Magnetite nanoparticles-based hydroxyl radical scavenging activity assay of antioxidants using N, N-dimethyl-p-phenylenediamine probe

References

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1316Magnetite nanoparticles-based hydroxyl radical scavenging activity assay of antioxidants using N, N-dimethyl-p-phenylenediamine probehttps://doi.org/10.3906/kim-2006-9Metal oxideMagnetite nanoparticles (Fe3 O4 :MNPs) have attracted attention because of their peroxidase-like activity. In this study, hydroxyl radicals (• OH) generated by MNPs-catalyzed degradation of H2 O2 converted the N,N-dimethyl-p-phenylenediamine (DMPD) probe into its colored DMPD•+ radical cation, which gave an absorbance maximum at λ = 553 nm.

Materials

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1316Fe3 O4 NPs20-30nmSEMWhen scanning electron microscopy (SEM) analysis was performed to observe the shape and size of synthesized magnetite nanoparticles, they were found to be spherical and in between 20 and 30 nm in diameter

Kinetics

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1316Fe3O4 NPsPOD13161316

Applications

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1316Fe3O4 NPsdetection of hydroxyl radical scavenging activity·OHColor