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Ahirwar R, Bhattacharya A, Kumar S. Unveiling the underpinnings of various non-conventional ELISA variants: a review article. Expert Rev Mol Diagn 2022; 22:761-774. [PMID: 36004453 DOI: 10.1080/14737159.2022.2117615] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Enzyme-linked immunosorbent assay (ELISA) is a key bio-analytical technique used for the detection of a large array of antigenic substances of scientific, clinical, food safety, and environmental importance. The assay primarily involves capturing and detecting target analytes using specific antigen-antibody interactions. The wide usage of ELISA shoulders on its high specificity and reproducibility. Notwithstanding, the conventional microwell plate-based format of ELISA has some major drawbacks, such as long assay time (4 - 18 h), large sample volumes requirement (100 - 200 μL), lack of multiplicity, and burdensome procedures that limit its utility in rapid and affordable diagnostics. AREAS COVERED Here, we reviewed microfluidic-ELISA, paper-ELISA, aptamer-ELISA, and those based on novel incubation such as heat-ELISA, pressure-ELISA, microwave-ELISA, and sound-ELISA. Further, the current trends and future prospects of these ELISA protocols in clinical diagnostics are discussed. EXPERT OPINION The reviewed non-conventional ELISA formats are relatively rapid, require low reagent volumes, are multiplexable, and could be performed in a low-cost setup. In our opinion, these non-conventional variants of ELISA are on a par with the conventional format for clinical diagnostics and fundamental biological research and hold added clinical translational potential for quick, inexpensive, and convenient measurements.
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Affiliation(s)
- Rajesh Ahirwar
- Department of Environmental Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal-462030, India
| | - Akanksha Bhattacharya
- Department of Environmental Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal-462030, India
| | - Saroj Kumar
- School of Biosciences, Apeejay Stya University, Gurgaon- 122103, India
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Boonserm P, Puthong S, Wichai T, Noitang S, Khunrae P, Sooksai S, Komolpis K. Investigation of major amino acid residues of anti-norfloxacin monoclonal antibodies responsible for binding with fluoroquinolones. Sci Rep 2021; 11:17140. [PMID: 34433868 PMCID: PMC8387498 DOI: 10.1038/s41598-021-96466-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/10/2021] [Indexed: 12/03/2022] Open
Abstract
It is important to understand the amino acid residues that govern the properties of the binding between antibodies and ligands. We studied the binding of two anti-norfloxacins, anti-nor 132 and anti-nor 155, and the fluoroquinolones norfloxacin, enrofloxacin, ciprofloxacin, and ofloxacin. Binding cross-reactivities tested by an indirect competitive enzyme-linked immunosorbent assay indicated that anti-nor 132 (22–100%) had a broader range of cross-reactivity than anti-nor 155 (62–100%). These cross-reactivities correlated with variations in the numbers of interacting amino acid residues and their positions. Molecular docking was employed to investigate the molecular interactions between the fluoroquinolones and the monoclonal antibodies. Homology models of the heavy chain and light chain variable regions of each mAb 3D structure were docked with the fluoroquinolones targeting the crucial part of the complementarity-determining regions. The fluoroquinolone binding site of anti-nor 155 was a region of the HCDR3 and LCDR3 loops in which hydrogen bonds were formed with TYR (H:35), ASN (H:101), LYS (H:106), ASN (L:92), and ASN (L:93). These regions were further away in anti-nor 132 and could not contact the fluoroquinolones. Another binding region consisting of HIS (L:38) and ASP (H:100) was found for norfloxacin, enrofloxacin, and ciprofloxacin, whereas only ASP (H:100) was found for ofloxacin.
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Affiliation(s)
- Patamalai Boonserm
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Songchan Puthong
- Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Bangkok, Thailand
| | - Thanaporn Wichai
- Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Bangkok, Thailand
| | - Sajee Noitang
- Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Bangkok, Thailand
| | - Pongsak Khunrae
- King Mongkut's University of Technology Thonburi, Bangkok, Thailand
| | - Sarintip Sooksai
- Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Bangkok, Thailand.
| | - Kittinan Komolpis
- Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Bangkok, Thailand. .,Food Risk Hub, Research Unit of Chulalongkorn University, Bangkok, Thailand.
