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NPA-Cu(2+) Complex as a Fluorescent Sensing Platform for the Selective and Sensitive Detection of Glyphosate
Glyphosate is a highly effective, low-toxicity, broad-spectrum herbicide, which is extensively used in global agriculture to control weeds and vegetation. However, glyphosate has become a potential threat to human and ecosystem because of its excessive usage and its bio-concentration in soil and wat...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8469908/ https://www.ncbi.nlm.nih.gov/pubmed/34575982 http://dx.doi.org/10.3390/ijms22189816 |
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author | Sun, Fang Ye, Xin-Lu Wang, Yu-Bo Yue, Ming-Li Li, Ping Yang, Liu Liu, Yu-Long Fu, Ying |
author_facet | Sun, Fang Ye, Xin-Lu Wang, Yu-Bo Yue, Ming-Li Li, Ping Yang, Liu Liu, Yu-Long Fu, Ying |
author_sort | Sun, Fang |
collection | PubMed |
description | Glyphosate is a highly effective, low-toxicity, broad-spectrum herbicide, which is extensively used in global agriculture to control weeds and vegetation. However, glyphosate has become a potential threat to human and ecosystem because of its excessive usage and its bio-concentration in soil and water. Herein, a novel turn-on fluorescent probe, N-n-butyl-4-(3-pyridin)ylmethylidenehydrazine-1,8-naphthalimide (NPA), is proposed. It efficiently detected Cu(2+) within the limit of detection (LOD) of 0.21 μM and displayed a dramatic turn-off fluorescence response in CH(3)CN. NPA-Cu(2+) complex was employed to selectively and sensitively monitor glyphosate concentrations in real samples accompanied by a fluorescence turn-on mode. A good linear relationship between NPA and Cu(2+) of glyphosate was found in the range of 10–100 μM with an LOD of 1.87 μM. Glyphosate exhibited a stronger chelation with Cu(2+) than NPA and the system released free NPA through competitive coordination. The proposed method demonstrates great potential in quantitatively detecting glyphosate in tap water, local water from Songhua River, soil, rice, millet, maize, soybean, mung bean, and milk with mild conditions, and is a simple procedure with obvious consequences and no need for large instruments or pretreatment. |
format | Online Article Text |
id | pubmed-8469908 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-84699082021-09-27 NPA-Cu(2+) Complex as a Fluorescent Sensing Platform for the Selective and Sensitive Detection of Glyphosate Sun, Fang Ye, Xin-Lu Wang, Yu-Bo Yue, Ming-Li Li, Ping Yang, Liu Liu, Yu-Long Fu, Ying Int J Mol Sci Article Glyphosate is a highly effective, low-toxicity, broad-spectrum herbicide, which is extensively used in global agriculture to control weeds and vegetation. However, glyphosate has become a potential threat to human and ecosystem because of its excessive usage and its bio-concentration in soil and water. Herein, a novel turn-on fluorescent probe, N-n-butyl-4-(3-pyridin)ylmethylidenehydrazine-1,8-naphthalimide (NPA), is proposed. It efficiently detected Cu(2+) within the limit of detection (LOD) of 0.21 μM and displayed a dramatic turn-off fluorescence response in CH(3)CN. NPA-Cu(2+) complex was employed to selectively and sensitively monitor glyphosate concentrations in real samples accompanied by a fluorescence turn-on mode. A good linear relationship between NPA and Cu(2+) of glyphosate was found in the range of 10–100 μM with an LOD of 1.87 μM. Glyphosate exhibited a stronger chelation with Cu(2+) than NPA and the system released free NPA through competitive coordination. The proposed method demonstrates great potential in quantitatively detecting glyphosate in tap water, local water from Songhua River, soil, rice, millet, maize, soybean, mung bean, and milk with mild conditions, and is a simple procedure with obvious consequences and no need for large instruments or pretreatment. MDPI 2021-09-10 /pmc/articles/PMC8469908/ /pubmed/34575982 http://dx.doi.org/10.3390/ijms22189816 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Sun, Fang Ye, Xin-Lu Wang, Yu-Bo Yue, Ming-Li Li, Ping Yang, Liu Liu, Yu-Long Fu, Ying NPA-Cu(2+) Complex as a Fluorescent Sensing Platform for the Selective and Sensitive Detection of Glyphosate |
title | NPA-Cu(2+) Complex as a Fluorescent Sensing Platform for the Selective and Sensitive Detection of Glyphosate |
title_full | NPA-Cu(2+) Complex as a Fluorescent Sensing Platform for the Selective and Sensitive Detection of Glyphosate |
title_fullStr | NPA-Cu(2+) Complex as a Fluorescent Sensing Platform for the Selective and Sensitive Detection of Glyphosate |
title_full_unstemmed | NPA-Cu(2+) Complex as a Fluorescent Sensing Platform for the Selective and Sensitive Detection of Glyphosate |
title_short | NPA-Cu(2+) Complex as a Fluorescent Sensing Platform for the Selective and Sensitive Detection of Glyphosate |
title_sort | npa-cu(2+) complex as a fluorescent sensing platform for the selective and sensitive detection of glyphosate |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8469908/ https://www.ncbi.nlm.nih.gov/pubmed/34575982 http://dx.doi.org/10.3390/ijms22189816 |
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