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Li Q, Dou L, Zhang Y, Luo L, Yang H, Wen K, Yu X, Shen J, Wang Z. A comprehensive review on the detection of Staphylococcus aureus enterotoxins in food samples. Compr Rev Food Sci Food Saf 2024; 23:e13264. [PMID: 38284582 DOI: 10.1111/1541-4337.13264] [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: 07/31/2023] [Revised: 10/12/2023] [Accepted: 10/15/2023] [Indexed: 01/30/2024]
Abstract
Staphylococcal enterotoxins (SEs), the major virulence factors of Staphylococcus aureus, cause a wide range of food poisoning and seriously threaten human health by infiltrating the food supply chain at different phases of manufacture, processes, distribution, and market. The significant prevalence of Staphylococcus aureus calls for efficient, fast, and sensitive methods for the early detection of SEs. Here, we provide a comprehensive review of the hazards of SEs in contaminated food, the characteristic and worldwide regulations of SEs, and various detection methods for SEs with extensive comparison and discussion of benefits and drawbacks, mainly including biological detection, genetic detection, and mass spectrometry detection and biosensors. We highlight the biosensors for the screening purpose of SEs, which are classified according to different recognition elements such as antibodies, aptamers, molecularly imprinted polymers, T-cell receptors, and transducers such as optical, electrochemical, and piezoelectric biosensors. We analyzed challenges of biosensors for the monitoring of SEs and conclude the trends for the development of novel biosensors should pay attention to improve samples pretreatment efficiency, employ innovative nanomaterials, and develop portable instruments. This review provides new information and insightful commentary, important to the development and innovation of further detection methods for SEs in food samples.
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Affiliation(s)
- Qing Li
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Leina Dou
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Yingjie Zhang
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Liang Luo
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Huijuan Yang
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Kai Wen
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Xuezhi Yu
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Jianzhong Shen
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Zhanhui Wang
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
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2
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Aggregation-Induced Red Emission Nanoparticle-Based Lateral Flow Immunoassay for Highly Sensitive Detection of Staphylococcal Enterotoxin A. Toxins (Basel) 2023; 15:toxins15020113. [PMID: 36828428 PMCID: PMC9964500 DOI: 10.3390/toxins15020113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 01/31/2023] Open
Abstract
Staphylococcal enterotoxin A (SEA) has presented enormous difficulties in dairy food safety and the sensitive detection of SEA provides opportunities for effective food safety controls and staphylococcal food poisoning tracebacks. Herein, a novel aggregation-induced emission (AIE)-based sandwich lateral flow immunoassay (LFIA) was introduced to detect SEA by using red-emissive AIE nanoparticles (AIENPs) as the fluorescent nanoprobe. The nanoprobe was constructed by directly immobilising antibodies on boronate-tagged AIENPs (PBA-AIENPs) via a boronate affinity reaction, which exhibited a high SEA-specific affinity and remarkable fluorescent performance. Under optimal conditions, the ultrasensitive detection of SEA in pasteurised milk was achieved within 20 min with a limit of detection of 0.04 ng mL-1. The average recoveries of the PBA-AIENP-LFIA ranged from 91.3% to 117.6% and the coefficient of variation was below 15%. It was also demonstrated that the PBA-AIENP-LFIA had an excellent selectivity against other SE serotypes. Taking advantage of the excellent sensitivity of this approach, real chicken and salad samples were further analysed, with a high versatility and accuracy. The proposed PBA-AIENP-LFIA platform shows promise as a potent tool for the identification of additional compounds in food samples as well as an ideal test method for on-site detections.
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Janik-Karpinska E, Ceremuga M, Niemcewicz M, Podogrocki M, Stela M, Cichon N, Bijak M. Immunosensors-The Future of Pathogen Real-Time Detection. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22249757. [PMID: 36560126 PMCID: PMC9785510 DOI: 10.3390/s22249757] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/07/2022] [Accepted: 12/10/2022] [Indexed: 05/26/2023]
Abstract
Pathogens and their toxins can cause various diseases of different severity. Some of them may be fatal, and therefore early diagnosis and suitable treatment is essential. There are numerous available methods used for their rapid screening. Conventional laboratory-based techniques such as culturing, enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR) are dominant. However, culturing still remains the "gold standard" for their identification. These methods have many advantages, including high sensitivity and selectivity, but also numerous limitations, such as long experiment-time, costly instrumentation, and the need for well-qualified personnel to operate the equipment. All these existing limitations are the reasons for the continuous search for a new solutions in the field of bacteria identification. For years, research has been focusing on the use of immunosensors in various types of toxin- and pathogen-detection. Compared to the conventional methods, immunosensors do not require well-trained personnel. What is more, immunosensors are quick, highly selective and sensitive, and possess the potential to significantly improve the pathogen and toxin diagnostic-processes. There is a very important potential use for them in various transport systems, where the risk of contamination by bioagents is very high. In this paper, the advances in the field of immunosensor usage in pathogenic microorganism- and toxin-detection, are described.
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Affiliation(s)
- Edyta Janik-Karpinska
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Michal Ceremuga
- Military Institute of Armored and Automotive Technology, Okuniewska 1, 05-070 Sulejowek, Poland
| | - Marcin Niemcewicz
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Marcin Podogrocki
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Maksymilian Stela
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Natalia Cichon
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Michal Bijak
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
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4
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Li H, Long M, Su H, Tan L, Shi X, Du Y, Luo Y, Deng H. Carboxymethyl chitosan assembled piezoelectric biosensor for rapid and label-free quantification of immunoglobulin Y. Carbohydr Polym 2022; 290:119482. [DOI: 10.1016/j.carbpol.2022.119482] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/10/2022] [Indexed: 11/02/2022]
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5
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Liang S, Sutham P, Wu K, Mallikarjunan K, Wang JP. Giant Magnetoresistance Biosensors for Food Safety Applications. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22155663. [PMID: 35957220 PMCID: PMC9371012 DOI: 10.3390/s22155663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 05/25/2023]
Abstract
Nowadays, the increasing number of foodborne disease outbreaks around the globe has aroused the wide attention of the food industry and regulators. During food production, processing, storage, and transportation, microorganisms may grow and secrete toxins as well as other harmful substances. These kinds of food contamination from microbiological and chemical sources can seriously endanger human health. The traditional detection methods such as cell culture and colony counting cannot meet the requirements of rapid detection due to some intrinsic shortcomings, such as being time-consuming, laborious, and requiring expensive instrumentation or a central laboratory. In the past decade, efforts have been made to develop rapid, sensitive, and easy-to-use detection platforms for on-site food safety regulation. Herein, we review one type of promising biosensing platform that may revolutionize the current food surveillance approaches, the giant magnetoresistance (GMR) biosensors. Benefiting from the advances of nanotechnology, hundreds to thousands of GMR biosensors can be integrated into a fingernail-sized area, allowing the higher throughput screening of food samples at a lower cost. In addition, combined with on-chip microfluidic channels and filtration function, this type of GMR biosensing system can be fully automatic, and less operator training is required. Furthermore, the compact-sized GMR biosensor platforms could be further extended to related food contamination and the field screening of other pathogen targets.
