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

References

ref title DOI material type comment
4593 1441 Chemical state tuning of surface Ce species on pristine CeO 2 with 2400% boosting in peroxidase-like activity for glucose detection https://doi.org/10.1039/D0CC02351E Metal oxide CeO2 cubic shaped

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
8447 1441 CeO2 cubes 20-50 nm TEM lateral length 29 μmol/min U/mg
8446 1441 rod-shaped CeO2 200 nm TEM Length 95 μmol/min U/mg
8445 1441 rod-shaped CeO2 10 nm TEM Diameter 46 μmol/min U/mg
8444 1441 CeO2 octahedron 15-20 nm TEM Fig. 1a shows the CeO2 octahedron with a narrow size distribution between 15 and 20 nm

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
7361 1441 CeO2 Cube POD TMB 0.1801 mM 1.0904 μM/min 1441
7360 1441 CeO2 Cube POD H2O2 30.9 mM 3.4521 μM/min 1441
7359 1441 CeO2 Rod POD TMB 0.23 mM 0.1646 μM/min 1441
7358 1441 CeO2 Rod POD H2O2 302 mM 2.5813 μM/min 1441
7357 1441 CeO2 Octa. POD TMB 3.743 mM 0.2736 μM/min 1441
7356 1441 CeO2 Octa. POD H2O2 415.2 mM 0.8163 μM/min 1441

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
6293 1441 CeO2-Cube Glucose detection Glucose Color 1-100 μM 0.904 μM
6292 1441 CeO2-Cube Detection of H2O2 H2O2 Color 1-50 μM 0.542 μM
6291 1441 CeO2 Octa. Glucose detection Glucose Color 2-10 μM 3.557 μM
6290 1441 CeO2 Octa. Detection of H2O2 H2O2 Color 2-10 μM 2.569 μM


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