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. 2018 May 30;22:16. doi: 10.1186/s40824-018-0126-x

Fig. 6.

Fig. 6

Representative optical images of the cell/fibrous matrices cultured on the PCL (control) and ND/PCL fibrous matrices (1 wt% ND concentration) for 1 and 7 days, followed by Alizarin Red S staining