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Comparative cytotoxicity of nanofibrous scaffolds.
Notes: Cell viability was determined by live/dead cell assay using calcein-AM (live) and propidium iodide (dead) (A–D). Representative images of control (A), SLS (B), FLS (C), and DLS (D). The viability of human dermal fibroblasts was evaluated using MTT assay (E). Scale bar denotes 1 µm.
Abbreviations: DLS, double layer nanofibrous scaffolds; FLS, first layer of scaffolds; SLS, second layer of scaffolds.
