1
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Khachornsakkul K, Zeng W, Sonkusale S. Distance-based paper analytical devices integrated with molecular imprinted polymers for Escherichia coli quantification. Mikrochim Acta 2024; 191:253. [PMID: 38592400 DOI: 10.1007/s00604-024-06332-1] [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: 02/14/2024] [Accepted: 03/24/2024] [Indexed: 04/10/2024]
Abstract
The development of distance-based paper analytical devices (dPADs) integrated with molecularly imprinted polymers (MIPs) to monitor Escherichia coli (E. coli) levels in food samples is presented. The fluidic workflow on the device is controlled using a designed hydrophilic bridge valve. Dopamine serves as a monomer for the formation of the E. coli-selective MIP layer on the dPADs. The detection principle relies on the inhibition of the E. coli toward copper (II) (Cu2+)-triggered oxidation of o-phenylenediamine (OPD) on the paper substrate. Quantitative detection is simply determined through visual observation of the residual yellow color of the OPD in the detection zone, which is proportional to E. coli concentration. The sensing exhibits a linear range from 25.0 to 1200.0 CFU mL-1 (R2 = 0.9992) and a detection limit (LOD) of 25.0 CFU mL-1 for E. coli detection. Additionally, the technique is highly selective with no interference even from the molecules that have shown to react with OPD to form oxidized OPD. The developed device demonstrates accuracy and precision for E. coli quantification in food samples with recovery percentages between 98.3 and 104.7% and the highest relative standard deviation (RSD) of 4.55%. T-test validation shows no significant difference in E. coli concentration measured between our method and a commercial assay. The proposed dPAD sensor has the potential for selective and affordable E. coli determination in food samples without requiring sample preparation. Furthermore, this strategy can be extended to monitor other molecules for which MIP can be developed and integrated into paper-microfluidic platform.
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Affiliation(s)
- Kawin Khachornsakkul
- Department of Electrical and Computer Engineering, Tufts University, Medford, MA, 02155, USA.
- Nano Lab, Tufts University, Medford, MA, 02155, USA.
| | - Wenxin Zeng
- Department of Electrical and Computer Engineering, Tufts University, Medford, MA, 02155, USA
- Nano Lab, Tufts University, Medford, MA, 02155, USA
| | - Sameer Sonkusale
- Department of Electrical and Computer Engineering, Tufts University, Medford, MA, 02155, USA.
- Nano Lab, Tufts University, Medford, MA, 02155, USA.
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2
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Sidhu AK, Patil SN, Gaikwad VB. Direct binding and characterization of laccase onto iron oxide nanoparticles. NANOTECHNOLOGY 2024; 35:235101. [PMID: 38364270 DOI: 10.1088/1361-6528/ad2a02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
Iron oxide nanoparticles (IONPs) exhibit unique magnetic properties and possess a high surface-to-volume ratio, making them ideal candidates for the conjugation of substances, including enzymes. Laccase (EC 1.10.3.2), an oxidative enzyme with diverse applications, presents an opportunity for enhancing stability and reusability through innovative immobilization techniques, thus reducing overall process costs. In this study, we employed a direct binding procedure via carbodiimide activation to conjugate laccase onto IONPs synthesized using thermal chemical coprecipitation. Stabilization of the nanoparticles was achieved using thioglycerol and polyvinyl alcohol (PVA) as capping agents. Characterization of the synthesized nanoparticles was conducted using UV-spectroscopy, Fourier transform infrared spectroscopy (FTIR), x-ray diffraction, scanning electron microscopy, and energy dispersive x-ray spectroscopy. FTIR spectroscopy analysis confirmed successful laccase binding to magnetic nanoparticles, with binding efficiencies of 90.65% and 73.02% observed for thioglycerol and PVA capped IONPs, respectively. Furthermore, the conjugated enzyme exhibited remarkable stability, retaining nearly 50% of its initial activity after 20 reuse cycles. This research demonstrates that immobilizing laccase onto IONPs enhances its activity, stability, and reusability, with the potential for significant cost savings and expanded applications in various fields.
