A team of researchers from the United States of America have developed a measure through which 3D printed skin equipped with blood vessels is created. This discovery is considered an important step towards bioprinting. Tissues produced in this way may be very close to living tissues. Today, cells, their growth factors and other biomaterials are used to make biomedical parts through 3D printing.

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Pankaj Karande, an Indian-origin researcher who leads the researcher's team and an assistant professor at the Rensselaer Polytechnic Institute in the United States, said that the products (skin) we have for wound healing so far look like a fancy aid. Because it helps in healing the wound, but after that, it falls on its own. Its biggest problem is that it cannot be combined with body tissues. A study published in the journal Tissue Engineering Part A states that one of the reasons for this is that the skin does not have a 'vascular system', which helps in the continuous flow of blood and other nutrients into the skin and the skin can survive.

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Researchers found that if vital elements, including pericyte cells surrounding human endothelial cells, residing inside blood vessels, became sensitive, they were combined with the structural cells found inside the collagen and skin replica of the animal. When a team of researchers from America's Yale School of Medicine applied this structure to a particular type of mice, 3D-printed skin vessels became sensitized and began to attach to mice cells.

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