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Emerging strategies to enhance the sensitivity of competitive ELISA for detection of chemical contaminants in food samples. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115861] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Liu R, Liu L, Song S, Cui G, Zheng Q, Kuang H, Xu C. Development of an immunochromatographic strip for the rapid detection of 10 β-agonists based on an ultrasensitive monoclonal antibody. FOOD AGR IMMUNOL 2017. [DOI: 10.1080/09540105.2017.1309358] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Rui Liu
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Liqiang Liu
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Shanshan Song
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Gang Cui
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Qiankun Zheng
- Shandong Delisi Group, Weifang, Shandong, People's Republic of China
| | - Hua Kuang
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Chuanlai Xu
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
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Liu X, Li L, Liu YQ, Shi XB, Li WJ, Yang Y, Mao LG. Ultrasensitive detection of deltamethrin by immune magnetic nanoparticles separation coupled with surface plasmon resonance sensor. Biosens Bioelectron 2014; 59:328-34. [PMID: 24747571 DOI: 10.1016/j.bios.2014.03.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 02/28/2014] [Accepted: 03/11/2014] [Indexed: 10/25/2022]
Abstract
Small molecules or analytes present in trace level are difficult to be detected directly using conventional surface plasmon resonance (SPR) sensor, due to its small changes in the refractive index induced by the binding of these analytes on the sensor surface. In this paper, a new approach that combines SPR sensor technology with Fe3O4 magnetic nanoparticles (MNPs) assays is developed for directly detecting of deltamethrin in soybean. The Fe3O4 MNPs conjugated with antibodies specific to antigen serves as both labels for enhancing refractive index change due to the capture of target analyte, and "vehicles" for the rapid delivery of analyte from a sample solution to the sensor surface. Meanwhile, SPR direct detection format without Fe3O4 MNPs and gas chromatography (GC) analysis were conducted for detection of deltamethrin in soybean to demonstrate the amplification effect of Fe3O4 MNPs. A good linear relationship was obtained between SPR responses and deltamethrin concentrations over a range of 0.01-1 ng/mL with the lowest measurable concentration of 0.01 ng/mL. The results reveal that the detection sensitivity for deltamethrin was improved by 4 orders of magnitude compared with SPR direct detection format. The recovery of 95.5-119.8% was obtained in soybean. The excellent selectivity of the present biosensor is also confirmed by two kinds of pesticides (fenvalerate and atrazine) as controls. This magnetic separation and amplification strategy has great potential for detection of other small analytes in trace level concentration, with high selectivity and sensitivity by altering the target-analyte-capture agent labeled to the carboxyl-coated Fe3O4 MNPs.
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Affiliation(s)
- Xia Liu
- College of Food Science and Technology, Hunan Agricultural University, Hunan Province Key Laboratory of Food Science and Biotechnology, Changsha 410128, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China.
| | - Lei Li
- College of Food Science and Technology, Hunan Agricultural University, Hunan Province Key Laboratory of Food Science and Biotechnology, Changsha 410128, PR China
| | - You-Qian Liu
- College of Food Science and Technology, Hunan Agricultural University, Hunan Province Key Laboratory of Food Science and Biotechnology, Changsha 410128, PR China
| | - Xing-Bo Shi
- College of Food Science and Technology, Hunan Agricultural University, Hunan Province Key Laboratory of Food Science and Biotechnology, Changsha 410128, PR China
| | - Wen-Jin Li
- College of Food Science and Technology, Hunan Agricultural University, Hunan Province Key Laboratory of Food Science and Biotechnology, Changsha 410128, PR China
| | - Yang Yang
- College of Food Science and Technology, Hunan Agricultural University, Hunan Province Key Laboratory of Food Science and Biotechnology, Changsha 410128, PR China
| | - Lu-Gang Mao
- College of Food Science and Technology, Hunan Agricultural University, Hunan Province Key Laboratory of Food Science and Biotechnology, Changsha 410128, PR China
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Gao H, Han J, Yang S, Wang Z, Wang L, Fu Z. Highly sensitive multianalyte immunochromatographic test strip for rapid chemiluminescent detection of ractopamine and salbutamol. Anal Chim Acta 2014; 839:91-6. [DOI: 10.1016/j.aca.2014.05.024] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Revised: 05/12/2014] [Accepted: 05/16/2014] [Indexed: 11/27/2022]
