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Han X, Lin H, Chen X, Wang L, Zhang Z, Wei X, Sun X, Xie H, Pavase TR, Cao L, Sui J. Amide-containing neoepitopes: the key factor in the preparation of hapten-specific antibodies and a strategy to overcome. Front Immunol 2023; 14:1144020. [PMID: 37342337 PMCID: PMC10277511 DOI: 10.3389/fimmu.2023.1144020] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 05/15/2023] [Indexed: 06/22/2023] Open
Abstract
For a long time, people have suffered from uncertainty, complexity, and a low success rate in generating and screening antibodies against small molecules, which have become the core bottlenecks of immunochemistry. Here, the influence of antigen preparation on antibody generation was investigated at both molecular and submolecular levels. Neoepitopes (amide-containing neoepitopes) formed in the preparation of complete antigens are one of the most important factors limiting the efficiency of generating hapten-specific antibodies, which was verified by different haptens, carrier proteins, and conjugation conditions. Amide-containing neoepitopes present electron-dense structural components on the surface of prepared complete antigens and, therefore, induce the generation of the corresponding antibody with much higher efficiency than target hapten. Crosslinkers should be carefully selected and not overdosed. According to these results, some misconceptions in the conventional anti-hapten antibody production were clarified and corrected. By controlling the content of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) during the synthesis of immunogen to limit the formation of amide-containing neoepitopes, the efficiency of hapten-specific antibody generation could be significantly improved, which verified the correctness of the conclusion and provided an efficient strategy for antibody preparation. The result of the work is of scientific significance in the preparation of high-quality antibodies against small molecules.
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Affiliation(s)
- Xiangning Han
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Hong Lin
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Xiangfeng Chen
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Luefeng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Ziang Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Xiaojing Wei
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Xun Sun
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Hanyi Xie
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Tushar Ramesh Pavase
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Limin Cao
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Jianxin Sui
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
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Preparation of Monoclonal Antibody against Pyrene and Benzo [a]pyrene and Development of Enzyme-Linked Immunosorbent Assay for Fish, Shrimp and Crab Samples. Foods 2022; 11:3220. [PMCID: PMC9602326 DOI: 10.3390/foods11203220] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are significant environmental and food pollutants that can cause cancer. In this work, a specific monoclonal antibody (mAb) to identify pyrene (PYR) and benzo [a]pyrene (BaP) was prepared, and an indirect competitive enzyme-linked immunoassay (ic-ELISA) was established to detect PYR and BaP residues in living aquatic products for the first time. The effects of complete antigens with different coupling ratios on the production of high-sensitivity mAb was explored. Under the optimal conditions, the IC50 value was 3.73 ± 0.43 µg/L (n = 5). The limits of detection (LODs) for PYR and BaP in fish, shrimp, and crab ranged from 0.43 to 0.98 µg/L. The average recoveries of the spiked samples ranged from 81.5–101.9%, and the coefficient of variation (CV) was less than 11.7%. The validation of the HPLC-FLD method indicated that the ELISA method set up in this experiment provided a trustworthy tool for PAHs residues detection in aquatic products.
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3
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Electrofusion preparation of anti-triazophos monoclonal antibodies for development of an indirect competitive enzyme-linked immunosorbent assay. J Immunol Methods 2021; 500:113184. [PMID: 34808129 DOI: 10.1016/j.jim.2021.113184] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 10/04/2021] [Accepted: 11/07/2021] [Indexed: 11/22/2022]
Abstract
Immunoassays have been widely used to detect small molecular contaminants due to the advantages of simplicity, high throughout and low-cost. Antibodies are essential reagents of immunoassays, their quality directly determines the characteristics of immunoassays. In this study, the monoclonal antibodies (mAbs) of triazophos were prepared by electrofusion, and used to develop an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA). Under the optimal electrofusion conditions (cells treatment with pronase, the alternating electric field strength of 45 V cm-1, the direct current voltage of 3 kV), the fusion efficiency was 1.104 ± 0.063‱, which was improved more than 4-fold compared with the chemical fusion method (0.255 ± 0.089‱). Three hybrid cell lines that can stably secrete the anti-triazophos mAbs were obtained. The cell line 4G6F10 showed the highest sensitivity, which was used to generate mAb and develop an ic-ELISA. After optimization, the 50% inhibition concentration (IC50), limit of detection (LOD) and linear range (IC10-IC90) of the ic-ELISA were 0.32 ng mL-1, 0.08 ng mL-1 and 0.08-2.17 ng mL-1, respectively. There was no significant cross-reactivity with the analogues of triazophos. The average recoveries of triazophos in spiked samples were 77.5%-89.3% with the relative standard deviations of 0.1%-9.2%. In addition, the ic-ELISA showed good repeatability, reproducibility and accuracy for the analysis of apple samples spiked with triazophos.
