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Angelopoulou M, Tzialla K, Voulgari A, Dikeoulia M, Raptis I, Kakabakos SE, Petrou P. Rapid Detection of Salmonella typhimurium in Drinking Water by a White Light Reflectance Spectroscopy Immunosensor. SENSORS 2021; 21:s21082683. [PMID: 33920297 PMCID: PMC8069642 DOI: 10.3390/s21082683] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/01/2021] [Accepted: 04/07/2021] [Indexed: 02/01/2023]
Abstract
Biosensors represent an attractive approach for fast bacteria detection. Here, we present an optical biosensor for the detection of Salmonella typhimurium lipopolysaccharide (LPS) and Salmonella bacteria in drinking water, based on white light reflectance spectroscopy. The sensor chip consisted of a Si die with a thin SiO2 layer on top that was transformed into a biosensor through the immobilization of Salmonella LPS. The optical setup included a reflection probe with seven 200 μm fibers, a visible and near-infrared light source, and a spectrometer. The six fibers at the reflection probe circumference were coupled with the light source and illuminated the biosensor chip vertically, whereas the central fiber collected the reflected light and guided it to the spectrometer. A competitive immunoassay configuration was adopted for the analysis. Accordingly, a mixture of LPS or bacteria solution, pre-incubated for 15 min, with an anti-Salmonella LPS antibody was pumped over the chip followed by biotinylated secondary antibody and streptavidin for signal enhancement. The binding of the free anti-Salmonella antibody to chip-immobilized LPS led to a shift of the reflectance spectrum that was inversely related to the analyte concentration (LPS or bacteria) in the calibrators or samples. The total assay duration was 15 min, and the detection limits achieved were 4 ng/mL for LPS and 320 CFU/mL for bacteria. Taking into account the low detection limits, the short analysis time, and the small size of the chip and instrumentation employed, the proposed immunosensor could find wide application for bacteria detection in drinking water.
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Affiliation(s)
- Michailia Angelopoulou
- Immunoassays/Immunosensors Lab, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Centre for Scientific Research “Demokritos”, 15341 Aghia Paraskevi, Greece; (K.T.); (S.E.K.)
- Correspondence: (M.A.); (P.P.); Tel.: +30-2106503819 (M.A. & P.P.)
| | - Konstantina Tzialla
- Immunoassays/Immunosensors Lab, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Centre for Scientific Research “Demokritos”, 15341 Aghia Paraskevi, Greece; (K.T.); (S.E.K.)
| | | | - Mary Dikeoulia
- Delta Foods S.A., 14565 Agios Stefanos, Greece; (A.V.); (M.D.)
| | | | - Sotirios Elias Kakabakos
- Immunoassays/Immunosensors Lab, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Centre for Scientific Research “Demokritos”, 15341 Aghia Paraskevi, Greece; (K.T.); (S.E.K.)
| | - Panagiota Petrou
- Immunoassays/Immunosensors Lab, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Centre for Scientific Research “Demokritos”, 15341 Aghia Paraskevi, Greece; (K.T.); (S.E.K.)
- Correspondence: (M.A.); (P.P.); Tel.: +30-2106503819 (M.A. & P.P.)
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Rani A, Ravindran VB, Surapaneni A, Shahsavari E, Haleyur N, Mantri N, Ball AS. Evaluation and comparison of recombinase polymerase amplification coupled with lateral-flow bioassay for Escherichia coli O157:H7 detection using diifeerent genes. Sci Rep 2021; 11:1881. [PMID: 33479307 PMCID: PMC7820579 DOI: 10.1038/s41598-021-81312-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 01/04/2021] [Indexed: 12/18/2022] Open
Abstract
Shiga toxin-producing Escherichia coli serotype O157:H7 is a food and waterborne zoonotic pathogen causing gastroenteritis in humans. Rapid and simple detection in water and food is imperative to control its spread. However, traditional microbial detection approaches are time-consuming, expensive and complex to operate at the point-of-care without professional training. We present a rapid, simple, sensitive, specific and portable method for detection of E. coli O157:H7 in drinking water, apple juice and milk. We evaluated the effect of gene selection in detecting E. coli O157:H7 using recombinase polymerase amplification coupled with a lateral flow assay using rfbE, fliC and stx gene targets. As low as 100 ag and 1 fg DNA, 4-5 CFU/mL and 101 CFU/mL of E. coli O157:H7 was detected using the stx and rfbE gene targets respectively with 100% specificity, whilst the detection limit was 10 fg DNA and 102 CFU/mL for the fliC gene target, with 72.8% specificity. The RPA-LFA can be completed within 8 min at temperatures between 37 and 42 °C with reduced handling and simple equipment requirements. The test threshold amplification of the target was achieved in 5-30 min of incubation. In conclusion, RPA-LFA represents a potential rapid and effective alternative to conventional methods for the monitoring of E. coli O157:H7 in food and water.
