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Survival rate of keloid and normal fibroblasts after exposure to emodin-loaded liposomes (ELP; 100 μm emodin), or silk-fibroin-coated, emodin-loaded liposomes (SF-ELP; 100 μm emodin). SF-ELP significantly decreased survival rate on keloid fibroblasts after 4 hours (p < 0.05) and 24 hours (p < 0.001) compared with exposure to ELP. Normal fibroblasts survival rate decreased in the presence of SF-ELP but to a lesser extent.