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A general strategy to control antibody specificity against targets showing molecular and biological similarity: Salmonella case study. Sci Rep 2020; 10:18439. [PMID: 33116156 PMCID: PMC7595100 DOI: 10.1038/s41598-020-75285-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 10/12/2020] [Indexed: 11/10/2022] Open
Abstract
The control of antibody specificity plays pivotal roles in key technological fields such as diagnostics and therapeutics. During the development of immunoassays (IAs) for the biosensing of pathogens in food matrices, we have found a way to rationalize and control the specificity of polyclonal antibodies (sera) for a complex analytical target (the Salmonella genus), in terms of number of analytes (Salmonella species) and potential cross-reactivity with similar analytes (other bacteria strains). Indeed, the biosensing of Salmonella required the development of sera and serum mixtures displaying homogeneous specificity for a large set of strains showing broad biochemical variety (54 Salmonella serovars tested in this study), which partially overlaps with the molecular features of other class of bacteria (like specific serogroups of E. coli). To achieve a trade-off between specificity harmonisation and maximization, we have developed a strategy based on the conversion of the specificity profiles of individual sera in to numerical descriptors, which allow predicting the capacity of serum mixtures to detect multiple bacteria strains. This approach does not imply laborious purification steps and results advantageous for process scaling-up, and may help in the customization of the specificity profiles of antibodies needed for diagnostic and therapeutic applications such as multi-analyte detection and recombinant antibody engineering, respectively.
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Hits and misses in research trends to monitor contaminants in foods. Anal Bioanal Chem 2018; 410:5331-5351. [DOI: 10.1007/s00216-018-1195-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 05/31/2018] [Accepted: 06/12/2018] [Indexed: 01/26/2023]
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Liu B, Wang L, Tong B, Zhang Y, Sheng W, Pan M, Wang S. Development and comparison of immunochromatographic strips with three nanomaterial labels: Colloidal gold, nanogold-polyaniline-nanogold microspheres (GPGs) and colloidal carbon for visual detection of salbutamol. Biosens Bioelectron 2016; 85:337-342. [PMID: 27183285 DOI: 10.1016/j.bios.2016.05.032] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 05/05/2016] [Accepted: 05/08/2016] [Indexed: 10/21/2022]
Abstract
In this study, the three nanomaterials: colloidal gold, nanogold-polyaniline-nanogold microspheres (GPGs) and colloidal carbon were respectively labeled with the antibody against salbutamol (SAL). We aimed to develop immunochromatographic strips with these nanomaterial labels and determine their performance in visual detection of SAL. For the colloidal gold-based strip, the detection limit of SAL was 1.0µgL(-1) in standard solution and 5.0µgkg(-1) in meat samples. For the GPG- and colloidal carbon-based strips, the limit of detection was 2.0µgL(-1) in standard solution and 10µgkg(-1) in meat samples. The results obtained using the test strips were found to be highly consistent with those obtained using a commercial kit, indicating the high accuracy of these strips. The three strips were also found to be stable up to 18 weeks under laboratory conditions. In terms of sensitivity, the colloidal gold-based strip was slightly better than the other two. For the GPG- and colloidal carbon-based strips, the difference between the results obtained for different batches was small (high consistency), and the stability was much better than that of the colloidal gold-based one. Our results indicate that colloidal carbon can be used as a label in immunochromatographic tests; it can also help reduce the cost involved and scale-up the production. The use of immunochromatographic test strips labeled with colloidal carbon can be a rapid and inexpensive method for SAL assays in on-site applications.
