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Zeng D, Zhang Y, Yang J, Wang Y, Tian Y, Shen Y. Development of a monoclonal antibody-based time-resolved fluorescence immunochromatographic assay strip for sensitively detecting florfenicol residues in milk and eggs: Theoretical chemical insights into unexpected high specificity. Int J Biol Macromol 2024; 270:132381. [PMID: 38754664 DOI: 10.1016/j.ijbiomac.2024.132381] [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: 04/03/2024] [Revised: 05/06/2024] [Accepted: 05/12/2024] [Indexed: 05/18/2024]
Abstract
Florfenicol (FF), with its broad-spectrum antibacterial activity, is frequently abused in the livestock and poultry industries and has aroused the growing public concern. Owing to structural similarities and varying maximum residue limits between florfenicol and other chloramphenicol (CAP)-type antibiotics, including thiamphenicol (TAP) and chloramphenicol (CAP), there is an urgent need for a rapid and effective immunoassay method to distinguish them, in order to minimize the risk of false positives. Fortunately, a highly specific monoclonal antibody (mAb), named as SF11, has been developed using hybridoma technology. Molecular simulations have revealed that the mAb SF11's specificity in recognizing florfenicol stems from the π-π stacking interaction between florfenicol and the mAb SF11 binding pocket. Using this highly specific mAb, a sensitive time-resolved fluorescence immunochromatographic assay (TRFICA) strip for rapid florfenicol detection has been developed. Under optimal conditions, this TRFICA demonstrated good analytical performance for the detection of florfenicol in milk and eggs samples, with the half-maximal inhibition concentration (IC50) values of 1.89 and 2.86 ng mL-1, the limit of detection (LOD) of 0.23 and 0.48 ng mL-1, the cut-off values of 62.50 and 31.25 ng mL-1, and the testing time of approximately thirteen minutes. Spiked recoveries in the milk and eggs samples ranged from 104.7 % to 112.3 % and 95.3 % to 116.4 %, respectively, with no obvious cross-reactions with the other analogues observed. The TRFICA results correlated well with those of high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) for real samples, indicating that the developed TRFICA method was sensitive, accurate and adapted for the rapid determination of florfenicol in milk and egg samples.
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Affiliation(s)
- Daoping Zeng
- Wens Institute, Wens Foodstuff Groups Co., Ltd., Yunfu 527499, China
| | - Yongyi Zhang
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Jinyi Yang
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Yu Wang
- Guangzhou Institute for Food Inspection, Guangzhou 510410, China
| | - Yuanxin Tian
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, Guangdong-Hongkong-Macao Joint Laboratory for New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Yudong Shen
- College of Food Science, Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China.
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2
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Yu Q, Wu T, Tian B, Li J, Liu Y, Wu Z, Jin X, Wang C, Wang C, Gu B. Recent advances in SERS-based immunochromatographic assay for pathogenic microorganism diagnosis: A review. Anal Chim Acta 2024; 1286:341931. [PMID: 38049231 DOI: 10.1016/j.aca.2023.341931] [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: 07/27/2023] [Revised: 10/02/2023] [Accepted: 10/17/2023] [Indexed: 12/06/2023]
Abstract
Infectious diseases caused by bacteria, viruses, fungi, and other pathogenic microorganisms are among the most harmful public health problems in the world, causing tens of millions of deaths and incalculable economic losses every year. The establishment of rapid, simple, and highly sensitive diagnostic methods for pathogenic microorganisms is important for the prevention and control of infectious diseases, guidance of timely treatment, and the reduction of public safety risks. Lateral flow immunoassay (LFA) based on the colorimetric signal of colloidal gold is the most popular point-of-care testing technology at present, but it is limited by poor sensitivity and low throughput and hardly meets the needs of the highly sensitive screening of pathogenic microorganisms. In recent years, the combination of surface-enhanced Raman scattering (SERS) and LFA technology has developed into a novel analytical platform with high sensitivity and multiple detection capabilities and has shown great advantages in the detection of pathogenic microorganisms and infectious diseases. This review summarizes the working principle, design ideas, and application of the existing SERS-based LFA methods in pathogenic microorganism detection and further introduces the effect of new technologies such as Raman signal encoding, magnetic enrichment, novel membrane nanotags, and integrated Raman reading equipment on the performance of SERS-LFA. Finally, the main challenges and the future direction of development in this field of SERS-LFA are discussed.
