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Zha Y, Li Y, Zhou J, Liu X, Park KS, Zhou Y. Dual-Mode Fluorescent/Intelligent Lateral Flow Immunoassay Based on Machine Learning Algorithm for Ultrasensitive Analysis of Chloroacetamide Herbicides. Anal Chem 2024; 96:12197-12204. [PMID: 38990191 DOI: 10.1021/acs.analchem.4c02500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
Given the harmful effect of pesticide residues, it is essential to develop portable and accurate biosensors for the analysis of pesticides in agricultural products. In this paper, we demonstrated a dual-mode fluorescent/intelligent (DM-f/DM-i) lateral flow immunoassay (LFIA) for chloroacetamide herbicides, which utilized horseradish peroxidase-IgG conjugated time-resolved fluorescent nanoparticle probes as both a signal label and amplification tool. With the newly developed LFIA in the DM-f mode, the limits of detection (LODs) were 0.08 ng/mL of acetochlor, 0.29 ng/mL of metolachlor, 0.51 ng/mL of Propisochlor, and 0.13 ng/mL of their mixture. In the DM-i mode, machine learning (ML) algorithms were used for image segmentation, feature extraction, and correlation analysis to obtain multivariate fitted equations, which had high reliability in the regression model with R2 of 0.95 in the range of 2 × 102-2 × 105 pg/mL. Importantly, the practical applicability was successfully validated by determining chloroacetamide herbicides in the corn sample with good recovery rates (85.4 to 109.3%) that correlate well with the regression model. The newly developed dual-mode LFIA with reduced detection time (12 min) holds great potential for pesticide monitoring in equipment-limited environments using a portable test strip reader and laboratory conditions using ML algorithms.
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Affiliation(s)
- Yonghong Zha
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-Sen University, Shenzhen 518107, China
| | - Yansong Li
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Jianhua Zhou
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-Sen University, Shenzhen 518107, China
| | - Xiaolan Liu
- Shenzhen Media Digital Technology Co. Ltd, Shenzhen 518038, China
| | - Ki Soo Park
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yu Zhou
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
- College of Animal Science and Technology, Yangtze University, Jingzhou 434025, China
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Shen X, Zhang Y, Xu J, Yu X, Bai W, Huang X, Lei H. Central Chirality and Axial Chirality Recognition of the Enantioselective Antibodies to Herbicide Metolachlor. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:10055-10064. [PMID: 38634336 DOI: 10.1021/acs.jafc.4c00860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Enantioselective antibodies have emerged as efficient tools in the field of chiral chemical detection and separation. However, it is complicated to obtain a highly stereoselective antibody due to the unclear recognition mechanism. In this study, the hapten of metolachlor was synthesized and enantio-separated. The absolute configuration of the four haptens obtained was identified by the computed and experimental electronic circular dichroism comparison. Five polyclonal antibodies against the Rac-metolachlor and its enantiomers were generated by immunization. The cross-activity of all the 5 antibodies with 44 structural analogues, including metolachlor enantiomers, was tested. It demonstrated that antibodies have higher specificity to recognize central chirality than axial chirality. Especially, αRR-MET-Ab exhibited excellent specificity and stereoselectivity. Accordingly, 3D-QSAR models were constructed and revealed that paired stereoisomers exhibited opposite interactions with the antibodies. It is the first time that the antibodies against four stereoisomers were prepared and analyzed, which will be conducive to the rational design of the stereoselective antibodies.
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Affiliation(s)
- Xing Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Yan Zhang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - JingJing Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - XiaoTing Yu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - WenMing Bai
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Xinan Huang
- Institute of Tropical Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510400, China
| | - HongTao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
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Li Z, Wu Y, Li Z, Yu B, Mao X, Shi G. A lateral flow immunoassay method for the rapid detection of acetochlor and alachlor in vegetable oil by sensitivity enhancement by using dimethyl-β-cyclodextrin. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:5087-5094. [PMID: 37747357 DOI: 10.1039/d3ay01379k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Acetochlor is an endocrine disruptor. The acetochlor residue is strongly lipophilic and can be enriched into products during the manufacturing process. In this study, we found that dimethyl-β-cyclodextrin (DM-β-CD) solution could decrease the apparent oil/water partition coefficient (Koil-w) of acetochlor and increase the sensitivity of fluorescence lateral flow immunoassay (LFIA) for acetochlor simultaneously. Based on this, a simple LFIA method for the determination of acetochlor and alachlor residues in vegetable oil was established. The detection process only involves vortex mixing of an oil sample and dimethyl-β-cyclodextrin solution in a 1 : 3 (V/V) ratio, loading the water phase onto the immunoassay strips and reading the results. Under optimized conditions, the LOD for acetochlor in oil was 3.53 ng g-1, and the working range was 12.03-2000.00 ng g-1. The recoveries of spiked samples ranged from 91.69% ± 1.12% to 112.23% ± 2.20%. Meanwhile, the cross reactivity for alachlor was 108.22%, while for other investigated acetochlor analogues it was less than 1%, and the recoveries of alachlor were from 92.90% ± 8.03% to 113.53% ± 3.40%, which indicate that this method can detect acetochlor and alachlor simultaneously. Compared with the traditional detection method, the pre-treatment process of the proposed method is "green" and simple, and can be applied to the on-site rapid detection of acetochlor and alachlor in vegetable oil and can provide inspiration for the detection of other lipophilic pollutants.
