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Nilghaz A, Lee SM, Su H, Yuan D, Tian J, Guijt RM, Wang X. Development of a pumpless acoustofluidic device for rapid food pathogen detection. Anal Chim Acta 2023; 1275:341581. [PMID: 37524466 DOI: 10.1016/j.aca.2023.341581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/27/2023] [Accepted: 06/30/2023] [Indexed: 08/02/2023]
Abstract
Mixing, homogenization, separation, and filtration are crucial processes in miniaturized analytical systems employed for in-vitro biological, environmental, and food analysis. However, in microfluidic systems achieving homogenization becomes more challenging due to the laminar flow conditions, which lack the turbulent flows typically used for mixing in traditional analytical systems. Here, we introduce an acoustofluidic platform that leverages an acoustic transducer to generate microvortex streaming, enabling effective homogenizing of food samples. To reduce reliance on external equipment, tubing, and pump, which is desirable for Point-of-Need testing, our pumpless platform employs a hydrophilic yarn capable of continuous wicking for sample perfusion. Following the homogenization process, the platform incorporates an array of micropillars for filtering out large particles from the samples. Additionally, the porous structure of the yarn provides a secondary screening mechanism. The resulting system is compact, and reliable, and was successfully applied to the detection of Escherichia coli (E. coli) in two different types of berries using quantitative polymerase chain reaction (qPCR). The platform demonstrated a detection limit of 5 CFU g-1, showcasing its effectiveness in rapid and sensitive pathogen detection.
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Affiliation(s)
- Azadeh Nilghaz
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Vic, 3216, Australia; Drug Delivery, Disposition, And Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, 3052, Australia.
| | - Soo Min Lee
- Australian Centre for Regional and Rural Futures, Deakin University, Waurn Ponds, Vic, 3216, Australia
| | - Hongli Su
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Vic, 3216, Australia
| | - Dan Yuan
- Drug Delivery, Disposition, And Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, 3052, Australia; Australian Centre for Regional and Rural Futures, Deakin University, Waurn Ponds, Vic, 3216, Australia; School of Mechanical & Mining Engineering, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Junfei Tian
- State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Rosanne M Guijt
- Drug Delivery, Disposition, And Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, 3052, Australia
| | - Xungai Wang
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Vic, 3216, Australia; JC STEM Lab of Sustainable Fibers and Textiles, School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, 999077, Hong Kong.
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2
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Chapman J, Orrell-Trigg R, Kwoon KY, Truong VK, Cozzolino D. A high-throughput and machine learning resistance monitoring system to determine the point of resistance for Escherichia coli with tetracycline: Combining UV-visible spectrophotometry with principal component analysis. Biotechnol Bioeng 2021; 118:1511-1519. [PMID: 33399220 DOI: 10.1002/bit.27664] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 12/13/2020] [Accepted: 12/29/2020] [Indexed: 12/11/2022]
Abstract
UV-visible spectroscopy (UV-Vis) is routinely used in microbiology as a tool to check the optical density (OD) pertaining to the growth stages of microbial cultures at the single wavelength of 600 nm, better known as the OD600 . Typically, modern UV-Vis spectrophotometers can scan in the region of approximately 200-1000 nm in the electromagnetic spectrum, where users do not extend the use of the instrument's full capability in a laboratory. In this study, the full potential of UV-Vis spectrophotometry (multiwavelength collection) was used to examine bacterial growth phases when treated with antibiotics showcasing the ability to understand the point of resistance when an antibiotic is introduced into the media and therefore understand the biochemical changes of the infectious pathogens. A multiplate reader demonstrated a high throughput experiment (96 samples) to understand the growth of Escherichia coli when varied concentrations of the antibiotic tetracycline was added into the well plates. Principal component analysis (PCA) and partial least squares discriminant analysis were then used as the data mining techniques to interpret the UV-Vis spectral data and generate machine learning "proof of principle" for the UV-Vis spectrophotometer plate reader. Results from this study showed that the PCA analysis provides an accurate yet simple visual classification and the recognition of E. coli samples belonging to each treatment. These data show significant advantages when compared to the traditional OD600 method where we can now understand biochemical changes in the system rather than a mere optical density measurement. Due to the unique experimental setup and procedure that involves indirect use of antibiotics, the same test could be used for obtaining practical information on the type, resistance, and dose of antibiotic necessary to establish the optimum diagnosis, treatment, and decontamination strategies for pathogenic and antibiotic resistant species.