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Affiliation(s)
- Bing Liu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Food Safety & Low Carbon Manufacturing Collaborative Innovation Center, 300457 Tianjin, China
| | - Lingling Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Food Safety & Low Carbon Manufacturing Collaborative Innovation Center, 300457 Tianjin, China
| | - Bei Tong
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Food Safety & Low Carbon Manufacturing Collaborative Innovation Center, 300457 Tianjin, China
| | - Yan Zhang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Food Safety & Low Carbon Manufacturing Collaborative Innovation Center, 300457 Tianjin, China
| | - Wei Sheng
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Food Safety & Low Carbon Manufacturing Collaborative Innovation Center, 300457 Tianjin, China
| | - Mingfei Pan
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Food Safety & Low Carbon Manufacturing Collaborative Innovation Center, 300457 Tianjin, China
| | - Shuo Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Food Safety & Low Carbon Manufacturing Collaborative Innovation Center, 300457 Tianjin, China.
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Shirazi H, Ahmadi A, Darzianiazizi M, Kashanian S, Kashanian S, Omidfar K. Signal amplification strategy using gold/N-trimethyl chitosan/iron oxide magnetic composite nanoparticles as a tracer tag for high-sensitive electrochemical detection. IET Nanobiotechnol 2016; 10:20-7. [PMID: 26766869 PMCID: PMC8676129 DOI: 10.1049/iet-nbt.2015.0022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 06/19/2015] [Accepted: 06/26/2015] [Indexed: 11/09/2023] Open
Abstract
This study presents a novel signal amplification method for high-sensitive electrochemical immunosensing. Gold (Au)/N-trimethyl chitosan (TMC)/iron oxide (Fe3O4) (shell/shell/core) nanocomposite was used as a tracing tag to label antibody. The tag was shown to be capable of amplifying the recognition signal by high-density assembly of Au nanoparticles (NPs) on TMC/Fe3O4 particles. The remarkable conductivity of AuNPs provides a feasible pathway for electron transfer. The method was found to be simple, reliable and capable of high-sensitive detection of human serum albumin as a model, down to 0.2 pg/ml in the range of 0.25-1000 pg/ml. Findings of the present study would create new opportunities for sensitive and rapid detection of various analytes.
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Affiliation(s)
- Hanieh Shirazi
- Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, IR, Iran
| | - Anita Ahmadi
- Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, IR, Iran
| | - Maedeh Darzianiazizi
- Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, IR, Iran
| | - Susan Kashanian
- Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, IR, Iran
| | - Soheila Kashanian
- Department of Chemistry, Sensor and Biosensor Research Center (SBRC) and Nanoscience and Nanotechnology Research Center (NNRC), Faculty of Science, Razi University, Kermanshah, IR, Iran
| | - Kobra Omidfar
- Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, IR, Iran.
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Rolet-Répécaud O, Arnould C, Dupont D, Gavoye S, Beuvier E, Achilleos C. Development and evaluation of a monoclonal antibody-based inhibition ELISA for the quantification of chymosin in solution. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:4799-4804. [PMID: 25905677 DOI: 10.1021/acs.jafc.5b00990] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Chymosin is the major enzyme of natural rennet, traditionally used in cheese making for its high milk-clotting activity. For technical reasons, an accurate characterization of rennet should include its total clotting activity and also its enzymatic composition. Monoclonal antibodies specific to chymosin were obtained from mice immunized with purified bovine chymosin, and an inhibition enzyme-linked immunosorbent assay (ELISA) was developed for the quantification of chymosin in solution. No cross-reactivity was observed with other milk-clotting enzymes commonly used in cheese making. The limit of detection and limit of quantification were 125 and 400 ng/mL, respectively. The values of precision within and among runs were 7.23 and 7.39%, respectively, and satisfying recovery, from 92 to 119%, was found for spiked samples. The inhibition ELISA was successfully applied to commercial rennets, and the results were consistent with those obtained using the standard chromatographic method (IDF 110: A, 1987).
