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Zhu Y, Zhang Y, Zeng D, Chen H, Wang Y, Yang J, Wang H, Xu Z, Sun Y, Tian Y, Shen Y. Designing a size exclusion-based hapten and the development of a quantitative and visual time-resolved fluorescence immunochromatography assay strip for detecting dimethomorph and flumorph in a group-specific manner. Food Chem 2024; 450:139372. [PMID: 38640545 DOI: 10.1016/j.foodchem.2024.139372] [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: 08/30/2023] [Revised: 02/18/2024] [Accepted: 04/13/2024] [Indexed: 04/21/2024]
Abstract
Based on the size and surface properties of dimethomorph and flumorph, we used a computer simulation-assisted size exclusion hapten design strategy to develop group-specific monoclonal antibodies that can simultaneously recognize dimethomorph and flumorph. For this, we performed quantitative and visual semi-quantitative time-resolved fluorescence immunochromatography (TRFICA) to simultaneously detect dimethomorph and flumorph in potatoes and apples. In potato samples, the visual limit of detection (vLOD) for dimethomorph and flumorph was 4 ng/mL and 8 ng/mL, respectively, whereas the quantitative limit of detection (qLOD) for dimethomorph and flumorph was 0.26 and 0.33 ng/mL, respectively. The vLOD of dimethomorph and flumorph in apple samples was 8 ng/mL, whereas the qLOD of dimethomorph and flumorph was 0.17 and 0.38 ng/mL, respectively. The average recovery of potato and apple samples ranged from 77.5% to 121.7%, which indicated that the method can be used to rapidly detect dimethomorph and flumorph in food samples.
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Affiliation(s)
- Yuxian Zhu
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Yongyi Zhang
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Daoping Zeng
- Wens Institute, Wens Foodstuff Groups Co., Ltd., Yunfu 527499, China
| | - Haoyu Chen
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Yu Wang
- Guangzhou Institute for Food Inspection, Guangzhou 510410, China
| | - Jinyi Yang
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Hong Wang
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Zhenlin Xu
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Yuanming Sun
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Yuanxin Tian
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Yudong Shen
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China.
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2
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Qin L, Xiao J, Yang H, Liang J, Li L, Wu S, Peng D. Rapid immunoassays for the detection of quinoxalines and their metabolites residues in animal-derived foods: A review. Food Chem 2024; 443:138539. [PMID: 38320375 DOI: 10.1016/j.foodchem.2024.138539] [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: 10/22/2023] [Revised: 01/06/2024] [Accepted: 01/20/2024] [Indexed: 02/08/2024]
Abstract
Quinoxalines are a class of veterinary drugs with antibacterial and growth-promoting functions. They are often widely used to treat and prevent animal diseases and are illegally used as animal growth promoters to increase economic benefits. Quinoxalines could be easily metabolized in animals to various residue markers and remain in animal-derived foods, which would pose a serious threat to human health. Consequently, it is necessary to detect the residues of quinoxalines and their metabolites. This article reviewed and evaluated immunoassays for quinoxalines and their metabolites in animal-derived foods, mainly including enzyme-linked immunosorbent assays, fluorescence immunosorbent assays, immunochromatography, and surface plasmon resonance biosensors. In addition, we deeply explored the design of haptens for quinoxalines and their metabolites and analyzed the effect of haptens on antibody performance. This paper aims to provide guidance and references for their accurate and sensitive detection, thereby ensuring food safety and human public health.
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Affiliation(s)
- Liangni Qin
- State Key Laboratory of Agricultural Microbiology, National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiaxu Xiao
- State Key Laboratory of Agricultural Microbiology, National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan 430070, China
| | - Hongfei Yang
- State Key Laboratory of Agricultural Microbiology, National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan 430070, China
| | - Jixiang Liang
- State Key Laboratory of Agricultural Microbiology, National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan 430070, China
| | - Long Li
- State Key Laboratory of Agricultural Microbiology, National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan 430070, China
| | - Shixiang Wu
- State Key Laboratory of Agricultural Microbiology, National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan 430070, China
| | - Dapeng Peng
- State Key Laboratory of Agricultural Microbiology, National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen 518000, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China; Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China.
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Lin J, Liu Z, Guan T, Lei Y, Pan L, Yu X, Zhang S, Huang XA, Lei H, Chen J. Antibody Production and Immunoassay Development for Authenticating Chlorpheniramine Maleate Adulteration in Herbal Tea. Foods 2024; 13:1609. [PMID: 38890838 PMCID: PMC11172221 DOI: 10.3390/foods13111609] [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: 04/17/2024] [Revised: 05/14/2024] [Accepted: 05/16/2024] [Indexed: 06/20/2024] Open
Abstract
Chlorphenamine maleate is a prohibited additive found in herbal teas and health foods. Excessive intake of this substance can result in adverse health effects. In this study, two novel haptens, PEM and bepotastine (PB1), mimicking chlorphenamine maleate structure were designed and synthesized based on molecular simulation for developing two corresponding polyclonal antibodies (PEM-Ab and PB1-Ab), respectively. Afterward, an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) was developed to quickly and accurately detect chlorphenamine maleate in herbal teas using PB1-Ab, which has a high sensitivity and specificity. For chlorphenamine maleate, the half-maximal inhibitory concentration (IC50) and limit of detection (LOD) of PB1-Ab under ideal circumstances were found to be 1.18 µg/L and 0.07 µg/L, respectively. Besides, an environmentally friendly sample pre-treatment strategy was employed that allowed easy and effective elimination of complex matrices. The ic-ELISA method observed the average recovery rate from 87.7% to 94.0% with the variance coefficient (CV) ranging from 2.2% to 9.4%. Additionally, the identification of 25 commercially available herbal teas using liquid chromatography-tandem mass spectrometry (LC-MS/MS) further confirmed the validity of our detection. The results of the two methods are consistent. Overall, the proposed ic-ELISA could be an ultrasensitive and reliable method for chlorphenamine maleate adulterated in foods or exposure to the environment.
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Affiliation(s)
- Jianhao Lin
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Nation-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Zhiwei Liu
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Nation-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Tian Guan
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Nation-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Yi Lei
- Guangzhou Institute of Food Inspection, Guangzhou 511410, China
| | - Liangwen Pan
- Animal, Plant and Food Inspection and Quarantine Technology Center, Shanghai Customs, Shanghai 200135, China
| | - Xiaoqin Yu
- Sichuan Institute of Food Inspection, Chengdu 610097, China
| | - Shiwei Zhang
- National Nutrition Food Testing Center, Shenzhen Academy of Metrology and Quality Inspection, Shenzhen 518131, China
| | - Xin-An Huang
- Tropical Medicine Institute & South China Chinese Medicine Collaborative Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Hongtao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Nation-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
- Licheng Detection & Certification Group Co., Ltd., Zhongshan 528400, China
| | - Jiahong Chen
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Nation-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
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4
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Zhang Y, Wu W, Li Q, Zhou P, Wen K, Shen J, Wang Z. The hapten rigidity improves antibody performances in immunoassay for rifamycins: Immunovalidation and molecular mechanism. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:133977. [PMID: 38492395 DOI: 10.1016/j.jhazmat.2024.133977] [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: 12/04/2023] [Revised: 02/24/2024] [Accepted: 03/05/2024] [Indexed: 03/18/2024]
Abstract
The immunogenicity of haptens determines the performance of the resultant antibody for small molecules. Rigidity is one of the basic physicochemical properties of haptens. However, few studies have investigated the effect of hapten rigidity on the strength of an immune response and overall antibody performance. Herein, we introduce three molecular descriptors that quantify hapten rigidity. By using of these descriptors, four rifamycin haptens with varied rigidity were designed. The structural and physicochemical feasibility of the designed haptens was then assessed by computational chemistry. Immunization demonstrated that the strength of induced immune responses, i.e., the titer and affinity of antiserum, was significantly increased with increased rigidity of haptens. Furthermore, molecular dynamic simulations demonstrated conformation constraint of rigid haptens contributed to the initial binding and activation of naïve B cells. Finally, a highly sensitive indirect competitive enzyme-linked immunosorbent assay was developed for detection of rifaximin, with an IC50 of 1.1 μg/L in buffer and a limit of detection of 0.2-11.3 μg/L in raw milk, river water, and soil samples. This work provides new insights into the effect of hapten rigidity on immunogenicity and offers new hapten design strategies for antibody discovery and vaccine development of small molecules.