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Affiliation(s)
- James Chapman
- Department of Applied Chemistry and Environmental Science, School of Science, RMIT University, Melbourne, Victoria, Australia
| | - Rebecca Orrell-Trigg
- Department of Applied Chemistry and Environmental Science, School of Science, RMIT University, Melbourne, Victoria, Australia
| | - Ki Y Kwoon
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA
| | - Vi K Truong
- Department of Applied Chemistry and Environmental Science, School of Science, RMIT University, Melbourne, Victoria, Australia.,Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA
| | - Daniel Cozzolino
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Brisbane, Queensland, Australia
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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: 79] [Impact Index Per Article: 11.3] [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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Benito-Peña E, Valdés MG, Glahn-Martínez B, Moreno-Bondi MC. Fluorescence based fiber optic and planar waveguide biosensors. A review. Anal Chim Acta 2016; 943:17-40. [PMID: 27769374 PMCID: PMC7094704 DOI: 10.1016/j.aca.2016.08.049] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 08/25/2016] [Accepted: 08/29/2016] [Indexed: 12/21/2022]
Abstract
The application of optical biosensors, specifically those that use optical fibers and planar waveguides, has escalated throughout the years in many fields, including environmental analysis, food safety and clinical diagnosis. Fluorescence is, without doubt, the most popular transducer signal used in these devices because of its higher selectivity and sensitivity, but most of all due to its wide versatility. This paper focuses on the working principles and configurations of fluorescence-based fiber optic and planar waveguide biosensors and will review biological recognition elements, sensing schemes, as well as some major and recent applications, published in the last ten years. The main goal is to provide the reader a general overview of a field that requires the joint collaboration of researchers of many different areas, including chemistry, physics, biology, engineering, and material science.
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Affiliation(s)
- Elena Benito-Peña
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain
| | - Mayra Granda Valdés
- Department of Analytical Chemistry, Faculty of Chemistry, University of La Habana, 10400 La Habana, Cuba
| | - Bettina Glahn-Martínez
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain
| | - Maria C Moreno-Bondi
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain.
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Lee I, Jun S. Simultaneous detection of E. coli K12 and S. aureus Using a Continuous Flow Multijunction Biosensor. J Food Sci 2016; 81:N1530-6. [PMID: 27096467 DOI: 10.1111/1750-3841.13307] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 03/12/2016] [Accepted: 03/20/2016] [Indexed: 11/29/2022]
Abstract
Rapid detection and identification of potentially harmful bacteria is ideal for food manufacturers to prevent foodborne illness outbreaks. Continuous monitoring method of foodborne pathogens levels and trends in food gives real-time results. Therefore, the objectives of this study were to fabricate and characterize the continuous flow multijunction biosensor for simultaneous detection of Escherichia coli K12 and Staphylococcus aureus. Junction biosensors were fabricated using gold plated tungsten wires coated with polyethylenimine and single walled carbon nanotubes. Each junction was functionalized with streptavidin and biotinylated antibodies specific to E. coli K12 and S. aureus. Then, single or 2 biosensors for each targeted analyte were connected to tubing, perpendicular to the flow direction. Pure serial diluted samples of E. coli K12 and S. aureus and microbial cocktail samples were continuously pumped at a 0.0167 mL/s into the detection zone. Changes in the electric current by biorecognition reactions between antibody and antigens were calculated. The developed junction sensor coupled with the fluidic channel showed the enhancement of the electric signal responses for detection of E. coli K12, compared to the stationary sensor. A linear regression was observed for both the E. coli and S. aureus functionalized array sensors in the detection range of 10(2) to 10(5) CFU/mL. Multiplexed detection of bacteria at the sensing levels as low as 10(2) CFU/mL for E. coli K12 and S. aureus was achieved within 2 min. Therefore, the continuous flow multijunction biosensor shows potential for rapid and continuous multiplexed detection of foodborne pathogens.