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Affiliation(s)
- Shuang Liang
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA;
| | - Phanatchakorn Sutham
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN 55108, USA;
| | - Kai Wu
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79409, USA
| | - Kumar Mallikarjunan
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN 55108, USA;
| | - Jian-Ping Wang
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA;
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, USA
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6
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Mazouzi Y, Sallem F, Farina F, Loiseau A, Tartaglia NR, Fontaine M, Parikh A, Salmain M, Neri C, Boujday S. Biosensing Extracellular Vesicle Subpopulations in Neurodegenerative Disease Conditions. ACS Sens 2022; 7:1657-1665. [PMID: 35446554 DOI: 10.1021/acssensors.1c02658] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Extracellular vesicles (EVs) are secreted nanoparticles that are involved in intercellular communication and that modulate a wide range of biological processes in normal and disease conditions. However, EVs are highly heterogeneous in terms of origin in the cell, size, and density. As a result, complex protocols are required to identify and characterize specific EV subpopulations, limiting biomedical applications, notably in diagnostics. Here, we show that combining quartz crystal microbalance with dissipation (QCM-D) and nanoplasmonic sensing (NPS) provides a facile method to track the viscoelastic properties of small EVs. We applied this multisensing strategy to analyze small EVs isolated by differential ultracentrifugation from knock-in mouse striatal cells expressing either a mutated allele or wild-type allele of huntingtin (Htt), the Huntington's disease gene. Our results validate the sensing strategy coupling QCM-D and NPS and suggest that the mass and viscoelastic dissipation of EVs can serve as potent biomarkers for sensing the intercellular changes associated with the neurodegenerative condition.
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Affiliation(s)
- Yacine Mazouzi
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), 75005 Paris, France
| | - Fadoua Sallem
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), 75005 Paris, France
| | - Francesca Farina
- CNRS UMR 8256, ERL INSERM U1164, Sorbonne Université, 75005 Paris, France
| | - Alexis Loiseau
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), 75005 Paris, France
| | | | - Morgane Fontaine
- CNRS UMR 8256, ERL INSERM U1164, Sorbonne Université, 75005 Paris, France
| | - Atul Parikh
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), 75005 Paris, France
- Biomedical Engineering, University of California Davis, Davis, California 95616, United States
| | - Michèle Salmain
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), 75005 Paris, France
| | - Christian Neri
- CNRS UMR 8256, ERL INSERM U1164, Sorbonne Université, 75005 Paris, France
| | - Souhir Boujday
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), 75005 Paris, France
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7
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Golafrouz H, Ahari H, Anvar SA, Shahbazzadeh D. Detection of Staphylococcus aureus Enterotoxin A (SEA) Using Dot-ELISA in Milk Samples. JOURNAL OF MEDICAL MICROBIOLOGY AND INFECTIOUS DISEASES 2020. [DOI: 10.29252/jommid.8.4.132] [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] Open
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Abstract
In recent years, advances in immunosensor device fabrication have significantly expanded the use of this technology in a broad range of applications including clinical diagnosis, food analysis, quality control, environmental studies and industrial monitoring. The most important aspect in fabrication is to obtain a design that provides a low detection limit. The utilization of nanomaterials as a label, catalyst and biosensing transducer is, perhaps, the most popular approach in ultrasensitive devices. This chapter reviews recent advances in immunosensor fabrication and summarizes the most recent studies. Strategies employed to significantly improve sensitivity and specificity of immunosensor technology and the advantages and limitations thereof are explored.
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Affiliation(s)
- Muhammet Aydin
- Tekirdağ Namık Kemal University, Scientific and Technological Research Center, Tekirdağ, Turkey.
| | - Elif Burcu Aydin
- Tekirdağ Namık Kemal University, Scientific and Technological Research Center, Tekirdağ, Turkey
| | - Mustafa Kemal Sezgintürk
- Bioengineering Department, Faculty of Engineering, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
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9
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An alternative strategy to detect bacterial contamination in milk and water: a newly designed electrochemical biosensor. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03491-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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10
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Rocha GS, Silva MKL, Cesarino I. Reduced Graphene Oxide-Based Impedimetric Immunosensor for Detection of Enterotoxin A in Milk Samples. MATERIALS 2020; 13:ma13071751. [PMID: 32290030 PMCID: PMC7178653 DOI: 10.3390/ma13071751] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 03/27/2020] [Accepted: 04/07/2020] [Indexed: 02/07/2023]
Abstract
A simple, cheap, and less aggressive immobilization procedure for biomolecules using reduced graphene oxide (rGO) was employed to prepare an impedimetric immunosensor for detection of staphylococcal enterotoxin A (SEA) from Staphylococcus aureus in milk samples. The scanning electron microscopy, cyclic voltammetry, and electrochemical impedance spectroscopy (EIS) were used to monitor the single steps of the electrode assembly process. The glassy carbon (GC)/rGO platform detected the antigen-antibody binding procedures of SEA with concentrations of 0.5 to 3.5 mg L−1 via impedance changes in a low frequency range. The impedimetric immunosensor was successfully applied for the determination of SEA in milk samples.
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11
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Yun Y, Pan M, Wang L, Li S, Wang Y, Gu Y, Yang J, Wang S. Fabrication and evaluation of a label-free piezoelectric immunosensor for sensitive and selective detection of amantadine in foods of animal origin. Anal Bioanal Chem 2019; 411:5745-5753. [PMID: 31243479 DOI: 10.1007/s00216-019-01954-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/14/2019] [Accepted: 05/28/2019] [Indexed: 11/24/2022]
Abstract
A label-free piezoelectric immunosensor was fabricated and applied to the detection of the antiviral drug amantadine (AM) in foods of animal origin. Experimental parameters associated with the fabrication and measurement process were optimized and are discussed here in detail. The proposed piezoelectric sensor is based on an immunosuppression format and uses a portable quartz crystal microbalance (QCM) chip. It was found to provide a good response to AM, with a sensitivity and limit of detection (LOD) of 33.9 and 1.3 ng mL-1, respectively, as well as low cross-reactivity (CR, < 0.01%) with AM analogues. The immunosensor was further applied to quantify AM at three levels in spiked samples of typical foods of animal origin, and yielded recoveries of 83.2-93.4% and standard deviations (SDs, n = 3) of 2.4-4.5%, which are comparable to the results (recoveries: 82.6-94.3%; SDs: 1.7-4.2%) obtained using a high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method. Furthermore, the piezoelectric immunosensing chip can be regenerated multiple (at least 20) times with low signal attenuation (about 10%). A sample analysis can be completed within 50 min (sample pretreatment: about 40 min, QCM measurement: 5 min). These results demonstrate that the developed piezoelectric immunosensor provides a sensitive, accurate, portable, and low-cost analytical strategy for the antiviral drug AM in foods of animal origin, and this label-free detection method could also be applied to analyze other targets in the field of food safety. Graphical abstract.
