ref | title | DOI | material type | comment |
---|---|---|---|---|
200 | White Peroxidase‐Mimicking Nanozymes: Colorimetric Pesticide Assay without Interferences of O2 and Color | https://doi.org/10.1002/adfm.202001933 | Metal oxide | GeO2 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
200 | GeO2 | showed besom-like morphology with uniform size (width of ≈100 nm and length of ≈1 µm). the “head of besom” was composed of long strip with width of ≈10 nm (Figure 1c,d). |
ref | material | application | target | method | linear range | linear ran unit | LOD | lod unit | recovery | comment |
---|---|---|---|---|---|---|---|---|---|---|
200 | GeO2 | Colorimetric Assay of OPs | paraoxon | Color | 0.1-50 | pM | 14 | fM | ||
200 | GeO2 | Colorimetric Assay of OPs | paraoxon | Color | 0.1-50 | pM | 14 | fM | Typically, 100 µL of different concentrations of paraoxon (0, 0.1, 2, 5, 10, 15, 30, 50, 70, 100 pm) were mixed with 20 µL of PB solutions (0.1 m, pH 8.0) containing AChE (10 µg mL−1). After the incubation for 20 min at 37 °C, 20 µL of ATCh solution (10 mm) and 20 µL of GeO2 nanozymes solution (1 mg mL−1) were added into the above mixture respectively for another 20 min incubation. The residual GeO2 nanozymes was collected by centrifugation, and added into 200 µL of acetate buffer (pH 4.0, 0.1 m) containing TMB (0.6 mm) and H2O2 (1.2 mm). Finally, the absorbance of the above reaction was measured after 30 min. Each experiment was repeated three times. The LOD was calculated by the equation LOD = (3σ/s), where σ is the standard deviation of blank signals and s is the slope of the calibration curve. |