ref | title | DOI | material type | comment |
---|---|---|---|---|
1316 | Magnetite nanoparticles-based hydroxyl radical scavenging activity assay of antioxidants using N, N-dimethyl-p-phenylenediamine probe | https://doi.org/10.3906/kim-2006-9 | Metal oxide | Magnetite 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. |
ref | material | size | size err | size unit | size type | size comment | BET | b nanozyme | b 10n | b unit | specific act | sa 10n | sa unit | comment |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1316 | Fe3 O4 NPs | 20-30 | nm | SEM | When 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 |