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Affiliation(s)
- Alka Rani
- School of Science, RMIT University, Bundoora West, VIC, 3083, Australia.
| | - Vivek B Ravindran
- School of Science, RMIT University, Bundoora West, VIC, 3083, Australia
| | - Aravind Surapaneni
- South East Water, Frankston, VIC, Australia.,ARC Training Centre for the Transformation of Australia's Biosolids Resource, RMIT University, Bundoora West, VIC, 3083, Australia
| | | | | | - Nitin Mantri
- The Pangenomics Group, School of Science, RMIT University, Melbourne, VIC, 3083, Australia
| | - Andrew S Ball
- School of Science, RMIT University, Bundoora West, VIC, 3083, Australia.,ARC Training Centre for the Transformation of Australia's Biosolids Resource, RMIT University, Bundoora West, VIC, 3083, Australia
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A Rapid Enzyme-Linked Immunomagnetic Electrochemical (ELIME) Assay for the Detection of Escherichia coli O26 in Raw Milk. FOOD ANAL METHOD 2020. [DOI: 10.1007/s12161-020-01758-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Zhou W, Wang K, Hong W, Bai C, Chen L, Fu X, Huang T, Liu J. Development and Application of a Simple "Easy To Operate" Propidium Monoazide-Crossing Priming Amplification on Detection of Viable and Viable But Non-culturable Cells of O157 Escherichia coli. Front Microbiol 2020; 11:569105. [PMID: 33101241 PMCID: PMC7546352 DOI: 10.3389/fmicb.2020.569105] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/24/2020] [Indexed: 02/05/2023] Open
Abstract
O157 Escherichia coli is one of the most important foodborne pathogens causing disease even at low cellular numbers. Thus, the early and accurate detection of this pathogen is important. However, due to the formation of viable but non-culturable (VBNC) status, the golden standard culturing methodology fails to identify O157 E. coli once it enters VBNC status. Crossing priming amplification (CPA) is a novel, simple, easy-to-operate detection technology that amplifies DNA with high speed, efficiency, and specificity under isothermal conditions. The objective of this study was to firstly develop and apply a CPA assay with propidium monoazide (PMA) for the rapid detection of the foodborne E. coli O157:H7 in VBNC state. Five primers (2a/1s, 2a, 3a, 4s, and 5a) were specially designed for recognizing three targets, which were rfbE, stx1, and stx2, and evaluated for its effectiveness in detecting VBNC cell of E. coli O157:H7 with detection limits of pure VBNC culture at 103, 105, and 105 colony-forming units (CFUs)/ml for rfbE, stx1, and stx2, respectively, whereas those of food samples (frozen pastry and steamed bread) were 103, 105, and 105 CFUs/ml. The application of the PMA-CPA assay was successfully used on detecting E. coli O157:H7 in VBNC state from food samples. In conclusion, this is the first development of PMA-CPA assay on the detection of VBNC cell, which was found to be useful and a powerful tool for the rapid detection of E. coli O157:H7 in VBNC state. Undoubtedly, the PMA-CPA method can be of high value to the food industry owing to its various advantages such as speed, specificity, sensitivity, and cost-effectiveness.
