Nanozyme-Modified Metal–Organic Frameworks with Multienzymes Activity as Biomimetic Catalysts and Electrocatalytic Interfaces

References

ref title DOI material type comment
3410 179 Nanozyme-Modified Metal–Organic Frameworks with Multienzymes Activity as Biomimetic Catalysts and Electrocatalytic Interfaces https://doi.org/10.1021/acsami.9b23147 MOF ultrasmall Pt nanoparticles (Pt NPs) were loaded on the surface of PMOF(Fe) to form Pt@PMOF(Fe)

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
7469 179 PMOF(Fe) 300 nm SEM The low-magnification SEM images revealed that PMOF(Fe) was of uniform ellipsoidal shape with an average diameter of 300 nm (Figure 1A). TEM images in Figure 1B further show the morphology and size of PMOF(Fe), which was consistent with the result of SEM. After modifying the Pt NPs on the surface of PMOF(Fe), Pt@PMOF(Fe) kept the morphology of PMOF(Fe) (Figure 1C) and with a lot of Pt NPs. The size of Pt NPs is around 2 nm (Figure 1D, inset). These Pt NPs were modified on the surface of PMOF(Fe) uniformly.

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
6072 179 Pt@PMOF (Fe) POD OPD 0.886 mM 179 179
6071 179 PMOF(Fe) POD OPD 7.81 mM 179 179

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5090 179 Pt@PMOF (Fe) H2O2 sensor without adding redox mediators When applied in electrocatalysis, due to the synergy between PMOF(Fe) and Pt NPs, the Pt@PMOF(Fe) modified electrode offers high activities toward to the reduction of H2O2, which could be used for H2O2 sensor without adding redox mediators.
5089 179 Pt@PMOF (Fe) afford ORR in PBS Furthermore, the Pt NPs with porphyrin in PMOF(Fe) could afford ORR in PBS, which has the potential for fuel cells and biofuel cells, especially in cancer diagnosis.
5088 179 Pt@PMOF (Fe) afford ORR in PBS
5087 179 Pt@PMOF (Fe) H2O2 sensor without adding redox mediators