Chemical state tuning of surface Ce species on pristine CeO 2 with 2400% boosting in peroxidase-like activity for glucose detection

References

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title
DOI
material type
comment
1441Chemical state tuning of surface Ce species on pristine CeO 2 with 2400% boosting in peroxidase-like activity for glucose detectionhttps://doi.org/10.1039/D0CC02351EMetal oxideCeO2 cubic shaped

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
1441CeO2 cubes20-50nmTEMlateral length29μmol/minU/mg
1441rod-shaped CeO2200nmTEMLength95μmol/minU/mg
1441rod-shaped CeO210nmTEMDiameter46μmol/minU/mg
1441CeO2 octahedron15-20nmTEMFig. 1a shows the CeO2 octahedron with a narrow size distribution between 15 and 20 nm

Kinetics

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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
1441CeO2 CubePODTMB0.1801mM1.0904μM/min1441
1441CeO2 CubePODH2O230.9mM3.4521μM/min1441
1441CeO2 RodPODTMB0.23mM0.1646μM/min1441
1441CeO2 RodPODH2O2302mM2.5813μM/min1441
1441CeO2 Octa.PODTMB3.743mM0.2736μM/min1441
1441CeO2 Octa.PODH2O2415.2mM0.8163μM/min1441

Applications

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material
application
target
method
linear range
linear ran unit
LOD
lod unit
recovery
comment
1441CeO2-CubeGlucose detectionGlucoseColor1-100μM0.904μM
1441CeO2-CubeDetection of H2O2H2O2Color1-50μM0.542μM
1441CeO2 Octa.Glucose detectionGlucoseColor2-10μM3.557μM
1441CeO2 Octa.Detection of H2O2H2O2Color2-10μM2.569μM