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Affiliation(s)
- Amanpreet K Sidhu
- Assistant Professor, Department of Biotechnology, Khalsa College, Amritsar, Punjab, India
| | - Sucheta N Patil
- Professor, Department of Microbiology, K.T.H.M College, Nashik, Maharashtra, India
| | - Vishwas B Gaikwad
- Regional Director, Yashwantrao Chavan Maharashtra Open University, Nashik, Maharashtra, India
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3
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Rodoplu Solovchuk D, Boyaci IH, Tamer U, Sahiner N, Cetin D. A simple gradient centrifugation method for bacteria detection in skim milk. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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4
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Kaladari F, Kishikawa N, Shimada A, El-Maghrabey M, Kuroda N. Anthracycline-Functionalized Dextran as a New Signal Multiplication Tagging Approach for Immunoassay. BIOSENSORS 2023; 13:340. [PMID: 36979552 PMCID: PMC10046591 DOI: 10.3390/bios13030340] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/21/2023] [Accepted: 03/02/2023] [Indexed: 06/18/2023]
Abstract
The most used kind of immunoassay is enzyme-linked immunosorbent assay (ELISA); however, enzymes suffer from steric effects, low stability, and high cost. Our research group has been developing quinone-linked immunosorbent assay (QuLISA) as a new promising approach for stable and cost-efficient immunoassay. However, the developed QuLISA suffered from low water-solubility of synthesized quinone labels and their moderate sensitivity. Herein, we developed a new approach for signal multiplication of QuLISA utilizing the water-soluble quinone anthracycline, doxorubicin, coupled with dextran for signal multiplication. A new compound, Biotin-DexDox, was prepared in which doxorubicin was assembled on oxidized dextran 40, and then it was biotinylated. The redox-cycle-based chemiluminescence and the colorimetric reaction of Biotin-DexDox were optimized and evaluated, and they showed very good sensitivity down to 0.25 and 0.23 nM, respectively. Then, Biotin-DexDox was employed for the detection of biotinylated antibodies utilizing avidin as a binder and a colorimetric assay of the formed complex through its contained doxorubicin redox reaction with NaBH4 and imidazolium salt yielding strong absorbance at 510 nm. The method could detect the plate-fixed antibody down to 0.55 nM. Hence, the application of Biotin-DexDox in QuLISA was successfully demonstrated and showed a significant improvement in its sensitivity and applicability to aqueous assays.
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Affiliation(s)
- Fatema Kaladari
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Naoya Kishikawa
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Ai Shimada
- School of Pharmaceutical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Mahmoud El-Maghrabey
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Naotaka Kuroda
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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5
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Sánchez-Trasviña C, Galindo-Estrada JD, Tinoco-Valencia R, Serrano-Carreón L, Rito-Palomares M, Willson RC, Mayolo-Deloisa K. Laccase-luminol chemiluminescence system: an investigation of substrate inhibition. LUMINESCENCE 2023; 38:341-349. [PMID: 36760184 DOI: 10.1002/bio.4460] [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: 11/09/2022] [Revised: 01/31/2023] [Accepted: 02/05/2023] [Indexed: 02/11/2023]
Abstract
Chemiluminescence (CL) reactions are widely used for the detection and quantification of many types of analytes. Laccase has previously been proposed in CL reactions; however, its light emission behaviour has not been characterized. This study was conducted to characterize the laccase-luminol system, determine its kinetic parameters, and analyze the effects of protein and OH- concentration on the CL signal. Laccase from Coriolopsis gallica was combined with different concentrations of luminol (125 nM to 4 mM), and the enzyme kinetics were evaluated using diverse kinetic models. The laccase-luminol system was able to produce CL without an intermediate molecule, but it exhibited substrate-inhibition behaviour. A two-site random model was used and suggested that when the first luminol molecule was bound to the active site, laccase affinity for the second luminol molecule was increased. This inhibition effect could be avoided using a low luminol concentration. At 5 μM luminol concentration, 1 mg/ml (0.13 U) laccase is needed to achieve nearly 90% of the maximum CL signal, suggesting that the available luminol could not bind to all active sites. Furthermore, the concentration of NaOH negatively affected the CL signal. The laccase-luminol system represents an alternative to existing CL systems, with potential uses in molecular detection and quantification.
