Fig. 5. (a) Wound healing assay of SCC-15 cells treated with NS, blank hydrogel, free DOX, NanoDOX, and NDHM at a 16 μg mL−1 DOX concentration. The cells were imaged by an inverted microscope at 0 h and 24 h. (b) The quantitative analysis of the wound healing assay. Data represent means ± SD (n = 5), **P < 0.01, ****P < 0.0001.
