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. Author manuscript; available in PMC: 2023 Feb 23.
Published in final edited form as: Environ Toxicol. 2021 Nov 3;37(2):237–244. doi: 10.1002/tox.23393

FIGURE 4.

FIGURE 4

Effects of free radical scavenger on ESR spectra signals (A) and average ESR peak (B) generated by DMPO-OH adducts. (A) DMPO (200 mM); (B) DMPO + JB6 cells (1 × 106); (C) DMPO + TiO2 NPs (1 mg/ml) + JB6 cells (1 × 106); (D) DMPO + TiO2 NPs (1 mg/ml) + JB6 cells (1 × 106) + 2000 U/ml catalase; (E) DMPO + TiO2 NPs (1 mg/ml) + JB6 cells (1 × 106) + deferoxamine (2 mM); (F) DMPO + TiO2 NPs (1 mg/ml) + JB6 cells (1 × 106) + H2O2 (1 mM). (B) The average ESR peak was presented as means ± SE (n = 3)