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Affiliation(s)
- Inae Lee
- Author Lee is with Dept. of Molecular Biosciences and Bioengineering, Univ. of Hawaii, Honolulu, Hawaii, 96822, U.S.A
| | - Soojin Jun
- Author Jun is with Dept. of Human Nutrition, Food, and Animal Sciences, Univ. of Hawaii, Honolulu, Hawaii, 96822, U.S.A
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Taitt CR, Anderson GP, Ligler FS. Evanescent wave fluorescence biosensors: Advances of the last decade. Biosens Bioelectron 2016; 76:103-12. [PMID: 26232145 PMCID: PMC5012222 DOI: 10.1016/j.bios.2015.07.040] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 07/15/2015] [Accepted: 07/18/2015] [Indexed: 12/12/2022]
Abstract
Biosensor development has been a highly dynamic field of research and has progressed rapidly over the past two decades. The advances have accompanied the breakthroughs in molecular biology, nanomaterial sciences, and most importantly computers and electronics. The subfield of evanescent wave fluorescence biosensors has also matured dramatically during this time. Fundamentally, this review builds on our earlier 2005 review. While a brief mention of seminal early work will be included, this current review will focus on new technological developments as well as technology commercialized in just the last decade. Evanescent wave biosensors have found a wide array applications ranging from clinical diagnostics to biodefense to food testing; advances in those applications and more are described herein.
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Affiliation(s)
- Chris Rowe Taitt
- Center for Bio/Molecular Science and Engineering, US Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC 20375-5348, USA
| | - George P Anderson
- Center for Bio/Molecular Science and Engineering, US Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC 20375-5348, USA
| | - Frances S Ligler
- UNC-Chapel Hill and NC State University Department of Biomedical Engineering, 911 Oval Drive, Raleigh, NC 27695-7115, USA.
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Gehring AG, Brewster JD, He Y, Irwin PL, Paoli GC, Simons T, Tu SI, Uknalis J. Antibody Microarray for E. coli O157:H7 and Shiga Toxin in Microtiter Plates. SENSORS 2015; 15:30429-42. [PMID: 26690151 PMCID: PMC4721727 DOI: 10.3390/s151229807] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 11/20/2015] [Accepted: 11/26/2015] [Indexed: 12/18/2022]
Abstract
Antibody microarray is a powerful analytical technique because of its inherent ability to simultaneously discriminate and measure numerous analytes, therefore making the technique conducive to both the multiplexed detection and identification of bacterial analytes (i.e., whole cells, as well as associated metabolites and/or toxins). We developed a sandwich fluorescent immunoassay combined with a high-throughput, multiwell plate microarray detection format. Inexpensive polystyrene plates were employed containing passively adsorbed, array-printed capture antibodies. During sample reaction, centrifugation was the only strategy found to significantly improve capture, and hence detection, of bacteria (pathogenic Escherichia coli O157:H7) to planar capture surfaces containing printed antibodies. Whereas several other sample incubation techniques (e.g., static vs. agitation) had minimal effect. Immobilized bacteria were labeled with a red-orange-fluorescent dye (Alexa Fluor 555) conjugated antibody to allow for quantitative detection of the captured bacteria with a laser scanner. Shiga toxin 1 (Stx1) could be simultaneously detected along with the cells, but none of the agitation techniques employed during incubation improved detection of the relatively small biomolecule. Under optimal conditions, the assay had demonstrated limits of detection of ~5.8 × 105 cells/mL and 110 ng/mL for E. coli O157:H7 and Stx1, respectively, in a ~75 min total assay time.