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Zeng L, Guo L, Wang Z, Xu X, Song S, Xu L, Kuang H, Li A, Xu C. Immunoassays for the rapid detection of pantothenic acid in pharmaceutical and food products. Food Chem 2021; 348:129114. [PMID: 33516998 DOI: 10.1016/j.foodchem.2021.129114] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 01/06/2021] [Accepted: 01/11/2021] [Indexed: 01/27/2023]
Abstract
Pharmaceutical and food products are fortified with pantothenic acid (PA) to address potential deficiency. Therefore, its fast, reliable, and accurate detection is of great importance to the quality control. Here, an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and a gold nanoparticle-based lateral flow immunoassay (LFIA) were established for the determination of PA based on an anti-PA monoclonal antibody (mAb). The ic-ELISA displayed a limit of detection (LOD) of 32.22 ng/mL, and the linear range was 64.44-628.84 ng/mL. Average recoveries of PA in fortified samples were 88.60-110.11% when using the ic-ELISA and a good correlation between the ic-ELISA and LC-MS/MS was obtained when analyzing samples. Furthermore, the developed LFIA strip showed a calculated LOD of 71.99, 115.80, and 240.12 ng/mL in B-complex Vitamin tablets, energy drink and infant milk powder samples, respectively. All the results demonstrated that both of these immunoassays are suitable for determining PA in pharmaceutical and food products.
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Affiliation(s)
- Lu Zeng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China; International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, PR China
| | - Lingling Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China; International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, PR China
| | - Zhongxing Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China; International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, PR China
| | - Xinxin Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China; International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, PR China
| | - Shanshan Song
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China; International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, PR China
| | - Liguang Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China; International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, PR China
| | - Hua Kuang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China; International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, PR China.
| | - Aike Li
- Academy of National Food and Strategic Reserves Administration, No.11 Baiwanzhuang Street, Beijing 100037, PR China.
| | - Chuanlai Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China; International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, PR China
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5
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Emerging strategies to enhance the sensitivity of competitive ELISA for detection of chemical contaminants in food samples. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115861] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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6
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Zeng L, Wu X, Liu L, Xu L, Kuang H, Xu C. Production of a monoclonal antibody for the detection of vitamin B1 and its use in an indirect enzyme-linked immunosorbent assay and immunochromatographic strip. J Mater Chem B 2020; 8:1935-1943. [DOI: 10.1039/c9tb02839k] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A monoclonal antibody (mAb) against vitamin B1 was prepared and based on this, an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and colloidal gold-based immunochromatographic test (ICT) strip were developed.
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Affiliation(s)
- Lu Zeng
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- People's Republic of China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology
| | - Xaioling Wu
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- People's Republic of China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology
| | - Liqiang Liu
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- People's Republic of China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology
| | - Liguang Xu
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- People's Republic of China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology
| | - Hua Kuang
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- People's Republic of China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology
| | - Chuanlai Xu
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- People's Republic of China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology
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7
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Guo L, Liu L, Cui G, Ma S, Wu X, Kuang H. Gold immunochromatographic assay for kitasamycin and josamycin residues screening in milk and egg samples. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2019.1677567] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Lingling Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Liqiang Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Gang Cui
- Yancheng Teachers University, Yancheng, People’s Republic of China
| | - Shufeng Ma
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Xiaoling Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Hua Kuang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
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8
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Guo L, Liu L, Xu L, Kuang H, Cui G, Xu C. Gold Immunochromatography Assay for the Rapid Detection of Spiramycin in Milk and Beef Samples Based on a Monoclonal Antibody. Biotechnol J 2019; 15:e1900224. [DOI: 10.1002/biot.201900224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/15/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Lingling Guo
- State Key Laboratory of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
| | - Liqiang Liu
- State Key Laboratory of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
| | - Liguang Xu
- State Key Laboratory of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
| | - Hua Kuang
- State Key Laboratory of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
| | - Gang Cui
- Department of BiotechnologyYancheng Teachers University Yancheng 22400 P. R. China
| | - Chuanlai Xu
- State Key Laboratory of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
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9
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Qu J, Xie H, Zhang S, Luo P, Guo P, Chen X, Ke Y, Zhuang J, Zhou F, Jiang W. Multiplex Flow Cytometric Immunoassays for High-Throughput Screening of Multiple Mycotoxin Residues in Milk. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-018-01412-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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10
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2013-2014. MASS SPECTROMETRY REVIEWS 2018; 37:353-491. [PMID: 29687922 DOI: 10.1002/mas.21530] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 11/29/2016] [Indexed: 06/08/2023]
Abstract
This review is the eighth update of the original article published in 1999 on the application of Matrix-assisted laser desorption/ionization mass spectrometry (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2014. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation, and arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly- saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Much of this material is presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. © 2018 Wiley Periodicals, Inc. Mass Spec Rev 37:353-491, 2018.
