Preparation method of double-layer tissue engineering skin comprising basement membrane structure
A technology of tissue engineering skin and double-layer tissue, which is applied in the field of basement membrane formation between the dermis and epidermis, can solve the problems of high research standards and inapplicability, and achieve the effect of improving performance and maintaining integrity
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[0025] The following is a preparation example of tissue-engineered skin containing basement membrane structure compound chitin, but the method of the present invention is by no means limited to the preparation example given.
[0026] First, add a calcium chloride solution with a concentration of 6M to the DMEM medium, adjust the calcium ion concentration to 1.85mM, then add a laminin solution with a concentration of 200μg / ml, adjust the concentration of laminin to 20μg / ml, and prepare the obtained tissue Engineering skin culture medium; mix collagen acetate, chitin, hyaluronic acid and elastin in a weight ratio of 16:2:1:1, adjust the pH value of the gel solution to 7.2 with 1N sodium hydroxide, and prepare gel Gel solution 20ml; add fibroblasts 1×10 to the gel solution 6 , mix well; inhale into the culture dish, after 15 minutes, gently add keratinocyte suspension 1×10 6 , and finally add 8ml of the prepared tissue engineering skin culture medium, place at 37°C, 5% CO 2 Cul...
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