Fe3O4

Materials

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
7750 521 Fe3O4 TEM
7751 521 Fe3O4 XRD The XRD patterns comprising of seven diffraction peaks centered at 2θ angles of 30.6°, 35.98°, 43.74°, 54.04°, 57.54°, 63.22°, and 74.89°
7858 638 Fe3O4 32 nm TEM
7978 772 Fe3O4 294.7 nm TEM
8023 820 Fe3O4 10 nm TEM average hydrodynamic diameter of about 104 and 115 nm for SG-GMNPs and SS-GMNPs, respectively.
8062 867 Fe3O4 8.3 nm TEM
8266 1249 Fe3O4 200 nm TEM Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) demonstrated that the asprepared Fe3O4 nanozymes with PEG modification have a rough surface with a diameter size of 200 nm (Figure S1).
8342 1334 Fe3O4 25.8

Kinetics

ref material enzyme type substrate pH T km km err km 10n km unit vmax vmax err vmax 10n vmax unit kcat kcat err kcat 10n kcat unit kcat/km kcat/km 10n kcat/km unit comment
5957 61 Fe3O4 POD TMB 0.285 mM 2.91 -8 M/s 61 61
5958 61 Fe3O4 POD H2O2 0.238 mM 3.21 -8 M/s 61 61
6384 521 Fe3O4 OXD Ce6+ 4.0 RT 0.114 mM 521 521
6167 285 Fe3O4 POD 285 285
6522 638 Fe3O4 CAT H2O2 638 638
6762 867 Fe3O4 CAT H2O2 867
6933 1008 Fe3O4 POD TMB 4 30 0.242 mM 3.9 -8 M/s 1008
6938 1008 Fe3O4 POD H2O2 4 30 0.355 mM 1.6 -8 M/s 1008
7183 1249 Fe3O4 POD TMB 0.905 0.222 mM 227.2 27.5 nM/s 1249
7184 1249 Fe3O4 POD H2O2 459.7 103.4 mM 403.8 70.8 nM/s 1249
7185 1249 Fe3O4 CAT H2O2 0.192 0.0844 mM 7.739 1.169 mg/L/s 1249

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5177 285 Fe3O4 anticancer
5463 521 Fe3O4 Determination of Cr6+ Cr6+ Color 0−500 μM 0.03465 μM 92.43%-110.66%
5571 638 Fe3O4 For Cancer Magneto-Catalytic Theranostics
5698 772 Fe3O4 detect MCF-7 MCF-7 Color 10–500 cells/ml 3 cells/ml
5794 867 Fe3O4 catalyze the fluorogenic oxidation reaction of amplex red by H2O2
6120 1249 Fe3O4 Neuroprotective

References

ref title DOI material type comment
3824 638 Genetically engineered magnetic nanocages for cancer magneto-catalytic theranostics https://doi.org/10.1038/s41467-020-19061-9 Metal oxide Encapsulin-produced magnetic iron oxide nanocomposites
3708 521 Colorimetric quantification of chromium (VI) ions based on oxidoreductase-like activity of Fe3O4 https://doi.org/10.1016/j.snb.2020.128726 Metal oxide Fe3O4
4006 820 Phenylseleno N-Acetyl α-Amino Acids Conjugated Magnetic Nanoparticles: Synthesis, Characterization and Radical Scavenging Ability https://doi.org/10.1246/cl.200490 Metal oxide Organoselenium compounds, Phenylseleno N-acetyl α-amino acid (PhSeCH2CONHCH2COOH and PhSeCH2CONHCH (CH2OH) COOH) synthesized in our laboratory have been covalently conjugated to Fe3O4 magnetic nanoparticles (MNPs) through amide linkage.
3958 772 Colorimetric detection of immunomagnetically captured rare number CTCs using mDNA-wrapped single-walled carbon nanotubes https://doi.org/10.1016/j.bios.2020.112780 Metal oxide Fe3O4 immunomagnetic nanoparticles (IMNs)
4498 1334 Synthesis and characterization of Fe3O4-supported metal–organic framework MIL-101 (Fe) for a highly selective and sensitive hydrogen peroxide electrochemical sensor https://doi.org/10.1007/s11581-020-03601-w MOF an MIL-101(Fe)@Fe3O4-modified nafion glassy carbon electrode (NGCE)
4433 1249 Dietary Fe3O4 Nanozymes Prevent the Injury of Neurons and Blood–Brain Barrier Integrity from Cerebral Ischemic Stroke https://doi.org/10.1021/acsbiomaterials.0c01312 Metal oxide Fe3O4
4053 867 Revealing Kinetics of Two-Electron Oxygen Reduction Reaction at Single-Molecule Level https://doi.org/10.1021/jacs.0c06020 Metal oxide The uniform 8.3 nm sized Fe3O4 NPs were prepared using the previously reported method