1
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Zhang D, Cai X, Zhang Q, Zhang C. Target-initiated fluorescent aptasensor based on multisite strand displacement amplification for label-free detection of ochratoxin A. Chem Commun (Camb) 2023; 59:13155-13158. [PMID: 37847525 DOI: 10.1039/d3cc04746f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
We developed a fluorescent aptasensor for label-free detection of ochratoxin A (OTA) based on TdT- and DNA polymerase-assisted multisite strand displacement amplification. This aptasensor exhibits good specificity and high sensitivity with a limit of detection (LOD) of 0.18 ng mL-1, and it can be further applied for the accurate quantification of OTA in complex real samples, holding promising applications in the field of food safety.
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Affiliation(s)
- Dandan Zhang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, China
| | - Xiangyue Cai
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, China
| | - Qian Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Chunyang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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2
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Gribble GW. Naturally Occurring Organohalogen Compounds-A Comprehensive Review. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2023; 121:1-546. [PMID: 37488466 DOI: 10.1007/978-3-031-26629-4_1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
The present volume is the third in a trilogy that documents naturally occurring organohalogen compounds, bringing the total number-from fewer than 25 in 1968-to approximately 8000 compounds to date. Nearly all of these natural products contain chlorine or bromine, with a few containing iodine and, fewer still, fluorine. Produced by ubiquitous marine (algae, sponges, corals, bryozoa, nudibranchs, fungi, bacteria) and terrestrial organisms (plants, fungi, bacteria, insects, higher animals) and universal abiotic processes (volcanos, forest fires, geothermal events), organohalogens pervade the global ecosystem. Newly identified extraterrestrial sources are also documented. In addition to chemical structures, biological activity, biohalogenation, biodegradation, natural function, and future outlook are presented.
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Affiliation(s)
- Gordon W Gribble
- Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA.
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3
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Xiao Y, Zhang X, Ma L, Fang H, Yang H, Zhou Y. Fluorescence and absorbance dual-mode immunoassay for detecting Ochratoxin A. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 279:121440. [PMID: 35660151 DOI: 10.1016/j.saa.2022.121440] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/11/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
In this work, a simple dual-mode immunoassay for detecting Ochratoxin A (OTA) was developed by mixing G-quadruplex/N-methylmesoporphyrin IX (G4/NMM) and 3,3',5,5'-tetramethylbenzidine (TMB). The fluorescence of G4/NMM can be quenched by oxidized TMB (oxTMB) because the absorbance of oxTMB overlapped with the fluorescence emission of G4/NMM. In the absence of OTA, large amounts of oxTMB were formed with blue color and the fluorescence of G4/NMM was quenched. In the presence of OTA, the concentration of oxTMB was decreased, therefore the fluorescence of G4/NMM increased. The linear range of fluorescence immunoassay was 0.195-25 ng/mL, and the linear range of the absorbance immunoassay was 0.049-1.563 ng/mL. Thus, the linear range of this dual-mode immunoassay can be expanded to 0.049-25 ng/mL. Meanwhile, the new method showed good selectivity for OTA. Besides, the satisfactory recovery rates implied the new method had a potential value for practical sample detection.
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Affiliation(s)
- Yao Xiao
- College of Life Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China
| | - Xingping Zhang
- College of Life Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China; State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Liyuan Ma
- College of Life Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China
| | - Huajuan Fang
- College of Life Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China
| | - Hualin Yang
- College of Life Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China.
| | - Yu Zhou
- College of Life Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China; College of Animal Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China.
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4
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Wen Y, Yuan Y, Zhang B, Lin J, Zhao Z, Li J, Cheng Y. Molybdenum blue mediated photothermal immunoassay for CEA detection based on Ag 4P 2O 7@Ag nanocomposites. Talanta 2022; 249:123665. [PMID: 35691125 DOI: 10.1016/j.talanta.2022.123665] [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: 01/24/2022] [Revised: 06/05/2022] [Accepted: 06/06/2022] [Indexed: 11/17/2022]
Abstract
A photothermal immunoassay was built for tumor marker detection based on Ag4P2O7@Ag nanocomposites. Ag4P2O7@Ag nanomaterials were synthesized by precipitation-photoreduction reaction, and characterized by transmission electron microscope (TEM), scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray photoelectron spectra (XPS) and X-ray powder diffraction (XRD). Come about PO43- derived from Ag4P2O7@Ag under acidic conditions react with ammonium molybdate in the action of reductant generating molybdenum blue. The photothermal change is due to molybdenum blue solution depending on the concentration of carcinoembryonic antigen (CEA) in immunoassay. Under optimal conditions, there is a linear relation between ΔT and CEA concentration in the range of 1 pg mL-1-40 ng mL-1 with the detection limit of 0.33 pg mL-1. Meanwhile, the developed photothermal immunoassay displays preferable selectivity, repeatability, and stability.