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Affiliation(s)
- Qing Yu
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510000, China; College of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Ting Wu
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - Benshun Tian
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - Jiaxuan Li
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - Yun Liu
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - Zelan Wu
- Guangzhou Labway Clinical Laboratory Co., Ltd, Guangdong, 510000, China
| | - Xiong Jin
- Guangzhou Labway Clinical Laboratory Co., Ltd, Guangdong, 510000, China
| | - Chaoguang Wang
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, 410073, China.
| | - Chongwen Wang
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510000, China; College of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
| | - Bing Gu
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510000, China.
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3
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Zhang H, Tang Y, Wang W, Yu D, Yang L, Jiang X, Song W, Zhao B. A new semiconductor heterojunction SERS substrate for ultra-sensitive detection of antibiotic residues in egg. Food Chem 2024; 431:137163. [PMID: 37603998 DOI: 10.1016/j.foodchem.2023.137163] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/10/2023] [Accepted: 08/13/2023] [Indexed: 08/23/2023]
Abstract
Antibiotic residues in animal-derived food (egg) are threatening human health. Semiconductor heterojunction surface-enhanced Raman scattering (SERS) substrates can be used for ultra-sensitive detection of antibiotic residues in egg. Here, a TiO2/ZnO heterojunction was developed as a new SERS substrate based on an interface engineering strategy. Due to strong interfacial coupling and efficient carrier separating in heterostructure, utilization rate of photo-induced electrons in substrate was improved greatly, which realized the efficient charge transfer in substrate-molecule system, resulting in a prominent SERS enhancement. Taking the detection of enrofloxacin residue in egg as an example, the limit of detection (LOD) is only 13.1 μg/kg, which is far below the European Union standard, and lower than LODs of other conventional analytical methods and existing noble metal-based SERS methods. More importantly, benefiting from high sensitivity and selectivity of heterojunction and fingerprint characteristics of SERS, multiple antibiotic residues in egg can be identified simultaneously.
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Affiliation(s)
- Huizhu Zhang
- College of Chemistry and Chemical Engineering, Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar University, Qiqihar 161006, China; College of Pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Yimin Tang
- College of Chemistry and Chemical Engineering, Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar University, Qiqihar 161006, China
| | - Weie Wang
- College of Pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Dongxue Yu
- College of Pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Libin Yang
- College of Chemistry and Chemical Engineering, Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar University, Qiqihar 161006, China.
| | - Xin Jiang
- College of Chemistry and Chemical Engineering, Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar University, Qiqihar 161006, China.
| | - Wei Song
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China.
| | - Bing Zhao
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China.
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4
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Chen J, Lin H, Cao L, Sui J, Wang L, Fang X, Wang K. On-site detection of chloramphenicol in fish using SERS-based magnetic aptasensor coupled with a handheld Raman spectrometer. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123211. [PMID: 37531680 DOI: 10.1016/j.saa.2023.123211] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/19/2023] [Accepted: 07/26/2023] [Indexed: 08/04/2023]
Abstract
In recent years, the rapid detection of chloramphenicol (CAP) has become a market demand due to its high toxicity. In this study, for the first time, a portable surface-enhanced Raman scattering (SERS) aptasensor for the rapid and on-site detection of chloramphenicol (CAP) residues in fish was developed. Fe3O4@Au nanoflowers combined with sulfhydryl (SH)-CAP aptamer complementary DNA acted as capture probes. SH-CAP aptamer modified Au@Ag nanoparticles (Au@Ag NPs) embedded with 4-mercaptobenzoic acid (4-MBA) were served as reporter probes. The strongest Raman intensity was produced due to the coupling of Fe3O4@Au nanoflowers (Fe3O4@Au NFs) and Au@Ag NPs. For CAP detection, a wide linear range from 0.001 to 1000 μg/L, with an R2 of 0.9805, was obtained. The limit of detection was determined to be 0.87 ng/L. The SERS aptasensor showed excellent performance for analytical applications for real fish samples. Compared with the conventional HPLC method, the developed SERS aptasensor coupled with a handheld Raman spectrometer had flexible application and avoided the limitations of complex operating conditions. It should be a promising portable analytical tool for analysis of drug residues in the field.
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Affiliation(s)
- Junlin Chen
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China
| | - Hong Lin
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China
| | - Limin Cao
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China
| | - Jianxin Sui
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China
| | - Lei Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China
| | - Xiu Fang
- Fujian Provincial Key Laboratory of Breeding Lateolabrax Japonicus, Ningde, Fujian 355299, China
| | - Kaiqiang Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China.
