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Oxidative stress induced by GOI-coated surface. Loss of glutathione percentage after in vitro incubation with the GO films at different GO contents ranging from 60 to 200 μg for 3 h. A bicarbonate buffer without a GO film was taken as the negative control and H2O2 was used as a positive control. Data represented here for glutathione oxidation between the treated and control samples was found to be statistically significant (p-value < 0.05).
