Figure 5From: Exposure of silver-nanoparticles and silver-ions to lung cells in vitro at the air-liquid interface Protein secretion of pro-inflammatory cytokines TNF-α and IL-8. The extracellular release of pro-inflammatory markers (ng/mL) TNF-α (A and B) and IL-8 (C and D) were analysed by ELISA 4 h (grey bars) and 24 h (black bars) after exposure. Error bars represent the SEM for at least 3 independent experiments.Back to article page