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Wu H, Wu A, Liu L, Kuang H, Sun M, Xu C, Xu X. Computerized analysis of haptens for the ultrasensitive and specific detection of Pyriftalid. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134705. [PMID: 38805812 DOI: 10.1016/j.jhazmat.2024.134705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 05/14/2024] [Accepted: 05/22/2024] [Indexed: 05/30/2024]
Abstract
Pyriftalid (Pyr) is one of the most commonly used herbicides and due to its widespread and improper use, it has led to serious pollution of groundwater, soil and other ecosystems, threatening human health. A rapid method to detect Pyr was urgently needed. A high specific monoclonal antibody (mAb) against Pyr with IC50 values of 4.7 ng/mL was obtained by mAb screening technique and method with enhanced matrix effect. The study firstly proposed colloidal gold immunochromatographic test strips (CGIA) for Pyr, which enables rapid qualitative and quantitative determination of a large number of samples anytime and anywhere, so as to effectively monitor Pyr in environment and grain samples. Based on the properties of the desired Pyr antibody, the hapten Pyr-hapten-4 with high structural similarity to Pyr molecule, similar electrostatic potential distribution, and the ability to expose Pyr functional groups was screened out from five different Pyr haptens, which was consistent with mouse antiserum test. The CGIA quickly analyze the Pyr content in positive samples such as water samples, soil samples, paddy samples, brown rice samples within 10 min, the LOD for Pyr by CGIA as low as 1.84 ng/g, the v LOD value as low as 6 ng/g, and the extinction value as low as 25 ng/g. The content of positive samples detected by CGIA was consistent with the quantitative results of LC-MS/MS, the relative accuracy was within the range of 97-103 %. The recovery rate range for Pyr by CGIA was 92.0-99.7 %, and the coefficient of variation was between 1.30-8.56 %. It indicated Pyr-targeted CGIA test strip was an efficient and fast detection method to detect real environment and food samples.
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Affiliation(s)
- Huihui Wu
- State Key Laboratory of Food Science and Resources, Jiangnan University, International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Aihong Wu
- State Key Laboratory of Food Science and Resources, Jiangnan University, International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Liqiang Liu
- State Key Laboratory of Food Science and Resources, Jiangnan University, International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Hua Kuang
- State Key Laboratory of Food Science and Resources, Jiangnan University, International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Maozhong Sun
- State Key Laboratory of Food Science and Resources, Jiangnan University, International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Chuanlai Xu
- State Key Laboratory of Food Science and Resources, Jiangnan University, International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xinxin Xu
- State Key Laboratory of Food Science and Resources, Jiangnan University, International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.
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2
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Chen H, An L, Li M, Liu H, Jin Z, Ma H, Ma J, Zhou J, Duan R, Zhang D, Cao X, Wang T, Wu X. A self-assembled 3D nanoflowers based nano-ELISA platform for the sensitive detection of pyridaben. Food Chem 2024; 445:138756. [PMID: 38394906 DOI: 10.1016/j.foodchem.2024.138756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/26/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024]
Abstract
Biomimetic methods are invariably employed to synthesize hybrid organic-inorganic multilevel structure nanoflowers with self-assembly processes in aqueous solutions, which is an ideal way to meet the challenges of immobilizing antibodies or enzymes in nanomaterial based enzyme-linked immunosorbent assay (nano-ELISA). In this study, we developed protein-inorganic hybrid 3D nanoflowers composed of bovine serum albumin (BSA), horseradish peroxidase (HRP)-conjugated goat anti-mouse IgG (IgG-HRP) and copper(Ⅱ) phosphate (BSA-(IgG-HRP)-Cu3(PO4)2) using a self-assembly biomimetic method. The preparation process avoided the use of any organic solvent and protein immobilization did not require covalent modifications. Additionally, the unique hierarchical structure enhances the thermal and storage stability of HRP. The BSA-(IgG-HRP)-Cu3(PO4)2 hybrid 3D nanoflower was then applied to a nano-ELISA platform for pyridaben detection, achieving a 50% inhibition concentration of 3.90 ng mL-1. The nano-ELISA achieved excellent accuracy for pyridaben detection. Such a novel BSA-(IgG-HRP)-Cu3(PO4)2 hybrid 3D nanoflower provide an excellent reagent for small molecule immunoassay.
