural interface and use this fiber to create channels, such as optical waveguide fibers to carry light, hollow tubes to transport drugs, and conductive electrodes to carry electrical signals.
Light is transmitted through this optical channel to achieve optogenetic neural stimulation, and the resulting effects can be monitored by embedded electrodes. At the same time, one or more drugs can be injected into the brain through the hollow channel, during which the electronic signals of nerve cells can record the drug response in real time.
MIT researchers believe that this unique implant can deliver light signals and drugs to the brain without damaging brain tissue.
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