Tech

Soft electronic skin mimics the way human skin perceives things

It was created by a team of researchers from Stanford University, who implanted soft electronic skin electrodes into the brains of mice and recorded electrical signals from the animals’ motor cortex, the area of ​​the brain responsible for make voluntary movements. The animals twitched their legs in response to different levels of pressure recorded by the brain, depending on the intensity of the stimulus frequency, demonstrating that the electronic skin can detect different levels of pressure in the same way. in the same way that animals and humans can. normally.

The team says this work could lead to better prosthetics and could help create robots that can sense human-like sensations. The study was published in an article in Science Today.

“Our dream is to create a complete hand, where we have multiple sensors that can sense pressure,” said Zhenan Bao, a professor of chemical engineering at Stanford University who was involved in the project. pressure, tension, temperature and vibration. Then we will be able to provide a real kind of sensation.

The lack of sensory feedback is one of the main reasons people stop wearing prostheticsbecause it can make the user feel annoyed.

While previous electronic skins used soft sensors to sense touch, they were forced to rely on external hardware components to convert them into a measurable electronic signal. Such systems tend to restrict people from moving naturally. This new e-skin is completely soft, which can help avoid that problem.

Silvestro Micera, associate professor of neuroengineering at the Swiss Federal Institute of Technology, said: “The fact that the e-skin is thin, soft and uses little energy makes it an exciting prospect for those who want to use it. working in the field of prosthetics. not working on the project.

“We had to see it integrated into a real prosthetic,” he said. “That’s clearly the next step.”



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