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Affiliation(s)
- Yanfei Wen
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yuan Yuan
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Bing Zhang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Jianying Lin
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Zhihuan Zhao
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Jing Li
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yan Cheng
- College of Medical Imaging, Shanxi Medical University, Taiyuan, 030001, China
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5
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Qin G, Zhou Q, Li H, Yan F, He J, Wei Y, Wang H, Chen Y, Lao S, Yang Y, Luo L, Mo R. A sensitiveWS2nanosheet sensing platform based on chemiluminescence resonance energy transfer for the detection of ochratoxin A. Aust J Chem 2022. [DOI: 10.1071/ch21285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Zhang B, Liu W, Liu Z, Fu X, Du D. Establishment of a Chemiluminescence Immunoassay Combined with Immunomagnetic Beads for Rapid Analysis Of Ochratoxin A. J AOAC Int 2021; 105:346-351. [PMID: 34599815 DOI: 10.1093/jaoacint/qsab104] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 07/18/2021] [Accepted: 07/26/2021] [Indexed: 11/14/2022]
Abstract
BACKGROUND Ochratoxins A (OTA), as the harmful mycotoxins, are toxic secondary metabolite produced by several species of Aspergillus and Penicillium. Hence, it is of vital important to establish a sensitive method to detect OTA in various grains. OBJECTIVE Herein a novel highly sensitive chemiluminescence immunoassay was developed to determination of ochratoxin A in wheat, corn, and poultry feed. METHODS The immunomagnetic beads were used as solid phase carrier and separator in the competitive chemiluminescence method, the monoclonal antibodies anti-OTA coated on immunomagnetic beads were applied as the capturing antibody, in which OTA would compete with Ochratoxin A-alkaline phosphatase (OTA-ALP) in binding with OTA antibodies. RESULTS The proposed method exhibited good linearity (R2 ≥ 0.999), adequate OTA recovery rate (83.60% to 102.50%), and good repeatability. The sensitivity of the proposed method was 2.05 pg/mL. In addition, the method was highly selective, it did not have cross-reaction with other mycotoxin (e.g., AFB1, DON, ZEN). Furthermore, the developed method was applied in the analysis of wheat, corn and two animal feeds successfully, the results obtained by the chemiluminescence method showed the high correlation with those obtained by HPLC method (correlation coefficient 0.9958) when testing each extract by both methods. CONCLUSIONS This strategy shows great potential application for other toxic and harmful mycotoxin detection. HIGHLIGHTS A novel highly rapid and sensitive chemiluminescence immunoassay was established to quantitation for ochratoxin A.
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Affiliation(s)
- Bo Zhang
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China.,Kangyuan Techbio Biological Technology Co., Ltd, Suqian, 223600, China
| | - Wenting Liu
- College of Pharmacy, Nankai University, Tianjin, 300350, China
| | - Zhenjiang Liu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xiaoling Fu
- The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Daolin Du
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
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7
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Becheva ZR, Atanasova MK, Ivanov YL, Godjevargova TI. Magnetic Nanoparticle-Based Fluorescence Immunoassay for Determination of Ochratoxin A in Milk. FOOD ANAL METHOD 2020. [DOI: 10.1007/s12161-020-01848-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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8
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Li Y, Zhang N, Wang H, Zhao Q. An immunoassay for ochratoxin A using tetramethylrhodamine-labeled ochratoxin A as a probe based on a binding-induced change in fluorescence intensity. Analyst 2020; 145:651-655. [DOI: 10.1039/c9an01879d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In an immunoassay, ochratoxin A (OTA) competitively displaces the bound tetramethylrhodamine (TMR)-OTA fluorescent probe from the antibody, causing a decrease in fluorescence.
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Affiliation(s)
- Yapiao Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology
- Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing 100085
- China
| | - Ning Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology
- Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing 100085
- China
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology
- Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing 100085
- China
| | - Qiang Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology
- Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing 100085
- China
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9
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Maragos CM, Uchiyama Y, Kobayashi N, Kominato F, Sugita-Konishi Y. Development and Characterization of Monoclonal Antibodies for the Mycotoxin Citreoviridin. Toxins (Basel) 2019; 11:toxins11110630. [PMID: 31671523 PMCID: PMC6891493 DOI: 10.3390/toxins11110630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 10/24/2019] [Accepted: 10/28/2019] [Indexed: 02/06/2023] Open
Abstract
Citreoviridin (CTV) in an inhibitor of mitochondrial ATPase that has been isolated from molded yellow rice and linked to the human disease Shoshin-kakke (acute cardiac beriberi). The disease results from a deficiency of thiamine, however, purified CTV can reproduce the symptoms in experimental animals. The link between CTV and Shoshin-kakke has been difficult to resolve, in part because cases of the disease are rare. In addition to rice, CTV has been found in maize, pecan nuts, and wheat products. A method to screen for CTV and its geometric isomer, iso-CTV, in commodities was developed, based upon the isolation of two novel monoclonal antibodies (mAb). In an antigen-immobilized competitive enzyme-linked immunosorbent assay format (CI-ELISA), the observed IC50s for CTV were 11 ng/mL and 18 ng/mL (mAbs 2-2 and 2-4, respectively). The assays were relatively tolerant to methanol and acetonitrile, which allowed their application to the detection of CTV in spiked polished white rice. For quantification, a standard mixture of CTV and iso-CTV was used, along with matrix matched calibration. The dynamic range of the ELISA using mAb 2-4 was equivalent to 0.23 to 2.22 mg/kg in rice. Recoveries over the range of 0.36 to 7.23 mg/kg averaged 97 ± 10%. The results suggest that the mAb 2-4-based immunoassay can be applied to the screening of white rice for CTV. Both mAbs were also observed to significantly enhance the fluorescence of the toxin.
