ref | title | DOI | material type | comment |
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656 | Electrochemical detection of methyl-paraoxon based on bifunctional nanozyme with catalytic activity and signal amplification effect | https://doi.org/10.1016/j.jpha.2020.09.002 | Metal oxide | A new electrochemical sensor for organophosphate pesticide (methyl-paraoxon) detection based on bifunctional cerium oxide (CeO2) nanozyme is here reported for the first time. Methyl-paraoxon was degraded into p-nitrophenol by using CeO2 with phosphatase mimicking activity. |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
656 | CeO2 | 3~4 | nm | XRD | The synthesized CeO2 were uniform in size and the estimated average diameter was between 3 and 4 nm. | The small and uniform particle size provides a larger specific surface area and more active sites, leading to superior enhanced performance in electrochemical detection. |
ref | material | application | target | method | linear range | linear ran unit | LOD | lod unit | recovery | comment |
---|---|---|---|---|---|---|---|---|---|---|
656 | CeO2 | pesticide detection. | Methyl-paraoxon | E-chem | 0.1-100 and 0.1-10 | μM/L | 0.06 | μM/L | What's more, the oxidation peak current increased linearly with MP concentration in the ranges of 0.1–10 μmol/L and 10–100 μmol/L, with correlation coefficients (R2) higher than 0.99 for both two analytical curves (n=3, Fig. 6B). |