Electrospinning nanofiber scaffolds for soft and hard tissue regeneration
Xianrui Xiea, Yujie Chena,*, Xiaoyu Wanga, Xiaoqing Xua, Yihong Shena, Atta ur Rehman Khana, Ali Aldalbahib,*(), Allison E. Fetzc, Gary L. Bowlinc, Mohamed El-Newehyb, Xiumei Moa,*()

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Fig. 23.. Macroscopic images of the cartilage joints from three groups at 6 (upper panel) and 12 (lower panel) weeks after surgery [82]. (A, D) Non-treated group, (B, E) collagen control group, and (C, F) bi-layered scaffold group.