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Affiliation(s)
- Yaguang Yun
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China.,State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Safety Control Technology in Food Processing, Tianjin, 300457, China.,Tianjin University of Science and Technology, Tianjin, 300457, China.,Baotou Light Industry Vocational Technical College, Baotou, 014035, China
| | - Mingfei Pan
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China. .,State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Safety Control Technology in Food Processing, Tianjin, 300457, China. .,Tianjin University of Science and Technology, Tianjin, 300457, China.
| | - Lulu Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China.,State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Safety Control Technology in Food Processing, Tianjin, 300457, China.,Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Shijie Li
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China.,State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Safety Control Technology in Food Processing, Tianjin, 300457, China.,Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Yanan Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China.,State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Safety Control Technology in Food Processing, Tianjin, 300457, China.,Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Ying Gu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China.,State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Safety Control Technology in Food Processing, Tianjin, 300457, China.,Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Jingying Yang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China.,State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Safety Control Technology in Food Processing, Tianjin, 300457, China.,Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Shuo Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China. .,State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Safety Control Technology in Food Processing, Tianjin, 300457, China. .,Tianjin University of Science and Technology, Tianjin, 300457, China. .,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, 100048, China.
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Mousavi Nodoushan S, Nasirizadeh N, Amani J, Halabian R, Imani Fooladi AA. An electrochemical aptasensor for staphylococcal enterotoxin B detection based on reduced graphene oxide and gold nano-urchins. Biosens Bioelectron 2018; 127:221-228. [PMID: 30622036 DOI: 10.1016/j.bios.2018.12.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 12/09/2018] [Accepted: 12/10/2018] [Indexed: 01/06/2023]
Abstract
Detection of staphylococcal enterotoxin B (SEB) as a bacterial toxin causing severe food poisoning is of great importance. Herein, we developed an electrochemical aptasensor for SEB detection using a screen printed electrode modified with reduced graphene oxide (rGO) and gold nano-urchins (AuNUs). Afterward, the single-stranded DNA probe was attached to the surface of AuNUs on the modified electrode and then the specific aptamer was attached to the probe. In the presence of SEB molecules, the aptamer detached from the electrode surface and after applying the electrochemical signal generator, hematoxylin and the peak current of differential pulse voltammetry (DPV) were recorded. Due to the intercalation mechanism of hematoxylin-DNA interaction, the detachment of aptamer from electrode surface decreased the DPV peak current and the calibration graph (peak current vs SEB concentration) can be used for quantification of SEB. The cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) and also field emission scanning electron microscope imaging were used for electrode characterization. Selectivity experiments of the developed aptasensor showed a very distinct difference between SEB and other nonspecific molecules. A wide linear range from 5.0 to 500.0 fM was achieved and the detection limit was calculated as 0.21 fM. The performance of the aptasensor was checked in spiked food samples as simulated real samples and the results showed no significant difference compared to the synthetic samples. Results of selectivity and repeatability of the aptasensor were satisfactory. In addition, better recovery percentages and also lower standard deviation of aptasensor compared to a commercial ELISA kit of SEB detection proved the superior performance of the proposed aptasensor.
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Affiliation(s)
- Somayeh Mousavi Nodoushan
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran 14359-44711, Iran
| | - Navid Nasirizadeh
- Department of Textile and Polymer Engineering, Yazd Branch, Islamic Azad University, Yazd 8916871967, Iran.
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran 14359-44711, Iran
| | - Raheleh Halabian
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran 14359-44711, Iran
| | - Abbas Ali Imani Fooladi
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran 14359-44711, Iran.
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13
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Walper SA, Lasarte Aragonés G, Sapsford KE, Brown CW, Rowland CE, Breger JC, Medintz IL. Detecting Biothreat Agents: From Current Diagnostics to Developing Sensor Technologies. ACS Sens 2018; 3:1894-2024. [PMID: 30080029 DOI: 10.1021/acssensors.8b00420] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Although a fundamental understanding of the pathogenicity of most biothreat agents has been elucidated and available treatments have increased substantially over the past decades, they still represent a significant public health threat in this age of (bio)terrorism, indiscriminate warfare, pollution, climate change, unchecked population growth, and globalization. The key step to almost all prevention, protection, prophylaxis, post-exposure treatment, and mitigation of any bioagent is early detection. Here, we review available methods for detecting bioagents including pathogenic bacteria and viruses along with their toxins. An introduction placing this subject in the historical context of previous naturally occurring outbreaks and efforts to weaponize selected agents is first provided along with definitions and relevant considerations. An overview of the detection technologies that find use in this endeavor along with how they provide data or transduce signal within a sensing configuration follows. Current "gold" standards for biothreat detection/diagnostics along with a listing of relevant FDA approved in vitro diagnostic devices is then discussed to provide an overview of the current state of the art. Given the 2014 outbreak of Ebola virus in Western Africa and the recent 2016 spread of Zika virus in the Americas, discussion of what constitutes a public health emergency and how new in vitro diagnostic devices are authorized for emergency use in the U.S. are also included. The majority of the Review is then subdivided around the sensing of bacterial, viral, and toxin biothreats with each including an overview of the major agents in that class, a detailed cross-section of different sensing methods in development based on assay format or analytical technique, and some discussion of related microfluidic lab-on-a-chip/point-of-care devices. Finally, an outlook is given on how this field will develop from the perspective of the biosensing technology itself and the new emerging threats they may face.