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Affiliation(s)
- Chris M Maragos
- Mycotoxin Prevention and Applied Microbiology Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Peoria, IL 61604, USA.
| | - Yosuke Uchiyama
- Department of Food and Life Science, Graduate School of Life and Environmental Sciences, Azabu University, Sagamihara, Kanagawa 252-5201, Japan.
| | - Naoki Kobayashi
- Department of Food and Life Science, Graduate School of Life and Environmental Sciences, Azabu University, Sagamihara, Kanagawa 252-5201, Japan.
| | | | - Yoshiko Sugita-Konishi
- Department of Food and Life Science, Graduate School of Life and Environmental Sciences, Azabu University, Sagamihara, Kanagawa 252-5201, Japan.
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10
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Qiu S, Yuan L, Wei Y, Zhang D, Chen Q, Lin Z, Luo L. DNA template-mediated click chemistry-based portable signal-on sensor for ochratoxin A detection. Food Chem 2019; 297:124929. [PMID: 31253344 DOI: 10.1016/j.foodchem.2019.05.203] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 05/13/2019] [Accepted: 05/30/2019] [Indexed: 11/29/2022]
Abstract
A novel signal-on portable sensing system has been developed for OTA detection using personal glucose meter (PGM) as signal transducer. In the study, we explore the potential of using a short dsDNA as template to trigger the "click" ligation of two DNA strands, further improve the stability of DNA strand on the magnetic beads (MBs) surface, and thereby reduce the background signal. Compared with no "click" ligation, the background signal decreases 7.5 times. Both the sensitivity and selectivity are greatly promoted. A high sensitivity with OTA detection down to 72 pg/mL is achieved, which is comparable with several existing detectors, such as fluorescence-based detectors and electrochemical detectors. The feasibility of the strategy in real samples is well verified and evaluated by detecting OTA in feed samples, indicating the potential application in the food safety field.
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Affiliation(s)
- Suyan Qiu
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi 330200, China
| | - Lijuan Yuan
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi 330200, China
| | - Yihua Wei
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi 330200, China
| | - Dawen Zhang
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi 330200, China
| | - Qinglong Chen
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi 330200, China
| | - Zhenyu Lin
- MOE Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China.
| | - Linguang Luo
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi 330200, China.
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11
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Zhang C, Zhang Q, Tang X, Zhang W, Li P. Development of an Anti-Idiotypic VHH Antibody and Toxin-Free Enzyme Immunoassay for Ochratoxin A in Cereals. Toxins (Basel) 2019; 11:toxins11050280. [PMID: 31137467 PMCID: PMC6563187 DOI: 10.3390/toxins11050280] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/11/2019] [Accepted: 05/12/2019] [Indexed: 12/11/2022] Open
Abstract
Enzyme-linked immunosorbent assay (ELISA) test kits have been widely used for the determination of mycotoxins in agricultural products and foods, however, this test uses toxin standards with high toxicity and carcinogenicity that seriously threaten human health. In this work, the anti-idiotypic nanobody VHH 2-24 was first developed and then, using it as a surrogate standard, a toxin-free enzyme immunoassay for ochratoxin A (OTA) was established. The IC50 value of the VHH 2-24 surrogate standard-based ELISA was 0.097 µg/mL, with a linear range of 0.027–0.653 µg/mL. The average recoveries were tested by spike-and-recovery experiments, and ranged from 81.8% to 105.0%. The accuracy of the developed ELISA for detecting OTA was further verified by using the high performance liquid chromatography (HPLC) method, and an excellent correlation was observed. In summary, the toxin-free ELISA established in this study proves the latent use of the anti-idiotypic VHH as a surrogate calibrator for other mycotoxins and highly toxic small molecule analysis to improve assay properties for highly sensitive analyte determination in agricultural products.
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Affiliation(s)
- Caixia Zhang
- School of Life Sciences, Hubei University, Wuhan 430062, China.
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
| | - Qi Zhang
- School of Life Sciences, Hubei University, Wuhan 430062, China.
