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SEM microphotographs of mesenchymal stem cells (MSCs) attached on PLCL (A) and PLCL/chitosan (B) scaffold taken 16 h postseeding. Arrowheads refer to regions of scaffold surface devoid of cells, and arrows refer to attached cells. Alamar blue assay (C) for proliferation of MSCs cultured on PLCL (white bar), PLCL/chitosan (gray bar) scaffolds at 1, 3, 5, and 7 days.