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Affiliation(s)
- Scott A. Walper
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - Guillermo Lasarte Aragonés
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- College of Science, George Mason University Fairfax, Virginia 22030, United States
| | - Kim E. Sapsford
- OMPT/CDRH/OIR/DMD Bacterial Respiratory and Medical Countermeasures Branch, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
| | - Carl W. Brown
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- College of Science, George Mason University Fairfax, Virginia 22030, United States
| | - Clare E. Rowland
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- National Research Council, Washington, D.C. 20036, United States
| | - Joyce C. Breger
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
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Singh M, Agrawal RK, Singh BR, Mendiratta SK, Agarwal RK, Singh MK, Kumar D. Development and Evaluation of Simple Dot-Blot Assays for Rapid Detection of Staphylococcal Enterotoxin-A in Food. Indian J Microbiol 2017; 57:507-511. [PMID: 29151654 DOI: 10.1007/s12088-017-0671-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 09/02/2017] [Indexed: 01/06/2023] Open
Abstract
The present study was aimed to develop and evaluate dot-blot assays for rapid detection of staphylococcal enterotoxin-A (SEA) in food. Dot blots were developed in two formats, indirect and sandwich utilizing mouse monoclonal anti-SEA and rabbit polyclonal anti-SEA antibodies. In indirect dot-blot format, recombinant SEA was directly coated on NCM dot-blot strip and detection was carried out by anti-SEA antibodies. In sandwich dot-blot format, SEA was trapped between anti-SEA capture and detection antibodies. Both the dot-blot assays exhibited a sensitivity of ~48 ng ml-1 when tested in different food matrices. The developed assays were highly specific as no cross-reactivity was detected with other classical staphylococcal enterotoxins, toxigenic bacteria and foodborne pathogens. Sensitivity and specificity of developed indirect and sandwich dot-blot assays with respect to PCR was found to be 100 and 99%, respectively. The results shows that the developed dot-blot assays can be used as rapid preliminary screening tests for detection of SEA in food or determining the toxigenic potential of staphylococci, especially in resource-limited settings.
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Affiliation(s)
- Mamta Singh
- Division of Bacteriology and Mycology, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - Ravi Kant Agrawal
- Food Microbiology Laboratory, Division of Livestock Products Technology, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - Bhoj Raj Singh
- Division of Epidemiology, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - Sanjod Kumar Mendiratta
- Division of Livestock Products Technology, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - Rajesh Kumar Agarwal
- Division of Bacteriology and Mycology, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - Mithilesh Kumar Singh
- Immunology Section, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - Deepak Kumar
- Division of Veterinary Biotechnology, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
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15
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Ben Haddada M, Hu D, Salmain M, Zhang L, Peng C, Wang Y, Liedberg B, Boujday S. Gold nanoparticle-based localized surface plasmon immunosensor for staphylococcal enterotoxin A (SEA) detection. Anal Bioanal Chem 2017; 409:6227-6234. [DOI: 10.1007/s00216-017-0563-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 07/07/2017] [Accepted: 08/02/2017] [Indexed: 01/28/2023]
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16
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Zhao Y, Zhu A, Tang J, Tang C, Chen J. Identification and measurement of staphylococcal enterotoxin M from Staphylococcus aureus isolate associated with staphylococcal food poisoning. Lett Appl Microbiol 2017; 65:27-34. [PMID: 28444877 DOI: 10.1111/lam.12751] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 04/20/2017] [Accepted: 04/20/2017] [Indexed: 11/29/2022]
Abstract
Staphylococcus aureus produces a wide variety of staphylococcal enterotoxins (SEs, SEA to SEX), which are responsible for staphylococcal food poisoning. This study is aimed to establish a system to detect staphylococcal enterotoxin M (SEM) protein in food matrixes. In the present study, sem gene was characterized in a S. aureus isolate H4 associated with food poisoning. The amino acid sequence of the deduced SEM protein was same as that of previously identified SEM from S. aureus 04-02981. Subsequently, mature SEM protein was expressed in Escherichia coli BL21 (DE3) cells and purified with a Ni-NTA spin column. The polyclonal and monoclonal antibody against it were prepared. Using these antibodies, a highly sensitive, specific sandwich enzyme-linked immunosorbent assay (ELISA) system was developed capable of detecting SEM in milk, meat and rice. Cross-reactivity with SEB, SEI and SEK in this method was insignificant. Quantification of SEM secretion in vitro using this novel capture ELISA revealed that SEM was mainly secreted during the transition from the exponential to the stationary phase. Furthermore, sem gene and SEM protein production were screened by PCR and the developed ELISA system. The results indicated that there were two SEM+ strains of 19 S. aureus isolates originating in cold dishes and humans suffering from food poisoning. The investigations make it possible to assess SEM in food hygiene supervision in near future. SIGNIFICANCE AND IMPACT OF THE STUDY Staphylococcal enterotoxins (SE) are the main causative agents of staphylococcal food poisoning. Unlike classical SEs (SEA to SEE), the relationship between newly identified SEs (SEG to SEX) and staphylococcal food poisoning has not been clearly elucidated. Recently, mild emetic potential of staphylococcal enterotoxin M (SEM) has been demonstrated, which indicated that SEM might be associated with food poisoning. However, there is currently no commercial enzyme-linked immunosorbent assay (ELISA) kit available for immunological detection of it. Therefore, we developed a highly sensitive, specific sandwich ELISA system and assayed SEM in food matrixes. This assay facilitates the study of SEM expression in vitro and in vivo. In addition, the investigations would be helpful in addressing the relative incidence of SEM+ strains in near future.
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Affiliation(s)
- Y Zhao
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - A Zhu
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - J Tang
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - C Tang
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - J Chen
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
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17
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Theansun W, Sripratumporn J, Promptmas C. Determination of Albumin in Urine by a Quartz Crystal Microbalance Label-Free Assay. ANAL LETT 2017. [DOI: 10.1080/00032719.2016.1262393] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Watcharinthon Theansun
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
- Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
| | - Jittawat Sripratumporn
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
| | - Chamras Promptmas
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
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18
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Wu S, Duan N, Gu H, Hao L, Ye H, Gong W, Wang Z. A Review of the Methods for Detection of Staphylococcus aureus Enterotoxins. Toxins (Basel) 2016; 8:E176. [PMID: 27348003 PMCID: PMC4963824 DOI: 10.3390/toxins8070176] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/30/2016] [Indexed: 01/08/2023] Open
Abstract
Food safety has attracted extensive attention around the world, and food-borne diseases have become one of the major threats to health. Staphylococcus aureus is a major food-borne pathogen worldwide and a frequent contaminant of foodstuffs. Staphylococcal enterotoxins (SEs) produced by some S. aureus strains will lead to staphylococcal food poisoning (SFP) outbreaks. The most common symptoms caused by ingestion of SEs within food are nausea, vomiting, diarrhea and cramps. Children will suffer SFP by ingesting as little as 100 ng of SEs, and only a few micrograms of SEs are enough to cause SPF in vulnerable populations. Therefore, it is a great challenge and of urgent need to detect and identify SEs rapidly and accurately for governmental and non-governmental agencies, including the military, public health departments, and health care facilities. Herein, an overview of SE detection has been provided through a comprehensive literature survey.