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Affiliation(s)
- Andrew G Gehring
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture-Northeast Area, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
| | - Jeffrey D Brewster
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture-Northeast Area, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
| | - Yiping He
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture-Northeast Area, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
| | - Peter L Irwin
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture-Northeast Area, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
| | - George C Paoli
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture-Northeast Area, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
| | - Tawana Simons
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture-Northeast Area, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
| | - Shu-I Tu
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture-Northeast Area, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
| | - Joseph Uknalis
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture-Northeast Area, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
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8
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Label-free detection of pathogenic bacteria via immobilized antimicrobial peptides. Talanta 2015; 137:55-61. [PMID: 25770606 DOI: 10.1016/j.talanta.2015.01.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 01/06/2015] [Accepted: 01/10/2015] [Indexed: 11/22/2022]
Abstract
A novel label-free strategy for the detection of bacteria was developed by using a specific antimicrobial peptide (AMP)-functionalized quartz crystal microbalance (QCM) electrode. This electrode interface was successfully applied to detect pathogenic Escherichia coli O157:H7 based on the specific affinity between the small synthetic antimicrobial peptide and the bacterial cell of pathogenic E. coli O157:H7. The concentrations of pathogenic E. coli O157:H7 were sensitively measured by the frequency response of the QCM with a detection limit of 0.4 cfu μL(-1). The detection can be fulfilled within 10 min because it does not require germiculture process. On the other hand, if the specific antimicrobial peptides were immobilized on a gold electrode, this label-free strategy can also be performed by electrochemical impedance spectroscopy (EIS). Compared with QCM technique, the EIS measurement gives a lower sensitivity and needs a longer assay time. The combination of antimicrobial peptides with the real-time responses of QCM, as well as electronic read-out monitoring of EIS, may open a new way for the direct detection of bacteria.
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Flow cytometry immunodetection and membrane integrity assessment of Escherichia coli O157:H7 in ready-to-eat pasta salad during refrigerated storage. Int J Food Microbiol 2014; 168-169:47-56. [DOI: 10.1016/j.ijfoodmicro.2013.10.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 09/25/2013] [Accepted: 10/21/2013] [Indexed: 11/24/2022]
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10
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Kim WJ, Kim S, Kim AR, Yoo DJ. Direct Detection System for Escherichia coli Using Au–Ag Alloy Microchips. Ind Eng Chem Res 2013. [DOI: 10.1021/ie3022797] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Wan-Joong Kim
- Biosensor Research Team, Electronics and Telecommunications Research Institute, Daejeon 305-700,
Republic of Korea
| | - Sanghee Kim
- Department
of Mechanical Systems Engineering, Hansung University, Seoul 136-792, Republic of Korea
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Rijal K, Mutharasan R. A method for DNA-based detection of E. coli O157:H7 in a proteinous background using piezoelectric-excited cantilever sensors. Analyst 2013; 138:2943-50. [DOI: 10.1039/c3an36814a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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12
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Ruktanonchai U, Nuchuchua O, Charlermroj R, Pattarakankul T, Karoonuthaisiri N. Signal amplification of microarray-based immunoassay by optimization of nanoliposome formulations. Anal Biochem 2012; 429:142-7. [DOI: 10.1016/j.ab.2012.07.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 07/03/2012] [Accepted: 07/07/2012] [Indexed: 10/28/2022]
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13
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Uzarski JR, Mello CM. Detection and Classification of Related Lipopolysaccharides via a Small Array of Immobilized Antimicrobial Peptides. Anal Chem 2012; 84:7359-66. [DOI: 10.1021/ac300987h] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joshua R. Uzarski
- U.S. Army Natick Solider Research, Development, and Engineering Center, Natick, Massachusetts 01760,
United States
- Chemistry and Biochemistry Department, University of Massachusetts Dartmouth, North Dartmouth,
Massachusetts 02747, United States
| | - Charlene M. Mello
- U.S. Army Natick Solider Research, Development, and Engineering Center, Natick, Massachusetts 01760,
United States
