Construction of coumarin-appended calix[4]arene-based fluorescence sensor for the detection of carbofuran in cabbage

被引：0
作者：
Soni, Heni [1 ]
Verma, Nidhi [2 ]
Chaudhari, Divyesh Y. [3 ]
Gandhi, Sahaj A. [3 ]
Pandya, Alok [2 ]
Sutariya, Pinkesh G. [1 ]
机构：
[1] Sardar Patel Univ, Dept Chem, VV Nagar 388120, Gujarat, India
[2] Inst Adv Res, Dept Biotechnol & Bioengn, Gandhinagar 382426, Gujarat, India
[3] Bhavans Shri Ishvarbhai L Pandya Arts Sc & Jashoda, Dakor 388225, Gujarat, India
来源：
ANALYTICAL METHODS | 2024年 / 16卷 / 15期
关键词：
PERFORMANCE LIQUID-CHROMATOGRAPHY; PESTICIDE-RESIDUES; IMMUNOSENSOR; RECOGNITION; PROBE; 3-HYDROXY-CARBOFURAN; VEGETABLES; BEHAVIOR; SAMPLES; CU2+;
D O I：
10.1039/d4ay00030g
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This study presents a novel approach for the detection of carbofuran (CBF) insecticide by systematically exploring a calix[4]arene-derived fluorescence probe, CouC4S, functionalized with two coumarin-labelled cystamine linkages at the narrow edge of the calix[4]arene platform. The proposed method showed a fluorescence "signal - off" effect when CBF binds with CouC4S by quenching the fluorescence intensity of CouC4S. Its limit of detection was as low as 5.55 mu M according to the emission study. The working concentration range for this ligand was observed to be up to 5-65 mu M. This method could be applied for the on-spot detection of CBF in real samples such as cabbage by spiking CBFvia in situ experiments, which exhibited a limit of detection of 8.823 ppm. For the further confirmation of CouC4S:CBF binding, cyclic voltammetry, differential pulse voltammetry, powder X-ray diffraction, FT-IR spectroscopy, 1H NMR titration, MALDI-TOF and computational investigations were carried out. This study presents a novel approach for the detection of carbofuran (CBF) insecticide by exploring a calix[4]arene-derived fluorescence probe, CouC4S, functionalized with two coumarin-labelled at the narrow edge of the calix[4]arene platform.
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收藏
页码：2400 / 2411
页数：12
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