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Affiliation(s)
- Yingjie Zhang
- National Key Laboratory of Veterinary Public Health and Safety, Beijing Key Laboratory of Detection Technology for Animal-Derived Food, College of Veterinary Medicine, China Agricultural University, 100193 Beijing, People's Republic of China
| | - Weilin Wu
- National Key Laboratory of Veterinary Public Health and Safety, Beijing Key Laboratory of Detection Technology for Animal-Derived Food, College of Veterinary Medicine, China Agricultural University, 100193 Beijing, People's Republic of China
| | - Qing Li
- National Key Laboratory of Veterinary Public Health and Safety, Beijing Key Laboratory of Detection Technology for Animal-Derived Food, College of Veterinary Medicine, China Agricultural University, 100193 Beijing, People's Republic of China
| | - Penghui Zhou
- National Key Laboratory of Veterinary Public Health and Safety, Beijing Key Laboratory of Detection Technology for Animal-Derived Food, College of Veterinary Medicine, China Agricultural University, 100193 Beijing, People's Republic of China
| | - Kai Wen
- National Key Laboratory of Veterinary Public Health and Safety, Beijing Key Laboratory of Detection Technology for Animal-Derived Food, College of Veterinary Medicine, China Agricultural University, 100193 Beijing, People's Republic of China
| | - Jianzhong Shen
- National Key Laboratory of Veterinary Public Health and Safety, Beijing Key Laboratory of Detection Technology for Animal-Derived Food, College of Veterinary Medicine, China Agricultural University, 100193 Beijing, People's Republic of China
| | - Zhanhui Wang
- National Key Laboratory of Veterinary Public Health and Safety, Beijing Key Laboratory of Detection Technology for Animal-Derived Food, College of Veterinary Medicine, China Agricultural University, 100193 Beijing, People's Republic of China.
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Chen J, Chen L, Zhang Y, Xiang S, Zhang R, Shen Y, Liao J, Xie H, Yang J. Development of a Time-Resolved Fluorescent Microsphere Test Strip for Rapid, On-Site, and Sensitive Detection of Picoxystrobin in Vegetables. Foods 2024; 13:423. [PMID: 38338560 PMCID: PMC10855143 DOI: 10.3390/foods13030423] [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: 12/25/2023] [Revised: 01/21/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
Picoxystrobin (PIC) is a fungicide extensively used for disease control in both crops and vegetables. Residues of PIC in vegetables pose a potential threat to human health due to their accumulation in the food chain. In this study, a specific PIC monoclonal antibody (mAb) was developed by introducing a carboxylic acid arm into PIC and subsequently preparing a hapten and an artificial antigen. A sensitive and rapid time-resolved fluorescence immunochromatographic assay (TRFICA) was established based on the mAb. Subsequently, using a time-resolved fluorescent microsphere (TRFM) as signal probe, mAbs and microspheres were covalently coupled. The activated pH, the mAb diluents, the mAb amount, and the probe amount were optimized. Under optimized conditions, the quantitative limits of detection (qLOD) of PIC in cucumber, green pepper, and tomato using TRFICA were established at 0.61, 0.26, and 3.44 ng/mL, respectively; the 50% inhibiting concentrations (IC50) were 11.76, 5.29, and 37.68 ng/mL, respectively. The linear ranges were 1.81-76.71, 0.80-35.04, and 8.32-170.55 ng/mL, respectively. The average recovery in cucumber, green pepper, and tomato samples ranged from 79.8% to 105.0%, and the corresponding coefficients of variation (CV) were below 14.2%. In addition, 15 vegetable samples were selected and compared with the results obtained using ultra-performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS). The results revealed a high degree of concordance between the proposed method and UPLC-MS/MS. In conclusion, the devised TRFICA method is a valuable tool for rapid, on-site, and highly sensitive detection of PIC residues in vegetables.
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Affiliation(s)
- Junjie Chen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (J.C.); (L.C.); (Y.Z.); (S.X.); (R.Z.); (Y.S.); (J.L.); (H.X.)
| | - Lidan Chen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (J.C.); (L.C.); (Y.Z.); (S.X.); (R.Z.); (Y.S.); (J.L.); (H.X.)
| | - Yongyi Zhang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (J.C.); (L.C.); (Y.Z.); (S.X.); (R.Z.); (Y.S.); (J.L.); (H.X.)
| | - Siyi Xiang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (J.C.); (L.C.); (Y.Z.); (S.X.); (R.Z.); (Y.S.); (J.L.); (H.X.)
| | - Ruizhou Zhang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (J.C.); (L.C.); (Y.Z.); (S.X.); (R.Z.); (Y.S.); (J.L.); (H.X.)
| | - Yudong Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (J.C.); (L.C.); (Y.Z.); (S.X.); (R.Z.); (Y.S.); (J.L.); (H.X.)
| | - Jiaming Liao
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (J.C.); (L.C.); (Y.Z.); (S.X.); (R.Z.); (Y.S.); (J.L.); (H.X.)
| | - Huahui Xie
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (J.C.); (L.C.); (Y.Z.); (S.X.); (R.Z.); (Y.S.); (J.L.); (H.X.)
| | - Jinyi Yang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (J.C.); (L.C.); (Y.Z.); (S.X.); (R.Z.); (Y.S.); (J.L.); (H.X.)
- Wens Institute, Wens Foodstuff Groups Co., Ltd., Yunfu 527400, China
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Wang T, Zhou T, Wu K, Cao J, Feng Y, Li J, Deng A. A sensitive monoclonal antibody-based ELISA integrated with immunoaffinity column extraction for the detection of zearalenone in food and feed samples. Analyst 2024; 149:442-450. [PMID: 38099486 DOI: 10.1039/d3an01779f] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Zearalenone (ZEN) is one of the most toxic mycotoxins widely found in agricultural products. In this study, a sensitive enzyme-linked immunosorbent assay (ELISA) integrated with immunoaffinity column extraction for the detection of ZEN in food and feed samples was developed. A ZEN derivative containing a carboxylic group was first synthesized and then linked to bovine serum albumin (BSA). The formed ZEN-BSA conjugate was used as the immunogen for the production of the monoclonal antibody (mAb) against ZEN. The hybridoma clones (1G5) capable of secreting antibodies against ZEN were successfully selected. Based on this mAb, the IC50 and LOD of the ELISA for ZEN were 0.37 ng mL-1 and 0.04 ng mL-1, respectively, which were 1.6-308.1 times lower than those in the published ELISAs, indicating the high sensitivity of our assay. There was no cross-reactivity of the mAb with other four mycotoxins (patulin, AFB1, DON, and OTA). Due to the high similarity in molecular structures among ZEN and its homologs (α-zearalanol, β-zearalanol, zearalanone, α-zearalenol, β-zearalenol), the CR values of the mAb with the homologs were within 3.59%-105.71%. Taking advantage of plenty of mAb, the immunoaffinity column was prepared by immobilizing the mAb on Sepharose-4B gel and filling it into an SPE column. ZEN spiked samples (corn, wheat, feed) were extracted using an immunoaffinity column and measured by ELISA and HPLC-FLD simultaneously. The recoveries of the ELISA for ZEN in the spiked samples were 92.46-105.48% with RSDs of 4.87-10.11%. A good correlation between ELISA (x) and HPLC-FLD (y) with the linear regression equation y = 1.0589x + 1.43815 (R2 = 0.998, n = 6) was obtained. To verify the applicability, the proposed ELISA was also applied to some real samples randomly collected from a local market. It was proven that the newly produced mAb-based ELISA was a feasible and sensitive method for the detection of ZEN in food and feed samples.
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Affiliation(s)
- Ting Wang
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Renai Road 199, Suzhou 215123, China.
| | - Ting Zhou
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Renai Road 199, Suzhou 215123, China.
| | - Kang Wu
- School of Biology & Basic Medical Science, Soochow University, Renai Road 199, Suzhou, 215123, China.
| | - Junlin Cao
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Renai Road 199, Suzhou 215123, China.
| | - Yuze Feng
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Renai Road 199, Suzhou 215123, China.
| | - Jianguo Li
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Renai Road 199, Suzhou 215123, China.
| | - Anping Deng
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Renai Road 199, Suzhou 215123, China.