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Affiliation(s)
- Zepeng Li
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
| | - Yuxiang Wu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, Shandong Province, China
| | - Zijing Li
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
| | - Binger Yu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
| | - Xinyi Mao
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
| | - Guoqing Shi
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
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Liu H, Xie L, Wang Y, Liu Y, Fu R, Cui Y, Zhao Q, Wang C, Jiao B, He Y. Construction of a portable immunosensor for the sensitive detection of carbendazim in agricultural products using a personal glucose meter. Food Chem 2023; 407:135161. [PMID: 36502732 DOI: 10.1016/j.foodchem.2022.135161] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 11/26/2022] [Accepted: 12/04/2022] [Indexed: 12/12/2022]
Abstract
Portable and sensitive detection of carbendazim (CBD) is highly desirable for food safety and environmental protection. Herein, a portable immunosensor for the sensitive detection of CBD is proposed based on alkaline phosphatase (ALP)-labeled and secondary antibody-modified gold nanoparticles (AuNPs). The quantification is based on ALP catalyzing the dephosphorylation of glucose-1-phosphate disodium salt to generate glucose, thus converting the concentration of CBD into glucose, thereby realizing the portable detection of CBD by personal glucose meter. Benefiting from signal amplification strategy that integrates the large specific surface area of AuNPs, the enzymatic reactions of terminal deoxynucleotidyl transferase and ALP, a low detection limit of 0.37 ng/mL for CBD is achieved. When this portable method is used to analyze citrus fruit, canned citrus, and cabbage, good-consistency results are obtained with the UPLC-MS/MS method. The good performance demonstrates the great potential of this portable method for CBD monitoring in resource-poor settings.
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Affiliation(s)
- Haoran Liu
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, PR China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture and Rural Affairs, Citrus Research Institute, Southwest University, Chongqing 400712, PR China; National Citrus Engineering Research Center, Chongqing 400712, PR China
| | - Longyingzi Xie
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, PR China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture and Rural Affairs, Citrus Research Institute, Southwest University, Chongqing 400712, PR China; National Citrus Engineering Research Center, Chongqing 400712, PR China
| | - Yiwen Wang
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, PR China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture and Rural Affairs, Citrus Research Institute, Southwest University, Chongqing 400712, PR China; National Citrus Engineering Research Center, Chongqing 400712, PR China
| | - Yanlin Liu
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, PR China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture and Rural Affairs, Citrus Research Institute, Southwest University, Chongqing 400712, PR China; National Citrus Engineering Research Center, Chongqing 400712, PR China
| | - Ruijie Fu
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, PR China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture and Rural Affairs, Citrus Research Institute, Southwest University, Chongqing 400712, PR China; National Citrus Engineering Research Center, Chongqing 400712, PR China
| | - Yongliang Cui
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, PR China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture and Rural Affairs, Citrus Research Institute, Southwest University, Chongqing 400712, PR China; National Citrus Engineering Research Center, Chongqing 400712, PR China
| | - Qiyang Zhao
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, PR China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture and Rural Affairs, Citrus Research Institute, Southwest University, Chongqing 400712, PR China; National Citrus Engineering Research Center, Chongqing 400712, PR China
| | - Chengqiu Wang
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, PR China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture and Rural Affairs, Citrus Research Institute, Southwest University, Chongqing 400712, PR China; National Citrus Engineering Research Center, Chongqing 400712, PR China.
| | - Bining Jiao
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, PR China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture and Rural Affairs, Citrus Research Institute, Southwest University, Chongqing 400712, PR China; National Citrus Engineering Research Center, Chongqing 400712, PR China.
| | - Yue He
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, PR China; Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture and Rural Affairs, Citrus Research Institute, Southwest University, Chongqing 400712, PR China; National Citrus Engineering Research Center, Chongqing 400712, PR China.
