It is not easy to study the secrets of the deepest part of the human brain. However, if you send a tiny micro-nanobot to your brain to explore, you may find it helpful. This is a whimsical but tempting idea. However, the question is how to command the movement of these micro-robots.
A research team from the National Technical University of Athens has proposed the use of bat sonic positioning and hunting to direct the movement and positioning of nanobots, and last month at the IEEE Medical and Biology in Orlando, Florida, USA The IEEE Engineering in Medicine and Biology Society met with a report on computer simulations, saying that only four micro-robots can locate a small tumor within minutes.
Engineers all over the world are committed to the development of a wide variety of nanobots, especially robots with controlled release of drugs in the human body. However, the Panagiotis Katrakazas research team from the National Polytechnic University of Athens is more interested in using nanobots to detect brain lesions that are hard to find deep in the brain.
Katrakazas said, "The whole idea is to inject nanobots into the human body, use the nanobots' movement in the brain to find the exact location of the damage, and later use drugs or surgery to treat the damage." The Katrakazas team is currently studying neurons along the way. The crawling nanobots and nanobots will judge whether they are healthy by “pinching†neurons: healthy neurons respond with electrical signals, while damaged neurons do not.
However, the biggest challenge is how to make nanobots work together. Katrakazas thought of an algorithm that describes the behavior of a bat colony, which was established by other researchers based on bats emitting sound signals to navigate and hunt for food. The Katrakazas team has now applied the algorithm to a device similar to the EEG (Electroencephalography Scanner) to simulate the bat's way to send acoustic signals to the subject wearing the device.
The team hopes to use this acoustic signal to navigate the brains of micro-nano robots, saying that it has been tested using simulations. However, there is still a long way to go before such "bat" nanobots are tested in humans.
Roderich Gross from the University of Sheffield in the United Kingdom believes that the first question is whether it is currently clear which technology will enable such miniature robots to perceive and emit sound signals.
Katrakazas said that she still expects a set of such systems to be used in human experiments in a few years time, saying that “already some doctors have expressed interest in thisâ€.
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