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Li J, Qu L, Li H, Zhao L, Chen T, Liu J, Gao Y, Pan H. An electrochemical aptasensor for the detection of chloramphenicol based on ultra-small Au-inserted hollow PCN-222 MOF. Mikrochim Acta 2023; 190:366. [PMID: 37615746 DOI: 10.1007/s00604-023-05949-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 08/06/2023] [Indexed: 08/25/2023]
Abstract
The excessive utilization of antibiotics has led to significant water contamination and posed severe threats to human well-being. Consequently, the pressing imperative to identify antibiotics in the environment arises. In this study, we have successfully synthesized a hollow PCN-222 MOF distinguished by its substantial surface area and abundant functional groups, particularly the porphyrin cores. To augment the electrical conductivity of the hollow PCN-222 (HPCN-222), gold (Au) particles were incorporated within the porphyrin core using a fundamental hydrothermal method. This modification facilitated the effective immobilization of aptamer strands through π-π stacking and electrostatic interactions. As a result, the Au@HPCN-222 composite demonstrated exceptional efficacy as a substrate for immobilizing the aptamer (Apt) onto the GCE surface. By employing differential pulse voltammetry (DPV) we successfully achieved the detection of chloramphenicol (CAP) with a remarkably low limit of detection of 0.0138 ng mL-1 and the peak DPV currents at 0.18 V (vs. Ag/AgCl) were used for calibration. Furthermore, this aptasensor exhibited high selectivity and reproducibility.
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Affiliation(s)
- Jiang Li
- School of Materials Science and Engineering, Chang' an University, Xi'an, 710062, Shaanxi, China.
| | - Lingli Qu
- Shanghat University of Medicine Health Sciences Affiliated Zhoupu Hospital, Shanghai, 201300, China
- Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Huitong Li
- School of Materials Science and Engineering, Chang' an University, Xi'an, 710062, Shaanxi, China
| | - Lu Zhao
- School of Materials Science and Engineering, Chang' an University, Xi'an, 710062, Shaanxi, China
| | - Tongdan Chen
- School of Materials Science and Engineering, Chang' an University, Xi'an, 710062, Shaanxi, China
| | - Jiaying Liu
- School of Materials Science and Engineering, Chang' an University, Xi'an, 710062, Shaanxi, China
| | - Yuting Gao
- School of Materials Science and Engineering, Chang' an University, Xi'an, 710062, Shaanxi, China
| | - Hongzhi Pan
- Shanghat University of Medicine Health Sciences Affiliated Zhoupu Hospital, Shanghai, 201300, China.
- Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China.
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Lan H, Zou Y, Huang Z, Wang J, Gou L, Liao X, Pu X, Fang Y, Li D, Wu J, Yin G. Rapid detection of two markers of acute aortic dissection based on a lateral flow assay of hollow CdTe/CdS nanospheres. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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7
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Awiaz G, Lin J, Wu A. Recent advances of Au@Ag core-shell SERS-based biosensors. EXPLORATION (BEIJING, CHINA) 2023; 3:20220072. [PMID: 37323623 PMCID: PMC10190953 DOI: 10.1002/exp.20220072] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 05/18/2022] [Indexed: 06/17/2023]
Abstract
The methodological advancements in surface-enhanced Raman scattering (SERS) technique with nanoscale materials based on noble metals, Au, Ag, and their bimetallic alloy Au-Ag, has enabled the highly efficient sensing of chemical and biological molecules at very low concentration values. By employing the innovative various type of Au, Ag nanoparticles and especially, high efficiency Au@Ag alloy nanomaterials as substrate in SERS based biosensors have revolutionized the detection of biological components including; proteins, antigens antibodies complex, circulating tumor cells, DNA, and RNA (miRNA), etc. This review is about SERS-based Au/Ag bimetallic biosensors and their Raman enhanced activity by focusing on different factors related to them. The emphasis of this research is to describe the recent developments in this field and conceptual advancements behind them. Furthermore, in this article we apex the understanding of impact by variation in basic features like effects of size, shape varying lengths, thickness of core-shell and their influence of large-scale magnitude and morphology. Moreover, the detailed information about recent biological applications based on these core-shell noble metals, importantly detection of receptor binding domain (RBD) protein of COVID-19 is provided.