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Watkins Z, McHenry A, Heikenfeld J. Wearing the Lab: Advances and Challenges in Skin-Interfaced Systems for Continuous Biochemical Sensing. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2024; 187:223-282. [PMID: 38273210 DOI: 10.1007/10_2023_238] [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: 01/27/2024]
Abstract
Continuous, on-demand, and, most importantly, contextual data regarding individual biomarker concentrations exemplify the holy grail for personalized health and performance monitoring. This is well-illustrated for continuous glucose monitoring, which has drastically improved outcomes and quality of life for diabetic patients over the past 2 decades. Recent advances in wearable biosensing technologies (biorecognition elements, transduction mechanisms, materials, and integration schemes) have begun to make monitoring of other clinically relevant analytes a reality via minimally invasive skin-interfaced devices. However, several challenges concerning sensitivity, specificity, calibration, sensor longevity, and overall device lifetime must be addressed before these systems can be made commercially viable. In this chapter, a logical framework for developing a wearable skin-interfaced device for a desired application is proposed with careful consideration of the feasibility of monitoring certain analytes in sweat and interstitial fluid and the current development of the tools available to do so. Specifically, we focus on recent advancements in the engineering of biorecognition elements, the development of more robust signal transduction mechanisms, and novel integration schemes that allow for continuous quantitative analysis. Furthermore, we highlight the most compelling and promising prospects in the field of wearable biosensing and the challenges that remain in translating these technologies into useful products for disease management and for optimizing human performance.
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Affiliation(s)
- Zach Watkins
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, USA.
| | - Adam McHenry
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, USA
| | - Jason Heikenfeld
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, USA
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Song L, Wang Y, Li Q, Wang J, Gao T, An Z, Liu Q, Mao Y, Bu T, Huang X, Ma Y, Wang Z, Zhang X. Production of monoclonal antibody against tylosin and tilmicosin with homogeneous cross-reactivity and its application in lateral flow immunoassay. Mikrochim Acta 2023; 191:42. [PMID: 38114730 DOI: 10.1007/s00604-023-06132-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/29/2023] [Indexed: 12/21/2023]
Abstract
To avoid false negative results due to the low cross-reactivity rate (CR) in rapid immunoassay, a group-specific antibody with homogeneous CR toward target compounds is needed for accuracy. In this study, tylosin (TYL) and tilmicosin (TM) were selected as model molecules. Firstly, two-dimensional similarity, electrostatic potential energy, spatial conformation and charge distribution of the haptens TYL-CMO, TYL-6-ACA, TYL-4-APA, TYL-CHO and DES-CMO and target compounds of TYL and TM were obtained using Gaussian 09W and Discovery Studio. The optimal hapten was DES-CMO because it is the most similar to TYL and TM. Subsequently, the mAb 14D5 cell line was obtained with IC50 values of 1.59 and 1.72 ng/mL for TYL and TM, respectively, and a CR of 92.44%. Finally, amorphous carbon nanoparticles (ACNPs) were conjugated with mAb 14D5 to develop an accurate lateral flow immunoassay (LFA) for detection of TYL and TM by the reflectance value under natural light. The recoveries of TYL and TM ranged from 77.18 to 112.04% with coefficient of variation < 13.43%. The cut-off value in milk samples was 8 ng/mL, and the limits of detection were 11.44, 15.96, 22.29 and 25.53 μg/kg for chicken muscle, bovine muscle, porcine muscle and porcine liver samples, respectively, and the results being consistent with HPLC-UV. The results suggest that the developed LFA is accurate and potentially useful for on-site screening of TYL and TM in milk and animal tissue samples.
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Affiliation(s)
- Lianjun Song
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Youyi Wang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Qingyue Li
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Jinkui Wang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Tian Gao
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Zhaohuan An
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Qinfang Liu
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Yexuan Mao
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Tong Bu
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Xianqing Huang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Yan Ma
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
- Henan Shuanghui Investment Development Co., Ltd., Luohe, 462005, China
- Henan Technology Innovation Center of Meat Processing and Research, Luohe, 462005, China
| | - Zhanhui Wang
- National Key Laboratory of Veterinary Public Health Security, Beijing Key Laboratory of Detection Technology for Animal Derived Food Safety, College of Veterinary Medicine, China Agricultural University, 100193, Beijing, People's Republic of China
| | - Xiya Zhang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China.
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9
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Qiu T, Zhang H, Lei H, Zhang L, Zhang Y, Shen X, Xu B, Zhu J, Xiao W, Zheng J, Chen J. Preparation of Anti-Zearalenone IgY and Development of an Indirect Competitive ELISA Method for the Measurement of Zearalenone in Post-Fermented Tea. Foods 2023; 12:4478. [PMID: 38137282 PMCID: PMC10742412 DOI: 10.3390/foods12244478] [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: 11/07/2023] [Revised: 12/05/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Post-fermented tea (PFT) is one of the most commonly consumed beverages worldwide. Rapid microbial growth and significant changes in the microbial composition of PFT during processing and storage pose a potential risk of contamination with mycotoxins such as zearalenone (ZEN). Screening for ZEN contamination in a simple, rapid, and inexpensive manner is required to ensure that PFT is safe for consumption. To monitor ZEN in PFT, ZEN was conjugated with bovine serum albumin to prepare egg yolk immunoglobulins (IgY). A specific indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) based on IgY was developed and validated. ZEN was extracted with acetonitrile and water (50:50, v/v) containing 5% acetic acid and purified using a mixture of primary and secondary amines and graphitized carbon black to remove matrix interference from the PFT samples. Under optimal conditions, the linear range of this assay was 13.8-508.9 ng mL-1, the limit of detection was 9.3 ng mL-1, and the half-maximal inhibitory concentration was 83.8 ng mL-1. Cross-reactivity was negligible, and the assay was specific for ZEN-related molecules. The recovery rate of ZEN in the control blanks of PFT samples spiked with a defined concentration of ZEN of 89.5% to 98.0%. The recovery and accuracy of the method were qualified for PFT matrices. No significant differences were evident between the results of the actual PFT samples analyzed by high-performance liquid chromatography and ic-ELISA. The collective data indicate that the developed ic-ELISA can be used for the rapid and simple detection of ZEN in PFT products.
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Affiliation(s)
- Taotao Qiu
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Huayi Zhang
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Hongtao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Y.Z.); (X.S.)
| | - Lin Zhang
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Yaqiong Zhang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Y.Z.); (X.S.)
| | - Xing Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Y.Z.); (X.S.)
| | - Biyun Xu
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Jialin Zhu
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Wentao Xiao
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Jixu Zheng
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Jiahong Chen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Y.Z.); (X.S.)
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10
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Zhang X, Li Z, Mao Y, Dang M, Huang X, Wang Z, Yang H, Bai Y, Zhang H. Production of high-affinity monoclonal antibody and development of immunoassay for 3-methyl-quinoxaline-2-carboxylic acid detection in swine muscle and liver. Food Chem 2023; 407:135175. [PMID: 36521388 DOI: 10.1016/j.foodchem.2022.135175] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 12/01/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022]
Abstract
Production of high-affinity and specific antibodies to small molecules with molecular weight (MW) lower than 200 Da is challenging. Here, we designed a novel hapten, named hapten H6, for the detection of 3-methyl-quinoxaline-2-carboxylic acid (MQCA, MW of 189 Da), a residual marker of olaquindox, one of important veterinary antibiotics. The hapten H6 maintained all structural features of MQCA, especially in mulliken atomic charge distribution. Then, a monoclonal antibody (mAb) named 8C9 was obtained with an IC50 value of 0.2 µg/L, yielding a 15.5- to 88.5-fold improvement compared to previously prepared specific antibodies against MQCA. In addition, mAb 8C9 exhibited ignorable cross-reactivity with other structural analogs. Finally, a highly sensitive and specific indirect competitive ELISA based on mAb 8C9 was developed for the detection of MQCA in swine muscle and liver samples with limit of detection values of 0.04 µg/kg and 0.09 µg/kg, respectively.
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Affiliation(s)
- Xiya Zhang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, China
| | - Zizhe Li
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, China
| | - Yexuan Mao
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, China
| | - Meng Dang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, China
| | - Xianqing Huang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, Henan 450002, China
| | - Zhanhui Wang
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, China Agricultural University, Beijing 100193, China
| | - Huijuan Yang
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, China Agricultural University, Beijing 100193, China; Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100193, China
| | - Yuchen Bai
- School of Public Health, Shanxi Medical University, No. 56, Xinjian South Road, Taiyuan, Shanxi 030001, China.
| | - Huahai Zhang
- College of Forestry, Northwest A&F University, Yangling, China.
