Artificial electronic skin instead of dermal transplant? Perhaps soon, this will become a reality, no longer an idiotic dream.
In recent years, researchers in the United States, Japan, Germany, and China have developed electronic skins with subtle touch, and have solved technical problems such as interactivity and extensibility. Scientists assert that in addition to medical skin grafting, electronic skin can be used in robotics, wearables, artificial intelligence and other fields.
Say goodbye to "the pain of skin"
In ancient Asia and Europe, the history of “cutting the wounds and acne†was nearly 2,500 years old, but considering the medical and anesthetic levels at the time, it seems to be a form of torture. Modern skin grafting surgery first appeared in the late 19th century. The data show that the number of patients receiving skin transplants in the world is nearly 200,000 per year, and there are more than 4 million patients with irreversible skin trauma and who have not undergone skin graft surgery.
Unrepairable damage to skin tissue, skin grafting is almost the only option given the physical rejection. The doctor mainly relies on cutting the patient's own skin or other people's skin for transplant repair. It is difficult to bear the pain and will leave new wounds on the patient's skin. The wounds of the body and mind are often indelible.
In addition, the source of skin grafting in patients with large areas of skin damage is also a problem. The skin after transplantation is very fragile, and there are sequelae such as reduced touch and decreased immunity. The ultra-simulated electronic skin model is maturing with the efforts of scientists from various countries. If put into human trials, this will be the gospel of patients.
Super simulation is not a dream
Electronic skin simulation, reduction and even replacement of the skin of the body must first have the feeling and touch, that is, the same basic pressure as the human skin, and the most basic function of conducting the tactile signal.
As early as 2003, the research team at the University of Tokyo in Japan used a low-molecular organic substance, pentacene molecule, to form a film, and through its surface-mounted pressure sensor, realized the electronic skin sensing pressure.
After a lapse of two years, the research team overlapped the two sets of transistors that sense pressure and temperature in a special plastic film. Using microsensors to record current fluctuations at the intersection of the transistor wires, the daily temperature and 300 grams per square centimeter can be judged. Above the pressure. In addition, this electronic skin cost is quite cheap, only 100 yen (about 1 US dollar) per square meter.
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