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Affiliation(s)
- O Rolet-Répécaud
- †INRA, UR342 Technologie et Analyses Laitières, F-39800 Poligny, France
| | - C Arnould
- †INRA, UR342 Technologie et Analyses Laitières, F-39800 Poligny, France
| | | | - S Gavoye
- ∥ACTALIA, F-25620 Mamirolle, France
| | - E Beuvier
- †INRA, UR342 Technologie et Analyses Laitières, F-39800 Poligny, France
| | - C Achilleos
- †INRA, UR342 Technologie et Analyses Laitières, F-39800 Poligny, France
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Zeng K, Zou Y, Liu J, Wei W, Zhang M, Zhou J, Zhang Z, Gai Z. Enzyme-linked immunosorbent assay for triclocarban in aquatic environments. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2015; 72:1682-1691. [PMID: 26540528 DOI: 10.2166/wst.2015.366] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A sensitive, competitive indirect enzyme-linked immunosorbent assay (ELISA) was developed for the detection of triclocarban (TCC) in waters and sediments. Haptens were synthesized by derivatizing the paraposition of a phenyl moiety of TCC. The synthesized hapten was then coupled to bovine thyroglobulin to be used as an immunogen, based on which, a high affinity monoclonal antibody 4D5 was produced with the hybridoma technique. Under the optimized conditions, using the monoclonal antibody, excellent performances of the assay were obtained: satisfactory sensitivity (IC50 (50% inhibition concentration) value, 0.43 ng/mL; limit of detection, 0.05 ng/mL); good linear range (0.05-10 ng/mL); and satisfactory accuracy (recoveries 70.7-107% in waters; 74.8-98.3% in sediments). Furthermore, TCC was found with the concentration ranging from not detected to 422.12 ng/L in waters and from 6.68 ng/g to 78.67 ng/g in sediments in Yunliang River, Ancient Canal and Hongqiao Port in Zhenjiang City. In conclusion ELISA could be applied for monitoring TCC in aquatic environments.
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Affiliation(s)
- Kun Zeng
- School of the Environment, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Yanmin Zou
- School of Pharmacy, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Jianxia Liu
- Affiliated Hospital of Hebei University of Engineering, No. 81 Congtai Road, Handan City, Hebei Province 056029, China E-mail:
| | - Wei Wei
- School of the Environment, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Meng Zhang
- School of the Environment, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Jun Zhou
- School of the Environment, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Zhen Zhang
- School of the Environment, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Zikuan Gai
- Affiliated Hospital of Hebei University of Engineering, No. 81 Congtai Road, Handan City, Hebei Province 056029, China E-mail:
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9
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Fragkaki AG, Georgakopoulos C, Sterk S, Nielen MWF. Sports doping: emerging designer and therapeutic β2-agonists. Clin Chim Acta 2013; 425:242-58. [PMID: 23954776 DOI: 10.1016/j.cca.2013.07.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Revised: 07/30/2013] [Accepted: 07/31/2013] [Indexed: 12/12/2022]
Abstract
Beta2-adrenergic agonists, or β2-agonists, are considered essential bronchodilator drugs in the treatment of bronchial asthma, both as symptom-relievers and, in combination with inhaled corticosteroids, as disease-controllers. The use of β2-agonists is prohibited in sports by the World Anti-Doping Agency (WADA) due to claimed anabolic effects, and also, is prohibited as growth promoters in cattle fattening in the European Union. This paper reviews the last seven-year (2006-2012) literature concerning the development of novel β2-agonists molecules either by modifying the molecule of known β2-agonists or by introducing moieties producing indole-, adamantyl- or phenyl urea derivatives. New emerging β2-agonists molecules for future therapeutic use are also presented, intending to emphasize their potential use for doping purposes or as growth promoters in the near future.
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Affiliation(s)
- A G Fragkaki
- Doping Control Laboratory of Athens, Olympic Athletic Center of Athens "Spyros Louis", Kifisias 37, 15123 Maroussi, Greece.