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11
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Yang F, Dias ACP, Zhang X. Monoclonal antibody based immunoassay: An alternative way for aquatic environmental selenium detection. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159909. [PMID: 36336056 DOI: 10.1016/j.scitotenv.2022.159909] [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: 07/18/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 06/16/2023]
Abstract
Environmental concerns about human health encouraged increasing methodological interest in selenium (Se), which is an essential non-metal trace element and varies within a narrow concentration range between essential and toxic. In this study, two types of long-armed Se haptens (Se-hapten-lc-NHS) were synthesized for the first time using active ester formalization. In producing monoclonal antibodies (mAbs), the derivatization of haptenized Se at para- (meta-) and ortho-sites showed different properties. Finally, a mAb derived from hybridoma 5A52 was confirmed to be capable of establishing an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA). There was a successful quantitative determination of Se4+ with a detection range of 17 to 207 pmol mL-1 and a limit of detection of approximately 3.9 pmol mL-1. The mAb was found to be remarkably sensitive and specific, with no evidence of cross-reactivity with other ions. The assay was validated for four kinds of Se forms in water samples and showed satisfactory recoveries between 80 % and 108 %, with coefficients of variation of 2.1 %-11 %. The method proposed in our study offers a useful protocol for the rapid screening of Se and provides an alternative solution for the analysis of Se in aquatic environments.
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Affiliation(s)
- Fanfan Yang
- Centre of Molecular and Environmental Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Alberto C P Dias
- Centre of Molecular and Environmental Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Xiaoying Zhang
- Centre of Molecular and Environmental Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; Chinese-German Joint Institute for Natural Product Research, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, China.
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12
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Zhou P, Liu Y, Zhou T, Liu H, Li J, Deng A. Design and synthesis of geosmin derivatives using organic synthesis strategies and application in antibody production. FOOD AGR IMMUNOL 2022. [DOI: 10.1080/09540105.2022.2107620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Penghui Zhou
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, People’s Republic of China
| | - Ying Liu
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, People’s Republic of China
| | - Ting Zhou
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, People’s Republic of China
| | - Hanwen Liu
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, People’s Republic of China
| | - Jianguo Li
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, People’s Republic of China
| | - Anping Deng
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, People’s Republic of China
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13
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Khan NS, Pradhan D, Choudhary S, Swargam S, Jain AK, Poddar NK. The interaction analysis between human serum albumin with chlorpyrifos and its derivatives through sub-atomic docking and molecular dynamics simulation techniques. 3 Biotech 2022; 12:272. [PMID: 36105863 PMCID: PMC9464670 DOI: 10.1007/s13205-022-03344-7] [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: 05/20/2022] [Accepted: 08/29/2022] [Indexed: 11/24/2022] Open
Abstract
Chlorpyrifos (CPF) is an extensively used organophosphate pesticide for crop protection. However, there are concerns about it contaminating the environment and human health, with estimated three lakh deaths annually. The molecular modeling protocol was assisted in redesigning thirteen well-known CPF linkers and inserting them at five selectable CPF (R1-R5) positions of CPF to get 258 CPF derivatives. CPF and its derivatives were optimized using LigPrep and docked to a grid centralized on Trp214 using extra precision glide docking. The Binding free energy of complexes was calculated using molecular mechanics/generalized born surface area (MM-GBSA). CPF and CPFD-225 have glide scores of - 3.08 and - 6.152 kcal/mol, respectively, with human serum albumin and ΔG bind for CPF (- 33.041817 kcal/mol) (- 52.825 kcal/mol) for CPF-D225. The top ten CPF derivatives showed at least ninefold better binding free energy than the CPF proposed for polyclonal antibody production. Subsequently, molecular docking studies revealed that CPF and its derivatives could bind to human serum albumin (HSA). Furthermore, using the Desmond package, a 100-ns molecular dynamics (MD) simulation was performed on the potential binding site. The final systems of CPF-HSA and CPF-222D complexes consist of 76,014 and 76,026 atoms, respectively. The physical stability of both the systems (CPF-HSA and CPF-222D) was analyzed by considering the overall potential energy, RMSF, RMSD, Hydrophobic interactions, and water-mediated patterns, which showed total energy of - 141,610 kcal/mol and - 140,150 kcal/mol, respectively. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03344-7.
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Affiliation(s)
- Noor Saba Khan
- Biomedical Informatics Centre, ICMR-National Institute of Pathology, New Delhi, 110029 India
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh 243123 India
| | | | - Saumya Choudhary
- Biomedical Informatics Centre, ICMR-National Institute of Pathology, New Delhi, 110029 India
- Department of Molecular and Cellular Engineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, 211007 India
| | - Sandeep Swargam
- Genomics and Epidemiology Division, INSACOG Unit, National Centre for Disease Control, New Delhi, 110054 India
| | - Arun Kumar Jain
- Biomedical Informatics Centre, ICMR-National Institute of Pathology, New Delhi, 110029 India
- Environmental Toxicology Laboratory, ICMR-National Institute of Pathology, New Delhi, India
| | - Nitesh Kumar Poddar
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh 243123 India
- Department of Biosciences, Manipal University Jaipur, Jaipur-Ajmer Express Highway, Dehmi Kalan, Near GVK Toll Plaza, Jaipur, Rajasthan 303007 India
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14
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Song M, Wu Q, Liu B, Li P, Jiang L, Wang Y, Dong S, Xiong Y, Hammock BD, Zhang C. Using a quantum dot bead-based lateral flow immunoassay to broadly detect the adulteration of PDE-5 inhibitors in functional foods. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:2586-2595. [PMID: 35723455 PMCID: PMC11257028 DOI: 10.1039/d2ay00580h] [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] [Indexed: 06/15/2023]
Abstract
In this study, a designed hapten possessing the classic structure of PDE-5 inhibitors was synthesized. A monoclonal antibody (mAb) with broad recognition for six PDE-5 inhibitors was further produced. For the determination of lodenafil, methisosildenafil, mirodenafil, udenafil and tadalafil, the limit of detection (LOD) and IC50 ranged from 1.01 to 26.91 ng mL-1 and 12.75 to 278 ng mL-1, respectively. Thereafter, a quantum dot bead-based lateral flow immunoassay (QB-LFIA) was developed, which improved the LOD and IC50 to 0.32-6.52 ng mL-1 and 7.45-133.8 ng mL-1, respectively. Method validation was conducted using honey and capsule samples spiked with PDE-5 inhibitors, and the recoveries of the intra- and inter-assays ranged from 81.01% to 108.16%, with coefficients of variation below 12.71%. In addition, the validity and the consistency have been confirmed with a comparison between QB-LFIA and HPLC-MS/MS (R2 = 0.9957). Furthermore, the developed QB-LFIA was employed for the inspection of real products, and several samples were found to be adulterated with lodenafil and methisosildenafil.
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Affiliation(s)
- Mingshu Song
- State Key Laboratory of Food Science and Technology, Nanchang University, 235 Nanjing East Road, Nanchang, 330047, P. R. China.
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China.
| | - Qin Wu
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China.
| | - Beibei Liu
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China.
| | - Pan Li
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China.
| | - Lan Jiang
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China.
| | - Yulong Wang
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China.
| | - Sa Dong
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China.
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, 235 Nanjing East Road, Nanchang, 330047, P. R. China.
| | - Bruce D Hammock
- Department of Entomology, Nematology and UCD Comprehensive Cancer Center, University of California Davis, California, 95616, USA
| | - Cunzheng Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, 235 Nanjing East Road, Nanchang, 330047, P. R. China.
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China.
