Nanozyme based on CoFe 2 O 4 modified with MoS 2 for colorimetric determination of cysteine and glutathione

References

ref title DOI material type comment
4245 1058 Nanozyme based on CoFe 2 O 4 modified with MoS 2 for colorimetric determination of cysteine and glutathione https://doi.org/10.1007/s00604-021-04702-7 Composite ferrite CoFe2O4 is synthesized, and it is then modified by MoS2 to form a flower-like polymer (MoS2@CoFe2O4)

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
8121 1058 MoS2@CoFe2O4 450-650 nm DLS Besides, the particle size distribution assay demonstrated the diameter of the MoS2@CoFe2O4 mainly focuses on 450~650 nm, which is equal to the sum of the main diameters of MoS2 and CoFe2O4 (Fig. S4).

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
7008 1058 MoS2@CoFe2O4 POD H2O2 0.048 mM 17.5 -8 M/s 1058 1058
7007 1058 MoS2@CoFe2O4 POD TMB 0.067 mM 23.9 -8 M/s 1058 1058

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5967 1058 MoS2@CoFe2O4 determination of glutathione (GSH) GSH Color 0.5-35 μM 0.21 μM
5966 1058 MoS2@CoFe2O4 determination of cysteine (Cys) Cys Color 0.5-15 μM 0.10 μM 95.3% and 96.0% with the RSD of 2.1% and 4.2%