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Affiliation(s)
- He Chen
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Li An
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Meng Li
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Hao Liu
- School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Zhong Jin
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; School of Resources and Environment, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Huan Ma
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Jingwei Ma
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Juan Zhou
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Ran Duan
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Di Zhang
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Xiu Cao
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Tieliang Wang
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Xujin Wu
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China.
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3
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Guo P, Huang K, Chen Z, Xu Z, Ou A, Yin Q, Wang H, Shen X, Zhou K. A Chemiluminescence Enzyme Immunoassay Based on Biotinylated Nanobody and Streptavidin Amplification for Diazinon Sensitive Quantification. BIOSENSORS 2023; 13:577. [PMID: 37366942 DOI: 10.3390/bios13060577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/10/2023] [Accepted: 05/22/2023] [Indexed: 06/28/2023]
Abstract
The advantages of genetic modification and preferable physicochemical qualities make nanobody (Nb) easy to develop a sensitive and stable immunosensor platform. Herein, an indirect competitive chemiluminescence enzyme immunoassay (ic-CLEIA) based on biotinylated Nb was established for the quantification of diazinon (DAZ). The anti-DAZ Nb, named Nb-EQ1, with good sensitivity and specificity, was obtained from an immunized library via a phage display technique, where the molecular docking results indicated that the hydrogen bond and hydrophobic interactions between DAZ and complementarity-determining region 3 and framework region 2 in Nb-EQ1 played a critical role in the Nb-DAZ affinity processes. Subsequently, the Nb-EQ1 was further biotinylated to generate a bi-functional Nb-biotin, and then an ic-CLEIA was developed for DAZ determination via signal amplification of the biotin-streptavidin platform. The results showed that the proposed method based on Nb-biotin had a high specificity and sensitivity to DAZ, with a relative broader linear range of 0.12-25.96 ng/mL. After being 2-folds dilution of the vegetable samples matrix, the average recoveries were 85.7-113.9% with a coefficient of variation of 4.2-19.2%. Moreover, the results for the analysis of real samples by the developed ic-CLEIA correlated well with that obtained by reference method GC-MS (R2 ≥ 0.97). In summary, the ic-CLEIA based on biotinylated Nb-EQ1 and streptavidin recognition demonstrated itself to be a convenient tool for the quantification of DAZ in vegetables.
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Affiliation(s)
- Pengyan Guo
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Kaiyin Huang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
- Institute of Jiangxi Oil-Tea Camellia, Jiujiang University, Jiujiang 332000, China
| | - Zijian Chen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Zhenlin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Aifen Ou
- School of Food Science and Health Preserving, Guangzhou City Polytechnic, Guangzhou 510006, China
| | - Qingchun Yin
- Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou 570314, China
| | - Hong Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Xing Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Kai Zhou
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
- Institute of Jiangxi Oil-Tea Camellia, Jiujiang University, Jiujiang 332000, China
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4
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Chen H, Liu H, Ji Y, Sha Z, An L, Li M, Zhang D, Wu X, Hua X. Monoclonal Antibody-Based Colorimetric Lateral Flow Immunoassay for the Detection of Pyridaben in the Environment. BIOSENSORS 2023; 13:bios13050545. [PMID: 37232906 DOI: 10.3390/bios13050545] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/06/2023] [Accepted: 05/11/2023] [Indexed: 05/27/2023]
Abstract
Pyridaben, a broad-spectrum pyridazinone acaricide that is widely used in agricultural production, can induce neurotoxicity and reproductive abnormalities, and is highly toxic to aquatic organisms. In this study, a pyridaben hapten was synthesized and used to prepare monoclonal antibodies (mAbs), among which 6E3G8D7 showed the highest sensitivity in indirect competitive enzyme-linked immunosorbent assay, with a 50% inhibitory concentration (IC50) of 3.49 ng mL-1. The mAb, 6E3G8D7, was further applied to a gold nanoparticle-based colorimetric lateral flow immunoassay (CLFIA) for pyridaben detection, according to the signal intensity ratio of the test line to the control line, which showed a visual limit of detection of 5 ng mL-1. The CLFIA also showed high specificity and achieved excellent accuracy in different matrices. In addition, the amounts of pyridaben in blind samples detected by the CLFIA, were consistent with high-performance liquid chromatography. Therefore, the developed CLFIA is considered a promising, reliable, and portable method for pyridaben on-site detection in agro-products and environmental samples.
