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Liao Z, Guo W, Ning G, Wu Y, Wang Y, Ning G. A sensitive electrochemical aptasensor for zearalenone detection based on target-triggered branched hybridization chain reaction and exonuclease I-assisted recycling. Anal Bioanal Chem 2023; 415:4911-4921. [PMID: 37326832 DOI: 10.1007/s00216-023-04797-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/17/2023]
Abstract
Traditional methods for detecting antibiotic and mycotoxin residues rely on large-scale instruments, which are expensive and require complex sample pretreatment processes and professional operators. Although aptamer-based electrochemical sensors have the advantages of simplicity, speed, low cost, and high sensitivity, most aptamer-based sensors lack a signal amplification strategy due to their direct use of aptamers as probes, resulting in insufficient sensitivity. To solve the sensitivity problem in the electrochemical detection process, a novel electrochemical sensing strategy was established for ultrasensitive zearalenone (ZEN) detection on the basis of exonuclease I (Exo I) and branched hybridization chain reaction (bHCR) to amplify the signal. The amplification strategy showed excellent analytical performance towards ZEN with a low detection limit at 3.1×10-12 mol/L and a wide linear range from 10-11 to 10-6 mol/L. Importantly, the assay was utilized in the corn powder samples with satisfactory results, holding promising applications in food safety detection and environmental monitoring.
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Affiliation(s)
- Zhibing Liao
- Hunan Provincial Key Laboratory for Forestry Biotechnology & International Cooperation, Base of Science and Technology Innovation on Forest Resource Biotechnology, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Wentao Guo
- Hunan Provincial Key Laboratory for Forestry Biotechnology & International Cooperation, Base of Science and Technology Innovation on Forest Resource Biotechnology, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Guiai Ning
- Hunan Provincial Key Laboratory for Forestry Biotechnology & International Cooperation, Base of Science and Technology Innovation on Forest Resource Biotechnology, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Yaohui Wu
- Hunan Provincial Key Laboratory for Forestry Biotechnology & International Cooperation, Base of Science and Technology Innovation on Forest Resource Biotechnology, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Yonghong Wang
- Hunan Provincial Key Laboratory for Forestry Biotechnology & International Cooperation, Base of Science and Technology Innovation on Forest Resource Biotechnology, Central South University of Forestry and Technology, Changsha, 410004, China.
- Yuelushan Laboratory, Changsha, 410004, China.
| | - Ge Ning
- International Education Institute, Hunan University of Chinese Medicine, Changsha, 410208, China.
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Guo G, Xu SH, Du YT, Jiang TM, Song JL, Yang ZQ, Gao YJ. Potassium cobalt hexacyanoferrate as a peroxidase mimic for electrochemical immunosensing of Lactobacillus rhamnosus GG. Talanta 2023; 264:124746. [PMID: 37285699 DOI: 10.1016/j.talanta.2023.124746] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/09/2023]
Abstract
In this paper, the potassium cobalt hexacyanoferrate (II), K2CoFe(CN)6, with peroxidase-like activity was used for the fabrication of a novel label-free Lactobacillus rhamnosus GG (LGG) electrochemical immunosensor. The K2CoFe(CN)6 nanocubes were made by a simple hydrothermal method and followed by low-temperature calcination. In addition to structural characterization, the peroxidase-mimicking catalytic property of the material was confirmed by a chromogenic reaction. It is known that H2O2 can oxidize electroactive thionine molecules under the catalysis of horseradish peroxidase (HRP). In this nanozyme-based electrochemical immunoassay, due to the steric hindrance, the formation of immune-complex of LGG and LGG antibody on the modified GCE inhibits the catalytic activity of the peroxidase mimics of K2CoFe(CN)6 and thus reduced the current signal. Therefore, the developed electrochemical immunosensor achieved quantitative detection of LGG. Under optimal conditions, the linear range of the sensor was obtained from 101 to 106 CFU mL-1 with a minimum detection limit (LOD) of 12 CFU mL-1. Furthermore, the immunosensor was successfully applied in the quantitative detection of LGG in dairy product samples with recoveries ranging from 93.2% to 106.8%. This protocol presents a novel immunoassay method, which provides an alternative implementation pathway for the quantitative detection of microorganisms.
