Figure 1From: Effect of amorphous silica nanoparticles on in vitro RANKL-induced osteoclast differentiation in murine macrophages Effect of silica particles on cytotoxicity. The cytotoxicity of RAW264.7 cells after incubation with nSP70, nSP300 or mSP1000 for 5 days was evaluated using the WST-8 assay. The percentage increase in cytotoxicity was calculated relative to the negative control. Data are expressed as the mean ± SD (n = 3). *P < 0.05, **P < 0.01 vs non-treated.Back to article page