Highly Sensitive Fluorescent Probe for Detection of Paraquat Based on Nanocrystals
| Autor: | Zeinab Pourghobadi, Hadis Makanali, Hakimeh Zare |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Paraquat
Sociology and Political Science Clinical Biochemistry Biosensing Techniques 010402 general chemistry 01 natural sciences Biochemistry chemistry.chemical_compound Tap water Cadmium Compounds Thioglycolic acid Spectroscopy Fluorescent Dyes Reproducibility Chromatography 010405 organic chemistry Chemistry Sulfates Hydrogen-Ion Concentration Fluorescence 0104 chemical sciences Highly sensitive Clinical Psychology Nanocrystal Thioglycolates Nanoparticles Tellurium Law Biosensor Social Sciences (miscellaneous) Water Pollutants Chemical |
| Zdroj: | Journal of fluorescence. 31(2) |
| ISSN: | 1573-4994 |
| Popis: | Paraquat is one of the most toxic materials widely applied in agriculture in most countries. In the present study, a simple, innovative and inexpensive nano biosensor which is based on a thioglycolic acid (TGA) - CdTe@CdS core-shell nanocrystals (NCs) to detect paraquat, is suggested. The NCs based biosensor shows a linear working range of 10–100 nM, and limited detection of 3.5 nM. The proposed sensor that has been well used for the detection and determination of paraquat in natural water samples is collected from corn field and a canal located near to the corn field yielding recoveries as high as 98%. According to our findings, the developed biosensor shows reproducibility and high sensitivity to determine paraquat in natural water samples in which the amount of paraquat has low levels. The suggested method is efficiently applied to paraquat determination in the samples of natural water that are collected from a tap water and a canal located near to the cornfield. |
| Databáze: | OpenAIRE |
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