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Hamburger meat identification by dot-ELISA. Meat Sci 2012; 56:189-92. [PMID: 22061908 DOI: 10.1016/s0309-1740(00)00039-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/1999] [Revised: 03/22/2000] [Accepted: 03/22/2000] [Indexed: 11/22/2022]
Abstract
The use of low cost meats to adulterate meats and meat products has been reported. Appropriate methods of analysis then are needed in order to detect this practice. The dot-ELISA method was used to identify the meat of different animal species and to detect adulteration of hamburgers. Antisera to bovine, chicken, swine and horse albumin were produced and they could detect the meat extract of the homologous species at concentrations as low as 0.6%. Thus, the anti-albumin antisera could identify bovine, chicken, swine and horse meat with adequate specificity and sensitivity both in isolation and when added to hamburger. Commercial samples of bovine, chicken and swine hamburgers showed no adulteration with bovine, chicken, swine or horse meats. Our expectation of hamburger adulteration was not confirmed.
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Meyer UJ, Trau D, Key G, Meusel M, Spener F. Comparison of Different Types of Immunoaffinity Reactors in an Electrochemical Flow Injection Immunoanalysis System Developed for Residue Analysis. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242429909015226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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12
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Zimmermann M, Hunziker P, Delamarche E. Autonomous capillary system for one-step immunoassays. Biomed Microdevices 2008; 11:1-8. [DOI: 10.1007/s10544-008-9187-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Reig M, Toldrá F. Veterinary drug residues in meat: Concerns and rapid methods for detection. Meat Sci 2008; 78:60-7. [DOI: 10.1016/j.meatsci.2007.07.029] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2007] [Revised: 07/27/2007] [Accepted: 07/27/2007] [Indexed: 10/23/2022]
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14
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Hsu Y, Pestka JJ, Smith DM. ELISA to Quantify Triose Phosphate Isomerase to Potentially Determine Processing Adequacy in Ground Beef. J Food Sci 2006. [DOI: 10.1111/j.1365-2621.1999.tb15097.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Y.‐C. Hsu
- The authors are affiliated with the Dept. of Food Science & Human Nutrition, Michigan State Univ., East Lansing, MI 48824‐1224. Direct inquiries to Dr. Denise M. Smith
| | - J. J. Pestka
- The authors are affiliated with the Dept. of Food Science & Human Nutrition, Michigan State Univ., East Lansing, MI 48824‐1224. Direct inquiries to Dr. Denise M. Smith
| | - D. M. Smith
- The authors are affiliated with the Dept. of Food Science & Human Nutrition, Michigan State Univ., East Lansing, MI 48824‐1224. Direct inquiries to Dr. Denise M. Smith
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Goodridge CF, Beaudry RM, Pestka JJ, Smith DM. ELISA for monitoring lipid oxidation in chicken myofibrils through quantification of hexanal-protein adducts. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2003; 51:7533-7539. [PMID: 14664503 DOI: 10.1021/jf034553f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The objectives of this study were to optimize a monoclonal competitive indirect enzyme-linked immunosorbent assay (CI-ELISA) for hexanal detection, optimize solubilization and alkylation procedures for the formation of hexanal-protein adducts, and compare the ability the CI-ELISA, thiobarbituric acid reactive substances assay (TBARS), and a solid-phase microextraction-gas chromatography-mass spectrometry (GC/MS-SPME) method for monitoring lipid oxidation in freeze-dried chicken protein. Freeze-dried myofibrils with added methyl linoleate (0.6 mmol/g of protein) were stored at 50 degrees C at two water activities (a(w) = 0.30 and 0.75) for 5 days. Hexanal was measured by GC/MS-SPME and CI-ELISA, and malonaldehyde by TBARS. At an a(w) of 0.30, 34.7 and 39.7 microg of hexanal/g of myofibril were detected by GC/MS-SPME and CI-ELISA, respectively, after 4 days of storage. At an a(w) of 0.75, 39.8 and 61.1 microg of hexanal/g of myofibril were detected by GC/MS-SPME and CI-ELISA, respectively, after 4 days of storage. The CI-ELISA was well correlated with the GC/MS-SPME (r = 0.78) and TBARS (r = 0.87) methods. The correlation of the hexanal-specific CI-ELISA to both GC/MS-SPME and TBARS verified the ability of the CI-ELISA to be used as an index of lipid oxidation, offering the convenience for use in a kit to be utilized within a food-processing facility.
