Figure 3.

A schematic representation of chondrocyte-laden silk–GMA hydrogel transplantation and endoscopic observation of rabbit trachea for 6 weeks after transplantation. (A) The DLP-printed artificial trachea (10 × 10 × 2 mm, W × D × H) with chondrocytes from rabbit ears, cultured for 1 week. (B) (a,b) Removal of part of the trachea (10 × 10 mm). (c) Artificial trachea implantation. Scale bars represent 5 mm. (C) Endoscopy of trachea after transplantation at 2, 4, and 6 weeks. The transplanted chondrocyte-laden silk–GMA hydrogel showed that the internal diameter gradually increased after transplantation and the surrounding tissues grew into the surgical part of the trachea at 6 weeks after transplantation [10].