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Affiliation(s)
- Shijia Wu
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Nuo Duan
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Huajie Gu
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Liling Hao
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Hua Ye
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Wenhui Gong
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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Bragazzi NL, Amicizia D, Panatto D, Tramalloni D, Valle I, Gasparini R. Quartz-Crystal Microbalance (QCM) for Public Health: An Overview of Its Applications. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 101:149-211. [PMID: 26572979 DOI: 10.1016/bs.apcsb.2015.08.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nanobiotechnologies, from the convergence of nanotechnology and molecular biology and postgenomics medicine, play a major role in the field of public health. This overview summarizes the potentiality of piezoelectric sensors, and in particular, of quartz-crystal microbalance (QCM), a physical nanogram-sensitive device. QCM enables the rapid, real time, on-site detection of pathogens with an enormous burden in public health, such as influenza and other respiratory viruses, hepatitis B virus (HBV), and drug-resistant bacteria, among others. Further, it allows to detect food allergens, food-borne pathogens, such as Escherichia coli and Salmonella typhimurium, and food chemical contaminants, as well as water-borne microorganisms and environmental contaminants. Moreover, QCM holds promises in early cancer detection and screening of new antiblastic drugs. Applications for monitoring biohazards, for assuring homeland security, and preventing bioterrorism are also discussed.
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Affiliation(s)
- Nicola Luigi Bragazzi
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Daniela Amicizia
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Donatella Panatto
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Daniela Tramalloni
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Ivana Valle
- SSD "Popolazione a rischio," Health Prevention Department, Local Health Unit ASL3 Genovese, Genoa, Italy
| | - Roberto Gasparini
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy.
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20
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Bedford E, Humblot V, Méthivier C, Pradier CM, Gu F, Tielens F, Boujday S. An Experimental and Theoretical Approach to Investigate the Effect of Chain Length on Aminothiol Adsorption and Assembly on Gold. Chemistry 2015; 21:14555-61. [DOI: 10.1002/chem.201500653] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 06/12/2015] [Indexed: 11/10/2022]
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21
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Huang Y, Zhang H, Chen X, Wang X, Duan N, Wu S, Xu B, Wang Z. A multicolor time-resolved fluorescence aptasensor for the simultaneous detection of multiplex Staphylococcus aureus enterotoxins in the milk. Biosens Bioelectron 2015; 74:170-6. [PMID: 26141103 DOI: 10.1016/j.bios.2015.06.046] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 06/15/2015] [Accepted: 06/19/2015] [Indexed: 10/23/2022]
Abstract
Food safety is one of the most important public health issues worldwide. Foodborne illnesses caused by Staphylococcus aureus enterotoxins (SEs) commonly occur, affecting both developing and developed countries. In this study, multicolor lanthanide-doped time-resolved fluorescence nanoparticles labeled with aptamers were used as bioprobes, and graphene oxide (GO) was employed as a resonance energy acceptor. Based on the "turn down" strategy, the simultaneous detection of multiplex SEs was realized in a homogeneous solution. Under the optimal conditions, the developed method exhibited high sensitivity and selectivity to three serological types of enterotoxins, including type A, B, C1, with limits of detection below 1 ng mL(-1). The application of this bioassay in milk analysis with no sample dilution was also investigated, and the results of recovery rates covered from 92.76% to 114.58%, revealing that the developed method was accurate. Therefore, this detection aptasnesor can be a good candidate for multiplex analysis and screening with simple and effective operations.
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Affiliation(s)
- Yukun Huang
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Hui Zhang
- China Rural Technology Development Center, Beijing 100045, China
| | - Xiujuan Chen
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiaole Wang
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Nuo Duan
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Shijia Wu
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Baocai Xu
- State Key Lab Meat Processing & Quality Control, Yurun Group, Nanjing 210041, China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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22
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Karaseva N, Ermolaeva T. A regenerable piezoelectric immunosensor on the basis of electropolymerized polypyrrole for highly selective detection of Staphylococcal Enterotoxin A in foodstuffs. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1456-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Use of biotin-labeled IgY overcomes protein A interference in immunoassays involving Staphylococcus aureus antigens. ANN MICROBIOL 2015. [DOI: 10.1007/s13213-014-1029-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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24
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In-situ monitoring of transition metal complex adsorption on oxide surfaces during the first stages of supported metal catalyst preparation. Catal Today 2014. [DOI: 10.1016/j.cattod.2014.03.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Chen W, Hu L, Liu A, Li J, Chen F, Wang X. Expression and characterization of single-chain variable fragment antibody against staphylococcal enterotoxin A in Escherichia coli. Can J Microbiol 2014; 60:737-43. [PMID: 25322256 DOI: 10.1139/cjm-2014-0468] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The staphylococcal enterotoxins (SEs) are potent gastrointestinal exotoxins synthesized by Staphylococcus aureus, which is responsible for various diseases including septicemia, food poisoning, and toxic shock syndrome, as well as bovine mastitis. Among them, staphylococcal enterotoxin A (SEA) is one of the most commonly present serotypes in staphylococcal food poisoning cases. In this study, the stable hybridoma 3C12 producing anti-SEA monoclonal antibody was established with an equilibrium dissociation constant (KD) of 1.48 × 10(-8) mol·L(-1), its ScFv-coding genes were obtained and then the anti-SEA single chain variable fragment (ScFv) protein was expressed in Escherichia coli. Characterization of the expressed target ScFv protein was analyzed by sodium dodecyl sulfate - polyacrylamide gel electrophoresis, Western blot, and enzyme-linked immunosorbent assay. The results demonstrated that the recombinant anti-SEA ScFv protein retained a specific binding activity for SEA, and the KD value of the soluble ScFv was about 3.75 × 10(-7) mol·L(-1). The overall yield of bioactive anti-SEA ScFv in E. coli flask culture was more than 10 mg·L(-1).