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Affiliation(s)
- David J Harvey
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford, OX3 7FZ, United Kingdom
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11
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Wang Z, Wen K, Zhang X, Li X, Wang Z, Shen J, Ding S. New Hapten Synthesis, Antibody Production, and Indirect Competitive Enzyme-Linked Immnunosorbent Assay for Amantadine in Chicken Muscle. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-1000-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Wang Z, Beier RC, Shen J. Immunoassays for the detection of macrocyclic lactones in food matrices – A review. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.04.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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13
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Jiang W, Beloglazova NV, Luo P, Guo P, Lin G, Wang X. A Dual-Color Quantum Dots Encoded Frit-Based Immunoassay for Visual Detection of Aflatoxin M 1 and Pirlimycin Residues in Milk. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:1822-1828. [PMID: 28190349 DOI: 10.1021/acs.jafc.6b05337] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Mycotoxins and antibacterial agents are the main chemical hazards that lead to several health problems. Nowadays, multiplex immunoassay is a primary goal throughout the world. Here, aflatoxin M1 and pirlimycin were selected as models, and a novel dual colorimetric encoded frit-based immunoassay was developed for simultaneously screening of aflatoxin M1 and pirlimycin residues in milk. This multiplex frit-based immunoassay combined two monoclonal antibodies to extend the spectrum of analytes and to enable detection of two classes of analytes in a single test. The cutoff values were 0.02 μg/kg for aflatoxin M1 and 0.5 μg/kg for pirlimycin, which satisfied the requirement to measure the maximum residue levels. The novel colorimetric frit-based immunoassay has the advantage of high throughput, short analysis time, reduced overall cost per assay, and can be used as a rapid screening technique for simultaneously detecting aflatoxin M1 and pirlimycin residues in milk.
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Affiliation(s)
- Wenxiao Jiang
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Sciences Center , Shenzhen 518060, China
| | - Natalia V Beloglazova
- Laboratory of Food Analysis, Department of Bioanalysis, Ghent University , Harelbekestraat 72, B-9000 Ghent, Belgium
| | - Pengjie Luo
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, China National Center for Food Safety Risk Assessment , Beijing 100021, China
| | - Ping Guo
- Technology Center of JiangXi Entry-Exit Inspection and Quarantine Bureau, Nanchang 330038, China
| | - Guimiao Lin
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Sciences Center , Shenzhen 518060, China
| | - Xiaomei Wang
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Sciences Center , Shenzhen 518060, China
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14
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Zhu Y, Liu CL, Xie ZJ, Liu LQ, Peng CF, Xue F. Botryoid-shaped nanoparticles-enhanced ELISA for ochratoxin A. FOOD AGR IMMUNOL 2016. [DOI: 10.1080/09540105.2016.1266602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Yan Zhu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Chun-Li Liu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Zheng-Jun Xie
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Li-Qiang Liu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Chi-Fang Peng
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Feng Xue
- Animal, Plant and Food Inspection Center, Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing, People’s Republic of China
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15
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Schumacher S, Seitz H. A novel immunoassay for quantitative drug abuse screening in serum. J Immunol Methods 2016; 436:34-40. [DOI: 10.1016/j.jim.2016.06.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 06/21/2016] [Accepted: 06/21/2016] [Indexed: 01/10/2023]
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16
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Multi-residue fluorescent microspheres immunochromatographic assay for simultaneous determination of macrolides in raw milk. Anal Bioanal Chem 2015; 407:9125-33. [PMID: 26497839 DOI: 10.1007/s00216-015-9078-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 09/20/2015] [Accepted: 09/23/2015] [Indexed: 12/25/2022]
Abstract
A rapid, reliable, sensitive, and quantitative multi-residue fluorescent microspheres immunochromatographic assay (FMCA) was developed for simultaneous detection of four macrolides in raw milk. The IC50 value of the optimized FMCA was 1.36, 1.22, 1.01, and 1.39 ng/mL for erythromycin (ERY), spiramycin (SPI), tilmicosin (TIM), and tylosin (TYL), respectively. The limits of detection (LODs) for the four macrolides was 0.13 ng/mL. The recoveries of ERY, SPI, TIM, and TYL from spiked raw milk ranged from 91.8-109.2, 89.6-114.4, 84.8-111.6, and 85.8-115.2%, respectively, with coefficients of variation (CVs) of 5.4-11.3, 7.9-15.7, 6.2-13.7, and 3.2-14.9%, respectively. The whole testing process was completed within 20 min. The antibody-mixed labeled method was successfully applied to the FMCA, which greatly simplified the operation steps and saved a lot of time. Compared with the immunogold chromatographic assay (IGCA), the FMCA is more sensitive and stable and has less antibody consumption. A parallel analysis in blind raw milk samples was conducted by liquid chromatography-tandem mass spectrometry (LC-MS/MS); the results showed good correlation (r(2) = 0.99) between the two methods. Therefore, the developed multi-residue FMCA is reliable and can be easily applied to other antibiotics or other contaminants.