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Affiliation(s)
- Carolyn F Goodridge
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan 48824, USA.
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Goodridge C, Goodridge L, Gottfried D, Edmonds P, Wyvill JC. A rapid most-probable-number-based enzyme-linked immunosorbent assay for the detection and enumeration of Salmonella Typhimurium in poultry wastewater. J Food Prot 2003; 66:2302-6. [PMID: 14672228 DOI: 10.4315/0362-028x-66.12.2302] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The rapid and accurate detection and enumeration of low levels of Salmonella Typhimurium in food processing facilities are critical components of an effective hazard analysis critical control point program. The objective of this study was to develop a rapid (8 h) most probable number (MPN)-enzyme-linked immunosorbent assay (ELISA) for the detection and enumeration of Salmonella Typhimurium in wastewater. The specific objectives were to (i) characterize poly- and monoclonal Salmonella Typhimurium-specific antibodies in order to select the most specific and sensitive antibody for Salmonella Typhimurium detection, and (ii) validate the MPN assay through a correlation between the 8-h MPN-ELISA and the traditional 48-h Salmonella Typhimurium MPN method in poultry scald water. Poultry scald water samples were spiked with 10 and 50 CFU/ml of Salmonella Typhimurium. The traditional MPN method used a 48-h enrichment period followed by an analysis, while the MPN-ELISA used a 5-h enrichment period followed by a 3-h ELISA analysis. No differences (P < 0.05) were found between the traditional MPN and the MPN-ELISA, indicating the promise of the MPN-ELISA for the rapid detection and enumeration of Salmonella Typhimurium within an 8-h shift. This abbreviated assay will permit increased product sampling and more rapid movement of food between production and processing, resulting in reduced spoilage and quality losses.
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Affiliation(s)
- C Goodridge
- Electro-Optics, Environment and Materials Laboratory, Georgia Tech Research Institute, Atlanta, Georgia 30332-0823, USA.
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17
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McCarney B, Traynor IM, Fodey TL, Crooks SR, Elliott CT. Surface plasmon resonance biosensor screening of poultry liver and eggs for nicarbazin residues. Anal Chim Acta 2003. [DOI: 10.1016/s0003-2670(02)01470-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Chapter 5 Research and development on biosensors for food analysis in India. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s1061-8945(03)80007-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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19
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Connolly L, Fodey TL, Crooks SRH, Delahaut P, Elliott CT. The production and characterisation of dinitrocarbanilide antibodies raised using antigen mimics. J Immunol Methods 2002; 264:45-51. [PMID: 12191508 DOI: 10.1016/s0022-1759(02)00040-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Polyclonal antibodies were produced to detect the coccidiostat nicarbazin. Due to structural constraints of the active component of nicarbazin, dinitrocarbanilide (DNC), three different compounds that shared a common substructure with DNC were used as antigen mimics. The compounds (N-succinyl-L-alanyl-L-alanyl-L-alanine 4-nitroanilide (SAN), L-glutamic acid gamma-(p-nitroanilide) (GAN) and p-nitrosuccinanilic acid (NSA)) were conjugated to a carrier protein and used in the immunisation of rabbits. Five different polyclonal sera were produced and consequently characterised. The antibodies exhibited an IC(50) range of 2.3-7.6 ng/ml using a competitive ELISA procedure. Serum from one rabbit, R555, exhibited an IC(50) of 2.9 ng/ml for DNC and cross-reactivity studies showed that this serum was specific for DNC and did not cross-react with other coccidiostats such as halofuginone, toltrazuril or ronidazole.
