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Silver nanocluster-based nanoprobe for thiram determination in food and environment
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DOI：10.1039/D6AY00954A.png)
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Abstract
En 中文
A novel silver nanocluster (AgNCs) nanoprobe was prepared using a pyrimidine derivative; 4; 6-diamino-2-mercaptopyrimidine; as surface-ligand and reductant for sensitive and selective monitoring of the fungicide thiram (Thi). AgNCs exhibited a distinct fluorescence quenching response in the presence of Thi. And the photo-induced electron/energy transfer mechanism was responsible for this quenching process; confirmed by LUMO-HOMO energy levels of AgNCs and Thi. By using this sensing platform; the AgNCs nanoprobe with good photophysical properties; superior specificity and satisfactory sensitivity (LOD; 0.37 μM) has been successfully used to detect Thi in real food and environmental samples.
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