Fig. 5
Cytotoxicity evaluation of membranes. Cell viability of a HaCaT cells and b NIH3T3 fibroblasts treated with leach liquor extracted from samples after 24 and 48 h. Corresponding cell morphology of c HaCaT cells and NIH3T3 fibroblasts after 48 h. d FACS results revealing the distribution of apoptotic and necrotic cells. Quantitative data for the percentage of e apoptotic cells and f necrotic cells for HaCaT cells, and the percentage of g apoptotic cells and h necrotic cells for NIH3T3 fibroblasts in each group. The values are shown as the mean ± SD (n = 3)