A Fluorescent Molecularly Imprinted Polymer-Coated Paper Sensor for On-Site and Rapid Detection of Glyphosate
文献类型： 外文期刊
作者： Wang, Meng 1 ; Qiu, Jun 2 ; Zhu, Chennuo 2 ; Hua, Yunyan 2 ; Yu, Jie 2 ; Jia, Lulu 3 ; Xu, Jianhong 1 ; Li, Jianlin 2 ; Li, Qianjin 2 ;
作者机构： 1.Jiangsu Acad Agr Sci, Jiangsu Key Lab Food Qual & Safety, State Key Lab Cultivat Base, Minist Sci & Technol, Nanjing 210014, Peoples R China
2.Nanjing Normal Univ, Sch Food Sci & Pharmaceut Engn, Nanjing 210023, Peoples R China
3.State Grid Jiangxi Elect Power Res Inst, Nanchang 330096, Peoples R China
关键词： molecular imprinting; paper sensor; glyphosate; pesticide residues; rapid detection
期刊名称：MOLECULES （ 影响因子：4.6； 五年影响因子：4.9 ）
ISSN：
年卷期： 2023 年 28 卷 5 期
页码：
收录情况： SCI
摘要： Due to the massive use and abuse of pesticides, practices which have led to serious threats to human health, the research community must develop on-site and rapid detection technology of pesticide residues to ensure food safety. Here, a paper-based fluorescent sensor, integrated with molecularly imprinted polymer (MIP) targeting glyphosate, was prepared by a surface-imprinting strategy. The MIP was synthesized by a catalyst-free imprinting polymerization technique and exhibited highly selective recognition capability for glyphosate. The MIP-coated paper sensor not only remained selective, but also displayed a limit of detection of 0.29 mu mol and a linear detection range from 0.5 to 10 mu mol. Moreover, the detection time only took about 5 min, which is beneficial for rapid detection of glyphosate in food samples. The detection accuracy of such paper sensor was good, with a spiked recovery rate of 92-117% in real samples. The fluorescent MIP-coated paper sensor not only has good specificity, which is helpful to reduce the food matrix interference and shorten the sample pretreatment time, but it also has the merits of high stability, low-cost and ease of operation and carrying, displaying great potential for application in the on-site and rapid detection of glyphosate for food safety.
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