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Affiliation(s)
- Wenqu Zhou
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, China
| | - Kan Wang
- Research Center for Translational Medicine, The Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Wei Hong
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, China
| | - Caiying Bai
- Guangdong Women and Children Hospital, Guangzhou, China
| | - Ling Chen
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, China
- Research Institute for Food Nutrition and Human Health, Guangzhou, China
| | - Xin Fu
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, China
- *Correspondence: Xin Fu,
| | - Tengyi Huang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Junyan Liu
- Department of Civil and Environmental Engineering, University of Maryland, College Park, MD, United States
- Junyan Liu,
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Recent progress in electrochemical biosensors as point of care diagnostics in livestock health. Anal Biochem 2019; 579:25-34. [PMID: 31128087 DOI: 10.1016/j.ab.2019.05.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 05/16/2019] [Accepted: 05/21/2019] [Indexed: 11/20/2022]
Abstract
Livestock are critical component for supporting the sustainable agriculture in the current global scenario. In the era of artificial intelligence and automation in field of livestock, sensors play an important role. Electrochemical sensor is the type of sensor which holds reliability and tremendous promise in raising the animal productivity in developing world. An early and accurate diagnosis of the animal pathogen and metabolic status are the cornerstone for better animal productivity. The available diagnostic techniques require tedious sample preparation, sophisticated instrument, dedicated laboratory, trained personnel and it is time consuming also. The electrochemical biosensor technology might be a smart solution because of its sensitivity, simplicity, low cost, possible miniaturization and potential ability for real-time analysis. In the veterinary disease diagnostics, various biosensors including electrochemical biosensors have been developed recently, based on disease specific biomarkers. The main focus of article is on reviewing the research in detection of animal infectious and metabolic diseases, hormonal analysis and sweat analysis with electrochemical biosensor.
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Rezaei B, Jamei HR, Ensafi AA. Lysozyme aptasensor based on a glassy carbon electrode modified with a nanocomposite consisting of multi-walled carbon nanotubes, poly(diallyl dimethyl ammonium chloride) and carbon quantum dots. Mikrochim Acta 2018; 185:180. [PMID: 29594452 DOI: 10.1007/s00604-017-2656-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 12/29/2017] [Indexed: 12/25/2022]
Abstract
An aptamer-based method is described for electrochemical determination of lysozyme. A glassy carbon electrode was modified with a nanocomposite composed of multi-walled carbon nanotubes, poly(diallyl dimethyl ammonium chloride), and carbon quantum dots. The composition of the nanocomposite (MWCNT/PDDA/CQD) warrants good electrical conductivity and a high surface-to-volume ratio. The lysozyme-binding aptamers were immobilized on the nanocomposite via covalent coupling between the amino groups of the aptamer and the carboxy groups of the nanocomposite. The modified electrode was characterized by electrochemical impedance spectroscopy, cyclic voltammetry and differential pulse voltammetry. The use of this nanocomposite results in a considerable enhancement of the electrochemical signal and contributes to improving sensitivity. Hexacyanoferrate was used as an electrochemical probe to study the dependence of the peak current on lysozyme concentration. In the presence of lysozyme, the interaction of lysozyme with immobilized aptamer results in a decrease of the peak current, best measured at +0.15 V vs. Ag/AgCl. A plot of peak current changes versus the logarithm of the lysozyme concentration is linear in the 50 fmol L-1 to 10 nmol L-1 concentration range, with a 12.9 fmol L-1 detection limit (at an S/N ratio of 3). The method is highly reproducible, specific and sensitive, and the electrode has a rapid response. It was applied to the determination of lysozyme in egg white, serum, and urine. Graphical abstract Schematic of a nanocomposite composed of multi-walled carbon nanotubes (MWCNTs), poly(diallyldimethyl ammonium chloride) (PDDA), and carbon quantum dots (CQDs) for use in a lysozyme aptasensor. The aptamer was immobilized on the surface, and bovine serum albumin (BSA) was applied to block the surface. The changes of peak current for the electrochemical probe hexacyanoferrate (Fe(CN)63-/4-) in the presence and absence of lysozyme was traced.
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Affiliation(s)
- Behzad Rezaei
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111 I.R., Iran.