- School of Biology and Food Engineering, Jiangsu University, Zhenjiang, 212000, P. R. China
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15
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Zhou T, He G, Hu C, Wu K, Liu Y, Li J, Deng A. Development of a highly sensitive and specific monoclonal antibody-based ELISA coupled with immuno-affinity extraction for the detection of anticancer drug 5-fluorouracil in blood samples. Talanta 2022; 249:123655. [PMID: 35696979 DOI: 10.1016/j.talanta.2022.123655] [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: 02/13/2022] [Revised: 05/29/2022] [Accepted: 06/03/2022] [Indexed: 10/31/2022]
Abstract
5-Fluorouracil (5-FU) is an effective anticancer drug widely used in cancer treatment. In this study, two 5-FU derivatives containing a spacer arm with the carboxylic group at the end were synthesized, which were linked to the carrier proteins to form 5-FU-protein conjugates used as the immunogens for the production of monoclonal antibody (mAb). Based on the produced mAb, the highly sensitive and specific enzyme-linked immunosorbent assay (ELISA) for 5-FU detection was established. The IC50 and LOD values of the assay were found to be 19.5 ng mL-1 and 0.5 ng mL-1, respectively. There was no cross-reactivity (CR) of the ELISA with cytosine, thymine and uracil, which avoided the interference from inherent pyrimidines. The CR values of the assay with three substitutes of 5-FU (tegafur, 5-fluoro-2'-deoxyuridine, carmofur) were within 9.7%-17.6%. The produced mAb was also applied in sample extraction. The immuno-affinity column capable specific capturing 5-FU was prepared by immobilizing the mAb on Sepharose-4B gel and filling into a SPE column. The recoveries of 5-FU in spiked samples measured by ELISA were 72.4%-90.7% with RSD of 3.6%-8.3%. Five blood samples collected from patients were extracted by immuno-affinity column, then measured by ELISA and confirmed by HPLC-MS/MS. There was a good correlation between HPLC-MS/MS and ELISA. It is demonstrated that the developed ELISA combined with immuno-affinity extraction can be a powerful alternative method for the detection of 5-FU in blood samples.
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Affiliation(s)
- Ting Zhou
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Renai Road 199, Suzhou, 215123, China
| | - Guangzhao He
- Changzhou Cancer Hospital Affiliated to Soochow University, Honghe Road 68, Changzhou, 213032, China
| | - Changjia Hu
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Renai Road 199, Suzhou, 215123, China
| | - Kang Wu
- School of Biology & Basic Medical Science, Soochow University, Renai Road 199, Suzhou, 215123, China.
| | - Ying Liu
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Renai Road 199, Suzhou, 215123, China
| | - Jianguo Li
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Renai Road 199, Suzhou, 215123, China.
| | - Anping Deng
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Renai Road 199, Suzhou, 215123, China.
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16
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Methyl ester and aromatic ether modification of mitragynine for generation of mitragynine-specific polyclonal antibodies. J Immunol Methods 2022; 507:113291. [DOI: 10.1016/j.jim.2022.113291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 05/19/2022] [Accepted: 05/25/2022] [Indexed: 11/21/2022]
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17
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Hu YMQ, Feng HW, Liu S, Liu C, Zhao PY, Zhang M, Zhang L, Zhao J, Li JZ, Yu XM, Liu HS, Zhu JF. The preparation of polyclonal antibody against chlordimeform and establishment of detection by indirect competitive ELISA. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2022; 57:114-124. [PMID: 35049417 DOI: 10.1080/03601234.2022.2029274] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
UNLABELLED Objective: Chlordimeform is a chemical pesticide that is highly carcinogenic and toxic. The purpose of this study was to establish an enzyme-linked immunosorbent assay (ELISA) method for the detection of chlordimeform in aquaculture and fish farming. METHODS Chlordimeform was coupled with bovine serum albumin (BSA) and ovalbumin (OVA) as carrier proteins. A chlordimeform-BSA conjugate was used as an immunogen, and chlordimeform-OVA was used as a coating antigen. Chlordimeform-BSA was used to immunize rabbits, and a polyclonal antibody was prepared. An indirect competitive enzyme-linked immunosorbent assay (IC-ELISA) was established to detect chlordimeform. RESULTS The working range of the established IC-ELISA method for chlordimeform detection was 1-20 ng/mL. The IC50 was 3.126 ng/mL, and the lower limit of detection (LOD) of chlordimeform was 0.637 ng/mL. The recovery of chlordimeform from spiked water samples ranged from 81% to 107%. CONCLUSION An anti-chlordimeform polyclonal antibody was successfully developed, and a novel IC-ELISA was established to detect chlordimeform in aquaculture.
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Affiliation(s)
| | - Hua-Wei Feng
- School of Pharmacy, Liaoning University, Shenyang, China
| | - Shuai Liu
- Non-Commissioned Officer School, Army Medical University, Shijiazhuang, China
| | - Chang Liu
- School of Pharmacy, Liaoning University, Shenyang, China
| | - Peng-Yan Zhao
- School of Life Sciences, Liaoning University, Shenyang, China
| | - Man Zhang
- School of Life Sciences, Liaoning University, Shenyang, China
| | - Li Zhang
- School of Life Sciences, Liaoning University, Shenyang, China
| | - Jian Zhao
- School of Life Sciences, Liaoning University, Shenyang, China
| | | | - Xiao-Miao Yu
- School of Life Sciences, Liaoning University, Shenyang, China
| | - Hong-Sheng Liu
- School of Pharmacy, Liaoning University, Shenyang, China
| | - Jun-Feng Zhu
- Department of Clinical Laboratory, Affiliated Hospital of Guilin Medical University, Guilin, China
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18
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Khan NS, Pradhan D, Choudhary S, Saxena P, Poddar NK, Jain AK. Immunoassay-based approaches for development of screening of chlorpyrifos. J Anal Sci Technol 2021. [DOI: 10.1186/s40543-021-00282-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractChlorpyrifos (CPF) is an extensively used organophosphate pesticide for crop protection. However, there are concerns of it contaminating the environment and human health with estimated three lakh deaths annually. Detection of CPF in blood samples holds significance to avoid severe health outcomes due to continuous exposure. The most common techniques for CPF detection are Gas chromatography (GC) and high-performance liquid chromatography (HPLC). However, these techniques might not be feasible at the community healthcare level due to high-cost instrumentation, time-consuming sample preparation protocol and skilled analysts. Therefore, rapid, effective and economical methods such as immunoassay would be imperative for CPF detection in biological samples. The vital step in immunoassay development is the design of a potent immunogen from non-immunogenic molecules. The molecular modelling protocol could assist in redesigning known CPF linkers and inserting them at different substitutable positions of CPF to get distinctive CPF derivatives. Molecular docking and binding free energy analysis can be used to identify the CPF derivatives having a better binding affinity with carrier protein compared to CPF. The top-ranked CPF derivatives based on docking score and binding energy could be ideal for synthesis and immunogen development. The present review will comprehend technological trends in immunoassay kits for detecting chlorpyrifos from biological samples.
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19
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Development of Cu(II)/Cu(I)-induced quantum dot-mediated fluorescence immunoassay for the sensitive determination of ethyl carbamate. Mikrochim Acta 2020; 187:533. [DOI: 10.1007/s00604-020-04502-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 08/18/2020] [Indexed: 12/16/2022]
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20
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Wang Z, Luo J, Zhao Y, Luo P. Development of an enzyme-linked immunosorbent assay for the determination of florfenicol and florfenicol amine in eggs. FOOD AGR IMMUNOL 2020. [DOI: 10.1080/09540105.2020.1786671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- Zifei Wang
- China National Center for Food Safety Risk Assessment, NHC Key Laboratory of Food Safety Risk Assessment, Beijing, People’s Republic of China
- Food Safety Research Unit, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Jiaqi Luo
- School of Life Sciences of Sun Yat-Sen University, Guangzhou, People’s Republic of China
| | - Yunfeng Zhao
- China National Center for Food Safety Risk Assessment, NHC Key Laboratory of Food Safety Risk Assessment, Beijing, People’s Republic of China
- Food Safety Research Unit, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Pengjie Luo
- China National Center for Food Safety Risk Assessment, NHC Key Laboratory of Food Safety Risk Assessment, Beijing, People’s Republic of China
- Food Safety Research Unit, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
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21
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Chen ZJ, Liu XX, Xiao ZL, Fu HJ, Huang YP, Huang SY, Shen YD, He F, Yang XX, Hammock B, Xu ZL. Production of a specific monoclonal antibody for 1-naphthol based on novel hapten strategy and development of an easy-to-use ELISA in urine samples. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 196:110533. [PMID: 32247241 PMCID: PMC7200204 DOI: 10.1016/j.ecoenv.2020.110533] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 03/20/2020] [Accepted: 03/21/2020] [Indexed: 05/13/2023]
Abstract
1-naphthol (1-NAP) is the main metabolite of pesticide carbaryl and naphthalene, and is also a genotoxic and carcinogenic intermediate in the synthesis of organic compound, dyes, pigment and pharmaceutical industry. In this work, two novel haptens were designed and synthesized for developing a competitive indirect enzyme-linked immunosorbent assay (ciELISA) method for 1-NAP in urine samples. The assay showed a limit of detection of 2.21 ng/mL and working range from 4.02 ng/mL to 31.25 ng/mL for 1-NAP in optimized working buffer. The matrix effect of samples was eliminated via 15-fold dilution of optimized working buffer. Good average recoveries (102.4%-123.4%) with a coefficient of variation from 11.7% to 14.7% was obtained for spiked urine samples. Subsequent instrument verification test showed good correlation between the results of ciELISA and high-performance liquid chromatography. The developed ciELISA is a high-throughput tool to monitor 1-NAP in urine, which can provide technical support for the establishment of biological exposure level for the exposure to carbaryl, naphthalene and other related pollutants.