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
- Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China.
| | - Xiaoqian Tang
- School of Life Sciences, Hubei University, Wuhan 430062, China.
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
- Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China.
| | - Wen Zhang
- School of Life Sciences, Hubei University, Wuhan 430062, China.
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Peiwu Li
- School of Life Sciences, Hubei University, Wuhan 430062, China.
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
- Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China.
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12
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Sultana A, Sazawa K, Okazaki T, Islam MS, Hata N, Sugawara K, Kuramitz H. Adsorptive Voltammetry for the Determination of Ochratoxin A Using Enrichment Effect by Cationic Surfactants. ELECTROANAL 2018. [DOI: 10.1002/elan.201800226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ayesha Sultana
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research; University of Toyama; Gofuku 3190 Toyama 930-8555 Japan
| | - Kazuto Sazawa
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research; University of Toyama; Gofuku 3190 Toyama 930-8555 Japan
| | - Takuya Okazaki
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research; University of Toyama; Gofuku 3190 Toyama 930-8555 Japan
| | - Md. Saiful Islam
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research; University of Toyama; Gofuku 3190 Toyama 930-8555 Japan
| | - Noriko Hata
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research; University of Toyama; Gofuku 3190 Toyama 930-8555 Japan
| | | | - Hideki Kuramitz
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research; University of Toyama; Gofuku 3190 Toyama 930-8555 Japan
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Zejli H, Goud KY, Marty JL. Label free aptasensor for ochratoxin A detection using polythiophene-3-carboxylic acid. Talanta 2018; 185:513-519. [PMID: 29759234 DOI: 10.1016/j.talanta.2018.03.089] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 03/24/2018] [Accepted: 03/26/2018] [Indexed: 01/17/2023]
Abstract
This work demonstrates the development of electrochemical aptasensor using ochratoxin A (OTA) aptamers. Different aptamer coupling strategies were tested using polythiophene-carboxylic acid (PT3C) and polypyrrole-3-carboxylic acid (PP3C). The best sensitivity was recorded by polythiophene-3-carboxylic acid (PT3C) on screen-printed carbon electrode (SPCE) to attain the direct detection of OTA. The quantification of OTA was achieved by using electrochemical impedance spectroscopy. A good dynamic range 0.125-2.5 ng ml-1 was obtained for OTA with limit of detection (LOD) 0.125 ng ml-1 and Limit of quantification (LOQ) 0.3 ng ml-1 respectively. The good reproducibility was recorded with RSD% of 3.68. The obtained straight line equation was y = 0.4061 × + 1.03, r = 0.99. For real sample applications, the developed aptasensors were demonstrated in coffee samples. The aptasensor displayed good recovery values in the range 88-89%, thus exhibited the effectiveness of proposed aptasensor for such complex matrices.
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Affiliation(s)
- H Zejli
- Team chemistry applied physic, Faculty of Sciences, 8106 Agadir, Morocco
| | - K Yugender Goud
- Department of Chemistry, National Institute of Technology, Warangal, Telangana 506004, India
| | - Jean Louis Marty
- BAE Laboratory, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan 66860, France
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14
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Liu A, Anfossi L, Shen L, Li C, Wang X. Non-competitive immunoassay for low-molecular-weight contaminant detection in food, feed and agricultural products: A mini-review. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2017.11.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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15
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Amplified impedimetric immunosensor based on instant catalyst for sensitive determination of ochratoxin A. Biosens Bioelectron 2016; 86:386-392. [DOI: 10.1016/j.bios.2016.06.080] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 06/19/2016] [Accepted: 06/27/2016] [Indexed: 01/01/2023]
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16
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Li T, Choi YH, Shin YB, Kim HJ, Kim MG. A fluorescence enhancement-based label-free homogeneous immunoassay of benzo[a]pyrene (BaP) in aqueous solutions. CHEMOSPHERE 2016; 150:407-413. [PMID: 26796590 DOI: 10.1016/j.chemosphere.2016.01.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 12/15/2015] [Accepted: 01/04/2016] [Indexed: 06/05/2023]
Abstract
A fluorescence enhancement-based immunoassay has been developed for the detection of the polycyclic aromatic hydrocarbons (PAH), benzo[a]pyrene (BaP), in aqueous solutions. The results of this study show that BaP, which inefficiently fluoresces in aqueous solution, displays enhanced fluorescence when bound to the anti-BaP antibody (anti-BaP), as part of a label-free immunoassay system. Binding to anti-BaP results in a 3.12-fold increase in the fluorescence intensity of BaP, which emits at 435 nm when excited at 280 nm, due to the hydrophobic interaction and fluorescence resonance energy transfer (FRET) between antibody and antigen. As result of this phenomenon, the antibody-based fluorescence immunoassay system can be used to detect BaP specifically with a limit of detection (LOD) of 0.06 ng mL(-1). Finally, extraction recoveries of BaP from spiked wheat and barley samples were found to be in the range of 80.5-87.0% and 92.9-92.1%, respectively.