- Chemistry and Biochemistry Department, University of Massachusetts Dartmouth, North Dartmouth,
Massachusetts 02747, United States
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14
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Evaluation of a microwire sensor functionalized to detect Escherichia coli bacterial cells. Biosens Bioelectron 2012; 36:257-61. [DOI: 10.1016/j.bios.2012.04.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 04/13/2012] [Accepted: 04/17/2012] [Indexed: 11/19/2022]
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15
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Oaew S, Charlermroj R, Pattarakankul T, Karoonuthaisiri N. Gold nanoparticles/horseradish peroxidase encapsulated polyelectrolyte nanocapsule for signal amplification in Listeria monocytogenes detection. Biosens Bioelectron 2012; 34:238-43. [DOI: 10.1016/j.bios.2012.02.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 01/31/2012] [Accepted: 02/06/2012] [Indexed: 02/01/2023]
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16
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Jiang X, Wang R, Wang Y, Su X, Ying Y, Wang J, Li Y. Evaluation of different micro/nanobeads used as amplifiers in QCM immunosensor for more sensitive detection of E. coli O157:H7. Biosens Bioelectron 2011; 29:23-8. [PMID: 21862307 DOI: 10.1016/j.bios.2011.07.059] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2011] [Revised: 07/01/2011] [Accepted: 07/04/2011] [Indexed: 11/15/2022]
Abstract
Micro/nanobeads with different materials (magnetic, silica and polymer) and different sizes (diameters from 30nm to 970nm) were investigated for their use as amplifiers in a quartz crystal microbalance (QCM) immunosensor for more sensitive detection of Escherichia coli O157:H7. The micro/nanobeads were conjugated with anti-E. coli antibodies. E. coli O157:H7 cells were first captured by the first antibody immobilized on the electrode surface, and then micro/nanobeads labeled secondary antibodies attached to the cells, and finally the complexes of antibody-E. coli-antibody modified beads were formed. The results showed that antibody-labeled beads lead to signal amplification in both the change in frequency (ΔF) and the change in resistance (ΔR). Since the penetration depth of the oscillation-induced shear-waves for a ∼8MHz crystal is limited to 200nm, the interpretation of how the signal is amplified by the adsorbed particles was represented in terms of the coupled-oscillator theory. The amplification is not sensed in terms of increase in mass on the sensor surface. Amplification is sensed as a change in bacterial resonance frequency when the spheres adsorb to the bacteria. The change in the values of ΔF caused by different micro/nanobeads (amplifiers) attaching on target bacterial cells is indicative of the ratio between the resonance frequency of the absorbed bacterial-particle complex (ω(s)), and the resonance frequency of the crystal (ω).
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Affiliation(s)
- Xuesong Jiang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
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17
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Charlermroj R, Gajanandana O, Barnett C, Kirtikara K, Karoonuthaisiri N. A Chemiluminescent Antibody Array System for Detection of Foodborne Pathogens in Milk. ANAL LETT 2011. [DOI: 10.1080/00032719.2010.511736] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Sidari R, Caridi A. Methods for Detecting EnterohaemorrhagicEscherichia Coliin Food. FOOD REVIEWS INTERNATIONAL 2011. [DOI: 10.1080/87559129.2010.535232] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Arya SK, Singh A, Naidoo R, Wu P, McDermott MT, Evoy S. Chemically immobilized T4-bacteriophage for specific Escherichia coli detection using surface plasmon resonance. Analyst 2010; 136:486-92. [PMID: 21079850 DOI: 10.1039/c0an00697a] [Citation(s) in RCA: 130] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bioassay platform using T4 bacteriophage (T4) as the specific receptor and surface plasmon resonance (SPR) as the transduction technique has been developed for the detection of Escherichia coli K12 bacteria. The T4 phages have been covalently immobilized onto gold surfaces using a self-assembled monolayer of dithiobis(succinimidyl propionate) (DTSP). Substrates of BSA/EA-T4/DTSP/Au prepared using different T4 phage concentrations have been characterized using scanning electron microscopy (SEM). The studies reveal that the use of DTSP results in a uniform binding of T4 phages onto the surface. The SPR analysis demonstrates that these BSA/EA-T4/DTSP/Au interfaces can detect the E. coli K12 with high specificity against non-host E. coli NP10 and NP30. Results of SEM and SPR studies indicate that the maximum host bacterial capture is obtained when 1.5 × 10(11) pfu ml(-1) concentration of T4 phages was used for immobilization. The surface of these chemically anchored phage substrates can be regenerated for repeated detection of E. coli K12 and can be used for detection in 7 × 10(2) to 7 × 10(8) cfu ml(-1) range. The results of these studies have implications for the development of online bioassays for the detection of various food and water borne pathogens using the inherent selectivity of bacteriophage recognition.
