ref | title | DOI | material type | comment |
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391 | Portable Hg2+ Nanosensor with ppt Level Sensitivity Using Nanozyme as the Recognition Unit, Enrichment Carrier, and Signal Amplifier | https://doi.org/10.1021/acsami.0c00210 | Sulfide | CuS hollow nanospheres (HNSs) |
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 |
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ref | material | application | target | method | linear range | linear ran unit | LOD | lod unit | recovery | comment |
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391 | CuS HNSs. | a portable and cost-effective Hg2+ nanosensor has been developed based on a desorption-free enrichmentdetection integration strategy. The core of the nanosensor is the employment of CuS HNSs, which play three roles including recognition unit for Hg2+ sensing, enrichment carrier for Hg2+ preconcentration, and mimetic peroxidase for signal amplification and readout. The customizable enrichmentdetection integration strategy gives the nanosensor a high selectivity, a wide detection range (50 ppt to 400 ppb), and a high sensitivity with a minimum detectable Hg2+ concentration of 50 ppt. In addition, the as-developed nanosensor is feasible for analysis of Hg2+ in real-world environmental and food samples with moderate accuracy (deviation <10%) and reproducibility (recovery ∼82%). | Hg2+ | Color | 0.05 | ppb | 82 |