| | - Hamid Reza Jamei
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111 I.R., Iran
| | - Ali Asghar Ensafi
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111 I.R., Iran
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Suaifan GARY, Alhogail S, Zourob M. Paper-based magnetic nanoparticle-peptide probe for rapid and quantitative colorimetric detection of Escherichia coli O157:H7. Biosens Bioelectron 2017; 92:702-708. [PMID: 27839734 DOI: 10.1016/j.bios.2016.10.023] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 09/30/2016] [Accepted: 10/08/2016] [Indexed: 12/31/2022]
Abstract
There is a critical and urgent demand for a simple, rapid and specific qualitative and quantitative colorimetric biosensor for the detection of the food contaminant Escherichia coli O157:H7 (E. coli O157:H7) in complex food products due to the recent outbreaks of food-borne diseases. Traditional detection techniques are time-consuming, require expensive instrumentation and are labour-intensive. To overcome these limitations, a novel, ultra-rapid visual biosensor was developed based on the ability of E. coli O157:H7 proteases to change the optical response of a surface-modified, magnetic nanoparticle-specific (MNP-specific) peptide probe. Upon proteolysis, a gradual increase in the golden color of the sensor surface was visually observed. The intensification of color was correlated with the E. coli O157:H7 concentration. The color change resulting from the dissociation of the self-assembled monolayer (SAM) was detected by the naked eye and analysed using an image analysis software (ImageJ) for the purpose of quantitative detection. This biosensor demonstrated high sensitivity and applicability, with lower limits of detection of 12CFUmL-1 in broth samples and 30-300CFUmL-1 in spiked complex food matrices. In conclusion, this approach permits the use of a disposable biosensor chip that can be mass-produced at low cost and can be used not only by food manufacturers but also by regulatory agencies for better control of potential health risks associated with the consumption of contaminated foods.
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Affiliation(s)
- Ghadeer A R Y Suaifan
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, The University of Jordan, Amman 11942, Jordan
| | - Sahar Alhogail
- Department of Chemistry, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Rd, Riyadh 11533, Saudi Arabia
| | - Mohammed Zourob
- Department of Chemistry, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Rd, Riyadh 11533, Saudi Arabia; King Faisal Specialist Hospital and Research Center, Zahrawi Street, Al Maather, Riyadh 12713, Saudi Arabia.
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8
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Xu M, Wang R, Li Y. Electrochemical biosensors for rapid detection of Escherichia coli O157:H7. Talanta 2016; 162:511-522. [PMID: 27837864 DOI: 10.1016/j.talanta.2016.10.050] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 10/06/2016] [Accepted: 10/10/2016] [Indexed: 12/17/2022]
Abstract
Electrochemical biosensors have shown great promise in the development of rapid methods for the detection of foodborne pathogens and have been intensively studied over the past two decades. The scope of this review is to summarize the advancements made in the development of electrochemical biosensors for the rapid detection of one of the most common foodborne pathogens, Escherichia coli O157:H7. The article is intended to include different configurations of electrochemical biosensors based on the sensing principles and measured electrical parameters, as well as the latest improvements of technology in the progress of electrochemical biosensor development to detect E. coli O157:H7. By discussing the current and future trend based on some of excellent published literatures and reviews, this survey is hoped to illustrate a broad and comprehensive understanding of electrochemical biosensors for the detection of foodborne pathogens.
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Affiliation(s)
- Meng Xu
- Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| | - Ronghui Wang
- Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| | - Yanbin Li
- Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR 72701, USA; Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA.
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Ranjbar R, Erfanmanesh M, Afshar D, Mohammadi M, Ghaderi O, Haghnazari A. Visual Detection of Enterohemorrhagic Escherichia coli O157:H7 Using Loop-Mediated Isothermal Amplification. Electron Physician 2016; 8:2576-85. [PMID: 27504175 PMCID: PMC4965210 DOI: 10.19082/2576] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 01/20/2016] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION Escherichia coli O157:H7, an important foodborne pathogen, can cause serious renal damage, which can also lead to mortality. Since a rapid and sensitive method is needed to identify this pathogenic agent, we evaluated Loop-Mediated Isothermal Amplification Assay (LAMP) to detect Escherichia coli O157:H7. METHODS We used six primers that specifically identified the rfbE gene. To examine the sensitivity of the method, different dilutions were subjected to the LAMP reaction. Other bacterial strains also were investigated to determine the specificity of the test. The turbidity of the amplified products was assayed by visual detection. The amplified products were detected by addition of SYBR Green II to the reaction tubes. RESULTS Amplification products were observed as a ladder-like pattern on the agarose gel. A white turbidity emerged in the positive tubes. Under UV light, the positive samples were green, whereas the negative samples were orange. The detection limit of the LAMP was 78 pg/tube, and this indicated that it was 100 times more sensitive than PCR for the detection of EHEC. No LAMP products were detected when template DNA of non-EHEC strains were used, suggesting high specificity of the LAMP assay. CONCLUSION The results indicated that the LAMP assay is a valuable diagnostic assay to identify EHEC O157:H7. In addition, the simplicity, sensitivity, specificity, and rapidity of this assay make it a useful method to diagnose pathogens in primary labs without any need for expensive equipment or specialized techniques.
