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Guo M, Pang J, Wang Y, Bi C, Xu Z, Shen Y, Yang J, Wang H, Sun Y. Nanobodies-based colloidal gold immunochromatographic assay for specific detection of parathion. Anal Chim Acta 2024; 1310:342717. [PMID: 38811143 DOI: 10.1016/j.aca.2024.342717] [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: 01/28/2024] [Revised: 05/06/2024] [Accepted: 05/09/2024] [Indexed: 05/31/2024]
Abstract
Parathion is one of organophosphorus pesticide, which has been prohibited in agricultural products due to its high toxicity to human beings. However, there are still abuse cases for profit in agricultural production. Hence, we established nanobodies-based colloidal gold immunochromatographic assay (GICA) in which nanobodies (Nbs) as an excellent recognition element, greatly improving the stability and sensitivity of ICA. Under the optimal conditions, the developed Nbs-based GICA showed a cut-off value of 50 ng/mL for visual judgment and a half-inhibitory concentration (IC50) of 2.39 ng/mL for quantitative detection. The limit of detection (LOD) was as low as 0.15 ng/mL which was significantly 50-fold higher sensitivity than the commercial mAb-ICA. Additionally, this method exhibited good recoveries for the detection of cabbage, cucumber, and orange samples and excellent correlation with the UPLC-MS/MS method. The results showed that this method developed in this work based on nanobody can be used in practical detection of parathion in foods and nanobody is novel prospective antibody resource for immunoassays of chemical contaminants.
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Affiliation(s)
- Mingwei Guo
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Mordern Agriculture, Guangzhou, 510642, China
| | - Jiarui Pang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Mordern Agriculture, Guangzhou, 510642, China
| | - Yu Wang
- Guangzhou Institute of Food Inspection, Guangzhou, 510080, China
| | - Chaohui Bi
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Mordern Agriculture, Guangzhou, 510642, China
| | - Zhenlin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Mordern Agriculture, Guangzhou, 510642, China
| | - Yudong Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Mordern Agriculture, Guangzhou, 510642, China
| | - Jinyi Yang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Mordern Agriculture, Guangzhou, 510642, China
| | - Hong Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Mordern Agriculture, Guangzhou, 510642, China.
| | - Yuanming Sun
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Mordern Agriculture, Guangzhou, 510642, China
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2
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Zhao Y, He B, Li D, Gao L, Ren W. Nanobody and CuS Nanoflower-Au-Based Lateral Flow Immunoassay Strip to Enhance the Detection of Aflatoxin B 1. Foods 2024; 13:1845. [PMID: 38928787 PMCID: PMC11203097 DOI: 10.3390/foods13121845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/27/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
In the realm of analysis, the lateral flow immunoassay (LFIA) is frequently utilized due to its capability to be fast and immediate. However, the biggest challenge of the LFIA is its low detection sensitivity and tolerance to matrix interference, making it impossible to enable accurate, qualitative analyses. In this study, we developed a new LFIA with higher affinity and sensitivity, based on a nanobody (G8-DIG) and CuS nanoflowers-Au (CuS NFs-Au), for the detection of aflatoxin B1 (AFB1) in maize. We synthesized the immunoprobe G8-DIG@CuS NFs-Au, stimulated the in situ development of Au nanoparticles (Au NPs) on Cu NFs by electrical displacement, and obtained Cu NFs-Au for fixing the G8-DIG. G8-DIG@CuS NFs-Au probe-based LFIAs may, in ideal circumstances, use a strip chromatography reader to accomplish sensitive quantitative detection and qualitative visualization. AFB1 has a detection range of 2.82-89.56 µg/L and a detection limit of 0.87 µg/L. When compared with an LFIA based on CuS NFs, this sensitivity is increased by 2.76 times. The practical application of this method in corn flour demonstrated a recovery rate of 81.7% to 117%. Therefore, CuS NFs-Au show great potential for detecting analytes.
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Affiliation(s)
| | | | | | | | - Wenjie Ren
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; (Y.Z.); (B.H.); (D.L.); (L.G.)