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Affiliation(s)
- Sunil K Arya
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada.
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20
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Kim GY, Son A. Development and characterization of a magnetic bead-quantum dot nanoparticles based assay capable of Escherichia coli O157:H7 quantification. Anal Chim Acta 2010; 677:90-6. [DOI: 10.1016/j.aca.2010.07.046] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Revised: 07/27/2010] [Accepted: 07/28/2010] [Indexed: 10/19/2022]
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21
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Davis R, Irudayaraj J, Reuhs BL, Mauer LJ. Detection of E. coli O157:H7 from Ground Beef Using Fourier Transform Infrared (FT-IR) Spectroscopy and Chemometrics. J Food Sci 2010; 75:M340-6. [DOI: 10.1111/j.1750-3841.2010.01686.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Chang CC, Chiu NF, Lin DS, Chu-Su Y, Liang YH, Lin CW. High-sensitivity detection of carbohydrate antigen 15-3 using a gold/zinc oxide thin film surface plasmon resonance-based biosensor. Anal Chem 2010; 82:1207-12. [PMID: 20102177 DOI: 10.1021/ac901797j] [Citation(s) in RCA: 119] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We report that gold/zinc oxide (Au/ZnO) nanocomposite films were effectively employed to enhance the performance of surface plasmon resonance (SPR) for the detection of tumor markers. Carbohydrate antigen 15.3 (CA15-3), a tumor marker for breast cancer, was chosen as a model analyte. We analyzed intensity response to the samples at various concentrations (0.0125 U/mL to 160 U/mL) in pleural fluid to evaluate the detection capability of the SPR biosensor based on Au/ZnO thin films. The linear range extended from 1 to 40 U/mL with a correlation coefficient of R(2) = 0.991 and a limit of detection reaching 0.025 U/mL at a signal-to-noise ratio of 3:1. Compared with the degree of the shift in SPR intensity induced by the specific binding event between antibody and antigen, the change of intensity on the Au/ZnO layers was increased by at least 2 fold over that on the gold/chromium (Au/Cr) layers. In addition, we determined that the Au/ZnO layers allowed for a detection limit 4 times lower than the Au/Cr layers, which are in widespread use as the sensing interfaces in current SPR-based detectors. In conclusion, the use of Au/ZnO films greatly enhanced the SPR signal yield for this bimolecular interaction and showed high sensitivity.
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Affiliation(s)
- Chia-Chen Chang
- Institute of Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan
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Rapid detection of pathogens using antibody-coated microbeads with bioluminescence in microfluidic chips. Biomed Microdevices 2010; 12:683-91. [DOI: 10.1007/s10544-010-9421-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Langer J, Langer K, Barczyński P, Warchoł J, Bartkowiak K. New “ON-OFF”-type nanobiodetector. Biosens Bioelectron 2009; 24:2947-9. [DOI: 10.1016/j.bios.2009.02.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2008] [Revised: 02/18/2009] [Accepted: 02/20/2009] [Indexed: 11/16/2022]
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Golden JP, Sapsford KE. Fluoroimmunoassays using the NRL array biosensor. Methods Mol Biol 2009; 503:273-292. [PMID: 19151947 DOI: 10.1007/978-1-60327-567-5_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Array-based biosensor technology offers the user the ability to detect and quantify multiple targets in multiple samples simultaneously (Analytical Sciences 23:5-10, 2007). The NRL Array Biosensor has been developed with the aim of creating a system for sensitive, rapid, on-site screening for multiple targets of interest. This system is fluorescence-based, using evanescent illumination of a waveguide, and has demonstrated the use of both sandwich and competitive immunoassays for the detection of both high and low molecular weight targets, respectively. The current portable, automated system has demonstrated detection of a wide variety of analytes ranging from simple chemical compounds to entire bacterial cells, with applications in food safety, disease diagnosis, homeland security and environmental monitoring.