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Affiliation(s)
- Lisa Connolly
- Veterinary Sciences Division, Department of Agriculture and Rural Development for Northern Ireland, Stoney Road, Northern Ireland, Belfast, UK.
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Zielinski TL, Smith SA, Pestka JJ, Gray JI, Smith DM. Elisa to quantify hexanal-protein adducts in a meat model system. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2001; 49:3017-3023. [PMID: 11410003 DOI: 10.1021/jf001151o] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Monoclonal antibodies (MAb) were produced to hexanal-bovine serum albumin conjugates. An indirect competitive ELISA was developed with a detection range of 1-50 ng of hexanal/mL. Hexanal conjugated to three different proteins was recognized, whereas free hexanal and the native proteins were not detected. The antibody cross-reacted with pentanal, heptanal, and 2-trans-hexenal conjugated to chicken serum albumin (CSA) with cross-reactivities of 37.9, 76.6, and 45.0%, respectively. There was no cross-reactivity with propanal, butanal, octanal, and nonanal conjugated to CSA. The hexanal content of a meat model system was determined using MAb and polyclonal antibody-based ELISAs and compared with analysis by a dynamic headspace gas chromatographic (HS-GC) method and a thiobarbituric acid reactive substances (TBARS) assay. Both ELISAs showed strong correlations with the HS-GC and TBARS methods. ELISAs may be a fast and simple alternative to GC for monitoring lipid oxidation in meat.
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Affiliation(s)
- T L Zielinski
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
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Holtzapple CK, Pishko EJ, Stanker LH. Separation and quantification of two fluoroquinolones in serum by on-line high-performance immunoaffinity chromatography. Anal Chem 2000; 72:4148-53. [PMID: 10994977 DOI: 10.1021/ac000065k] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
To demonstrate that two structurally similar chemicals can be extracted from a complex matrix and then separated from each other on the basis of their relative affinities for an antibody, an automated column-switching system was used, incorporating on-line, high-performance immunoaffinity chromatography (HPIAC). A high-affinity monoclonal antibody (Mab Sara-95) against the fluoroquinolone sarafloxacin was covalently cross-linked to a protein G column and used to capture fluoroquinolones in fortified serum samples. Interference from matrix components adhering nonspecifically to the column was minimized by the insertion of a protein G cleanup column between the injection port and the Mab Sara-95 derivatized HPIAC column. Upon injection, serum samples containing the fluoroquinolones passed through both columns. The cleanup column detained serum components, that otherwise would bind nonspecifically to the HPIAC column, but allowed the fluoroquinolones to pass through unhindered to the HPIAC column. The fluoroquinolones were then eluted from the HPIAC column according to their relative affinities for the antibody, and individual peaks were monitored using fluorescence detection. By using an on-line cleanup column in tandem with an HPIAC column, the fluoroquinolones could be separated from the serum matrix and then separated from each other on the basis of their affinity for Mab Sara-95 without the use of organic solvents or reversed-phase liquid chromatography (RPLC). This method demonstrates true immunoaffinity separation of structurally related compounds in a complex matrix.
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Affiliation(s)
- C K Holtzapple
- Agricultural Research Service, U.S. Department of Agriculture, College Station, Texas 77845, USA.
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Smith SA, Pestka JJ, Gray JI, Smith DM. Production and specificity of polyclonal antibodies to hexanal-lysine adducts. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 1999; 47:1389-1395. [PMID: 10563986 DOI: 10.1021/jf980803u] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Hexanal content is a widely used index of lipid oxidation in foods. The objectives of this study were to develop antibodies to hexanal-lysine adducts, devise an ELISA, and characterize antibody specificity. Hexanal was made immunogenic by covalent attachment to lysine side chains of bovine serum albumin via reductive alkylation. Polyclonal antibodies had antiserum titers as high as 6.15 x 10(5). A competitive indirect ELISA was developed with a detection limit of 0.7 ng of hexanal/mL. Antibodies were carrier-independent, reacting with hexanal conjugates of several proteins but not with the corresponding native proteins. Cross-reactivities with chicken serum albumin conjugates of n-heptanal, n-pentanal, and n-octanal were 86. 3, 11.8, and 2.2%, respectively. Antibodies reacted strongly with hexanal-modified lysine and hexanal-modified epsilon-aminocaproic acid but did not recognize free amino acids or free hexanal. It may be feasible to use this ELISA to monitor lipid oxidation in food provided hexanal is alkylated to a carrier protein prior to analysis.