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3
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Li Z, Li S, Li Y, Liu M, Jiang L, Niu J, Zhang Y, Zhou Q. Highly selective and sensitive determination of doxycycline integrating enrichment with thermosensitive magnetic molecular imprinting nanomaterial and carbon dots based fluorescence probe. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 896:165257. [PMID: 37414165 DOI: 10.1016/j.scitotenv.2023.165257] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/15/2023] [Accepted: 06/30/2023] [Indexed: 07/08/2023]
Abstract
Doxycycline (DOX), a typical tetracycline antibiotic, is widely used because of its excellent antibacterial activity. To develop effective method for DOX has attracted much more attention. Herein, a new detection technology integrating magnetic solid phase extraction (MSPE) based on thermosensitive magnetic molecularly imprinted polymers (T-MMIPs) and fluorescence spectrometry based on carbon dots (CDs) was established. Thermosensitive magnetic molecularly imprinted polymers (T-MMIPs) was designed for selective enrichment of trace DOX. The synthesized T-MMIPs showed excellent selectivity for DOX. The adsorption performance of T-MMIPs varied with temperature in different solvents, which could achieve the enrichment and rapid desorption of DOX. In addition, the synthesized CDs had stable fluorescent property and better water-solubility, and the fluorescence of CDs was significantly quenched by DOX due to the internal filtration effect (IFE). Under the optimized conditions, the method resulted in good linearity over the range from 0.5 to 30 μg L-1, and the limit of detection was 0.2 μg L-1. The constructed detection technology was validated with real water samples, and excellent spiked recoveries from 92.5 % to 105.2 % were achieved. These data clearly indicated that the proposed technology was rapid, highly selective, environmentally friendly, and possessed significant potential application and development prospects.
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Affiliation(s)
- Zhi Li
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Shuangying Li
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Yanhui Li
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Menghua Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Liushan Jiang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Jinwen Niu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Yue Zhang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Qingxiang Zhou
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China.
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4
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Kropaneva M, Khramtsov P, Bochkova M, Lazarev S, Kiselkov D, Rayev M. Vertical Flow Immunoassay Based on Carbon Black Nanoparticles for the Detection of IgG against SARS-CoV-2 Spike Protein in Human Serum: Proof-of-Concept. BIOSENSORS 2023; 13:857. [PMID: 37754091 PMCID: PMC10526127 DOI: 10.3390/bios13090857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023]
Abstract
Point-of-care tests play an important role in serological diagnostics of infectious diseases and post-vaccination immunity monitoring, including in COVID-19. Currently, lateral flow tests dominate in this area and show good analytical performance. However, studies to improve the effectiveness of such tests remain important. In comparison with lateral flow tests, vertical flow immunoassays allow for a reduction in assay duration and the influence of the hook effect. Additionally, the use of carbon black nanoparticles (CNPs) as a color label can provide a lower detection limit (LOD) compared to conventional colloidal gold. Therefore, we have developed a vertical flow immunoassay for the detection of IgG against SARS-CoV-2 spike protein in human serum samples by applying a conjugate of CNPs with anti-human IgG mouse monoclonal antibodies (CNP@MAb). The vertical flow assay device consists of a plastic cassette with a hole on its top containing a nitrocellulose membrane coated with spike protein and an absorbent pad. The serum sample, washing buffer, and CNP@MAb flow vertically through the nitrocellulose membrane and absorbent pads, reducing assay time and simplifying the procedure. In positive samples, the interaction of CNP@MAb with anti-spike antibodies leads to the appearance of black spots, which can be visually detected. The developed method allows for rapid visual detection (5-7 min) of IgG vs. spike protein, with a LOD of 7.81 BAU/mL. It has been shown that an untrained operator can perform the assay and visually evaluate its results. Thus, the presented assay can be used in the further development of test systems for the serological diagnostics of COVID-19 or post-vaccination immunity monitoring.
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Affiliation(s)
- Maria Kropaneva
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of Russian Academy of Sciences, 614081 Perm, Russia; (M.K.); (M.R.)
- Biology Faculty, Perm State University, 614990 Perm, Russia
| | - Pavel Khramtsov
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of Russian Academy of Sciences, 614081 Perm, Russia; (M.K.); (M.R.)
- Biology Faculty, Perm State University, 614990 Perm, Russia
| | - Maria Bochkova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of Russian Academy of Sciences, 614081 Perm, Russia; (M.K.); (M.R.)