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Affiliation(s)
- Joel P Golden
- Center for Bio/Molecular Science & Engineering, US Naval Research Laboratory, Washington, DC, USA
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27
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Sensing bacteria but treating them well: Determination of optimal incubation and storage conditions. Anal Biochem 2008; 383:68-75. [DOI: 10.1016/j.ab.2008.08.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2008] [Revised: 08/06/2008] [Accepted: 08/06/2008] [Indexed: 11/17/2022]
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Wolter A, Niessner R, Seidel M. Detection of Escherichia coli O157:H7, Salmonella typhimurium, and Legionella pneumophila in Water Using a Flow-Through Chemiluminescence Microarray Readout System. Anal Chem 2008; 80:5854-63. [DOI: 10.1021/ac800318b] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anne Wolter
- Institute of Hydrochemistry and Chair for Analytical Chemistry, Technische Universität München, Marchioninistrasse 17, D-81377 München, Germany
| | - Reinhard Niessner
- Institute of Hydrochemistry and Chair for Analytical Chemistry, Technische Universität München, Marchioninistrasse 17, D-81377 München, Germany
| | - Michael Seidel
- Institute of Hydrochemistry and Chair for Analytical Chemistry, Technische Universität München, Marchioninistrasse 17, D-81377 München, Germany
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Gehring AG, Albin DM, Reed SA, Tu SI, Brewster JD. An antibody microarray, in multiwell plate format, for multiplex screening of foodborne pathogenic bacteria and biomolecules. Anal Bioanal Chem 2008; 391:497-506. [PMID: 18389224 DOI: 10.1007/s00216-008-2044-6] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2008] [Revised: 02/29/2008] [Accepted: 02/29/2008] [Indexed: 11/30/2022]
Abstract
Intoxication and infection caused by foodborne pathogens are important problems worldwide, and screening tests for multiple pathogens are needed because foods may be contaminated with multiple pathogens and/or toxic metabolites. We developed a 96-well microplate, multiplex antibody microarray method to simultaneously capture and detect Escherichia coli O157:H7 and Salmonella enterica serovar Typhimurium (S. typhimurium), as well as a biomolecule (chicken immunoglobulin G or IgG employed as a proteinaceous toxin analog) in a single sample. Microarrayed spots of capture antibodies against the targeted analytes were printed within individual wells of streptavidin-coated polystyrene 96-multiwell microtiter plates and a sandwich assay with fluorescein- or Cy3-labeled reporter antibodies was used for detection. (Printing was achieved with a conventional microarray printing robot that was operated with custom-developed microplate arraying software.) Detection of the IgG was realized from ca. 5 to 25 ng/mL, and detection of E. coli O157:H7 and S. typhimurium was realized from ca. 10(6) to 10(9) and ca. 10(7) to 10(9) cells/mL, respectively. Multiplex detection of the two bacteria and the IgG in buffer and in culture-enriched ground beef filtrate was established with a total assay (including detection) time of ca. 2.5 h. Detection of S. typhimurium was largely unaffected by high concentrations of the other bacteria and IgG as well as the ground beef filtrate, whereas a small decrease in response was observed for E. coli O157:H7. The multiwell plate, multiplex antibody microarray platform developed here demonstrates a powerful approach for high-throughput screening of large numbers of food samples for multiple pathogens and toxins.
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Affiliation(s)
- Andrew G Gehring
- Microbial Biophysics and Residue Chemistry Research Unit, United States Department of Agriculture-Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, PA 19038, USA.