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Based on intervening PCR for detection of alkaline phosphatase and zearalenone. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Zha Y, Li Y, Hu P, Lu S, Ren H, Liu Z, Yang H, Zhou Y. Duplex-Specific Nuclease-Triggered Fluorescence Immunoassay Based on Dual-Functionalized AuNP for Acetochlor, Metolachlor, and Propisochlor. Anal Chem 2021; 93:13886-13892. [PMID: 34623153 DOI: 10.1021/acs.analchem.1c02736] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Given the great harm of pesticide residues to the environment and public health, exploring ultrasensitive and low-cost methods for their quantitative analysis becomes intensely necessary. Herein, we proposed a double-functionalized gold nanoparticle (AuNP) probe as a signal amplification immunoassay for the detection of acetochlor (ATC), metolachlor, and propisochlor. The AuNP was modified with IgG and fluorophore-labeled duplex DNA by a polyadenine-based freezing method. The quenched fluorescence can be effectively recovered via duplex-specific nuclease (DSN) with excellent cleaving activity. This approach provided limits of detection (LODs) down to 0.03 ng/mL for ATC, 0.10 ng/mL for metolachlor, 0.14 ng/mL for propisochlor, and 0.08 ng/mL for their mixture. The average recoveries of ATC, metolachlor, and propisochlor were 93.0-106.6% from a corn sample, which are in good agreement with the commercial kit (R2 = 0.9995). This "turn-off" fluorescence immunoassay presents considerable potential in the analysis of chloroacetamide herbicide due to its simple process of probe preparing and ultrahigh sensitivity.
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Affiliation(s)
- Yonghong Zha
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Yansong Li
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Pan Hu
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Shiying Lu
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Honglin Ren
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Zengshan Liu
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Hualin Yang
- College of Life Science, Yangtze University, Jingzhou 434023, P. R. China
| | - Yu Zhou
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China.,College of Animal Science, Yangtze University, Jingzhou 434023, P. R. China
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Zha Y, Lu S, Hu P, Ren H, Liu Z, Gao W, Zhao C, Li Y, Zhou Y. Dual-Modal Immunosensor with Functionalized Gold Nanoparticles for Ultrasensitive Detection of Chloroacetamide Herbicides. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6091-6098. [PMID: 33512133 DOI: 10.1021/acsami.0c21760] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Convenient and ultrasensitive detection of pesticides is demanded for healthcare and environmental monitoring, which can be realized with a dual-modal strategy. In this paper, based on a biotin-labeled IgG-modified gold nanoparticle (AuNP@IgG-bio) probe, a dual-modal immunosensor was proposed for detecting chloroacetamide herbicides. This platform is relied on the dephosphorylation of ascorbic acid 2-phosphate (AA2P) by alkaline phosphatase (ALP). In addition to this process, ascorbic acid (AA)-triggered deposition of silver on gold nanostars (AuNSs) and the fluorogenic reaction of dehydrogenated AA and o-phenylenediamine (OPD) occur sequentially. Thus, the dual readout of the color change of red-green-blue (RGB) and fluorescence generation in situ induced by crystal growth can be used. The limits of detection (LODs) were as low as 1.20 ng/mL of acetochlor (ATC), 0.89 ng/mL of metolachlor, 1.22 ng/mL of propisochlor, and 0.99 ng/mL of their mixture by a smartphone and 0.44 ng/mL of ATC, 1.59 ng/mL of metolachlor, 2.80 ng/mL of propisochlor, and 0.72 ng/mL of their mixture by a spectrofluorometer. The recoveries from corn were 91.4-105.1% of the colorimetric mode and 92.4-106.2% of the fluorescent mode. Due to its simple observation mode and good performance, this dual-modal immunosensor possesses considerable application prospects.
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Affiliation(s)
- Yonghong Zha
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Shiying Lu
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Pan Hu
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Honglin Ren
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Zengshan Liu
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Weihua Gao
- College of Animal Science, Yangtze University, Jingzhou 434023, P. R. China
| | - Chengmin Zhao
- Jingzhou Zhongqiao Biotechnoogy Co., Ltd., Jingzhou 434023, P. R. China
| | - Yansong Li
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
| | - Yu Zhou
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, P. R. China
- College of Animal Science, Yangtze University, Jingzhou 434023, P. R. China
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