Recently, researchers at the University of Toronto have developed a handheld 3D skin printer that can apply skin tissue directly to the patient to cover and treat the wound.
The researchers said that during use, the 3D printer does not need to collect healthy skin from people, and can be used like a "bio-tape."
At present, many research teams have made achievements on the 3D printing skin project. Some research teams use plasma, protein and skin cells to form "bio-ink". After about two weeks of cultivation in the laboratory, bioprinting can be completed in one or two days.
In contrast, the 3D skin printer developed by researchers at the University of Toronto is very efficient. They said it was the first device that could form skin directly at the wound in less than 2 minutes.
It is worth noting that although the time is fast, they only say that they do not need to collect healthy skin from humans. What is specific, we still don't know.
However, in terms of printed materials, scientists are also trying to get rid of "native skin" and have already had initial results. At the end of last year, scientists used bacteria to create medical materials called cellulose, which can grow on the surface. In this way, the skin can be 3D printed with the ink material embedded in the living bacteria. In the future, when the skin has a wound, maybe we can fix it ourselves.
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