Knitted multilayered-structure nanofiber yarn tendon scaffold as well as preparation and application thereof
A technology of nanofibers and electrospun nanofibers, applied in knitting, weft knitting, textiles and papermaking, etc., can solve the problems of inability to simulate the mechanical properties of natural tendon with fiber structure, so as to promote tendon repair and normal function recovery, and reduce inflammation Response and enhance the effect of mechanical properties of regenerated tissue
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[0051] Example 1
[0052] (1) Preparation of polymer spinning solution: Weigh 1.0g of P(LLA-CL) (75:25) (purchased from Jinan Daigang Biotechnology Co., Ltd.) with a molecular weight of approximately 80,000 and dissolve it in 10mL of hexafluoroisopropanol (Purchased from Shanghai Darui Fine Chemicals Co., Ltd.), mixed with 10% mass concentration of P (LLA-CL) spinning solution.
[0053] (2) Preparation of gelatin spinning solution: Weigh 1.2 g of cowhide gelatin (Ge) (Type A gelatin, purchased from Sigma-Aldrich, USA) and dissolve it in 10 mL of trifluoroethanol (purchased from Shanghai Darui Fine Chemicals Co., Ltd.) , Formulated into a gelatin spinning solution with a mass concentration of 12%.
[0054] (3) Preparation of double-layer nanofiber yarn: the PET yarn is placed in the electrospun nanofiber yarn preparation equipment as the core layer, and the P (LLA-CL) spinning solution in step (1) is sprayed on the opposite side, using rotation The hopper twists the P (LLA-CL) nanof...
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