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Fig. 6 | Journal of Nanobiotechnology

Fig. 6

From: Study on the mechanism of antibacterial action of magnesium oxide nanoparticles against foodborne pathogens

Fig. 6

Production of H2O2 in MgO/ZnO nanoparticle suspensions. The production of H2O2 in nanoparticle suspensions was measured by spectral absorbance scanning of resorufin, a fluorescent compound formed from a peroxidase substrate by H2O2 reduction. The solid curves represent the absorbance of various known concentrations of H2O2 standards, and the dotted curves show the levels of H2O2 released from MgO/ZnO nanoparticle suspensions after baseline subtraction. The maximum excitation and emission wavelengths of resorufin fluorescence are at 570 and 585 nm, respectively

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