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Affiliation(s)
- Weifeng Chen
- a College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070 Hubei, People's Republic of China
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26
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Sui T, Que J, Kong D, Xie H, Wang D, Shi K, Cao X, Li X. Rapid identification of spinal ventral and dorsal roots using a quartz crystal microbalance. Neural Regen Res 2014; 8:686-92. [PMID: 25206714 PMCID: PMC4146075 DOI: 10.3969/j.issn.1673-5374.2013.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 02/01/2013] [Indexed: 11/18/2022] Open
Abstract
The fast and accurate identification of nerve tracts is critical for successful nerve anastomosis. Taking advantage of differences in acetylcholinesterase content between the spinal ventral and dorsal roots, we developed a novel quartz crystal microbalance method to distinguish between these nerves based on acetylcholinesterase antibody reactivity. The acetylcholinesterase antibody was immobilized on the electrode surface of a quartz crystal microbalance and reacted with the acetylcholinesterase in sample solution. The formed antigen and antibody complexes added to the mass of the electrode inducing a change in frequency of the electrode. The spinal ventral and dorsal roots were distinguished by the change in frequency. The ventral and dorsal roots were cut into 1 to 2-mm long segments and then soaked in 250 μL PBS. Acetylcholinesterase antibody was immobilized on the quartz crystal microbalance gold electrode surface. The results revealed that in 10 minutes, both spinal ventral and dorsal roots induced a frequency change; however, the frequency change induced by the ventral roots was notably higher than that induced by the dorsal roots. No change was induced by bovine serum albumin or PBS. These results clearly demonstrate that a quartz crystal microbalance sensor can be used as a rapid, highly sensitive and accurate detection tool for the quick identification of spinal nerve roots intraoperatively.
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Affiliation(s)
- Tao Sui
- Department of Orthopedics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Jun Que
- Department of Intensive Care Unit, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Dechao Kong
- Department of Orthopedics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Hao Xie
- Department of Orthopedics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Daode Wang
- Department of Orthopedics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Kun Shi
- Department of Orthopedics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Xiaojian Cao
- Department of Orthopedics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Xiang Li
- Department of Orthopedics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
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27
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Huebner M, Ben Haddada M, Méthivier C, Niessner R, Knopp D, Boujday S. Layer-by-layer generation of PEG-based regenerable immunosensing surfaces for small-sized analytes. Biosens Bioelectron 2014; 67:334-41. [PMID: 25201037 DOI: 10.1016/j.bios.2014.08.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/18/2014] [Accepted: 08/20/2014] [Indexed: 12/27/2022]
Abstract
Small molecules (haptens) like pharmaceuticals or peptides can serve as targets for antibody binding in competitive immunoassay-based flow-through assays. In this work, a strategy for preparing polyethylene glycol (PEG) coatings for subsequent hapten immobilization on glass-type silica surfaces is presented and characterized in detail. Two substrates bearing terminal silanol groups were utilized, a glass slide and a silicon wafer. First, surfaces were thoroughly cleaned and pretreated to generate additional silanol groups. Then, a silane layer with terminal epoxy groups was created using 3-glycidyloxypropyltrimethoxysilane (GOPTS). Epoxy groups were used to bind a layer of diamino-poly(ethylene glycol) (DAPEG) with terminal amino groups. Finally, the low molecular weight compound diclofenac was bound to the surface to be used as model ligand for competitive biosensing of haptens. The elementary steps were characterized using atomic force microscopy (AFM), water contact angle measurement, grazing-angle attenuated total reflection (GA-ATR) FT-IR spectroscopy, and X-ray photoelectron spectroscopy (XPS). The data collected using these techniques have confirmed the successive grafting of the molecular species, evidencing, that homogeneous monolayers were created on the silica surfaces and validated the proposed mechanism of functionalization. The resulting surfaces were used to investigate polyclonal anti-diclofenac antibodies recognition and reversibility using quartz crystal microbalance with dissipation (QCM-D) measurements or an automated flow-through immunoassay with chemiluminescence (CL) read-out. For both techniques, recognition and reversibility of the antibody binding were observed. The stability of sensors over time was also assessed and no decrease in CL response was observed upon 14 days in aqueous solution. The herein presented strategy for surface functionalization can be used in the future as reproducible and reusable universal platform for hapten biosensors.
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Affiliation(s)
- Maria Huebner
- Chair for Analytical Chemistry and Institute of Hydrochemistry, Technische Universität München, Marchioninistr. 17, Munich, Germany
| | - Maroua Ben Haddada
- Sorbonne Universités, UPMC Univ Paris 6, UMR CNRS 7197, Laboratoire de Réactivité de Surface, F75005 Paris, France; CNRS, UMR 7197, Laboratoire de Réactivité de Surface, F75005 Paris, France
| | - Christophe Méthivier
- Sorbonne Universités, UPMC Univ Paris 6, UMR CNRS 7197, Laboratoire de Réactivité de Surface, F75005 Paris, France; CNRS, UMR 7197, Laboratoire de Réactivité de Surface, F75005 Paris, France
| | - Reinhard Niessner
- Chair for Analytical Chemistry and Institute of Hydrochemistry, Technische Universität München, Marchioninistr. 17, Munich, Germany
| | - Dietmar Knopp
- Chair for Analytical Chemistry and Institute of Hydrochemistry, Technische Universität München, Marchioninistr. 17, Munich, Germany.
| | - Souhir Boujday
- Sorbonne Universités, UPMC Univ Paris 6, UMR CNRS 7197, Laboratoire de Réactivité de Surface, F75005 Paris, France; CNRS, UMR 7197, Laboratoire de Réactivité de Surface, F75005 Paris, France.
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28
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Reddy P, Ramlal S, Sripathy MH, Batra HV. Development and evaluation of IgY ImmunoCapture PCR ELISA for detection of Staphylococcus aureus enterotoxin A devoid of protein A interference. J Immunol Methods 2014; 408:114-22. [DOI: 10.1016/j.jim.2014.05.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 05/27/2014] [Accepted: 05/27/2014] [Indexed: 10/25/2022]
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29
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Chang K, Wang F, Ding Y, Pan F, Li F, Jia S, Lu W, Deng S, Shi J, Chen M. Development and validation of a novel leaky surface acoustic wave immunosensor array for label-free and high-sensitive detection of cyclosporin A in whole-blood samples. Biosens Bioelectron 2014; 54:151-7. [DOI: 10.1016/j.bios.2013.10.066] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 10/23/2013] [Accepted: 10/23/2013] [Indexed: 11/30/2022]
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30
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Hervier A, Blanchard J, Costentin G, Regalbuto J, Louis C, Boujday S. The genesis of a heterogeneous catalyst: in situ observation of a transition metal complex adsorbing onto an oxide surface in solution. Chem Commun (Camb) 2014; 50:2409-11. [DOI: 10.1039/c3cc48838a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal complex adsorption onto an oxide surface was observed in situ using a quartz crystal microbalance at the solid–liquid interface.