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Affiliation(s)
- He Chen
- Institute of Quality Standard and Testing Technology for Agro-Products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
- Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Hao Liu
- School of Life Sciences, Henan University, Kaifeng 475004, China
| | - Yanran Ji
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Zekun Sha
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Li An
- Institute of Quality Standard and Testing Technology for Agro-Products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
- Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Meng Li
- Institute of Quality Standard and Testing Technology for Agro-Products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
- Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Di Zhang
- Institute of Quality Standard and Testing Technology for Agro-Products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
- Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Xujin Wu
- Institute of Quality Standard and Testing Technology for Agro-Products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
- Key Laboratory of Grain Quality and Safety and Testing Henan Province, Zhengzhou 450002, China
| | - Xiude Hua
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
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Jin Y, Jin Z, Sun D, Peng Y, Zhao Q, He Y, Li J, Zhang Y, Cui Y. Preparation of spirodiclofen monoclonal antibody and establishment of indirect competitive enzyme-linked immunosorbent assay. Food Chem 2023; 417:135936. [PMID: 36934705 DOI: 10.1016/j.foodchem.2023.135936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023]
Abstract
Spirodiclofen, a spirocyclic tetronic acid derivative, has excellent acaricidal effect and is used worldwide to control the majority of important mite species. For monitoring its residue in food and environmental samples, two haptens containing different spacer arms were synthesized, a monoclonal antibody (mAb 5A4) against spirodiclofen was prepared, and a heterologous indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) was established. The 50% inhibition concentration (IC50) of ic-ELISA was 25.46 ng/mL, and the working range was 5.59-133.85 ng/mL. The ic-ELISA showed no cross-reactivity with structural analogs of spirodiclofen and other commonly-used acaricides. The average recoveries from Shiranui citrus samples and Yangtze River water were 85.62%-97.74% and 85.95%-99.30%, respectively. In the analysis of 12 citrus samples, the results of the ic-ELISA were quite similar to those of ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Hence, the new immunosorbent assay provides a substitute method for the qualitative and quantitative of spirodiclofen in food and environmental samples.
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Affiliation(s)
- Yaqi Jin
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing 400712, China
| | - Zihui Jin
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing 400712, China
| | - Di Sun
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing 400712, China
| | - Yilin Peng
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing 400712, China
| | - Qiyang Zhao
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing 400712, China
| | - Yue He
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing 400712, China
| | - Jing Li
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing 400712, China
| | - Yaohai Zhang
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing 400712, China
| | - Yongliang Cui
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing 400712, China.
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Kwon EY, Ruan X, Yu F, Lin Y, Du D, Van Wie BJ. Simultaneous detection of two herbicides in fruits and vegetables with nanoparticle-linked immunosorbent and lateral flow immunoassays. Food Chem 2023; 399:133955. [DOI: 10.1016/j.foodchem.2022.133955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 10/15/2022]
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Huang L, Zhang F, Li F, Jia Y, Wang M, Hua X, Wang L. Development of Ic-ELISA and Colloidal Gold Lateral Flow Immunoassay for the Determination of Cypermethrin in Agricultural Samples. BIOSENSORS 2022; 12:1058. [PMID: 36421176 PMCID: PMC9688530 DOI: 10.3390/bios12111058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/14/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
Cypermethrin (CYP) is an insecticide in the pyrethroid family and is used widely in agriculture and for public health purposes. However, CYP has been shown to have negative impacts on reproduction, immunity and nerves in mammals. In this study, a monoclonal antibody (mAb) against CYP was prepared and used to establish an indirect competitive immunosorbent assay (ic-ELISA) and colloidal gold lateral flow immunoassay (LFIA) for the quantitative and qualitative determination of CYP residues in agricultural products. The half inhibition concentration of the ic-ELISA was 2.49 ng/mL, and the cut-off value and visual limit of detection of the LFIA were 0.6 and 0.3 μg/mL, respectively. The recovery rates of the ic-ELISA ranged from 78.8% to 87.6% in tomato, cabbage and romaine lettuce. The qualitative results of LFIA and quantitative results of ic-ELISA and HPLC were in good agreement in blind samples. Overall, the established ic-ELISA and LFIA proved to be accurate and rapid methods for the determination of CYP in agricultural products.