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Affiliation(s)
- Gul Awiaz
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Sciences (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- University of Chinese Academy of SciencesBeijingChina
| | - Jie Lin
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Sciences (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhouChina
| | - Aiguo Wu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Sciences (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhouChina
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8
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Jia L, Hao J, Yang L, Wang J, Huang L, Liu K. A Pyridine Diketopyrrolopyrrole-Grafted Graphene Oxide Nanocomposite for the Sensitive Detection of Chloramphenicol by a Direct Electrochemical Method. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:392. [PMID: 36770354 PMCID: PMC9921031 DOI: 10.3390/nano13030392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/16/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
A novel direct electrochemical sensor, based on a pyridine diketopyrrolopyrrole/graphene oxide nanocomposite-modified glass carbon electrode (PDPP/GO/GCE), was developed herein for chloramphenicol (CAP) detection. In this research, PDPP was grafted onto GO by C-N bonds and π-π conjugation, which were synergistically confirmed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The morphology study shows that PDPP was uniformly dispersed on the GO in the form of particles. The constructed PDPP/GO/GCE showed the strongest response signal to CAP in the evaluation of electrocatalytic activity by cyclic voltammetry compared to that of GO-modified and unmodified GCE, revealing that the introduction of PDPP can effectively improve the electrocatalytic activity of sensors. Moreover, PDPP/GO/GCE had a noticeable current signal when the concentration of CAP was as low as 0.001 uM and had a wide line range (0.01-780 uM) with a low limit of detection (1.64 nM). The sensor properties of the as-obtained PDPP/GO/GCE involved anti-interference, reproducibility, and stability, which were also evaluated and revealed satisfactory results.
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Affiliation(s)
- Lingpu Jia
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Juan Hao
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Long Yang
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jun Wang
- School of Biological Food and Environment, Hefei University, Hefei 230601, China
| | - Lijuan Huang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Kunping Liu
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
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Geng L, Huang J, Zhai H, Shen Z, Han J, Yu Y, Fang H, Li F, Sun X, Guo Y. Molecularly imprinted electrochemical sensor based on multi-walled carbon nanotubes for specific recognition and determination of chloramphenicol in milk. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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10
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Feng H, Li J, Liu Y, Xu Z, Cui Y, Liu M, Liu X, He L, Jiang J, Qian D. Cubic MnSe2 nanoparticles dispersed on multi-walled carbon nanotubes: A robust electrochemical sensing platform for chloramphenicol. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Wang T, Liu M, Huang S, Yuan H, Zhao J. Detection of Ofloxacin and Norfloxacin in Duck Meat Using Surface-Enhanced Raman Spectroscopy (SERS) Coupled with Multivariate Analysis. ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2098313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Ting Wang
- Key Laboratory of Modern Agricultural Equipment in Jiangxi Province, Jiangxi Agricultural University, Nanchang, China
| | - Muhua Liu
- Key Laboratory of Modern Agricultural Equipment in Jiangxi Province, Jiangxi Agricultural University, Nanchang, China
| | - Shuanggen Huang
- Key Laboratory of Modern Agricultural Equipment in Jiangxi Province, Jiangxi Agricultural University, Nanchang, China
| | - Haichao Yuan
- Key Laboratory of Modern Agricultural Equipment in Jiangxi Province, Jiangxi Agricultural University, Nanchang, China
| | - Jinhui Zhao
- Key Laboratory of Modern Agricultural Equipment in Jiangxi Province, Jiangxi Agricultural University, Nanchang, China
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Yin L, You T, El-Seedi HR, El-Garawani IM, Guo Z, Zou X, Cai J. Rapid and sensitive detection of zearalenone in corn using SERS-based lateral flow immunosensor. Food Chem 2022; 396:133707. [PMID: 35853376 DOI: 10.1016/j.foodchem.2022.133707] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/12/2022] [Accepted: 07/12/2022] [Indexed: 11/29/2022]
Abstract
Zearalenone (ZEN) is a universal mycotoxin contaminant in corn and its products. A surface-enhanced Raman scattering (SERS) based test strip was proposed for the detection of ZEN, which had the advantages of simplicity, rapidity, and high sensitivity. Core-shell Au@AgNPs with embedded reporter molecules (4-MBA) were synthesized as SERS nanoprobe, which exhibited excellent SERS signals and high stability. The detection range of ZEN for corn samples was 10-1000 μg/kg with the limit of detection (LOD) of 3.6 μg/kg, which is far below the recommended tolerable level (60 μg/kg). More importantly, the SERS method was verified by HPLC in the application on corn samples contaminated with ZEN, and the coincidence rates were in the range of 86.06%-111.23%, suggesting a high accuracy of the SERS assay. Therefore, the SERS-based test strip with an analysis time of less than 15 min is a promising tool for accurate and rapid detection of ZEN-field contamination.
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Affiliation(s)
- Limei Yin
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Tianyan You
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Hesham R El-Seedi
- Pharmacognosy Group, Department of Pharmaceutical Biosciences, BMC, Uppsala University, Box 591, SE-751 24 Uppsala, Sweden
| | - Islam M El-Garawani
- Department of Zoology, Faculty of Science, Menoufia University, Menoufia 32511, Egypt
| | - Zhiming Guo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing (Jiangsu University), Jiangsu Education Department, Zhenjiang 212013, China
| | - Xiaobo Zou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing (Jiangsu University), Jiangsu Education Department, Zhenjiang 212013, China
| | - Jianrong Cai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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