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Affiliation(s)
- Antoine Hervier
- Sorbonne Universités
- UPMC Univ Paris 6
- UMR CNRS 7197
- Laboratoire de Réactivité de Surface
- F75005 Paris, France
| | - Juliette Blanchard
- Sorbonne Universités
- UPMC Univ Paris 6
- UMR CNRS 7197
- Laboratoire de Réactivité de Surface
- F75005 Paris, France
| | - Guylène Costentin
- Sorbonne Universités
- UPMC Univ Paris 6
- UMR CNRS 7197
- Laboratoire de Réactivité de Surface
- F75005 Paris, France
| | - John Regalbuto
- University of South Carolina
- Chemical Engineering
- Columbia, USA
| | - Catherine Louis
- Sorbonne Universités
- UPMC Univ Paris 6
- UMR CNRS 7197
- Laboratoire de Réactivité de Surface
- F75005 Paris, France
| | - Souhir Boujday
- Sorbonne Universités
- UPMC Univ Paris 6
- UMR CNRS 7197
- Laboratoire de Réactivité de Surface
- F75005 Paris, France
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31
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Zhang C, Liu Z, Li Y, Li Q, Song C, Xu Z, Zhang Y, Zhang Y, Ma Y, Sun Y, Chen L, Fang L, Yang A, Yang K, Jin B. High sensitivity chemiluminescence enzyme immunoassay for detecting staphylococcal enterotoxin A in multi-matrices. Anal Chim Acta 2013; 796:14-9. [DOI: 10.1016/j.aca.2013.07.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 07/04/2013] [Accepted: 07/16/2013] [Indexed: 10/26/2022]
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Development of a label-free immunosensor based on surface plasmon resonance technique for the detection of anti-Leishmania infantum antibodies in canine serum. Biosens Bioelectron 2013; 46:22-9. [DOI: 10.1016/j.bios.2013.01.067] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Revised: 01/24/2013] [Accepted: 01/25/2013] [Indexed: 11/21/2022]
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Sui T, Ge Y, Liu W, Zhao ZK, Zhang N, Cao X. An acetylcholinesterase antibody-based quartz crystal microbalance for the rapid identification of spinal ventral and dorsal roots. PLoS One 2013; 8:e69049. [PMID: 23935920 PMCID: PMC3720868 DOI: 10.1371/journal.pone.0069049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 06/03/2013] [Indexed: 11/26/2022] Open
Abstract
Differences in the levels of acetylcholinesterase (AChE) in ventral and dorsal spinal roots can be used to differentiate the spinal nerves. Although many methods are available to assay AChE, a rapid and sensitive method has not been previously developed. Here, we describe an antibody-based quartz crystal microbalance (QCM) assay and its application for the quantification of AChE in the solutions of ventral and dorsal spinal roots. The frequency variation of the QCM device corresponds to the level of AChE over a wide dynamic range (0.5-10 µg/ml), which is comparable to the response range of the ELISA method. The frequency shift caused by the ventral roots is 3-fold greater than that caused by the dorsal roots. The antibody-based QCM sensor was stable across many successive replicate samples, and the method required less than 10 min, including the AChE extraction and analysis steps. This method is a rapid and convenient means for the quantification of AChE in biological samples and may be applicable for distinguishing the ventral and dorsal roots during surgical operations.
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Affiliation(s)
- Tao Sui
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People’s Republic of China
| | - Yingbin Ge
- Department of Physiology, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Wujun Liu
- Division of Biotechnology, Dalian Institute of Chemical Physics, CAS, Dalian, People’s Republic of China
| | - Zongbao K. Zhao
- Division of Biotechnology, Dalian Institute of Chemical Physics, CAS, Dalian, People’s Republic of China
| | - Ning Zhang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People’s Republic of China
| | - Xiaojian Cao
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People’s Republic of China
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Clarisse T, Michèle S, Olivier T, Valérie E, Vincent LM, Jacques-Antoine H, Michel G, Florence V. Detection and quantification of staphylococcal enterotoxin A in foods with specific and sensitive polyclonal antibodies. Food Control 2013. [DOI: 10.1016/j.foodcont.2012.11.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kuang H, Wang W, Xu L, Ma W, Liu L, Wang L, Xu C. Monoclonal antibody-based sandwich ELISA for the detection of staphylococcal enterotoxin A. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2013; 10:1598-608. [PMID: 23603865 PMCID: PMC3709337 DOI: 10.3390/ijerph10041598] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 03/26/2013] [Accepted: 04/15/2013] [Indexed: 12/29/2022]
Abstract
A sensitive and specific monoclonal antibody-based sandwich enzyme-linked immunosorbent assay (ELISA) was established and validated for the detection of staphylococcal enterotoxin A (SEA). After routine fusion and selection, 10 monoclonal antibodies showed high affinity for SEA. An optimal pair for sandwich ELISA was selected by pairwise interaction analysis. After optimization, the limit of detection (LOD) and linear dynamic range of the method were established, and were found to be 0.0282 ng/mL and 0.06–2 ng/mL, respectively. The recovery in pure milk ranged from 82.67% to 111.95% and the intra- and inter-assay coefficients of variation ranged from 3.16% to 6.05% and from 5.16% to 10.79%, respectively. Cross-reactivity with staphylococcal enterotoxin B (SEB), staphylococcal enterotoxin C (SEC), staphylococcal enterotoxin D (SED), and staphylococcal enterotoxin E (SEE) in this method were insignificant. These results indicate that the sandwich ELISA method developed in our study is effective for routine identification of SEA in food samples.
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Affiliation(s)
- Hua Kuang
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, China; E-Mails: (W.W.); (L.X.); (W.M.); (L.L.); (C.X.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-510-8591-7500; Fax: +86-510-8532-9076
| | - Wenbing Wang
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, China; E-Mails: (W.W.); (L.X.); (W.M.); (L.L.); (C.X.)
| | - Liguang Xu
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, China; E-Mails: (W.W.); (L.X.); (W.M.); (L.L.); (C.X.)
| | - Wei Ma
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, China; E-Mails: (W.W.); (L.X.); (W.M.); (L.L.); (C.X.)
| | - Liqiang Liu
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, China; E-Mails: (W.W.); (L.X.); (W.M.); (L.L.); (C.X.)
| | - Libing Wang
- Research Centre of Hunan Entry-Exit Inspection and Quarantine Bureau, Changsha 410001, China; E-Mail:
| | - Chuanlai Xu
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, China; E-Mails: (W.W.); (L.X.); (W.M.); (L.L.); (C.X.)