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Affiliation(s)
- Taihua Li
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210-037, China
| | - Yo Han Choi
- Department of Chemistry, School of Physics and Chemistry, Gwangju Institute of Science & Technology (GIST), 261 Cheomdan-gwagiro, Gwangju 500-712, South Korea; Department of Microbiology, College of Medicine, Chungnam National University, Daejeon 301-747, South Korea
| | - Yong-Beom Shin
- Biomedical Translational Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 305-806, South Korea
| | - Hwa-Jung Kim
- Department of Microbiology, College of Medicine, Chungnam National University, Daejeon 301-747, South Korea
| | - Min-Gon Kim
- Department of Chemistry, School of Physics and Chemistry, Gwangju Institute of Science & Technology (GIST), 261 Cheomdan-gwagiro, Gwangju 500-712, South Korea; Advanced Photonics Research Institute, Gwangju Institute of Science & Technology (GIST), 261 Cheomdan-gwagiro, Gwangju 500-712, South Korea.
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17
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Jo EJ, Mun H, Kim SJ, Shim WB, Kim MG. Detection of ochratoxin A (OTA) in coffee using chemiluminescence resonance energy transfer (CRET) aptasensor. Food Chem 2016; 194:1102-7. [DOI: 10.1016/j.foodchem.2015.07.152] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 03/23/2015] [Accepted: 07/07/2015] [Indexed: 12/13/2022]
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18
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Intrinsic Förster Resonance Energy Transfer Imaging Technique for Detection of Native Protein in Live Cells. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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19
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Ha TH. Recent Advances for the Detection of Ochratoxin A. Toxins (Basel) 2015; 7:5276-300. [PMID: 26690216 PMCID: PMC4690132 DOI: 10.3390/toxins7124882] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 11/25/2015] [Accepted: 11/26/2015] [Indexed: 12/15/2022] Open
Abstract
Ochratoxin A (OTA) is one of the mycotoxins secreted by Aspersillus and Penicillium that can easily colonize various grains like coffee, peanut, rice, and maize. Since OTA is a chemically stable compound that can endure the physicochemical conditions of modern food processing, additional research efforts have been devoted to develop sensitive and cost-effective surveillance solutions. Although traditional chromatographic and immunoassays appear to be mature enough to attain sensitivity up to the regulation levels, alternative detection schemes are still being enthusiastically pursued in an attempt to meet the requirements of rapid and cost-effective detections. Herein, this review presents recent progresses in OTA detections with minimal instrumental usage, which have been facilitated by the development of OTA aptamers and by the innovations in functional nanomaterials. In addition to the introduction of aptamer-based OTA detection techniques, OTA-specific detection principles are also presented, which exclusively take advantage of the unique chemical structure and related physicochemical characteristics.
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Affiliation(s)
- Tai Hwan Ha
- BioNanotechnology Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea.
- Nanobiotechnology (Major), Korea University of Science & Technology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea.
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20
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Yang J, Zhen L, Ren F, Campbell J, Rorrer GL, Wang AX. Ultra-sensitive immunoassay biosensors using hybrid plasmonic-biosilica nanostructured materials. JOURNAL OF BIOPHOTONICS 2015; 8:659-67. [PMID: 25256544 PMCID: PMC4758816 DOI: 10.1002/jbio.201400070] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 08/12/2014] [Accepted: 09/08/2014] [Indexed: 05/24/2023]
Abstract
We experimentally demonstrate an ultra-sensitive immunoassay biosensor using diatom biosilica with self-assembled plasmonic nanoparticles. As the nature-created photonic crystal structures, diatoms have been adopted to enhance surface plasmon resonances of metal nanoparticles on the surfaces of diatom frustules and to increase the sensitivity of surface-enhanced Raman scattering (SERS). In this study, a sandwich SERS immunoassay is developed based on the hybrid plasmonic-biosilica nanostructured materials that are functionalized with goat anti-mouse IgG. Our experimental results show that diatom frustules improve the detection limit of mouse IgG to 10 pg/mL, which is ˜100× better than conventional colloidal SERS sensors on flat glass. Ultra-sensitive immunoassay biosensor using diatom biosilica with self-assembled plasmonic nanoparticles.
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Affiliation(s)
- Jing Yang
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, 97331, USA
| | - Le Zhen
- School of Chemical, Biological & Environmental Engineering, Oregon State University, Corvallis, 97331, USA
| | - Fanghui Ren
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, 97331, USA
| | - Jeremy Campbell
- School of Chemical, Biological & Environmental Engineering, Oregon State University, Corvallis, 97331, USA
| | - Gregory L Rorrer
- School of Chemical, Biological & Environmental Engineering, Oregon State University, Corvallis, 97331, USA.
| | - Alan X Wang
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, 97331, USA.