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Affiliation(s)
- Zi-Jian Chen
- Guangdong Provincial Key Laboratory of Food (1)uality and Safety, South China Agricultural University, Guangzhou, 510642, China.
| | - Xi-Xia Liu
- Hubei Key Laboratory of Edible Wild Plants Conservation and Utilization, Hubei Normal University, Huangshi, 435002, China.
| | - Zhi-Li Xiao
- Guangdong Provincial Key Laboratory of Food (1)uality and Safety, South China Agricultural University, Guangzhou, 510642, China.
| | - Hui-Jun Fu
- Guangdong Provincial Key Laboratory of Food (1)uality and Safety, South China Agricultural University, Guangzhou, 510642, China.
| | - Yu-Ping Huang
- Guangdong Provincial Key Laboratory of Food (1)uality and Safety, South China Agricultural University, Guangzhou, 510642, China.
| | - Shu-Yi Huang
- Guangdong Provincial Key Laboratory of Food (1)uality and Safety, South China Agricultural University, Guangzhou, 510642, China.
| | - Yu-Dong Shen
- Guangdong Provincial Key Laboratory of Food (1)uality and Safety, South China Agricultural University, Guangzhou, 510642, China.
| | - Fan He
- Guangdong Provincial Key Laboratory of Food (1)uality and Safety, South China Agricultural University, Guangzhou, 510642, China.
| | - Xing-Xing Yang
- Shenzhen Bioeasy Biotechnology Co., Ltd., Shenzhen, 518102, China.
| | - Bruce Hammock
- Department of Entomology and UCD Comprehensive Cancer Center, University of California, Davis, CA, 95616, United States.
| | - Zhen-Lin Xu
- Guangdong Provincial Key Laboratory of Food (1)uality and Safety, South China Agricultural University, Guangzhou, 510642, China.
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Huang JX, Yao CY, Yang JY, Li ZF, He F, Tian YX, Wang H, Xu ZL, Shen YD. Design of Novel Haptens and Development of Monoclonal Antibody-Based Immunoassays for the Simultaneous Detection of Tylosin and Tilmicosin in Milk and Water Samples. Biomolecules 2019; 9:biom9120770. [PMID: 31771142 PMCID: PMC6995535 DOI: 10.3390/biom9120770] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/17/2019] [Accepted: 11/19/2019] [Indexed: 01/31/2023] Open
Abstract
In this work, a monoclonal antibody-based indirect competitive enzyme-linked immunosorbent assay (icELISA) was established to detect tylosin and tilmicosin in milk and water samples. A sensitive and specific monoclonal antibody was prepared by rational designed hapten, which was achieved by directly oxidizing the aldehyde group on the side chain of tylosin to the carboxyl group. Under the optimized conditions, the linear range of icELISA for tylosin and tilmicosin were 1.3 to 17.7 ng/mL and 2.0 to 47.4 ng/mL, with half-maximal inhibition concentration (IC50) values of 4.7 and 9.6 ng/mL, respectively. The cross-reactivity with other analogues of icELISA was less than 0.1%. The average recoveries of icELISA for tylosin and tilmicosin ranged from 76.4% to 109.5% in milk and water samples. Besides, the detection results of icELISA showed good correlations with HPLC-MS/MS. The proposed icELISA was satisfied for rapid and specific screening of tylosin and tilmicosin residues in milk and water samples.
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Affiliation(s)
- Jian-Xin Huang
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China; (J.-X.H.); (C.-Y.Y.); (J.-Y.Y.); (F.H.); (H.W.); (Z.-L.X.)
| | - Chan-Yuan Yao
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China; (J.-X.H.); (C.-Y.Y.); (J.-Y.Y.); (F.H.); (H.W.); (Z.-L.X.)
| | - Jin-Yi Yang
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China; (J.-X.H.); (C.-Y.Y.); (J.-Y.Y.); (F.H.); (H.W.); (Z.-L.X.)
| | - Zhen-Feng Li
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California Davis, Davis, CA 95616, USA;
| | - Fan He
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China; (J.-X.H.); (C.-Y.Y.); (J.-Y.Y.); (F.H.); (H.W.); (Z.-L.X.)
| | - Yuan-Xin Tian
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
- Correspondence: (Y.-X.T.); (Y.-D.S.); Tel.: +86-20-627-894-16 (Y.-X.T.); +86-20-852-834-48 (Y.-D.S.)
| | - Hong Wang
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China; (J.-X.H.); (C.-Y.Y.); (J.-Y.Y.); (F.H.); (H.W.); (Z.-L.X.)
| | - Zhen-Lin Xu
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China; (J.-X.H.); (C.-Y.Y.); (J.-Y.Y.); (F.H.); (H.W.); (Z.-L.X.)
| | - Yu-Dong Shen
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China; (J.-X.H.); (C.-Y.Y.); (J.-Y.Y.); (F.H.); (H.W.); (Z.-L.X.)
- Correspondence: (Y.-X.T.); (Y.-D.S.); Tel.: +86-20-627-894-16 (Y.-X.T.); +86-20-852-834-48 (Y.-D.S.)
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Development of Indirect Competitive ELISA for Lithospermic Acid B of Salvia miltiorrhiza with Its Specific Antibodies Generated via Artificial Oil Bodies. Molecules 2019; 24:molecules24101952. [PMID: 31117255 PMCID: PMC6571667 DOI: 10.3390/molecules24101952] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 05/20/2019] [Accepted: 05/21/2019] [Indexed: 11/17/2022] Open
Abstract
Lithospermic acid B (LSB), the major water-soluble ingredient of Salvia miltiorrhiza (Danshen), has been shown to be an active ingredient responsible for the therapeutic effects of this traditional Chinese herb used to treat cardiac disorders. This study aimed to develop an indirect competitive enzyme linked immunosorbent assay (ELISA) for the detection of LSB. Firstly, LSB was chemically conjugated to a modified oil-body protein, lysine-enriched caleosin, recombinantly expressed in Escherichia coli. Antibodies against LSB (Ab-LSB) were successfully generated by immunizing hens with artificial oil bodies constituted with the LSB-conjugated caleosin. Western blotting showed that Ab-LSB specifically recognized LSB, but not the carrier protein, lysine-enriched caleosin. To detect LSB via indirect competitive ELISA, LSB was conjugated with bovine serum albumin (LSB-BSA) and coated on a microplate. The binding between Ab-LSB and LSB-BSA on the microplate was competed dose-dependently in the presence of free LSB with a concentration ranging from 5 to 5 × 104 ng/mL. The IC50 value was approximately determined to be 120 ng/mL for LSB regardless of its complex with a metal ion of Na+, K+ or Mg2+.