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Affiliation(s)
- Reza Ranjbar
- Ph.D. of Medical Bacteriology, Professor, Molecular Biology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Maryam Erfanmanesh
- M.Sc. of Biotechnology, Department of Agriculture and Plant Breeding, Faculty of Agriculture, Zanjan University, Zanjan, Iran
| | - Davoud Afshar
- Ph.D. of Medical Bacteriology, Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Mohammadi
- Ph.D. of Pharmaceutical Biotechnology, Assistant Professor, Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Omar Ghaderi
- Ph.D. Candidate of Pharmaceutical Biotechnology, Department of Pharmaceutical Biotechnology, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Haghnazari
- Department of Agriculture and Plant Breeding, Faculty of Agriculture, Zanjan University, Zanjan, Iran
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Heydari-Bafrooei E, Amini M, Ardakani MH. An electrochemical aptasensor based on TiO2/MWCNT and a novel synthesized Schiff base nanocomposite for the ultrasensitive detection of thrombin. Biosens Bioelectron 2016; 85:828-836. [PMID: 27295570 DOI: 10.1016/j.bios.2016.06.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 06/04/2016] [Accepted: 06/06/2016] [Indexed: 12/31/2022]
Abstract
A sensitive aptasensor based on a robust nanocomposite of titanium dioxide nanoparticles, multiwalled carbon nanotubes (MWCNT), chitosan and a novel synthesized Schiff base (SB) (TiO2/MWCNT/CHIT/SB) on the surface of a glassy carbon electrode (GCE) was developed for thrombin detection. The resultant nanocomposite can provide a large surface area, excellent electrocatalytic activity, and high stability, which would improve immobilization sites for biological molecules, allow remarkable amplification of the electrochemical signal and contribute to improved sensitivity. Thrombin aptamers were simply immobilized onto the TiO2-MWCNT/CHIT-SB nanocomposite matrix through simple π - π stacking and electrostatic interactions between CHIT/SB and aptamer strands. The electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used to analyze the surface characterization of unmodified GCE and TiO2-MWCNT/CHIT-SB modified GCE, and also the interaction between aptamer and thrombin. In the presence of thrombin, the aptamer on the adsorbent layer captures the target on the electrode interface, which makes a barrier for electrons and inhibits electron transfer, thereby resulting in decreased DPV and increased impedance signals of the TiO2-MWCNT/CHIT-SB modified GCE. Furthermore, the proposed aptasensor has a very low LOD of 1.0fmolL(-1) thrombin within the detection range of 0.00005-10nmolL(-1). The aptasensor also presents high specificity and reproducibility for thrombin, which is unaffected by the coexistence of other proteins. Clinical application was performed with analysis of the thrombin levels in blood and CSF samples obtained from patients with MS, Parkinson, Epilepsy and Polyneuropathy using both the aptasensor and commercial ELISA kit. The results revealed the proposed system to be a promising candidate for clinical analysis of thrombin.
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Affiliation(s)
- Esmaeil Heydari-Bafrooei
- Department of Chemistry, Faculty of Science, Vali-e-Asr University of Rafsanjan, 77188-97111, Iran.
