Fig. 1.

Cytotoxicity of silver nanoparticles in macrophages. (A) The cytotoxicity in U937 cells were assessed by CCK-8 assay. The LD₅₀ of 5-nm silver nanoparticles was 0.36 µg/mL. (B) Each inhibitors were treaetd 1 hour before exposure to 0.5 µg/mL of 5-nm silver nanoparticles.