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New micro/nanocomposite with peroxidase-like activity in construction of oxidases-based amperometric biosensors for ethanol and glucose analysis

References

ref title DOI material type comment
4324 1138 New micro/nanocomposite with peroxidase-like activity in construction of oxidases-based amperometric biosensors for ethanol and glucose analysis https://doi.org/10.1016/j.aca.2020.11.052 Composite carbon microfibers (CF) by hemin (H) and gold (Au) nanoparticles

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
8195 1138 CF-H-Au 200 μm SEM The formation of Au on the surface of CF fragments with a size up to 200 μm (obtained by pre-ultrasonic treatment) is much more efficient (light areas) compared to larger CF fragments (dark areas) (see figs2, figs3).

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
7107 1138 GOX–CF–H-Au POD glucose 1.47 0.28 mM 12.6 1.5 μA 1138
7106 1138 AOX–CF–H-Au POD ethanol 0.14 0.01 mM 8.16 0.16 μA 1138
7105 1138 CF-H POD H2O2 4.7 mM 1138
7104 1138 CF-H-Au POD H2O2 2.87 mM 1138

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
6042 1138 GOX–CF–H-Au detection to glucose glucose E-chem 0.1–0.9 mM 0.05 mM
6041 1138 AOX–CF–H-Au detection to ethanol ethanol E-chem 0.01–0.15 mM 0.005 mM


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