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Huang X, Aguilar ZP, Li H, Lai W, Wei H, Xu H, Xiong Y. Fluorescent Ru(phen)3(2+)-doped silica nanoparticles-based ICTS sensor for quantitative detection of enrofloxacin residues in chicken meat. Anal Chem 2013; 85:5120-8. [PMID: 23614687 DOI: 10.1021/ac400502v] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A Ru(phen)3(2+)-doped silica fluorescent nanoparticle (FN)-based immunochromatographic test strip (ICTS) sensor was developed for rapid, high sensitivity, easy to use, and low cost quantitative detection of enrofloxacin (ENR) residues in chicken meat. The fluorescence signal intensity of the FNs at the test line (FI(T)) and control line (FI(C)) was determined with a prototype of a portable fluorescent strip reader. Unique properties of Ru(phen)3(2+) doped silica nanoparticles (e.g., large Stokes shift, high emission quantum yield, and long fluorescence lifetime) were combined with the advantages of ICTS and an easy to make portable fluorescent strip reader. The signal was based on FI(T)/FI(C) ratio to effectively eliminate strip to strip variation and matrix effects. Various parameters that influenced the strip were investigated and optimized. Quantitative ENR detection with the FNs ICTS sensor using 80 μL sample took only 20 min, which is faster than the commercial ELISA kit (that took 90 min). The linear range of detection in chicken extract was established at 0.025-3.500 ng/mL with a half maximal inhibitory concentration at 0.22 ± 0.02 ng/mL. Using the optimized parameters, the limit of detection (LOD) for ENR using the FNs ICTS sensor was recorded at 0.02 ng/mL in chicken extract. This corresponds to 0.12 μg/kg chicken meat which is two (2) orders of magnitude better that the maximum residue limits (MRLs) imposed in Japan (10 μg/kg) and three (3) orders of magnitude better than those imposed in China. The intra- and inter-assay coefficient of variations (CVs) were 6.04% and 12.96% at 0.5 ng/mL, 6.92% and 12.61% at 1.0 ng/mL, and 6.66% and 11.88% at 2.0 ng/mL in chicken extract, respectively. The recoveries using the new FNs ICTS sensor from fifty (50) ENR-spiked chicken samples showed a highly significant correlation (R(2) = 0.9693) with the commercial enzyme-linked immunosorbent assay (ELISA) kit. The new FNs ICTS sensor is a simple, rapid, sensitive, accurate, and inexpensive quantitative detection of ENR residues in chicken meat and extracts.
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Affiliation(s)
- Xiaolin Huang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P R China
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Liang C, Zou M, Guo L, Gui W, Zhu G. Development of a bead-based immunoassay for detection of triazophos and application validation. FOOD AGR IMMUNOL 2013. [DOI: 10.1080/09540105.2011.639065] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
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Highly sensitive near-simultaneous assay of multiple “lean meat agent” residues in swine urine using a disposable electrochemiluminescent immunosensors array. Biosens Bioelectron 2013; 39:311-4. [DOI: 10.1016/j.bios.2012.07.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 07/04/2012] [Accepted: 07/07/2012] [Indexed: 11/22/2022]
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Microsphere-based flow cytometric immunoassay for the determination of citrinin in red yeast rice. Food Chem 2012; 134:2540-5. [DOI: 10.1016/j.foodchem.2012.04.072] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 11/13/2011] [Accepted: 04/15/2012] [Indexed: 11/21/2022]
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Xiao F, Lai Y, Zhang N, Bai J, Xian Y, Jin L. Photoelectrochemical Immunosensor Array Based on Thioglycolic Acid Capped CdS Quantum Dots for Multiplexed Detection of Veterinary Drug Residues. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201100548] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Wang YF, Wang DN, Zou MQ, Jin Y, Yun CL, Gao XW. Application of Suspension Array for Simultaneous Detection of Antibiotic Residues in Raw Milk. ANAL LETT 2011. [DOI: 10.1080/00032719.2011.553012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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12
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Meng M, Xi R. Review: Current Development of Immunoassay for Analyzing Veterinary Drug Residue in Foods and Food Products. ANAL LETT 2011. [DOI: 10.1080/00032719.2011.551863] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Abstract
Clenbuterol is therapeutically used for the treatment of pulmonary diseases such as bronchial asthma or for tocolytic reasons. In cattle feeding as well as in sports it is illicitly misused due to its anabolic properties to promote muscle growth. Sample preparation procedures and analytical techniques used for the detection of clenbuterol are manifold and vary with the objectives of the investigation. Methods for its detection in biological specimens, drug preparations, the environment, food and feed products are reported. They are mainly based on immunochemical, chromatographic and mass spectrometric techniques, or on capillary electrophoresis. Sample preparation primarily includes liquid-liquid extraction and solid-phase extraction. Depending on the aim of the method clenbuterol can be determined in single- or multi-analyte methods. In biological and environmental samples concentrations are generally low due to the potency of the drug. Thus, highly sensitive procedures are required for expedient analyses.
