According to foreign media reports, a research team at Carlos III University in Madrid recently created a bio-printer that is said to be capable of 3D printing of functional human-like skin that can be used for research or skin grafting. It is reported that this bio-printer uses "bio-ink" composed of plasma, protein and skin cells. Researchers create skin by connecting computers and orderly depositing substances in a precise manner.
Researcher Juan Francisco delCañizo said: "Mastering how to mix materials, under what conditions will not damage the cells and proper deposition is critical to the system." This technique replicates the structure of the natural skin: the outer first layer - the epidermis It is used to protect the human body from external environmental interference. The deeper and thicker layer, the dermis, is made up of collagen-producing fibroblasts that provide elasticity and resistance to mechanical resistance.
If the skin is used for research purposes (for example, product testing and research for cosmetics or pharmaceuticals), any human skin cells can be used. If used for skin grafting, the patient's own skin cells are required. Researchers first need about two weeks to train in the lab. After that, the actual printing takes one to two days to complete.
This research paper was recently published in the online version of Biofabrication.
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