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. Author manuscript; available in PMC: 2009 Nov 1.
Published in final edited form as: Toxicol Appl Pharmacol. 2008 Aug 8;232(3):469–477. doi: 10.1016/j.taap.2008.08.001

Figure 2.

Figure 2

Association of radiolabeled IL-8 with diesel soot particles. SRM2975 was suspended as described in the legend to Figure 1 and incubated with 500 pg/ml IL-8 containing tracer amounts of 125I-IL-8 for 2 h. The suspension was centrifuged and the radiolabel in the supernatant was determined by gamma counting. The remaining label was detected in the pellet (data not shown). Standard errors for triplicate measurements were smaller than the size of the symbols. Curves were fit to a competitive binding model.