Artificial leather will tell you when the prosthesis is damaged: bruises appear on it

Chinese scientists have developed a new material that they say will improve the performance of prosthetic devices.

devices and robotics.Artificial skin will allow them to recognize injuries in the same way as humans. The material uses a special gel that changes color in response to force. This way it imitates the process of bruising.

The authors of the new study used ion-conductive materials in their technology, rather than electrical conductors, which are not always compatible with the human body.

The new ionic organohydrogel contains a moleculespiropyran. Under mechanical stress, it changes color from pale yellow to bluish-violet. A special gel has become the mainstream of artificial skin called I-skin. It has already been tested by attaching it to various body parts of volunteers - fingers, hands and knees.

In the course of experiments, scientists have shown that theirI-skin flexes and stretches without bruising. But strong and repetitive pressing, bumping and pinching really changed the color of the material: purple remained on the surface of the artificial leather for two to five hours before it returned to its original color.

The study was published in the journalACS Applied Materials & Interfaces

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