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Affiliation(s)
- S A Smith
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing 48824, USA
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Holtzapple CK, Buckley SA, Stanker LH. Development of antibodies against the fluoroquinolone sarafloxacin and molecular modeling studies of cross‐reactive compounds. FOOD AGR IMMUNOL 1997. [DOI: 10.1080/09540109709354930] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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SMITH D, DESROCHER L. IMMUNOASSAYS FOR DETERMINATION OF ENDPOINT PROCESSING TEMPERATURES IN POULTRY AND BEEF PRODUCTS. ACTA ACUST UNITED AC 1996. [DOI: 10.1111/j.1745-4573.1996.tb00609.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Al-Rashood KA, Abdel-Moety EM, Rauf A, Abou-Shaaban RR, Al-Khamis KI. Triacylglycerols-Profiling by High Performance Liquid Chromatography: A Tool for Detection of Pork Fat (Lard) in Processed Foods. ACTA ACUST UNITED AC 1995. [DOI: 10.1080/10826079508009316] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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WANG CHENGHSIN, SMITH DENISEM. Lactate Dehydrogenase Monoclonal Antibody Immunoassay for Detection of Turkey Meat in Beef and Pork. J Food Sci 1995. [DOI: 10.1111/j.1365-2621.1995.tb05649.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Brandon DL, Binder RG, Bates AH, Montague WC. Competitive ELISA of Thiabendazole Residues in Produce Using Indirectly Immobilized Monoclonal Antibodies. FOOD AGR IMMUNOL 1995. [DOI: 10.1080/09540109509354869] [Citation(s) in RCA: 2] [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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van Amerongen A, van Loon D, Berendsen LB, Wichers JH. Quantitative computer image analysis of a human chorionic gonadotropin colloidal carbon dipstick assay. Clin Chim Acta 1994; 229:67-75. [PMID: 7988056 DOI: 10.1016/0009-8981(94)90229-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Colloidal particles are widely used in qualitative dipstick assays for the determination of various proteins and haptens. Recently, a new colloidal label has been introduced based on elemental carbon. With this carbon label we have prepared a human chorionic gonadotropin-specific dipstick assay with a sensitivity of 10 mIU/ml. In addition, an image- and data-processing procedure for the quantification of the dipstick assay has been developed. The sum of the pixel grey levels of a carbon line was taken as a measure for this quantitative purpose. The measurement range of the assay is almost three orders of magnitude, i.e. 10 mIU/ml to 500 mIU/ml. The deviation from the mean of two dipstick determinations was 1.22% on average. The within-run and between-run precision, expressed as coefficients of variation at 50 mIU/ml were 1.03% and 1.84%, at 150 mIU/ml 2.14% and 3.77% and at 450 mIU/ml 2.55% and 5.28%, respectively. We have correlated this quantitative sol particle immunoassay with a commercial human chorionic gonadotropin specific radioimmunoassay. In an experiment with 25 human urine samples containing the hormone in amounts from 5 to 300 mIU/ml the correlation coefficient was 0.999. The sol particle immunoassay quantified by computer image analysis has been termed Sol particle Image Processed ImmunoAssay (SIPIA).
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Affiliation(s)
- A van Amerongen
- Agrotechnological Research Institute (ATO-DLO), Wageningen, The Netherlands
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Puchades R, Maquieira A, Atienza J, Montoya A. A Comprehensive Overview on the Application of Flow Injection Techniques in Immunoanalysis. Crit Rev Anal Chem 1992. [DOI: 10.1080/10408349208050857] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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