Figure 3
From: Noxic effects of polystyrene microparticles on murine macrophages and epithelial cells
Cell metabolic activity after 24 h and 72 h in the presence of MPP. The metabolic activity was determined using the MTT assay in correlation to cells without particles acting as negative control. Data represent mean ± SD, n = 3 biological replicates. Particle sizes: black square = 0.2 µm, orange circle = 0.5 µm, blue triangle = 1 µm, green down-pointing triangle = 2 µm, yellow diamond = 3 µm, purple left-pointing triangle = 6 µm.