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17
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Wang Z, Song X, Zhou T, Bian K, Zhang F, He L, Liu Q. Simultaneous determination of ten macrolides drugs in feeds by high performance liquid chromatography with evaporation light scattering detection. RSC Adv 2015. [DOI: 10.1039/c4ra12623h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Simultaneous determination of ten macrolides drugs using HPLC-ELSD.
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Affiliation(s)
- Zongnan Wang
- National Reference Laboratory of Veterinary Drug Residues (SCAU)
- College of Veterinary Medicine
- South China Agricultural University
- Guangzhou
- China
| | - Xuqin Song
- National Reference Laboratory of Veterinary Drug Residues (SCAU)
- College of Veterinary Medicine
- South China Agricultural University
- Guangzhou
- China
| | - Tong Zhou
- National Reference Laboratory of Veterinary Drug Residues (SCAU)
- College of Veterinary Medicine
- South China Agricultural University
- Guangzhou
- China
| | - Kui Bian
- National Reference Laboratory of Veterinary Drug Residues (SCAU)
- College of Veterinary Medicine
- South China Agricultural University
- Guangzhou
- China
| | - Fangyu Zhang
- Centre of Veterinary Drug Residues (MOA)
- South China Agricultural University
- Guangzhou
- China
| | - Limin He
- National Reference Laboratory of Veterinary Drug Residues (SCAU)
- College of Veterinary Medicine
- South China Agricultural University
- Guangzhou
- China
| | - Qingying Liu
- National Reference Laboratory of Veterinary Drug Residues (SCAU)
- College of Veterinary Medicine
- South China Agricultural University
- Guangzhou
- China
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18
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Zhou J, Zhu K, Xu F, Wang W, Jiang H, Wang Z, Ding S. Development of a microsphere-based fluorescence immunochromatographic assay for monitoring lincomycin in milk, honey, beef, and swine urine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:12061-12066. [PMID: 25290082 DOI: 10.1021/jf5029416] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The residue of lincomycin (LIN) in edible animal foodstuffs caused by the widespread use of veterinary drugs is in need of rapid, simple, and sensitive detection methods. The present work introduces a fluorescent microsphere immunoassay (FMIA) for detecting LIN in different samples based on the competitive immunoreaction on the chromatography test strip. The residues of LIN in different samples compete with bovine serum albumin (BSA) labeled LIN conjugates on the T-line to bind to the anti-LIN monoclonal antibody labeled fluorescent microspheres (FM-mAbs). Captured FM-mAbs on the T-line represent the fluorescent intensity, which is detected under UV light and quantified by a fluorescent reader. Under optimized conditions, the dynamic range is from 1.35 to 3.57 ng/mL, and the 50% inhibition concentration (IC50) is 2.20 ng/mL. This method has 4.4% cross-reactivity with clindamycin and negligible cross-reactivity (<0.1%) with other analogues. To reduce the matrix effects, a dilution method is used to pretreat the samples, and the recoveries range from 73.92 to 120.50% with coefficient of variations <21.76%. In comparison with the results of ELISA and colloidal gold immunoassay, FMIA has obvious advantages such as easy operation, time savings, high sensitivity and specificity, and broader prospect.
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Affiliation(s)
- Jie Zhou
- National Reference Laboratory for Veterinary Drug Residues, Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University , Beijing 100193, China
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