| | - Maryam Amini
- Department of Chemistry, Faculty of Science, Vali-e-Asr University of Rafsanjan, 77188-97111, Iran
| | - Mehdi Hatefi Ardakani
- Department of Chemistry, Faculty of Science, Vali-e-Asr University of Rafsanjan, 77188-97111, Iran
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Wang Y, Salazar JK. Culture-Independent Rapid Detection Methods for Bacterial Pathogens and Toxins in Food Matrices. Compr Rev Food Sci Food Saf 2015; 15:183-205. [DOI: 10.1111/1541-4337.12175] [Citation(s) in RCA: 161] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 09/14/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Yun Wang
- Div. of Food Processing Science and Technology; U.S. Food and Drug Administration; Bedford Park IL U.S.A
| | - Joelle K. Salazar
- Div. of Food Processing Science and Technology; U.S. Food and Drug Administration; Bedford Park IL U.S.A
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12
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Cloutier BC, Cloutier AK, Alocilja EC. Optimization of electrically active magnetic nanoparticles as accurate and efficient microbial extraction tools. BIOSENSORS-BASEL 2015; 5:69-84. [PMID: 25664527 PMCID: PMC4384083 DOI: 10.3390/bios5010069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 12/18/2014] [Accepted: 01/23/2015] [Indexed: 12/03/2022]
Abstract
Food defense requires the means to efficiently screen large volumes of food for microbial pathogens. Even rapid detection methods often require lengthy enrichment steps, making them impractical for this application. There is a great need for rapid, sensitive, specific, and inexpensive methods for extracting and concentrating microbial pathogens from food. In this study, an immuno-magnetic separation (IMS) methodology was developed for Escherichia coli O157:H7, using electrically active magnetic nanoparticles (EAMNPs). The analytical specificity of the IMS method was evaluated against Escherichia coli O55:H7 and Shigella boydii, and was improved over previous protocols by the addition of sodium chloride during the conjugation of antibodies onto MNPs. The analytical sensitivity of the IMS method was greatest when a high concentration of antibodies (1.0 mg/mL) was present during conjugation. EAMNP concentrations of 1.0 and 0.5 mg/mL provided optimal analytical sensitivity and analytical specificity. The entire IMS procedure requires only 35 min, and antibody-conjugated MNPs show no decline in performance up to 149 days after conjugation. This analytically sensitive and specific extraction protocol has excellent longevity and shows promise as an effective extraction for multiple electrochemical biosensor applications.
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Affiliation(s)
- Barbara C Cloutier
- Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, 275 Slappy Drive, Hamilton, GA 31811, USA.
- Department of Biosystems and Agricultural Engineering, Michigan State University, 115 Farrall Hall, East Lansing, MI 48824, USA.
| | - Ashley K Cloutier
- Department of Biosystems and Agricultural Engineering, Michigan State University, 115 Farrall Hall, East Lansing, MI 48824, USA.
| | - Evangelyn C Alocilja
- Department of Biosystems and Agricultural Engineering, Michigan State University, 115 Farrall Hall, East Lansing, MI 48824, USA.
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A sensitive electrochemical DNA biosensor for specific detection of Enterobacteriaceae bacteria by Exonuclease III-assisted signal amplification. Biosens Bioelectron 2013; 48:132-7. [DOI: 10.1016/j.bios.2013.03.084] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Revised: 03/26/2013] [Accepted: 03/26/2013] [Indexed: 01/06/2023]
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14
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Sensitive detection of enteropathogenic E. coli using a bfpA gene-based electrochemical sensor. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1061-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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15
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Aptasensor and genosensor methods for detection of microbes in real world samples. Methods 2013; 64:229-40. [PMID: 23872322 DOI: 10.1016/j.ymeth.2013.07.001] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 07/04/2013] [Accepted: 07/05/2013] [Indexed: 12/31/2022] Open
Abstract
The increasing concerns about food and environmental safety have prompted the desire to develop rapid, specific, robust and highly sensitive methods for the detection of microorganisms to ensure public health. Although traditional microbiological methods are available, they are labor intensive, unsuitable for on-site and high throughput analysis, and need well-trained personnel. To circumvent these drawbacks, many efforts have been devoted towards the development of biosensors, using nucleic acid as bio-recognition element. In this review, we will focus on recent significant advances made in two types of DNA-based biosensors, namely genosensors, and aptasensors. In genosensor approach, DNA or RNA target is detected through the hybridization reaction between DNA or RNA and ssDNA sensing element, while in aptasensor method, DNA or RNA aptamer, capable of binding to a target molecule with high affinity and specificity, plays the role of receptor. The goal of this article is to review the innovative methods that have been emerged in genosensor and aptasensor during recent years. Particular attention is given to recent advances and trends in selection of biorecognition element, DNA immobilization strategies and sensing formats.