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Affiliation(s)
- Ge Guo
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Su-Hui Xu
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Yi-Tian Du
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Tie-Min Jiang
- South Asia Branch of National Engineering Research Center of Dairy Health for Maternal and Child Health, Guilin University of Technology, Guilin 541004, China
| | - Jia-Le Song
- Department of Nutrition and Food Hygiene, Guilin Medical University, Guilin, Guangxi, 541004, China; Guangxi Key Laboratory of Environmental Exposomics and Entire Lifecycle Health, Guilin Medical University, Guilin, Guangxi, 541004, China
| | - Zhen-Quan Yang
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China.
| | - Ya-Jun Gao
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China.
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Lai H, Ming P, Wu M, Wang S, Sun D, Zhai H. An electrochemical aptasensor based on P-Ce-MOF@MWCNTs as signal amplification strategy for highly sensitive detection of zearalenone. Food Chem 2023; 423:136331. [PMID: 37182496 DOI: 10.1016/j.foodchem.2023.136331] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 04/22/2023] [Accepted: 05/05/2023] [Indexed: 05/16/2023]
Abstract
In this research, a signal-off electrochemical aptasensor with high sensitivity was constructed for trace detection of zearalenone (ZEN). Specifically, Ce-based metal-organic framework and multi-walled carbon nanotubes nanocomposite was functionalized with polyethyleneimine (P-Ce-MOF@MWCNTs) and served as sensing platform for its high surface area and excellent electrochemical active. Subsequently, toluidine blue (TB) was electrodeposited as the signal probe, and platinum@gold nanoparticles (Pt@Au) were dropped for the attachment of aptamer (ZEA). In the presence of ZEN, the ZEA would specifically recognize and combine with the target, causing a decrease of electrochemical signal from TB. Under the optimal conditions, the aptasensor exhibited good linear relationship for ZEN in a concentration range from 5.0 × 10-5 to 50.0 ng/mL, while the limit of detection (LOD, S/N = 3) and limit of quantitation (LOQ, S/N = 10) were 1.0 × 10-5 ng/mL and 2.9 × 10-5 ng/mL, respectively. Ultimately, the aptasensor was successfully applied into ZEN detection in semen coicis real samples.
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Affiliation(s)
- Haohong Lai
- College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Pingtao Ming
- College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Maoqiang Wu
- College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Shumei Wang
- College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Duanping Sun
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Haiyun Zhai
- College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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Naidoo L, Uwaya GE, Meier F, Bisetty K. A novel electrochemical sensor for the detection of zearalenone in food matrices using PEGylated Fe3O4 nanoparticles supported by in-silico and multidetector AF4. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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Rajeswari B, Sravani B, Cheffena M, Janraj Naik R, Veera Manohara Reddy Y, Madhavi G, Suresh Reddy K, Jong Kim M. Ethylene glycol-assisted synthesis of reduced graphene oxide-supported bimetallic Pt-Co nanoparticles for the ultra-sensitive detection of tert-butyl hydroquinone. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Zhang G, Zhang X, Zhang Q, Chen W, Wu S, Yang H, Zhou Y. MnO 2 nanosheets-triggered oxVB 1 fluorescence immunoassay for detection zearalenone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 286:121954. [PMID: 36228491 DOI: 10.1016/j.saa.2022.121954] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/22/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
In this study, an alkaline phosphatase (ALP)-mediated fluorescence immunoassay for detecting zearalenone (ZEN) was established based on the oxVB1 fluorescence signal modulated by MnO2 nanosheets (MnO2 NS). As the ALP-antibody content increased, more 2-phosphoascorbic acid (AAP) was hydrolyzed to ascorbic acid (AA) which destroyed the MnO2 NS rapidly. In the lack of MnO2 NS, VB1 cannot be oxidized to oxVB1 for emitting fluorescence. On the contrary, the fluorescence of oxVB1 recovered slowly with the decrease of the ALP-antibody concentration. In the optimization condition, the detection limit of this method was 15.5 pg mL-1. Moreover, the recovery of ZEN in real samples ranged from 94.24 % to 108.26 %, which indicated the remarkable accuracy and reliability of this approach. Meanwhile, the proposal of this fluorescence immunoassay provided a new possibility for detecting other targets by replacing antibodies and antigens.
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Affiliation(s)
- Guohao Zhang
- College of Animal Science, Yangtze University, Jingzhou 434025, China
| | - Xingping Zhang
- College of Life Science, Yangtze University, Jingzhou 434025, China; State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Qian Zhang
- College of Animal Science, Yangtze University, Jingzhou 434025, China
| | - Wang Chen
- College of Animal Science, Yangtze University, Jingzhou 434025, China
| | - Shixiang Wu
- College of Animal Science, Yangtze University, Jingzhou 434025, China
| | - Hualin Yang
- College of Animal Science, Yangtze University, Jingzhou 434025, China; College of Life Science, Yangtze University, Jingzhou 434025, China.
| | - Yu Zhou
- College of Animal Science, Yangtze University, Jingzhou 434025, China.