- Biology Faculty, Perm State University, 614990 Perm, Russia
| | - Sergey Lazarev
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of Russian Academy of Sciences, 614081 Perm, Russia; (M.K.); (M.R.)
- Biology Faculty, Perm State University, 614990 Perm, Russia
| | - Dmitriy Kiselkov
- Institute of Technical Chemistry, Ural Branch of Russian Academy of Sciences, 614013 Perm, Russia
| | - Mikhail Rayev
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of Russian Academy of Sciences, 614081 Perm, Russia; (M.K.); (M.R.)
- Biology Faculty, Perm State University, 614990 Perm, Russia
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5
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Zhao T, Liang X, Guo X, Yang X, Guo J, Zhou X, Huang X, Zhang W, Wang Y, Liu Z, Jiang Z, Zhou H, Zhou H. Smartphone-based colorimetric sensor array using gold nanoparticles for rapid distinguishment of multiple pesticides in real samples. Food Chem 2023; 404:134768. [DOI: 10.1016/j.foodchem.2022.134768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 10/22/2022] [Accepted: 10/24/2022] [Indexed: 11/04/2022]
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6
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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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7
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Xu L, El-Aty AA, Eun JB, Shim JH, Zhao J, Lei X, Gao S, She Y, Jin F, Wang J, Jin M, Hammock BD. Recent Advances in Rapid Detection Techniques for Pesticide Residue: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:13093-13117. [PMID: 36210513 PMCID: PMC10584040 DOI: 10.1021/acs.jafc.2c05284] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
As an important chemical pollutant affecting the safety of agricultural products, the on-site and efficient detection of pesticide residues has become a global trend and hotspot in research. These methodologies were developed for simplicity, high sensitivity, and multiresidue detection. This review introduces the currently available technologies based on electrochemistry, optical analysis, biotechnology, and some innovative and novel technologies for the rapid detection of pesticide residues, focusing on the characteristics, research status, and application of the most innovative and novel technologies in the past 10 years, and analyzes challenges and future development prospects. The current review could be a good reference for researchers to choose the appropriate research direction in pesticide residue detection.
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Affiliation(s)
- Lingyuan Xu
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - A.M. Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
- Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum 25240, Turkey
| | - Jong-Bang Eun
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Jae-Han Shim
- Natural Products Chemistry Laboratory, Biotechnology Research Institute, Chonnam National University, Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Jing Zhao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xingmei Lei
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Song Gao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yongxin She
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Fen Jin
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Wang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Maojun Jin
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Bruce D. Hammock
- Department of Entomology & Nematology and the UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA
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8
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Recent advances in the rapid detection of microRNA with lateral flow assays. Biosens Bioelectron 2022; 211:114345. [DOI: 10.1016/j.bios.2022.114345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/18/2022] [Accepted: 05/03/2022] [Indexed: 12/14/2022]
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9
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Wang Y, Xianyu Y. Nanobody and Nanozyme-Enabled Immunoassays with Enhanced Specificity and Sensitivity. SMALL METHODS 2022; 6:e2101576. [PMID: 35266636 DOI: 10.1002/smtd.202101576] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Immunoassay as a rapid and convenient method for detecting a variety of targets has attracted tremendous interest with its high specificity and sensitivity. Among the commonly used immunoassays, enzyme-linked immunosorbent assay has been widely used as a gold standard method in various fields that consists of two main components including a recognition element and an enzyme label. With the rapid advances in nanotechnology, nanobodies and nanozymes enable immunoassays with enhanced specificity and sensitivity compared with conventional antibodies and natural enzymes. This review is focused on the applications of nanobodies and nanozymes in immunoassays. Nanobodies advantage lies in their small size, high specificity, mass expression, and high stability. Nanozymes with peroxidase, phosphatase, and oxidase activities and their applications in immunoassays are highlighted and discussed in detail. In addition, the challenges and outlooks in terms of the use of nanobodies and the development of novel nanozymes in practical applications are discussed.