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Affiliation(s)
- Calef Sánchez-Trasviña
- Tecnologico de Monterrey, The Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, Monterrey, NL, Mexico.,Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Av. Eugenio Garza Sada 2501 Sur, Monterrey, NL, Mexico
| | - José Daniel Galindo-Estrada
- Universidad Politécnica del Valle de Toluca, Carretera Toluca-Almoloya de Juárez km. 5.6, Almoloya de Juárez, Estado de México, Mexico
| | - Raunel Tinoco-Valencia
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, Cuernavaca, Morelos, Mexico
| | - Leobardo Serrano-Carreón
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, Cuernavaca, Morelos, Mexico
| | - Marco Rito-Palomares
- Tecnologico de Monterrey, The Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, Monterrey, NL, Mexico.,Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Av. Morones Prieto 3000 Pte, Monterrey, NL, Mexico
| | - Richard C Willson
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Av. Morones Prieto 3000 Pte, Monterrey, NL, Mexico.,Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, USA
| | - Karla Mayolo-Deloisa
- Tecnologico de Monterrey, The Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, Monterrey, NL, Mexico.,Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Av. Eugenio Garza Sada 2501 Sur, Monterrey, NL, Mexico.,Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, Spain
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6
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CuFe2O4 magnetic particles assisted construction of a label-free fluorescent sensor for detection of Escherichia coli. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Recent advances in optical biosensors for specific detection of E. coli bacteria in food and water. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108822] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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8
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Ghayyem S, Faridbod F. Detection of pathogenic bacteria in milk and whey samples using a fluorescence resonance energy transfer aptasensor based on cerium oxide nanoparticles. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:813-819. [PMID: 35138313 DOI: 10.1039/d1ay02023d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Herein, we present a facile and sensitive fluorescence resonance energy transfer (FRET) aptasensor for the detection of pathogenic bacteria, where antibiotic-functionalized cerium oxide nanoparticles were served as an energy donor and aptamer-modified gold nanoparticles (aptamer-AuNPs) were employed as an energy acceptor. To illustrate the feasibility of this strategy, Escherichia coli (E. coli) was examined. The strategy for the detection of E. coli bacteria as a target molecule is described using the FRET pair of azithromycin-functionalized CeO2 nanoparticles (Azm-CeO2NPs) and aptamer-AuNPs. The spectral overlap between these two nanoparticles and Azm and the aptamer binding on the surface of E. coli specifically provides the condition, which leads to the occurrence of the FRET phenomenon. In this way, a good linear correlation between the fluorescence intensity of Azm-CeO2NPs and E. coli concentration was obtained in the range of 10-1.5 × 105 cfu mL-1. The detection limit of the proposed method at a signal to noise ratio of 3 (3σ) was estimated to be 1.04 cfu mL-1. Further, the proposed method was applied to detect E. coli in real samples within 30 min, which indicates the applicability of the proposed method. This method could be used for other pathogenic bacterium recognition or synchronous detection by employing molecules that are particular to the desired bacteria.