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Hu L, Zuo P, Ye BC. Multicomponent mesofluidic system for the detection of veterinary drug residues based on competitive immunoassay. Anal Biochem 2010; 405:89-95. [DOI: 10.1016/j.ab.2010.05.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2010] [Revised: 05/15/2010] [Accepted: 05/28/2010] [Indexed: 11/30/2022]
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Peng CF, Qin ZF, Ruan ZX, Xu CL, Jin ZY. Rapid Determination of Clenbuterol in Urine by a Competitive Bead Immunoassay Based on Luminex Technology. Immunol Invest 2010; 40:14-28. [DOI: 10.3109/08820139.2010.507687] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gunda NSK, Mitra SK. Modeling of dielectrophoretic transport of myoglobin molecules in microchannels. BIOMICROFLUIDICS 2010; 4:14105. [PMID: 20644674 PMCID: PMC2905271 DOI: 10.1063/1.3339773] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2009] [Accepted: 02/08/2010] [Indexed: 05/20/2023]
Abstract
Myoglobin is one of the premature identifying cardiac markers, whose concentration increases from 90 pgml or less to over 250 ngml in the blood serum of human beings after minor heart attack. Separation, detection, and quantification of myoglobin play a vital role in revealing the cardiac arrest in advance, which is the challenging part of ongoing research. In the present work, one of the electrokinetic approaches, i.e., dielectrophoresis (DEP), is chosen to separate the myoglobin. A mathematical model is developed for simulating dielectrophoretic behavior of a myoglobin molecule in a microchannel to provide a theoretical basis for the above application. This model is based on the introduction of a dielectrophoretic force and a dielectric myoglobin model. A dielectric myoglobin model is developed by approximating the shape of the myoglobin molecule as sphere, oblate, and prolate spheroids. A generalized theoretical expression for the dielectrophoretic force acting on respective shapes of the molecule is derived. The microchannel considered for analysis has an array of parallel rectangular electrodes at the bottom surface. The potential and electric field distributions are calculated using Green's theorem method and finite element method. These results also compared to the Fourier series method, closed form solutions by Morgan et al. [J. Phys. D: Appl. Phys. 34, 1553 (2001)] and Chang et al. [J. Phys. D: Appl. Phys. 36, 3073 (2003)]. It is observed that both Green's theorem based analytical solution and finite element based numerical solution for proposed model are closely matched for electric field and square electric field gradients. The crossover frequency is obtained as 40 MHz for given properties of myoglobin and for all approximated shapes of myoglobin molecule. The effect of conductivity of medium and myoglobin on the crossover frequency is also demonstrated. Further, the effect of hydration layer on the crossover frequency of myoglobin molecules is also presented. Both positive and negative DEP effects on myoglobin molecules are obtained by switching the frequency of applied electric field. The effect of different shapes of myoglobin on DEP force is studied and no significant effect on DEP force is observed. Finally, repulsion of myoglobin molecules from the electrode plane at 1 KHz frequency and 10 V applied voltage is observed. These results provide the ability of applying DEP force for manipulating nanosized biomolecules such as myoglobin.
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Affiliation(s)
- Naga Siva Kumar Gunda
- Department of Mechanical Engineering, Micro and Nano-scale Transport Laboratory, University of Alberta, Edmonton T6G 2G8, Canada
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Wang J, Wang Q, Ren L, Wang X, Wan Z, Liu W, Li L, Zhao H, Li M, Tong D, Xu J. Carboxylated magnetic microbead-assisted fluoroimmunoassay for early biomarkers of acute myocardial infarction. Colloids Surf B Biointerfaces 2009; 72:112-20. [DOI: 10.1016/j.colsurfb.2009.03.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2009] [Revised: 03/21/2009] [Accepted: 03/25/2009] [Indexed: 10/20/2022]
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Wang J, Wang X, Ren L, Wang Q, Li L, Liu W, Wan Z, Yang L, Sun P, Ren L, Li M, Wu H, Wang J, Zhang L. Conjugation of Biomolecules with Magnetic Protein Microspheres for the Assay of Early Biomarkers Associated with Acute Myocardial Infarction. Anal Chem 2009; 81:6210-7. [DOI: 10.1021/ac9007418] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jinyi Wang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Xueqin Wang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Li Ren
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Qiang Wang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Li Li
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Wenming Liu
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Zongfang Wan
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Linyan Yang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Peng Sun
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Lili Ren
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Manlin Li
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Heng Wu
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Jinfeng Wang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Lei Zhang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
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