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Zhang S, Wu ZY, Zhou K, Luo L, Xu ZL. Development of a competitive indirect ELISA for high-throughput screening of hydrocortisone in cosmetic sample. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2019.1608162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Shiwei Zhang
- Shenzhen Academy of Metrology and Quality Inspection, National Nutrition Food Testing Center, Shenzhen, People’s Republic of China
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Zhuo-Yu Wu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Kai Zhou
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Lin Luo
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Zhen-Lin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, People’s Republic of China
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An Indirect Competitive Enzyme-linked Immunosorbent Assay for Simultaneous Determination of Florfenicol and Thiamphenicol in Animal Meat and Urine. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1016/s1872-2040(18)61104-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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26
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Xu C, Yang Y, Liu L, Li J, Liu X, Zhang X, Liu Y, Zhang C, Liu X. Microcystin-LR nanobody screening from an alpaca phage display nanobody library and its expression and application. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 151:220-227. [PMID: 29353171 DOI: 10.1016/j.ecoenv.2018.01.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 12/28/2017] [Accepted: 01/03/2018] [Indexed: 06/07/2023]
Abstract
Microcystin-LR (MC-LR) is a type of biotoxin that pollutes the ecological environment and food. The study aimed to obtain new nanobodies from phage nanobody library for determination of MC-LR. The toxin was conjugated to keyhole limpet haemocyanin (KLH) and bovine serum albumin (BSA), respectively, then the conjugates were used as coated antigens for enrichment (coated MC-LR-KLH) and screening (coated MC-LR-BSA) of MC-LR phage nanobodies from an alpaca phage display nanobody library. The antigen-specific phage particles were enriched effectively with four rounds of biopanning. At the last round of enrichment, total 20 positive monoclonal phage nanobodies were obtained from the library, which were analyzed after monoclonal phage enzyme linked immunosorbent assay (ELISA), colony PCR and DNA sequencing. The most three positive nanobody genes, ANAb12, ANAb9 and ANAb7 were cloned into pET26b vector, then the nanobodies were expressed in Escherichia coli BL21 respectively. After being purified, the molecular weight (M.W.) of all nanobodies were approximate 15kDa with sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). The purified nanobodies, ANAb12, ANAb9 and ANAb7 were used to establish the indirect competitive ELISA (IC-ELISA) for MC-LR, and their half-maximum inhibition concentrations (IC50) were 0.87, 1.17 and 1.47μg/L, their detection limits (IC10) were 0.06, 0.08 and 0.12μg/L, respectively. All of them showed strong cross-reactivity (CRs) of 82.7-116.9% for MC-RR, MC-YR and MC-WR, and weak CRs of less than 4.56% for MC-LW, less than 0.1% for MC-LY and MC-LF. It was found that all the IC-ELISAs for MC-LR spiked in tap water samples detection were with good accuracy, stability and repeatability, their recoveries were 84.0-106.5%, coefficient of variations (CVs) were 3.4-10.6%. These results showed that IC-ELISA based on the nanobodies from the alpaca phage display antibody library were promising for high sensitive determination of multiple MCs.
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Affiliation(s)
- Chongxin Xu
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Ying Yang
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Liwen Liu
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Jianhong Li
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China.
| | - Xiaoqin Liu
- Huaihua Vocational and Technical College, Huaihua 418007, China
| | - Xiao Zhang
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yuan Liu
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Cunzheng Zhang
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xianjin Liu
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
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27
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Luo L, Lei HT, Yang JY, Liu GL, Sun YM, Bai WD, Wang H, Shen YD, Chen S, Xu ZL. Development of an indirect ELISA for the determination of ethyl carbamate in Chinese rice wine. Anal Chim Acta 2017; 950:162-169. [DOI: 10.1016/j.aca.2016.11.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 10/13/2016] [Accepted: 11/06/2016] [Indexed: 10/20/2022]
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28
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Li G, Zhao L, Zhou F, Li J, Xing Y, Wang T, Zhou X, Ji B, Ren W. Monoclonal antibody production and indirect competitive enzyme-linked immunosorbent assay development of 3-methyl-quinoxaline-2-carboxylic acid based on novel haptens. Food Chem 2016; 209:279-85. [PMID: 27173564 DOI: 10.1016/j.foodchem.2016.04.083] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 04/13/2016] [Accepted: 04/17/2016] [Indexed: 12/23/2022]
Abstract
Two novel immunizing haptens of 3-methyl-quinoxaline-2-carboxylic acid (MQCA) were synthesized and conjugated with cationized bovine serum albumin. Female BALB/c mice were immunized with above conjugates, splenocytes were fused with Sp2/0 cells to produce monoclonal antibody. Compared with previous studies, antibodies raised in this work showed higher sensitivity. Meantime, a novel heterologous coating hapten was also prepared. The indirect competitive enzyme-linked immunosorbent assay (icELISA) based on the optimum condition showed an IC50 of 3.1μg/kg (ppb), and the linear range of 0.46-10.5ppb for MQCA. The limit of detect (LOD) of MQCA in swine muscle, swine liver and chicken was 0.32, 0.54, and 0.28ppb, respectively. The LOD of this assay can satisfy the minimum required performance levels (4ppb) for MQCA. These results indicated that the proposed ELISA, with high sensitivity and specificity, as well as good reproducibility and accuracy, is suitable for determination of MQCA residues in food samples.
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Affiliation(s)
- Guopeng Li
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Tsinghua East Road 17, Haidian District, Beijing 100083, People's Republic of China
| | - Liang Zhao
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Tsinghua East Road 17, Haidian District, Beijing 100083, People's Republic of China
| | - Feng Zhou
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Tsinghua East Road 17, Haidian District, Beijing 100083, People's Republic of China.
| | - Jiaying Li
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Tsinghua East Road 17, Haidian District, Beijing 100083, People's Republic of China
| | - Yuan Xing
- Beijing Weifengyongzhu Science and Technology Development Co., LTD, District A, Yuanmo Technology Industrial Park, Changping, Beijing 100020, People's Republic of China; Pingyuan Weifengyongzhu Science and Technology Co., LTD, Depinglianjiexian West Street, Pingyuan District, Dezhou City, Shandong Province 253100, People's Republic of China
| | - Tiangang Wang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Tsinghua East Road 17, Haidian District, Beijing 100083, People's Republic of China
| | - Xilong Zhou
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Tsinghua East Road 17, Haidian District, Beijing 100083, People's Republic of China
| | - Baoping Ji
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Tsinghua East Road 17, Haidian District, Beijing 100083, People's Republic of China
| | - Wanpeng Ren
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Tsinghua East Road 17, Haidian District, Beijing 100083, People's Republic of China; China Development Bank, Fuxingmennei Street 18, Xicheng District, Beijing 100031, People's Republic of China
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Lu P, Wang Y, Wang Y, Wu C, Sun L, Xu D, Sun X, Li J, Gooneratne R. In vitrosynthesis of a type A trichothecenes complete antigen from T-2 toxin. FOOD AGR IMMUNOL 2016. [DOI: 10.1080/09540105.2016.1202205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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30
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Zhou L, Lei Y, Zhang D, Ahmed S, Chen S. An ultra-sensitive monoclonal antibody-based enzyme-linked immunosobent assay for dibutyl phthalate in human urinary. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 541:570-578. [PMID: 26433326 DOI: 10.1016/j.scitotenv.2015.09.110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/21/2015] [Accepted: 09/21/2015] [Indexed: 06/05/2023]
Abstract
Dibutyl phthalate (DBP) has been extensively used as a plasticizer in many daily products, which is highly toxic to human, notably affecting the reproductive and developmental function. As the previous method is expensive, time-consuming, low sensitivity and just focused on the environment. Present study was aimed to establish an ultra-sensitive and simple method based on good quality monoclonal antibody, applying to evaluate excretion level of DBP in urine samples of Chinese population directly. A monoclonal antibody was generated and characterized after fusion of myeloma cells with spleen cells isolated from BALB/c mouse. The mouse was previously immunized using a specially designed amino derivative of DBP conjugated with bovine serum albumin (BSA) as immunogen. Cross-reactivity values of the monoclonal antibody against DBP, di-isobutyl phthalate (DIBP) were observed 100% and 1.25%, while for dimethyl phthalate (DMP), butyl benzyl phthalate (BBP) and didecyl phthalate (DDP) the values were <0.06%. The standard curve was constructed at 0-50 ng mL(-1) and good linearity (R(2)=0.994) was achieved. The observed IC50 (7.34 ng mL(-1)) and LOD (0.06 ng mL(-1)) values was improved 1000-fold to polyclonal antibody and 5-fold to other monoclonal antibodies. A total 1246 urine samples were analyzed and the detection frequency of DBP was observed 72.87% by ic-ELISA. The 95th percentile and mean concentration of DBP were 12.07 and 3.00 ng mL(-1). Acceptable recovery rates of DBP were 97.8-114.3% and coefficients variation 5.93-11.09%. The concentrations of DBP in females were found significantly higher (p<0.05) than males. Similarly, the DBP in middle aged and low educated individuals was found higher (p<0.001) than the others. Considering the adverse health effects, DBP internal exposure in the Chinese population should be reduced. The ic-ELISA method has been proved as a cost effective, specific, and highly sensitive screening tool to detect DBP in urinary samples.
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Affiliation(s)
- Lifang Zhou
- Institute of Pharmacology, Toxicology and Biochemical Pharmaceutics, College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Yajing Lei
- Hangzhou EPIE Bio-detection Technology Limited, Hangzhou 310051, China
| | - Dai Zhang
- Institute of Pharmacology, Toxicology and Biochemical Pharmaceutics, College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Shabbir Ahmed
- Institute of Pharmacology, Toxicology and Biochemical Pharmaceutics, College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Shuqing Chen
- Institute of Pharmacology, Toxicology and Biochemical Pharmaceutics, College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China.