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Affiliation(s)
- Sena Ghayyem
- Center of Excellence in Electrochemistry, Department of Analytical Chemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
| | - Farnoush Faridbod
- Center of Excellence in Electrochemistry, Department of Analytical Chemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
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9
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Zhang Y, Hu X, Wang Q, Zhang Y. Recent advances in microchip-based methods for the detection of pathogenic bacteria. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.11.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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10
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Modern Analytical Techniques for Detection of Bacteria in Surface and Wastewaters. SUSTAINABILITY 2021. [DOI: 10.3390/su13137229] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Contamination of surface waters with pathogens as well as all diseases associated with such events are a significant concern worldwide. In recent decades, there has been a growing interest in developing analytical methods with good performance for the detection of this category of contaminants. The most important analytical methods applied for the determination of bacteria in waters are traditional ones (such as bacterial culturing methods, enzyme-linked immunoassay, polymerase chain reaction, and loop-mediated isothermal amplification) and advanced alternative methods (such as spectrometry, chromatography, capillary electrophoresis, surface-enhanced Raman scattering, and magnetic field-assisted and hyphenated techniques). In addition, optical and electrochemical sensors have gained much attention as essential alternatives for the conventional detection of bacteria. The large number of available methods have been materialized by many publications in this field aimed to ensure the control of water quality in water resources. This study represents a critical synthesis of the literature regarding the latest analytical methods covering comparative aspects of pathogen contamination of water resources. All these aspects are presented as representative examples, focusing on two important bacteria with essential implications on the health of the population, namely Pseudomonas aeruginosa and Escherichia coli.
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11
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Huang F, Zhang Y, Lin J, Liu Y. Biosensors Coupled with Signal Amplification Technology for the Detection of Pathogenic Bacteria: A Review. BIOSENSORS 2021; 11:190. [PMID: 34207580 PMCID: PMC8227973 DOI: 10.3390/bios11060190] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/04/2021] [Accepted: 06/06/2021] [Indexed: 12/18/2022]
Abstract
Foodborne disease caused by foodborne pathogens is a very important issue in food safety. Therefore, the rapid screening and sensitive detection of foodborne pathogens is of great significance for ensuring food safety. At present, many research works have reported the application of biosensors and signal amplification technologies to achieve the rapid and sensitive detection of pathogenic bacteria. Thus, this review summarized the use of biosensors coupled with signal amplification technology for the detection of pathogenic bacteria, including (1) the development, concept, and principle of biosensors; (2) types of biosensors, such as electrochemical biosensors, optical biosensors, microfluidic biosensors, and so on; and (3) different kinds of signal amplification technologies applied in biosensors, such as enzyme catalysis, nucleic acid chain reaction, biotin-streptavidin, click chemistry, cascade reaction, nanomaterials, and so on. In addition, the challenges and future trends for pathogenic bacteria based on biosensor and signal amplification technology were also discussed and summarized.
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Affiliation(s)
- Fengchun Huang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
| | - Yingchao Zhang
- College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China; (Y.Z.); (J.L.)
| | - Jianhan Lin
- College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China; (Y.Z.); (J.L.)
| | - Yuanjie Liu
- College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China; (Y.Z.); (J.L.)
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12
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Wang K, Wang Z, Zeng H, Luo X, Yang T. Advances in Portable Visual Detection of Pathogenic Bacteria. ACS APPLIED BIO MATERIALS 2020; 3:7291-7305. [PMID: 35019472 DOI: 10.1021/acsabm.0c00984] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Food safety and regulation of consumer welfare are of great concern, so it is necessary to be able to detect pathogenic bacteria quickly and effectively. Although traditional methods of pathogen detection are reliable and widely used, the detection and analysis processes are cumbersome and time-consuming, which is not conducive to fast assays in the field. New detection strategies have emerged in recent years, especially point-of-care testing (POCT) methods, which do not rely on the laboratory and have become an important development direction for pathogen detection. Many visual detection schemes have been developed that integrate portable glucose meters (PGMs), test strips, smartphones, and other portable devices. Importantly, portable and ultrasensitive biosensors have vast promise in detecting pathogens, as they can be suitable tools for clinical diagnosis and the regulation of food safety. This Review focuses on the latest advances in portable device-based methods for visual detection of pathogens, evaluating their advantages and disadvantages.