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21
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A Microfluidic Love-Wave Biosensing Device for PSA Detection Based on an Aptamer Beacon Probe. SENSORS 2015; 15:13839-50. [PMID: 26110408 PMCID: PMC4507688 DOI: 10.3390/s150613839] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 05/29/2015] [Accepted: 06/09/2015] [Indexed: 11/30/2022]
Abstract
A label-free and selective aptamer beacon-based Love-wave biosensing device was developed for prostate specific antigen (PSA) detection. The device consists of the following parts: LiTaO3 substrate with SiO2 film as wave guide layer, two set of inter-digital transducers (IDT), gold film for immobilization of the biorecongniton layer and a polydimethylsiloxane (PDMS) microfluidic channels. DNA aptamer, or “artificial antibody”, was used as the specific biorecognition probe for PSA capture. Some nucleotides were added to the 3'-end of the aptamer to form a duplex with the 3'-end, turning the aptamer into an aptamer-beacon. Taking advantage of the selective target-induced assembly changes arising from the “aptamer beacon”, highly selective and specific detection of PSA was achieved. Furthermore, PDMS microfluidic channels were designed and fabricated to realize automated quantitative sample injection. After optimization of the experimental conditions, the established device showed good performance for PSA detection between 10 ng/mL to 1 μg/mL, with a detection limit of 10 ng/mL. The proposed sensor might be a promising alternative for point of care diagnostics.
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22
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Kang HJ, Kim JH, Chung SJ. Homogeneous detection of caspase-3 using intrinsic fluorescence resonance energy transfer (iFRET). Biosens Bioelectron 2015; 67:413-8. [DOI: 10.1016/j.bios.2014.08.074] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/11/2014] [Accepted: 08/27/2014] [Indexed: 11/16/2022]
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23
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Akter R, Jeong B, Rahman MA. Stimulated mass enhancement strategy-based highly sensitive detection of a protein in serum using quartz crystal microbalance technique. Analyst 2015; 140:995-8. [DOI: 10.1039/c4an01555j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A quartz crystal microbalance immunosensor is described for highly sensitive detection of interleukin-6 in serum using a magnetic bead-supported bienzyme-catalyzed stimulated mass enhancement strategy.
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Affiliation(s)
- Rashida Akter
- Graduate School of Analytical Science and Technology
- Chungnam National University
- South Korea
| | - Bongjin Jeong
- Graduate School of Analytical Science and Technology
- Chungnam National University
- South Korea
| | - Md. Aminur Rahman
- Graduate School of Analytical Science and Technology
- Chungnam National University
- South Korea
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24
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Wang N, Gao C, Han Y, Huang X, Xu Y, Cao X. Detection of human immunoglobulin G by label-free electrochemical immunoassay modified with ultralong CuS nanowires. J Mater Chem B 2015; 3:3254-3259. [DOI: 10.1039/c4tb01881h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A novel label-free electrochemical immunoassay modified with ultralong CuS nanowires was developed for the detection of human immunoglobulin G.
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Affiliation(s)
- Ning Wang
- School of Chemistry and Environment
- Beijing University of Aeronautics and Astronautics
- Beijing
- China
| | - Caizhen Gao
- School of Chemistry and Environment
- Beijing University of Aeronautics and Astronautics
- Beijing
- China
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Science
| | - Yu Han
- School of Chemistry and Environment
- Beijing University of Aeronautics and Astronautics
- Beijing
- China
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Science
| | - Xiaomin Huang
- School of Chemistry and Environment
- Beijing University of Aeronautics and Astronautics
- Beijing
- China
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Science
| | - Ying Xu
- School of Chemistry and Environment
- Beijing University of Aeronautics and Astronautics
- Beijing
- China
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Science
| | - Xia Cao
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Science
- Beijing
- China
- School of Chemistry and Biological Engineering
- University of Science and Technology Beijing
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25
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Huang Y, Kannan P, Zhang L, Chen T, Kim DH. Concave gold nanoparticle-based highly sensitive electrochemical IgG immunobiosensor for the detection of antibody–antigen interactions. RSC Adv 2015. [DOI: 10.1039/c5ra10990f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
A concave gold nanocuboid-based electrochemical sensor was developed for the highly sensitive detection of antibody–antigen interactions.
