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Fluorescent images of the four kinds of cells that were cultured on the optimised nanofibrous meshes after five days. The images showed the proliferation and spreading of four kinds of cells (i.e., MCF-7 cells, NIH-3T3 fibroblast cells, SAS cells, and melanoma cells) which supported the biocompatibility of PCL nanofibrous meshes. The scale bar is 50 μm.