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Affiliation(s)
- Yidan Wang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Yunlei Xianyu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
- State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Ningbo Research Institute, Zhejiang University, Ningbo, Zhejiang, 315100, China
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10
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Zhao M, Wang M, Zhang X, Zhu Y, Cao J, She Y, Cao Z, Li G, Wang J, Abd El-Aty AM. Recognition elements based on the molecular biological techniques for detecting pesticides in food: A review. Crit Rev Food Sci Nutr 2021:1-24. [PMID: 34852703 DOI: 10.1080/10408398.2021.2009762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Excessive use of pesticides can cause contamination of the environment and agricultural products that are directly threatening human life and health. Therefore, in the process of food safety supervision, it is crucial to conduct sensitive and rapid detection of pesticide residues. The recognition element is the vital component of sensors and methods for fast testing pesticide residues in food. Improper recognition elements may lead to defects of testing methods, such as poor stability, low sensitivity, high economic costs, and waste of time. We can use the molecular biological technique to address these challenges as a good strategy for recognition element production and modification. Herein, we review the molecular biological methods of five specific recognition elements, including aptamers, genetic engineering antibodies, DNAzymes, genetically engineered enzymes, and whole-cell-based biosensors. In addition, the application of these identification elements combined with biosensor and immunoassay methods in actual detection was also discussed. The purpose of this review was to provide a valuable reference for further development of rapid detection methods for pesticide residues.
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Affiliation(s)
- Mingqi Zhao
- Institute of Quality Standardization & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture and Rural Areas, Beijing, China
| | - Miao Wang
- Institute of Quality Standardization & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture and Rural Areas, Beijing, China
| | - Xiaoguang Zhang
- Hebei Xiangzhi Testing Technology Co., Ltd, Shijiazhuang, China.,Core Facilities and Centers of Hebei Medical University, Shijiazhuang, China
| | - Yongan Zhu
- Institute of Quality Standardization & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture and Rural Areas, Beijing, China
| | - Jing Cao
- Institute of Quality Standardization & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture and Rural Areas, Beijing, China
| | - Yongxin She
- Institute of Quality Standardization & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture and Rural Areas, Beijing, China
| | - Zhen Cao
- Institute of Quality Standardization & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture and Rural Areas, Beijing, China
| | - Guangyue Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jing Wang
- Institute of Quality Standardization & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture and Rural Areas, Beijing, China
| | - A M Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.,Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, Turkey
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11
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He J, Zhu M, Chen X, Shi S, Tang F, Gu S. Multivalent nanobody-biotin amplified enzyme-linked immunosorbent assay for the environmental detection of 3-phenoxybenzoic acid. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:5247-5253. [PMID: 34708839 DOI: 10.1039/d1ay01491a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The 3-phenoxybenzoic acid (3-PBA) metabolized from pyrethroids is more toxic and has a longer half-life to degradation in a natural environment compared to its parent compounds. Few reports have focused on the environmental detection of 3-PBA. In this study, anti-3-PBA nanobodies in trivalent form (Nb3) were biotinylated. A sensitive enzyme-linked immunosorbent assay (ELISA) based on the combination of Nb3-biotin and streptavidin-horseradish peroxidase (SA-HRP) was developed for the environmental detection of 3-PBA. After optimization, the ELISA showed a half-maximum signal inhibition concentration (IC50) of 0.39 ng mL-1 in phosphate-buffered saline (pH 7, 20% MeOH) and a limit of detection (LOD) of 0.02 ng mL-1, which was more sensitive than the parent Nb-based ELISAs with IC50 and LOD values of 1.4 ng mL-1 and 0.1 ng mL-1, respectively. The Nb3-biotin amplified assay showed negligible cross-reactivity with its structural analogues (<0.1%). The average recoveries of 3-PBA from spiked canal water and soil samples ranged from 86.54-109.25% at 0.5-50 ng mL-1 (or ng g-1 (dw)). The 3-PBA residues in canal water and soil samples determined using this assay were in the ranges <LOD-1.46 ng mL-1 and <LOD-4.35 ng g-1 (dw), respectively, which correlated well with the results obtained using liquid chromatography tandem mass spectrometry. The results suggest that multivalent Nb-biotin-SA amplified ELISA is a promising tool for the routine environmental screening of 3-PBA.
