Figure 4.

Hsp70 protein levels after 24 h exposure. *p < 0.05, compared to untreated. A) Western blot analysis of hsp70 and alpha-tubulin protein levels induced by as-produced, annealed, and functionalized CB, activated carbon or benzene, alone or in combination with carbon particles. B) Relative quantitation of hsp70 protein levels induced by particle dispersants, normalized to hsp70 induced by 20 mg/L MSB. C) Relative quantitation of hsp70 levels induced by coexposure to particle dispersants and benzene, normalized to hsp70 levels induced by 20 mg/L MSB.