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Affiliation(s)
- Youju Huang
- Division of Polymer and Composite Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - Palanisamy Kannan
- Singapore Centre on Environmental Life Science Engineering (SCELSE)
- Nanyang Technological University
- Singapore
| | - Lei Zhang
- Division of Polymer and Composite Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - Tao Chen
- Division of Polymer and Composite Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - Dong-Hwan Kim
- School of Chemical and Biomedical Engineering (SCBE)
- Nanyang Technological University
- Singapore
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26
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Mun H, Jo EJ, Li T, Joung HA, Hong DG, Shim WB, Jung C, Kim MG. Homogeneous assay of target molecules based on chemiluminescence resonance energy transfer (CRET) using DNAzyme-linked aptamers. Biosens Bioelectron 2014; 58:308-13. [PMID: 24658027 DOI: 10.1016/j.bios.2014.02.008] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 01/27/2014] [Accepted: 02/05/2014] [Indexed: 12/28/2022]
Abstract
We have designed a single-stranded DNAzyme-aptamer sensor for homogeneous target molecular detection based on chemiluminescence resonance energy transfer (CRET). The structure of the engineered single-stranded DNA (ssDNA) includes the horseradish peroxidase (HRP)-like DNAzyme, optimum-length linker (10-mer-length DNA), and target-specific aptamer sequences. A quencher dye was modified at the 3' end of the aptamer sequence. The incorporation of hemin into the G-quadruplex structure of DNAzyme yields an active HRP-like activity that catalyzes luminol to generate a chemiluminescence (CL) signal. In the presence of target molecules, such as ochratoxin A (OTA), adenosine triphosphate (ATP), or thrombin, the aptamer sequence was folded due to the formation of the aptamer/analyte complex, which induced the quencher dye close to the DNAzyme structure. Consequently, the CRET occurred between a DNAzyme-catalyzed chemiluminescence reaction and the quencher dye. Our results showed that CRET-based DNAzyme-aptamer biosensing enabled specific OTA analysis with a limit of detection of 0.27ng/mL. The CRET platform needs no external light source and avoids autofluorescence and photobleaching, and target molecules can be detected specifically and sensitively in a homogeneous manner.
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Affiliation(s)
- Hyoyoung Mun
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Eun-Jung Jo
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Taihua Li
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Hyou-Arm Joung
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Dong-Gu Hong
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Won-Bo Shim
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Cheulhee Jung
- Department of Chemistry and Biochemistry, Institute of Cellular and Molecular Biology, University of Texas at Austin, Austin, TX 78712, USA
| | - Min-Gon Kim
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea; Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea.
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27
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Li T, Kim BB, Shim WB, Byun JY, Chung DH, Shin YB, Kim MG. Homogeneous Fluorescence Resonance Energy Transfer Immunoassay for the Determination of Zearalenone. ANAL LETT 2014. [DOI: 10.1080/00032719.2013.843186] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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28
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Chen Y, Yang M, Xiang Y, Yuan R, Chai Y. Binding-induced autonomous disassembly of aptamer-DNAzyme supersandwich nanostructures for sensitive electrochemiluminescence turn-on detection of ochratoxin A. NANOSCALE 2014; 6:1099-1104. [PMID: 24296915 DOI: 10.1039/c3nr05499c] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The self-assembled DNA nanostructure has been one of the most interesting research areas in the field of nanoscience, and the application of the DNA self-assembled nanostructures in biosensing is still in the early stage. In this work, based on the target-induced autonomous disassembly of the aptamer-DNAzyme supersandwich nanostructures, we demonstrated a highly sensitive strategy for electrochemiluminescent (ECL) detection of ochratoxin A (OTA). The aptamer-DNAzyme supersandwich nanostructures, which exhibited significant ECL quenching effect toward the oxygen/persulfate (O2/S2O8(2-)) system, were self-assembled on the gold electrode surface. The presence of the target OTA and the exonuclease (RecJf) resulted in autonomous disassembly of the nanostructures and cyclic reuse of OTA, leading to efficient recovery of the ECL emission and highly sensitive detection of OTA. Our developed method also showed high selectivity against other interference molecules and can be applied for the detection of OTA in real red wine samples, which offers the proposed method opportunities for designing new DNA-based nanostructures for biosensing applications.
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Affiliation(s)
- Ying Chen
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
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29
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Zhu YD, Peng J, Jiang LP, Zhu JJ. Fluorescent immunosensor based on CuS nanoparticles for sensitive detection of cancer biomarker. Analyst 2014; 139:649-55. [DOI: 10.1039/c3an01987j] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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30
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Evtugyn G, Porfireva A, Stepanova V, Kutyreva M, Gataulina A, Ulakhovich N, Evtugyn V, Hianik T. Impedimetric aptasensor for ochratoxin A determination based on Au nanoparticles stabilized with hyper-branched polymer. SENSORS (BASEL, SWITZERLAND) 2013; 13:16129-45. [PMID: 24287535 PMCID: PMC3892811 DOI: 10.3390/s131216129] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 11/14/2013] [Accepted: 11/18/2013] [Indexed: 02/07/2023]
Abstract
An impedimetric aptasensor for ochratoxin A (OTA) detection has been developed on the base of a gold electrode covered with a new modifier consisting of electropolymerized Neutral Red and a mixture of Au nanoparticles suspended in the dendrimeric polymer Botlorn H30®. Thiolated aptamer specific to OTA was covalently attached to Au nanoparticles via Au-S bonding. The interaction of the aptamer with OTA induced the conformational switch of the aptamer from linear to guanine quadruplex form followed by consolidation of the surface layer and an increase of the charge transfer resistance. The aptasensor makes it possible to detect from 0.1 to 100 nM of OTA (limit of detection: 0.02 nM) in the presence of at least 50 fold excess of ochratoxin B. The applicability of the aptasensor for real sample assay was confirmed by testing spiked beer samples. The recovery of 2 nM OTA was found to be 70% for light beer and 78% for dark beer.