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Guan Y, Ma J, Neng J, Yang B, Wang Y, Xing F. A Novel and Label-Free Chemiluminescence Detection of Zearalenone Based on a Truncated Aptamer Conjugated with a G-Quadruplex DNAzyme. BIOSENSORS 2023; 13:118. [PMID: 36671953 PMCID: PMC9856370 DOI: 10.3390/bios13010118] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/29/2022] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
Zearalenone (ZEN), one of the most frequently occurring mycotoxin contaminants in foods and feeds, poses considerable threat to human and animal health, owing to its acute and chronic toxicities. Thus, rapid and accurate detection of ZEN has attracted broad research interest. In this work, a novel and label-free chemiluminescence aptasensor based on a ZEN aptamer and a G-quadruplex DNAzyme was constructed. It was established on a competitive assay between ZEN and an auxiliary DNA for the aptamer, leading to activation of the G-quadruplex/hemin DNAzyme and subsequent signal amplification by chemiluminescence generation after substrate addition. To maximize the detection sensitivity, numerous key parameters including truncated aptamers were optimized with molecular docking analysis. Upon optimization, our aptasensor exhibited a perfect linear relationship (R2 = 0.9996) for ZEN detection in a concentration range of 1-100 ng/mL (3.14-314.10 nM) within 40 min, achieving a detection limit of 2.85 ng/mL (8.95 nM), which was a 6.7-fold improvement over that before optimization. Most importantly, the aptasensor obtained a satisfactory recovery rate of 92.84-137.27% and 84.90-124.24% for ZEN-spiked wheat and maize samples, respectively. Overall, our label-free chemiluminescence aptasensor displayed simplicity, sensitivity, specificity and practicality in real samples, indicating high application prospects in the food supply chain for rapid detection of ZEN.
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Affiliation(s)
- Yue Guan
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Junning Ma
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jing Neng
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Bolei Yang
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yan Wang
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Fuguo Xing
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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Wang A, Zhou Y, Chen Y, Zhou J, You X, Liu H, Liu Y, Ding P, Qi Y, Liang C, Zhu X, Zhang Y, Liu E, Zhang G. Electrochemical immunosensor for ultrasensitive detection of human papillomaviruse type 16 L1 protein based on Ag@AuNPs-GO/SPA. Anal Biochem 2023; 660:114953. [PMID: 36243135 DOI: 10.1016/j.ab.2022.114953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 09/30/2022] [Accepted: 10/07/2022] [Indexed: 12/14/2022]
Abstract
Human papillomaviruse type 16 (HPV16) is a high-risk serotype. As the main protective antigen protein, L1 protein is also the target protein for diagnosis. A simple label free electrochemical immunosensor (ECIS) was fabricated for ultrasensitive detection of HPV16 L1 protein in this work. Quasi-spherical Ag@Au core-shell nanoparticles on graphene oxide (Ag@AuNPs-GO) was developed as current response amplifier and characterized by UV-Vis Spectroscopy, Transmission Electron Microscopy and energy dispersive X-ray spectroscopy. Staphylococcal protein A was decorated on the modified electrode and utilized to immobilized the Fc portion of the monoclonal antibody specific for HPV16 L1 protein. Cyclic Voltammetry, Differential Pulse Voltammetry and Electrochemical Impedance Spectroscopy were used to verify the electrochemical performance and interfacial kinetic property. The increased concentration of HPV16 L1 protein led to slow electron transport and linearly decreased differential pulse voltammetry peak current with a detection limit of 0.002 ng mL-1 and a wide linear relationship in the range of 0.005-400 ng mL-1at a regression coefficient (R2) of 0.9948. Furthermore, this ECIS demonstrated acceptable accuracy with good reproducibility, stability and selectivity, suggesting a promising immunological strategy for HPV typing and early screening.
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Affiliation(s)
- Aiping Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China; College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yiting Zhou
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Yumei Chen
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Jingming Zhou
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Xiaojuan You
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Hongliang Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Yankai Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Peiyang Ding
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Yanhua Qi
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Chao Liang
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Xifang Zhu
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Ying Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Enping Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China
| | - Gaiping Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450000, China; Longhu Laboratory, Zhengzhou, 451100, China; School of Advanced Agricultural Sciences, Peking University, Beijing, 100871, China; College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China.
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