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Hesse A, Biyikal M, Rurack K, Weller MG. Development of highly sensitive and selective antibodies for the detection of the explosive pentaerythritol tetranitrate (PETN) by bioisosteric replacement. J Mol Recognit 2015; 29:88-94. [PMID: 26463875 DOI: 10.1002/jmr.2511] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 08/03/2015] [Accepted: 08/24/2015] [Indexed: 11/06/2022]
Abstract
An improved antibody against the explosive pentaerythritol tetranitrate (PETN) was developed. The immunogen was designed by the concept of bioisosteric replacement, which led to an excellent polyclonal antibody with extreme selectivity and immunoassays of very good sensitivity. Compounds such as nitroglycerine, 2,4,6-trinitrotoluene, 1,3,5-trinitrobenzene, hexogen (RDX), 2,4,6-trinitroaniline, 1,3-dinitrobenzene, octogen (HMX), triacetone triperoxide, ammonium nitrate, 2,4,6-trinitrophenol and nitrobenzene were tested for potential cross-reactivity. The detection limit of a competitive enzyme-linked immunosorbent assay was determined to be around 0.5 µg/l. The dynamic range of the assay was found to be between 1 and 1000 µg/l, covering a concentration range of three decades. This work shows the successful application of the bioisosteric concept in immunochemistry by exchange of a nitroester to a carbonate diester. The antiserum might be used for the development of quick tests, biosensors, microtitration plate immunoassays, microarrays and other analytical methods for the highly sensitive detection of PETN, an explosive frequently used by terrorists, exploiting the extreme difficulty of its detection.
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Affiliation(s)
- Almut Hesse
- Division 1.5, Protein Analysis, BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Strasse 11, 12489, Berlin, Germany
| | - Mustafa Biyikal
- Division 1.9, Chemical and Optical Sensing, BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Strasse 11, 12489, Berlin, Germany
| | - Knut Rurack
- Division 1.9, Chemical and Optical Sensing, BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Strasse 11, 12489, Berlin, Germany
| | - Michael G Weller
- Division 1.5, Protein Analysis, BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Strasse 11, 12489, Berlin, Germany
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32
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Production of Polyclonal Antibody and Development of a Competitive Enzyme-Linked Immunosorbent Assay for Benzoic Acid in Foods. FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-9975-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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33
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Mu H, Lei H, Wang B, Xu Z, Zhang C, Ling L, Tian Y, Hu J, Sun Y. Molecular modeling application on hapten epitope prediction: an enantioselective immunoassay for ofloxacin optical isomers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:7804-7812. [PMID: 25069865 DOI: 10.1021/jf404449n] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To deepen our understanding of the physiochemical principles that govern hapten-antibody recognition, ofloxacin enantiomers were chosen as a model for epitope prediction of small molecules. In this study, two monoclonal antibodies (mAbs) mAb-WR1 and mAb-MS1 were raised against R-ofloxacin and S-ofloxacin, respectively. The enantioselective mAbs have a high sensitivity and specificity, and the enantioselectivity is not affected by heterologous coating format reactions. The epitopes of the ofloxacin isomers were predicted using the hologram quantitative structure-activity relationship (HQSAR) and comparative molecular field analysis (CoMFA) approaches. The results consistently show that the epitope of the chiral hapten should be primarily composed of the oxazine ring and the piperazinyl ring and mAbs recognize the hapten from the side of this moiety. The enantioselectivity of mAbs is most likely due to the steric hindrance caused by the stereogenic center of the epitope. Modeling of chiral hapten-protein mimics reveals that ofloxacin isomers remain upright on the surface of the carrier protein. Suggestions to improve the enantioselectivity of antibodies against ofloxacin isomers were also proposed. This study provided a simple, efficient, and general method for predicting the epitopes of small molecules via molecular modeling. The epitope predictions for small molecules may create a theoretical guide for hapten design.
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Affiliation(s)
- Hongtao Mu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University , Guangzhou, Guangdong 510642, People's Republic of China
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Synthesis and evaluation of artificial antigens for astragaloside IV. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2014. [DOI: 10.1016/j.bjp.2014.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Xu J, Fan Z, Huang X, Cheng Y, Lu Y, Shen P. Investigation of the effect of hapten heterology in the enzyme-linked immunosorbent assay for Sudan I. FOOD AGR IMMUNOL 2013. [DOI: 10.1080/09540105.2013.864602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Cao B, Yang H, Song J, Chang H, Li S, Deng A. Sensitivity and specificity enhanced enzyme-linked immunosorbent assay by rational hapten modification and heterogeneous antibody/coating antigen combinations for the detection of melamine in milk, milk powder and feed samples. Talanta 2013; 116:173-80. [DOI: 10.1016/j.talanta.2013.05.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 05/04/2013] [Accepted: 05/06/2013] [Indexed: 01/01/2023]
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An immunochromatographic assay for rapid and simultaneous detection of levonorgestrel and methylprednisolone in water samples. CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2013.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wang Y, Yang H, Pschenitza M, Niessner R, Li Y, Knopp D, Deng A. Highly sensitive and specific determination of mercury(II) ion in water, food and cosmetic samples with an ELISA based on a novel monoclonal antibody. Anal Bioanal Chem 2012; 403:2519-28. [PMID: 22555680 DOI: 10.1007/s00216-012-6052-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 04/13/2012] [Accepted: 04/15/2012] [Indexed: 11/30/2022]
Abstract
Mercury is one of the most toxic heavy metals present in the environment. In this study, a highly sensitive and specific monoclonal antibody (mAb)-based indirect competitive enzyme-linked immunosorbent assay (ELISA) for the determination of Hg(2+) was developed. A new bifunctional ligand, 6-mercaptonicotinic acid (MNA), which contains a pyridine ring bearing a carboxylic group and a mercapto group, was selected for the preparation of immunogen. After immunization of mice and performing the hybridoma technique, the obtained mAb was characterized for its binding affinity and selectivity for Hg(2+). Based on this novel mAb, an ELISA was established. At optimal experimental conditions, the standard curve of the ELISA for Hg(2+) was constructed in concentration range of 0.1-100 ng mL(-1). The values of IC(50) and LOD of the assay were found to be 1.12 and 0.08 ng mL(-1). The cross-reactivity was lower than 2% with MNA, CH(3)Hg, and CH(3)Hg-MNA and was 11.5% and 4.4% for Hg(+) and Au(3+), respectively. No cross-reactivity was found with other metal ions such as Cu(2+), Sn(2+), Ni(2+), Mn(2+), Pb(2+), Zn(2+), Cd(2+), Fe(2+), Co(2+), Mg(2+), Ca(2+), and anions such as Cl(-), NO(3)(-), NO(2)(-), HCO(3)(-), F(-), and SO(4)(2-), indicating that the assay displays not only high sensitivity but also high selectivity. Different kinds of samples including water, milk, green vegetable, kelp, facial cleanser, and night cream were spiked with Hg(2+) and the extracts were analyzed by ELISA. Acceptable recovery rates of 80.0-113.0% and coefficients of variation of 1.9-18.6% were obtained. A linear relationship between ELISA and cold-vapor atomic fluorescence spectroscopy (CV-AFS) as indicated by a correlation coefficient of 0.97 for liquid samples (water samples) and 0.98 for other samples was obtained. The proposed mAb-based ELISA provides a feasible analytical method for highly sensitive and specific, fast, simple, and accurate determination of uncomplexed trace Hg(2+) in environmental and food samples.
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Affiliation(s)
- Yuzhen Wang
- College of Chemistry, Sichuan University, Chengdu, China
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Liu TH, Chyan CL, Li FY, Chen YJ, Tzen JTC. Engineering lysine-rich caleosins as carrier proteins to render biotin as a hapten on artificial oil bodies for antibody production. Biotechnol Prog 2011. [DOI: 10.1002/btpr.684] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Xu ZL, Wang H, Shen YD, Nichkova M, Lei HT, Beier RC, Zheng WX, Yang JY, She ZG, Sun YM. Conformational changes of hapten-protein conjugates resulting in improved broad-specificity and sensitivity of an ELISA for organophosphorus pesticides. Analyst 2011; 136:2512-20. [DOI: 10.1039/c1an15053g] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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