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. Author manuscript; available in PMC: 2009 Feb 9.
Published in final edited form as: Chem Res Toxicol. 2008 Apr 19;21(5):1056–1063. doi: 10.1021/tx800056w

Figure 6.

Figure 6

EPR spectrum of an aqueous solution of C60(OH)24 (50 μM) containing 1% DMSO. (A) Irradiated (λ > 300 nm); (B) irradiated (λ > 300 nm) in the presence of 5 mM NADH; (C) irradiated (λ > 400 nm) in the presence of 80 mM DMPO; (D) same as part C with the addition of 5 mM NADH; and (E) simulation of part D using the following parameters: DMPO/O2·- (aN = 14.1 G, aH1 = 11.3 G, and aH2 = 1.2 G; 92.9%); DMPO/C· (aN = 16.3 G and aH = 23.4 G; 7.1%). Instrumental settings: microwave power, 10 mW; modulation frequency, 100 kHz; modulation amplitude, 1 G; time constant, 655 ms; 335 s scan time; and scan range, 100 G.