A Simple Colorimetric and Fluorescent Sensor to Detect Organophosphate Pesticides Based on Adenosine Triphosphate-Modified Gold Nanoparticles

文献类型： 外文期刊

第一作者： Li, Xiaoxia

作者： Li, Xiaoxia;Cui, Haixin;Zeng, Zhanghua

作者机构：

关键词： organophosphate pesticides; gold nanoparticles; colorimetric and fluorescent sensor; ethoprophos detection; multimodal assay

期刊名称：SENSORS （ 影响因子：3.576； 五年影响因子：3.735 ）

ISSN： 1424-8220

年卷期： 2018 年 18 卷 12 期

页码：

收录情况： SCI

摘要： A simple and dual modal (colorimetric and fluorescent) sensor for organophosphate pesticides with high sensitivity and selectivity using adenosine triphosphate (ATP)- and rhodamine B-modified gold nanoparticles (RB-AuNPs), was successfully fabricated. This detection for ethoprophos afforded colorimetric and fluorescence imaging changes visualization. The quantitative determination was linearly proportional to the amounts of ethoprophos in the range of a micromolar scale (4.0-15.0 mu M). The limit of detection for ethoprophos was as low as 37.0 nM at 3 sigma/k. Moreover, the extent application of this simple assay was successfully demonstrated in tap water samples with high reliability and applicability, indicating remarkable application in real samples.

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