Figure 3.
Mössbauer spectra (4.5 K 0.05 T) of EGTA-washed mitochondria (Sample F14, (18)) incubated (A, black hash marks), and not incubated (A, blue line) with phen. B, incubated-minus-not-incubated difference spectrum. The red line is a simulation assuming that NHHS FeII ions converted to FeII(phen)3 after exposure to phen. The remaining FeII(phen)3 doublet originated from either FeIII nanoparticles, mononuclear FeIII ions or irons of the central doublet.