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Affiliation(s)
- Lianrun Huang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Fuxuan Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Fangxuan Li
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Yin Jia
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Minghua Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Xiude Hua
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Limin Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
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Luo L, Lin SQ, Wu ZY, Wang H, Chen ZJ, Deng H, Shen YD, Zhang WF, Lei HT, Xu ZL. Nanobody-based fluorescent immunoassay using carbon dots anchored cobalt oxyhydroxide composite for the sensitive detection of fenitrothion. JOURNAL OF HAZARDOUS MATERIALS 2022; 439:129701. [PMID: 36104918 DOI: 10.1016/j.jhazmat.2022.129701] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Fenitrothion (FN) residue in food is a serious threat to public health. Consequently, a sensitive, cost-effective, and convenient immunoassay for FN urgently needs to be fabricated to safeguard human health. Herein, a nanobody-alkaline phosphatase fusion protein (Nb-ALP)-based fluorescent ELISA using red emissive carbon dots (r-CDs) anchored cobalt oxyhydroxide nanosheet (CoOOH NS) composite was developed for detecting FN. Briefly, a Nb-ALP was obtained by autoinduction expression and employed as a recognition, signal transduction, and amplification element. As the fluorescence signal source, r-CDs were assembled with CoOOH NS to yield the r-CDs@CoOOH NS composite, leading to the fluorescence quenching of r-CDs via Förster resonance energy transfer (FRET). After competitive immunoreaction, the Nb-ALP bounded to the immobilized antigen can mediate the production of ascorbic acid, which can reduce the CoOOH NS to Co2+, breaking the FRET between r-CDs and CoOOH NS, accompanied by the fluorescence recovery of r-CDs. This fluorescent ELISA is highly sensitive to FN with a detection limit of 0.14 ng mL-1, which is 25-fold lower than that of conventional colorimetric ELISAs. The recovery test of food samples and the validation by GC-MS/MS further demonstrated the proposed assay was an ideal tool for detecting FN.
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Affiliation(s)
- Lin Luo
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Shi-Qi Lin
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Zhuo-Yu Wu
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Hong Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Zi-Jian Chen
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Hao Deng
- Key Laboratory of Tropical Fruit and Vegetable Cold-chain of Hainan Province / Institute of Agro-products Processing and Design, Hainan Academy of Agricultural Sciences, Haikou 570100, China
| | - Yu-Dong Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Wen-Feng Zhang
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center of Rapid Testing Instrument for Food Nutrition and Safety, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China
| | - Hong-Tao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Zhen-Lin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China.
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Fan S, Ma J, Li C, Wang Y, Zeng W, Li Q, Zhou J, Wang L, Wang Y, Zhang Y. Determination of Tropomyosin in Shrimp and Crab by Liquid Chromatography–Tandem Mass Spectrometry Based on Immunoaffinity Purification. Front Nutr 2022; 9:848294. [PMID: 35308292 PMCID: PMC8927901 DOI: 10.3389/fnut.2022.848294] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/02/2022] [Indexed: 01/13/2023] Open
Abstract
A UPLC-MS/MS method was developed for the detection of tropomyosin (TM) in shrimp and crab. After simple extraction, the samples were purified by immunoaffinity column and then digested by trypsin. The obtained sample was separated by Easy-nLC 1000-Q Exactive. The obtained spectrums were analyzed by Thermo Proteome Discoverer 1.4 software and then ANIQLVEK with high sensitivity was selected as the quantitative signature peptide. Isotope-labeled internal standard was used in the quantitative analysis. The method showed good linearity in the range of 5–5,000 μg/L with a limit of quantification (LOQ) of 0.1 mg/kg. The average recoveries were 77.22–95.66% with RSDs ≤ 9.97%, and the matrix effects were between 88.53 and 112.60%. This method could be used for rapid screening and quantitative analysis of TM in shrimp and crab. Thus, it could provide technical support for self-testing of TM by food manufacturers and promote further improvement of allergen labeling in China.
