Colorimetric ascorbic acid sensing from a synergetic catalytic strategy based on 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphyrin functionalized CuS nanohexahedrons with the enhanced peroxidase-like activity

References

ref title DOI material type comment
3429 198 Colorimetric ascorbic acid sensing from a synergetic catalytic strategy based on 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphyrin functionalized CuS nanohexahedrons with the enhanced peroxidase-like activity https://doi.org/10.1016/j.colsurfa.2020.124855 Sulfide TPyP-CuS, 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphyrin (TPyP) functionalized CuS nanohexahedrons

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
7481 198 CuS 180 nm SEM the morphology of CuS is hexahedrons with the size range of 118–238 nm and with an average size of 180 nm (Fig. S1)

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
6095 198 TPyP-CuS POD H2O2 3.937 mM 2.139 -8 M/s 198 198
6094 198 TPyP-CuS POD TMB 0.106 mM 5.30 -8 M/s 198

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5108 198 TPyP-CuS ascorbic acid (AA) Ascorbic acid (AA) Color 1-30 μM 0.419 μM
5107 198 TPyP-CuS detect H2O2 H2O2 Color 1.0-8.0 mM 121.8 μM