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Shriver‐Lake LC, Erickson JS, Sapsford KE, Ngundi MM, Shaffer KM, Kulagina NV, Hu JE, Gray SA, Golden JP, Ligler FS, Taitt CR. Blind Laboratory Trials for Multiple Pathogens in Spiked Food Matrices. ANAL LETT 2007. [DOI: 10.1080/00032710701672798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Simpson-Stroot JM, Kearns EA, Stroot PG, Magaña S, Lim DV. Monitoring biosensor capture efficiencies: development of a model using GFP-expressing Escherichia coli O157:H7. J Microbiol Methods 2007; 72:29-37. [PMID: 18096260 DOI: 10.1016/j.mimet.2007.11.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2007] [Revised: 11/09/2007] [Accepted: 11/09/2007] [Indexed: 11/15/2022]
Abstract
One of the known limitations for biosensor assays is the high limit of detection for target cells within complex samples (e.g., Escherichia coli at 10(4) to 10(5) CFU/mL) due to poor capture efficiencies. Currently, researchers can only estimate the cell capture efficiency necessary to produce a positive signal for any type of biosensor using either cumbersome techniques or regression modeling. To solve this problem, green fluorescent protein (GFP) transformed E. coli O157:H7 was used to develop a novel method for directly and easily measuring the cell capture efficiency of any given biosensor platform. For demonstration purposes, E. coli-GFP was assayed on both fiber optic and planar waveguide biosensor platforms. Cells were enumerated using an epifluorescent microscope and digital camera to determine the number of cells captured on the surfaces. Conversion algorithms were used with these digital images to determine the cell density of entire waveguide surface areas. For E. coli-GFP, the range of cell capture efficiency was between 0.4 and 1.2%. This indicates that although the developed model works for calculating cell capture, there is still need for significant improvements in capture methods themselves, to increase the capture efficiency and thereby lower detection limits. The use of GFP-transformed target cells and cell capture efficiency calculations can facilitate the development and optimization processes by allowing direct enumeration of new biosensor design configurations and sample processing strategies.
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Affiliation(s)
- Joyce M Simpson-Stroot
- Division of Cell Biology, Microbiology, and Molecular Biology, Department of Biology, University of South Florida, Tampa, FL 33620-5200, USA.
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Maraldo D, Mutharasan R. Preparation-free method for detecting Escherichia coli O157:H7 in the presence of spinach, spring lettuce mix, and ground beef particulates. J Food Prot 2007; 70:2651-5. [PMID: 18044451 DOI: 10.4315/0362-028x-70.11.2651] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We show the detection of 100 cells per ml of Escherichia coli O157:H7 in the presence of spinach, spring lettuce mix, and ground beef washes and particulate matter with piezoelectric-excited millimeter-sized cantilever (PEMC) sensors. The PEMC sensors (sensing area, 2 mm2) were immobilized with polyclonal antibody specific to E. coli O157:H7 (EC) and were exposed to 10 aqueous washes of locally purchased spinach, spring lettuce mix, and ground beef for testing if EC was present. Absence of resonance frequency shift indicated that EC was not present in the 30 samples tested. Following the last sample in each food matrix, 1,000 cells per ml of EC were spiked into the sample container, and resonance frequency change was monitored. The total resonance frequency change was 880 +/- 5, 1,875 +/- 8, and 1,417 +/- 4 Hz for spinach, spring lettuce mix, and ground beef, respectively. A mixture of the three food matrices spiked with 100 cells per ml of EC gave a sensor response of 260 +/- 15 Hz. The resonance frequency changes are approximately 40% lower than our previously reported study on ground beef. It is suggested that the reduction in sensitivity is due to differences in pathogen adherence to food matrices, which affects target binding to the sensor surface. We conclude that detection selectivity is conserved in the three food matrices examined and that the magnitude of sensor response is a function of the food matrix.
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Affiliation(s)
- David Maraldo
- Department of Chemical Engineering, Drexel University, Philadelphia, Pennsylvania 19104, USA
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