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Affiliation(s)
- Sufang Fan
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Food Inspection and Research Institute, Shijiazhuang, China
| | - Junmei Ma
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Food Inspection and Research Institute, Shijiazhuang, China
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Chunsheng Li
- Biology Institute of Hebei Academy of Science, Shijiazhuang, China
| | - Yanbo Wang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Wen Zeng
- Department of Chemical Engineering, Key Laboratory for Industrial Biocatalysis, Ministry of Education of China, Tsinghua University, Beijing, China
| | - Qiang Li
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Food Inspection and Research Institute, Shijiazhuang, China
| | - Jinru Zhou
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Liming Wang
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Food Inspection and Research Institute, Shijiazhuang, China
| | - Yi Wang
- Department of Chemical Engineering, Key Laboratory for Industrial Biocatalysis, Ministry of Education of China, Tsinghua University, Beijing, China
- Yi Wang
| | - Yan Zhang
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Food Inspection and Research Institute, Shijiazhuang, China
- Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang, China
- *Correspondence: Yan Zhang
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10
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Chen B, Shen X, Li Z, Wang J, Li X, Xu Z, Shen Y, Lei Y, Huang X, Wang X, Lei H. Antibody Generation and Rapid Immunochromatography Using Time-Resolved Fluorescence Microspheres for Propiconazole: Fungicide Abused as Growth Regulator in Vegetable. Foods 2022; 11:foods11030324. [PMID: 35159475 PMCID: PMC8834100 DOI: 10.3390/foods11030324] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 01/21/2022] [Accepted: 01/21/2022] [Indexed: 02/01/2023] Open
Abstract
Propiconazole (PCZ) is a fungicide popularly used to prevent and control wheat and rice bakanae disease, etc. However, it was recently found to be illegally employed as a plant regulator to induce thick stems and dark green leaves of Brassica campestris, a famous vegetable in Guangdong, South China. Due to a lack of available recognition molecules to the target analyte, it is still a big challenge to establish a rapid surveillance screening method. In this study, a novel chiral hapten was rationally designed, and an artificial immunogen was then prepared for the generation of a specific antibody against propiconazole for the first time. Using the obtained antibody, a highly sensitive time-resolved fluorescence microspheres lateral flow immunochromatographic assay (TRFMs-LFIA) was established with a visual limit of detection of 100 ng/mL and a quantitative limit of detection of 1.92 ng/mL for propiconazole. TRFMs-LFIA also exhibited good recoveries ranging from 78.6% to 110.7% with coefficients of variation below 16%. The analysis of blind real-life samples showed a good agreement with results obtained using HPLC-MS/MS. Therefore, the proposed method could be used as an ideal screening surveillance tool for the detection of propiconazole in vegetables.
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Affiliation(s)
- Bo Chen
- Guangdong Province Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (B.C.); (X.S.); (J.W.); (X.L.); (Z.X.); (Y.S.)
| | - Xing Shen
- Guangdong Province Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (B.C.); (X.S.); (J.W.); (X.L.); (Z.X.); (Y.S.)
| | - Zhaodong Li
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China;
| | - Jin Wang
- Guangdong Province Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (B.C.); (X.S.); (J.W.); (X.L.); (Z.X.); (Y.S.)
| | - Xiangmei Li
- Guangdong Province Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (B.C.); (X.S.); (J.W.); (X.L.); (Z.X.); (Y.S.)
| | - Zhenlin Xu
- Guangdong Province Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (B.C.); (X.S.); (J.W.); (X.L.); (Z.X.); (Y.S.)
| | - Yudong Shen
- Guangdong Province Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (B.C.); (X.S.); (J.W.); (X.L.); (Z.X.); (Y.S.)
| | - Yi Lei
- Guangdong Institute of Food Inspection, Zengcha Road, Guangzhou 510435, China;
| | - Xinan Huang
- Tropical Medicine Institute and South China Chinese Medicine Collaborative Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China;
| | - Xu Wang
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510405, China;
| | - Hongtao Lei
- Guangdong Province Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (B.C.); (X.S.); (J.W.); (X.L.); (Z.X.); (Y.S.)
- Correspondence: ; Tel.: +86-20-8528-3925; Fax: +86-20-8528-0270
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