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Affiliation(s)
- Jinxin He
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Mi Zhu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Xiaorong Chen
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Shengrui Shi
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Fang Tang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Shaopeng Gu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
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12
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Zhang X, Liao X, Wu Y, Xiong W, Du J, Tu Z, Yang W, Wang D. A sensitive electrochemical immunosensing interface for label-free detection of aflatoxin B 1 by attachment of nanobody to MWCNTs-COOH@black phosphorene. Anal Bioanal Chem 2021; 414:1129-1139. [PMID: 34719746 DOI: 10.1007/s00216-021-03738-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/01/2021] [Accepted: 10/15/2021] [Indexed: 11/26/2022]
Abstract
A label-free electrochemical immunosensor has advantages of real-time and rapid detection, but it is weak in detection of small molecular toxins such as aflatoxin B1 (AFB1). The greatest obstacle to achieving this is that small molecules bound to a common immunosensing interface cannot interfere with electron transfer effectively and the detection signal is so weak. Therefore, a sensitive electrochemical immunosensing interface for small molecules is urgently needed. Here, we employed functionalized black phosphorene (BP) as electrode modification materials and anti-AFB1 nanobody (Nb) as a biorecognition element to construct a very sensitive immunosensing interface towards small molecular AFB1. The BP functionalized by carboxylic multi-walled carbon nanotubes (MWCNTs-COOH) via P-C bonding behaved with a satisfactory stability and good catalytic performance for the ferricyanide/ferrocyanide probe, while the small-sized Nb showed good compatibility with the functionalized BP and also had less influence on electron transfer than monoclonal antibody (mAb). Expectedly, the as-prepared immunosensing interface was very sensitive to AFB1 detection by differential pulse voltammetry (DPV) in a redox probe system. Under optimized conditions, a linear range from 1.0 pM to 5.0 nM and an ultralow detection limit of 0.27 pM were obtained. Additionally, the fabricated immunosensor exhibited satisfactory stability, specificity, and reproducibility. The strategy proposed here provides a more reliable reference for label-free sensing of small molecules in food samples.
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Affiliation(s)
- Xue Zhang
- Research Center of Mycotoxin, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, People's Republic of China
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables/Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits &Vegetables in Jiangxi Province, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Xiaoning Liao
- Research Center of Mycotoxin, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, People's Republic of China
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables/Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits &Vegetables in Jiangxi Province, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Yongfa Wu
- Research Center of Mycotoxin, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, People's Republic of China
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables/Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits &Vegetables in Jiangxi Province, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Wanming Xiong
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables/Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits &Vegetables in Jiangxi Province, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Juan Du
- Key Lab for Agro-Product Processing and Quality Control of Nanchang City, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Zhui Tu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Wuying Yang
- Key Lab for Agro-Product Processing and Quality Control of Nanchang City, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Dan Wang
- Research Center of Mycotoxin, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, People's Republic of China.
- Key Lab for Agro-Product Processing and Quality Control of Nanchang City, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China.
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Di Nardo F, Chiarello M, Cavalera S, Baggiani C, Anfossi L. Ten Years of Lateral Flow Immunoassay Technique Applications: Trends, Challenges and Future Perspectives. SENSORS (BASEL, SWITZERLAND) 2021; 21:5185. [PMID: 34372422 PMCID: PMC8348896 DOI: 10.3390/s21155185] [Citation(s) in RCA: 174] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 12/22/2022]
Abstract
The Lateral Flow Immunoassay (LFIA) is by far one of the most successful analytical platforms to perform the on-site detection of target substances. LFIA can be considered as a sort of lab-in-a-hand and, together with other point-of-need tests, has represented a paradigm shift from sample-to-lab to lab-to-sample aiming to improve decision making and turnaround time. The features of LFIAs made them a very attractive tool in clinical diagnostic where they can improve patient care by enabling more prompt diagnosis and treatment decisions. The rapidity, simplicity, relative cost-effectiveness, and the possibility to be used by nonskilled personnel contributed to the wide acceptance of LFIAs. As a consequence, from the detection of molecules, organisms, and (bio)markers for clinical purposes, the LFIA application has been rapidly extended to other fields, including food and feed safety, veterinary medicine, environmental control, and many others. This review aims to provide readers with a 10-years overview of applications, outlining the trends for the main application fields and the relative compounded annual growth rates. Moreover, future perspectives and challenges are discussed.
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Affiliation(s)
- Fabio Di Nardo
- Department of Chemistry, University of Torino, 10125 Torino, Italy; (M.C.); (S.C.); (C.B.); (L.A.)
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