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. 2020 Aug 14;15:6097–6111. doi: 10.2147/IJN.S249829

Figure 2.

Figure 2

TGF-β1 mimicking peptide with surface modified nanofibrous PLLA microspheres induced stem cell chondrogenesis. (A) SEM images of surface modified nanofibrous microspheres. (B) A cross-sectional confocal image of FNF-HMS after fluorescent tagging of the conjugation sites. (C) Positive safranin-O staining for GAG in CM10-FNF-HMS/BMSCs group after 2 weeks subcutaneous implantation. (D) Positive immunohistochemical staining for collagen type II in CM0-FNF-HMS/BMSCs group after 2 weeks subcutaneous implantation. Scale bar: 100 µm.

Notes: Reprinted from Zhang Z, Gupte MJ, Jin X, Ma PX. Injectable Peptide Decorated Functional Nanofibrous Hollow Microspheres to Direct Stem Cell Differentiation and Tissue Regeneration. Adv Funct Mater. 2015;25(3):350–360. Copyright 2015 with permission from John Wiley and Sons.84