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McGrath TF, Campbell K, Fodey TL, O'Kennedy R, Elliott CT. An evaluation of the capability of a biolayer interferometry biosensor to detect low-molecular-weight food contaminants. Anal Bioanal Chem 2013; 405:2535-44. [PMID: 23338757 DOI: 10.1007/s00216-012-6677-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 12/14/2012] [Accepted: 12/18/2012] [Indexed: 01/25/2023]
Abstract
The safety of our food is an essential requirement of society. One well-recognised threat is that of chemical contamination of our food, where low-molecular-weight compounds such as biotoxins, drug residues and pesticides are present. Low-cost, rapid screening procedures are sought to discriminate the suspect samples from the population, thus selecting only these to be forwarded for confirmatory analysis. Many biosensor assays have been developed as screening tools in food contaminant analysis, but these tend to be electrochemical, fluorescence or surface plasmon resonance based. An alternative approach is the use of biolayer interferometry, which has become established in drug discovery and life science studies but is only now emerging as a potential tool in the analysis of food contaminants. A biolayer interferometry biosensor was assessed using domoic acid as a model compound. Instrument repeatability was tested by simultaneously producing six calibration curves showing replicate repeatability (n = 2) ranging from 0.1 to 6.5 % CV with individual concentration measurements (n = 12) ranging from 4.3 to 9.3 % CV, giving a calibration curve midpoint of 7.5 ng/ml (2.3 % CV (n = 6)). Reproducibility was assessed by producing three calibration curves on different days, giving a midpoint of 7.5 ng/ml (3.4 %CV (n = 3)). It was further shown, using assay development techniques, that the calibration curve midpoint could be adjusted from 10.4 to 1.9 ng/ml by varying assay parameters before the simultaneous construction of three calibration curves in matrix and buffer. Sensitivity of the assay compared favourably with previously published biosensor data for domoic acid.
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Affiliation(s)
- Terry F McGrath
- ASSET Technology Centre, Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, Northern Ireland.
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Crosson C, Rossi C. Quartz crystal microbalance immunosensor for the quantification of immunoglobulin G in bovine milk. Biosens Bioelectron 2012; 42:453-9. [PMID: 23238318 DOI: 10.1016/j.bios.2012.11.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 11/07/2012] [Accepted: 11/10/2012] [Indexed: 11/30/2022]
Abstract
The development of precise and sensitive methods for milk analysis remains a challenging task in the milk quality control field. A piezoelectric immunosensor was developed for the real-time quantification of immunoglobulin G (IgG) in bovine milk and colostrum. The sensing surface was designed with rabbit antibovine IgG as the detecting molecule, coupled onto a carboxymethyl dextran-coated gold crystal. Total binding and non-specific binding were measured using a quartz crystal microbalance with dissipation (QCM-D). Conditions of analysis, including ligand immobilization, dilution ratio of milk, salinity, and pH of the dilution buffer were optimized by Doehlert experimental design in order to enhance the detection specificity. The performances of the optimized immunosensor were evaluated. The standard curve was established from QCM-D responses and was linear until an IgG concentration of 2500 ng/mL, with a detection limit of 46 ng/mL. The total assay time is 5 min per sample, including the regeneration step. The intra- and inter-assay variation coefficients were equal to or below 4.7 and 6.1%, respectively. The sensing surface was stable for 100 analyses. This technique was successfully applied to the detection of colostrum addition in milk, with a minimum threshold of 0.1%. This new IgG quantification method is particularly interesting as a cost-effective and time-saving alternative for the dairy analytical laboratories when compared with the existing quantification methods.
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Affiliation(s)
- Cyril Crosson
- OCLA, Maison du Lait 42 Rue Châteaudun, 75009 Paris, France
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Jia K, Toury T, Ionescu RE. Fabrication of an atrazine acoustic immunosensor based on a drop-deposition procedure. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2012; 59:2015-2021. [PMID: 23007775 DOI: 10.1109/tuffc.2012.2421] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Among the various novel analytical systems, immunosensors based on acoustic waves are of emerging interest because of their good sensitivity, real-time monitoring capability, and experimental simplicity. In this work, piezoelectric immunosensors were constructed for the detection of atrazine through the immobilization of specific monoclonal anti-atrazine antibodies on thiolated modified quartz crystal microbalances (QCMs). The immunoassay was conducted by a novel drop-deposition procedure using different atrazine dilutions in phosphate buffer solution ranging from 10(-10) to 10(-1) mg/mL. The immunoreactions between varying contents of atrazine and its antibody were dynamically exhibited through in situ monitoring of the frequency and motional resistance changes over 20 min. Thus, atrazine recognition by the anti-atrazine antibody leads to a decrease of the resonant frequency that is proportional to a given atrazine concentration. Interestingly, the motional resistance also increased proportionally during the measurements, which could be attributed to the specific viscoelastic properties and/or conformation changes of the antibodies once the immunoreactions occurred. By combining the measurements of frequency with those of motional resistance, additional information was provided about the interaction between the atrazine-named antigen and its respective antibody. Finally, the analytical specificity of the immunosensor to atrazine was evaluated through the response to a nonspecific anti-human IgG antibody-modified QCM crystal under the same drop conditions.
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Affiliation(s)
- Kun Jia
- Laboratoire de Nanotechnologies et d’Instrumentation Optique, Université de Technologie de Troyes, Troyes, France
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Shlyapnikov YM, Shlyapnikova EA, Simonova MA, Shepelyakovskaya AO, Brovko FA, Komaleva RL, Grishin EV, Morozov VN. Rapid Simultaneous Ultrasensitive Immunodetection of Five Bacterial Toxins. Anal Chem 2012; 84:5596-603. [DOI: 10.1021/ac300567f] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Yuri M. Shlyapnikov
- Institute of Theoretical and
Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region, Russia 142290
| | - Elena A. Shlyapnikova
- Institute of Theoretical and
Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region, Russia 142290
| | - Maria A. Simonova
- Shemyakin and Ovchinnikov Institute
of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia 117997
| | - Anna O. Shepelyakovskaya
- Branch of Shemyakin and Ovchinnikov
Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Moscow Region, Russia 142290
| | - Fedor A. Brovko
- Branch of Shemyakin and Ovchinnikov
Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Moscow Region, Russia 142290
| | - Ravilya L. Komaleva
- Shemyakin and Ovchinnikov Institute
of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia 117997
| | - Eugene V. Grishin
- Shemyakin and Ovchinnikov Institute
of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia 117997
| | - Victor N. Morozov
- Institute of Theoretical and
Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region, Russia 142290
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