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. 2021 Nov 24;13(12):1994. doi: 10.3390/pharmaceutics13121994

Figure 3.

Figure 3

3D-printed scaffold containing graphene oxide (GO) for the cartilage layer construction. (a) Scheme of 3D-printed scaffold containing GO and chondrocytes (cells), (b) SEM and immunofluorescence in vitro evaluation of micro-GO presence in scaffold. The scaffold (in blue color) forms nets, in which micro-GO (in red color) and chondrocytes are localized. Micro-GO are flakes with length less than 100 µm. Toluidine blue and 1,1-dioctadecyl-3,3,3,3-tetram-ethylindocarbocyanine perchlorate (DiI; Sigma, St. Louis, MO, USA) were used to label micro-GO flakes within the scaffold. Adapted from [83], BMC, 2020.