Smartphone-integrated paper-based sensing platform for the visualization and quantitative detection of pymetrozine

被引：10

作者：

Zhao, Beibei ^{[1
,2
]}

Liu, Xinfang ^{[1
]}

Cheng, Zheng ^{[1
,2
]}

Liu, Xu ^{[1
,2
]}

Zhang, Xiaoyu ^{[2
]}

Feng, Xun ^{[1
]}

机构：

[1] Luoyang Normal Univ, Coll Chem & Chem Engn, Henan Key Lab Funct Oriented Porous Mat, Luoyang 471934, Peoples R China

[2] Henan Univ Sci & Technol, Coll Food & Bioengn, Luoyang 471022, Peoples R China

来源：

FOOD CHEMISTRY | 2024年 / 440卷

基金：

中国国家自然科学基金;

关键词：

Fluorescence; Pymetrozine; Paper strip; Smartphone-assisted; Logic gate; TARGET;

D O I：

10.1016/j.foodchem.2023.138269

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Pymetrozine (PYM) is an effective pyridine insecticide for controlling aphids, while its residues pose a serious threat to human health. Herein, a europium complex (Eu-DBPA, DBPA represents deprotonated 2,5-dibromoterephthalic acid ligand) probe was prepared for the detection of PYM via fluorescence quenching. The detection process has the advantages of short response time (2 min), wide linear range (0-4 and 4-45 mg/kg) and low detection limit (2.2 mu g/kg). Furthermore, a portable detection platform was designed by integrating Eu-DBPAbased paper strip with smartphone and applied for the visual detection of PYM in real cucumber, tomato, cabbage and apple samples, obtaining satisfactory recovery (99.00 %-107.00 %) and low standard deviation (RSD < 3.4 %). In addition, a logic gate device was designed to simplify the detection process. The smartphoneintegrated paper-based probe detection platform provides a new strategy for intelligent and online identification of hazards in environmental and biological samples.

引用

页数：10