Highly dispersed Pt nanoparticles on ultrasmall EMT zeolite: A peroxidase-mimic nanoenzyme for detection of H2O2 or glucose

References

ref title DOI material type comment
3433 202 Highly dispersed Pt nanoparticles on ultrasmall EMT zeolite: A peroxidase-mimic nanoenzyme for detection of H2O2 or glucose https://doi.org/10.1016/j.jcis.2020.02.118 Composite In this work, novel Pt/EMT nanocomposites were prepared by uniformly loading Pt NPs (5–8 nm) onto the support of ultrasmall EMT zeolite (15–20 nm), a kind of low-silica microporous aluminosilicate material.

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
7488 202 Pt/EMT The EMT zeolite synthesized under mild conditions comprises a great number of uniform nanocrystals with slightly different morphology and average particle size of 15–20 nm (Fig. 2A and S2), in agreement with the result calculated by Scherrer Equation. Moreover, some highly-dispersed Pt NPs in size of 5–8 nm are confined within the zeolite (Fig. 2D) 457

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
6099 202 2.6Pt/EMT POD H2O2 0.58 mM 11.6 -8 M/s 12.0 1/min 202 202
6098 202 2.6Pt/EMT POD TMB 0.16 mM 4.72 -8 M/s 17.7 1/min 202

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5114 202 2.6Pt/EMT Detection of H2O2 and glucose H2O2 Color 2.9-29.4 μM 1.1 μM
5113 202 2.6Pt/EMT Detection of H2O2 and glucose glucose Color 0.09-0.27 mM 13.2 μM