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Paniel N, Baudart J. Colorimetric and electrochemical genosensors for the detection of Escherichia coli DNA without amplification in seawater. Talanta 2013; 115:133-42. [PMID: 24054570 DOI: 10.1016/j.talanta.2013.04.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 04/12/2013] [Accepted: 04/22/2013] [Indexed: 11/25/2022]
Abstract
Monitoring seawater, particularly recreational water, for indicator bacteria presence is required to protect the public from exposure to fecal pollution and to guarantee the safety of the swimming areas. Two methods for the detection and quantification of Escherichia coli DNA were developed: a colorimetric assay in a microplate and an electrochemical biosensor. These assays were based on the double hybridization recognition of a single-strand DNA capture probe immobilized onto the microplate or the screen-printed carbon electrode to its complementary ssDNA, which is hybridized with an ssDNA signal probe labeled with horseradish peroxidase enzyme. The hybridization recognition step used the colorimetric monitoring of the oxidation state of the 3,3',5,5'-tetramethylbenzidine. The electrochemical monitoring of the oxidation state of 5 methyl-phenazinium methyl sulfate was allowed when the horseradish-peroxidase was in the presence of the mediator (5 methyl-phenazinium methyl sulfate and hydrogen peroxide). These approaches allow for the detection and quantification of 10(2) to 10(3) cells of E. coli in 5l of seawater samples in less than 5h. Detection was achieved without a nucleic acid amplification step. The specificity of the two methods against E. coli was demonstrated by testing a panel of bacteria. The two methods can be used for on-site monitoring of seawater quality.
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Affiliation(s)
- Nathalie Paniel
- UPMC Univ Paris 06, UMR 7621, LOMIC, Observatoire Océanologique, F-66650, Banyuls/mer, France; CNRS, UMR 7621, LOMIC, Observatoire Océanologique, F-66650, Banyuls/mer, France.
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Luo C, Lei Y, Yan L, Yu T, Li Q, Zhang D, Ding S, Ju H. A Rapid and Sensitive Aptamer-Based Electrochemical Biosensor for Direct Detection of Escherichia Coli O111. ELECTROANAL 2012. [DOI: 10.1002/elan.201100700] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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18
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Setterington EB, Alocilja EC. Electrochemical biosensor for rapid and sensitive detection of magnetically extracted bacterial pathogens. BIOSENSORS-BASEL 2012; 2:15-31. [PMID: 25585629 PMCID: PMC4263547 DOI: 10.3390/bios2010015] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 01/04/2012] [Accepted: 01/16/2012] [Indexed: 11/16/2022]
Abstract
Biological defense and security applications demand rapid, sensitive detection of bacterial pathogens. This work presents a novel qualitative electrochemical detection technique which is applied to two representative bacterial pathogens, Bacillus cereus (as a surrogate for B. anthracis) and Escherichia coli O157:H7, resulting in detection limits of 40 CFU/mL and 6 CFU/mL, respectively, from pure culture. Cyclic voltammetry is combined with immunomagnetic separation in a rapid method requiring approximately 1 h for presumptive positive/negative results. An immunofunctionalized magnetic/polyaniline core/shell nano-particle (c/sNP) is employed to extract target cells from the sample solution and magnetically position them on a screen-printed carbon electrode (SPCE) sensor. The presence of target cells significantly inhibits current flow between the electrically active c/sNPs and SPCE. This method has the potential to be adapted for a wide variety of target organisms and sample matrices, and to become a fully portable system for routine monitoring or emergency detection of bacterial pathogens.
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Affiliation(s)
- Emma B Setterington
- Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA.
| | - Evangelyn C Alocilja
- Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA.
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Tseng YT, Chang HY, Huang CC. A mass spectrometry-based immunosensor for bacteria using antibody-conjugated gold nanoparticles. Chem Commun (Camb) 2012; 48:8712-4. [DOI: 10.1039/c2cc34120d] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Setterington EB, Alocilja EC. Rapid electrochemical detection of polyaniline-labeled Escherichia coli O157:H7. Biosens Bioelectron 2011; 26:2208-14. [DOI: 10.1016/j.bios.2010.09.036] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Revised: 09/16/2010] [Accepted: 09/18/2010] [Indexed: 11/25/2022]
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Gehring AG, Tu SI. High-throughput biosensors for multiplexed food-borne pathogen detection. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2011; 4:151-172. [PMID: 21689045 DOI: 10.1146/annurev-anchem-061010-114010] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Incidental contamination of foods by pathogenic bacteria and/or their toxins is a serious threat to public health and the global economy. The presence of food-borne pathogens and toxins must be rapidly determined at various stages of food production, processing, and distribution. Producers, processors, regulators, retailers, and public health professionals need simple and cost-effective methods to detect different species or serotypes of bacteria and associated toxins in large numbers of food samples. This review addresses the desire to replace traditional microbiological plate culture with more timely and less cumbersome rapid, biosensor-based methods. Emphasis focuses on high-throughput, multiplexed techniques that allow for simultaneous testing of numerous samples, in rapid succession, for multiple food-borne analytes (primarily pathogenic bacteria and/or toxins).
