Fe3O4

Materials

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material
size
size err
size unit
size type
size comment
BET
b nanozyme
b 10n
b unit
specific act
sa 10n
sa unit
comment
521Fe3O4TEM
521Fe3O4XRDThe 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°
638Fe3O432nmTEM
772Fe3O4294.7nmTEM
820Fe3O410nmTEMaverage hydrodynamic diameter of about 104 and 115 nm for SG-GMNPs and SS-GMNPs, respectively.
867Fe3O48.3nmTEM
1249Fe3O4200nmTEMScanning 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).
1334Fe3O425.8

Kinetics

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enzyme type
substrate
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T
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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
61Fe3O4PODTMB0.285mM2.91-8M/s6161
61Fe3O4PODH2O20.238mM3.21-8M/s6161
521Fe3O4OXDCe6+4.0RT0.114mM521521
285Fe3O4POD285285
638Fe3O4CATH2O2638638
867Fe3O4CATH2O2867
1008Fe3O4PODTMB4300.242mM3.9-8M/s1008
1008Fe3O4PODH2O24300.355mM1.6-8M/s1008
1249Fe3O4PODTMB0.9050.222mM227.227.5nM/s1249
1249Fe3O4PODH2O2459.7103.4mM403.870.8nM/s1249
1249Fe3O4CATH2O20.1920.0844mM7.7391.169mg/L/s1249

Applications

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application
target
method
linear range
linear ran unit
LOD
lod unit
recovery
comment
285Fe3O4anticancer
521Fe3O4Determination of Cr6+Cr6+Color0−500μM0.03465μM92.43%-110.66%
638Fe3O4For Cancer Magneto-Catalytic Theranostics
772Fe3O4detect MCF-7MCF-7Color10–500cells/ml3cells/ml
867Fe3O4catalyze the fluorogenic oxidation reaction of amplex red by H2O2
1249Fe3O4Neuroprotective

References

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title
DOI
material type
comment
638Genetically engineered magnetic nanocages for cancer magneto-catalytic theranosticshttps://doi.org/10.1038/s41467-020-19061-9Metal oxideEncapsulin-produced magnetic iron oxide nanocomposites
521Colorimetric quantification of chromium (VI) ions based on oxidoreductase-like activity of Fe3O4https://doi.org/10.1016/j.snb.2020.128726Metal oxideFe3O4
820Phenylseleno N-Acetyl α-Amino Acids Conjugated Magnetic Nanoparticles: Synthesis, Characterization and Radical Scavenging Abilityhttps://doi.org/10.1246/cl.200490Metal oxideOrganoselenium 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.
772Colorimetric detection of immunomagnetically captured rare number CTCs using mDNA-wrapped single-walled carbon nanotubeshttps://doi.org/10.1016/j.bios.2020.112780Metal oxideFe3O4 immunomagnetic nanoparticles (IMNs)
1334Synthesis and characterization of Fe3O4-supported metal–organic framework MIL-101 (Fe) for a highly selective and sensitive hydrogen peroxide electrochemical sensorhttps://doi.org/10.1007/s11581-020-03601-wMOFan MIL-101(Fe)@Fe3O4-modified nafion glassy carbon electrode (NGCE)
1249Dietary Fe3O4 Nanozymes Prevent the Injury of Neurons and Blood–Brain Barrier Integrity from Cerebral Ischemic Strokehttps://doi.org/10.1021/acsbiomaterials.0c01312Metal oxideFe3O4
867Revealing Kinetics of Two-Electron Oxygen Reduction Reaction at Single-Molecule Levelhttps://doi.org/10.1021/jacs.0c06020Metal oxideThe uniform 8.3 nm sized Fe3O4 NPs were prepared using the previously reported method