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Affiliation(s)
- Gennady Evtugyn
- Analytical Chemistry Department, Kazan Federal University, 18 Kremlevskaya Street, Kazan 420008, Russian Federation; E-Mails: (G.E.); (A.P.); (V.S.)
| | - Anna Porfireva
- Analytical Chemistry Department, Kazan Federal University, 18 Kremlevskaya Street, Kazan 420008, Russian Federation; E-Mails: (G.E.); (A.P.); (V.S.)
| | - Veronika Stepanova
- Analytical Chemistry Department, Kazan Federal University, 18 Kremlevskaya Street, Kazan 420008, Russian Federation; E-Mails: (G.E.); (A.P.); (V.S.)
| | - Marianna Kutyreva
- Inorganic Chemistry Department, Kazan Federal University, 18 Kremlevskaya Street, Kazan 420008, Russian Federation; E-Mails: (M.K.); (A.G.); (N.U.)
| | - Alfiya Gataulina
- Inorganic Chemistry Department, Kazan Federal University, 18 Kremlevskaya Street, Kazan 420008, Russian Federation; E-Mails: (M.K.); (A.G.); (N.U.)
| | - Nikolay Ulakhovich
- Inorganic Chemistry Department, Kazan Federal University, 18 Kremlevskaya Street, Kazan 420008, Russian Federation; E-Mails: (M.K.); (A.G.); (N.U.)
| | - Vladimir Evtugyn
- Electron Microscopy Laboratory of the Faculty of Biology, Kazan Federal University, 18 Kremlevskaya Street, Kazan 420008, Russian Federation; E-Mail:
| | - Tibor Hianik
- Electron Microscopy Laboratory of the Faculty of Biology, Kazan Federal University, 18 Kremlevskaya Street, Kazan 420008, Russian Federation; E-Mail:
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31
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Zhang S, Wu H, Huan S, Zhang X, Shen G, Yu R. Gold Nanoparticle Based Fluorescence Resonance Energy Transfer Immunoassay for the Detection of the Histone Deacetylase Activity using a Fluorescent Peptide Probe. ANAL LETT 2013. [DOI: 10.1080/00032719.2013.784915] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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32
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Li T, Byun JY, Kim BB, Shin YB, Kim MG. Label-free homogeneous FRET immunoassay for the detection of mycotoxins that utilizes quenching of the intrinsic fluorescence ofantibodies. Biosens Bioelectron 2013; 42:403-8. [DOI: 10.1016/j.bios.2012.10.085] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Accepted: 10/26/2012] [Indexed: 10/27/2022]
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33
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Kaushik A, Arya SK, Vasudev A, Bhansali S. Recent Advances in Detection of Ochratoxin-A. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ojab.2013.21001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Yuan L, Lan Y, Han M, Bao J, Tu W, Dai Z. Label-free and facile electrochemical biosensing using carbon nanotubes for malondialdehyde detection. Analyst 2013; 138:3131-4. [DOI: 10.1039/c3an00041a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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35
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Ma W, Yin H, Xu L, Xu Z, Kuang H, Wang L, Xu C. Femtogram ultrasensitive aptasensor for the detection of Ochratoxin A. Biosens Bioelectron 2012; 42:545-9. [PMID: 23261687 DOI: 10.1016/j.bios.2012.11.024] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 11/17/2012] [Accepted: 11/19/2012] [Indexed: 10/27/2022]
Abstract
A simple and ultrasensitive method was developed for the detection of Ochratoxin A, utilizing an aptamer as a molecular recognition probe and real-time quantitative PCR (RT-qPCR) amplification of its complementary DNA as signal generators. Under the optimized conditions, the cycle threshold (Ct) increased linearly with 10-fold serial dilutions of Ochratoxin A (OTA) from 5×10⁻⁶ to 5 ng mL⁻¹, with a limit of detection (LOD) of 1 fg mL⁻¹. The specificity of this aptasensor was considered to be excellent, as when tested against four other toxins it produced no obvious Ct value change. Furthermore, a satisfactory analyte concentration recovery was obtained from a series of concentrations of OTA spiked into red wine. Therefore, this highly sensitive approach shows a significant potential in a wide range of target analytes.
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Affiliation(s)
- Wei Ma
- School of Food Science and Technology, State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China
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