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Affiliation(s)
- Andrew G Gehring
- Agricultural Research Service, U.S. Department of Agriculture, Wyndmoor, Pennsylvania 19038, USA
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Zhao X, Li Y, Wang L, You L, Xu Z, Li L, He X, Liu Y, Wang J, Yang L. Development and application of a loop-mediated isothermal amplification method on rapid detection Escherichia coli O157 strains from food samples. Mol Biol Rep 2009; 37:2183-8. [PMID: 19685165 DOI: 10.1007/s11033-009-9700-6] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Accepted: 07/29/2009] [Indexed: 11/29/2022]
Abstract
We developed and evaluated the specificity and sensitivity of a loop-mediated isothermal amplification (LAMP) method for rapid detection of the food-borne Escherichia coli O157 strains. Six primers, including outer primers, inner primers and loop primers, were specially designed for recognizing eight distinct sequences on three targets, which were rfbE, stx1 and stx2. The detection limits were found to be 100, 100 and 10 fg DNA/tube for rfbE, stx1 and stx2, respectively. Application of LAMP assays were performed on 417 food-borne E. coli strains, the sensitivity of LAMP assays for the rfbE, stx1 and stx2 was 100, 95.3 and 96.3%, and the negative predictive value was 100, 96.7 and 97.1%, respectively; with a 100% specificity and positive predictive value for all three targets.
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Affiliation(s)
- Xihong Zhao
- College of Light Industry and Food Sciences, South China University of Technology, 510640 Guangzhou, China
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Mujika M, Arana S, Castaño E, Tijero M, Vilares R, Ruano-López JM, Cruz A, Sainz L, Berganza J. Magnetoresistive immunosensor for the detection of Escherichia coli O157:H7 including a microfluidic network. Biosens Bioelectron 2008; 24:1253-8. [PMID: 18760584 DOI: 10.1016/j.bios.2008.07.024] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2008] [Revised: 07/15/2008] [Accepted: 07/15/2008] [Indexed: 11/26/2022]
Abstract
A hand held device has been designed for the immunomagnetic detection and quantification of the pathogen Escherichia coli O157:H7 in food and clinical samples. In this work, a technology to manufacture a Lab on a Chip that integrates a 3D microfluidic network with a microfabricated biosensor has been developed. With this aim, the sensing film optimization, the design of the microfluidic circuitry, the development of the biological protocols involved in the measurements and, finally, the packaging needed to carry out the assays in a safe and straightforward way have been completed. The biosensor is designed to be capable to detect and quantify small magnetic field variations caused by the presence of superparamagnetic beads bound to the antigens previously immobilized on the sensor surface via an antibody-antigen reaction. The giant magnetoresistive multilayer structure implemented as sensing film consists of 20[Cu(5.10nm)/Co(2.47 nm)] with a magnetoresistance of 3.20% at 235Oe and a sensitivity up to 0.06 Omega/Oe between 150Oe and 230Oe. Silicon nitride has been selected as optimum sensor surface coating due to its suitability for antibody immobilization. In order to guide the biological samples towards the sensing area, a microfluidic network made of SU-8 photoresist has been included. Finally, a novel packaging design has been fabricated employing 3D stereolithographic techniques. The microchannels are connected to the outside using standard tubing. Hence, this packaging allows an easy replacement of the used devices.
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Affiliation(s)
- M Mujika
- CEIT-IK4, Paseo de Manuel Lardizábal, No. 15, 20.018 Donostia-San Sebastián, Spain
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Rapid detection of Escherichia coli O157:H7 spiked into food matrices. Anal Chim Acta 2007; 584:66-71. [DOI: 10.1016/j.aca.2006.11.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2006] [Revised: 10/26/2006] [Accepted: 11/07/2006] [Indexed: 11/18/2022]
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Díaz-González M, González-García M, Costa-García A. Recent Advances in Electrochemical Enzyme Immunoassays. ELECTROANAL 2005. [DOI: 10.1002/elan.200503357] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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