MOF-derived porous ZnO-Co3O4 nanocages as peroxidase mimics for colorimetric detection of copper(ii) ions in serum†

References

ref title DOI material type comment
3973 787 MOF-derived porous ZnO-Co3O4 nanocages as peroxidase mimics for colorimetric detection of copper(ii) ions in serum† https://doi.org/10.1039/D0AN01383H Metal oxide porous bimetallic transition metal oxide nanocages (ZnO-Co3O4 NCs)

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
7998 787 ZnCo-ZIF 230 nm SEM As shown in Fig. S1,† the synthesized ZnCo-ZIF nanocrystals were monodispersed with an average diameter of about 230 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
6690 787 ZnO-Co3O4 POD TMB 4.5 RT 0.164 mM 4.85 -8 M/s 787
6689 787 ZnO-Co3O4 POD H2O2 4.5 RT 1.26 mM 2.13 -8 M/s 787

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5712 787 ZnO-Co3O4 colorimetric detection of copper(ii) ions in serum copper(ii) Color 2-100 nM 1.08 nM As shown in Fig. S8,† the activity of our system kept over 90% after three recycles and only a minimal loss in the activity (<15%) was observed even after five recycles.