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. 2019 Dec 12;8:239–248. doi: 10.1007/s40204-019-00121-3

Fig. 2.

Fig. 2

a Representative SEM images of the PCL/collagen electrospun matrices; b, c SEM images of freeze-dried PCL/CNF composite scaffolds, and e, d SEM images of PC-12 cells cultured on electrospun PCL/collagen nanofibrous scaffolds