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Affiliation(s)
- Kuiyu Wang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
| | - Zhenhao Wang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
| | - Hui Zeng
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
| | - Xiliang Luo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Tao Yang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
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13
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Bu SJ, Wang KY, Liu X, Ma L, Wei HG, Zhang WG, Liu WS, Wan JY. Ferrocene-functionalized nanocomposites as signal amplification probes for electrochemical immunoassay of Salmonella typhimurium. Mikrochim Acta 2020; 187:600. [PMID: 33034762 DOI: 10.1007/s00604-020-04579-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 09/29/2020] [Indexed: 02/07/2023]
Abstract
An electrochemical immunosensor based on ferrocene (Fc)-functionalized nanocomposites was fabricated as an efficient electroactive signal probe to amplify electrochemical signals for Salmonella typhimurium detection. The electrochemical signal amplification probe was constructed by encapsulating ferrocene into S. typhimurium-specific antimicrobial peptides Magainin I (MI)-Cu3(PO4)2 organic-inorganic nanocomposites (Fc@MI) through a one-step process. Magnetic beads (MBs) coupled with antibody were used as capture ingredient for target magnetic separation, and Fc@MI nanoparticles were used as signal labels in the immunoassays. The sandwich of MBs-target-Fc@MI assay was performed using a screen-printed carbon electrode as transducer surface. The immunosensor platform presents a low limit of detection (LOD) of 3 CFU·mL-1 and a linear range from 10 to 107 CFU·mL-1, with good specificity and precision, and was successfully applied for S. typhimurium detection in milk. Graphical abstract One-pot process antimicrobial peptides Magainin I-Cu3(PO4)2 organic-inorganic nanocomposites (Fc@MI) were used as ideal electrochemical signal label, integrating both essential functions of biological recognition and signal amplification. Screen-printed carbon electrode (SPCE) was used as the electrochemical system for Salmonella typhimurium detection.
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Affiliation(s)
- Sheng-Jun Bu
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China
| | - Kui-Yu Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China.,Southern Laboratory of Ocean Science and Engineering, School of Chemical Engineering and Technology, Sun Yat-sen University, Guangzhou, 519082, Guangdong, China
| | - Xiu Liu
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China
| | - Li Ma
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China
| | - Hong-Guo Wei
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China
| | - Wen-Guang Zhang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China
| | - Wen-Sen Liu
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China.
| | - Jia-Yu Wan
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China.
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14
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Qin Y, Wu G, Guo Y, Ke D, Yin J, Wang D, Fan X, Liu Z, Ruan L, Hu Y. Engineered glyphosate oxidase coupled to spore-based chemiluminescence system for glyphosate detection. Anal Chim Acta 2020; 1133:39-47. [PMID: 32993872 DOI: 10.1016/j.aca.2020.07.077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 10/23/2022]
Abstract
The extensive and intensive utilization of glyphosate (Glyp) caused public concerns on the potential risk of environment and health resulted from the chemical residues. Therefore, the development of a high-selective, low-cost and easy-operation Glyp detection methods is highly desired. Screening highly selective enzymes by directed evolution is important in practical applications. Herein, a glyphosate oxidase (GlypO) preferring substrate Glyp to produce H2O2 was obtained via directed evolution from glycine oxidase obtained from Bacillus cereus (BceGO). The catalytic efficiency, specificity constant, and affinity enhancement factor of GlypO toward Glyp were increased by 2.85 × 103-fold; 2.25 × 105-fold; and 9.64 × 104-fold, respectively, compared with those of BceGO. The catalytic efficiency toward glycine decreased by 78.60-fold. The spores of Bacillus subtilis (B. subtilis) effectively catalyzed luminol-H2O2 reaction to create excellent chemiluminescence (CL) signal because CotA-laccase exists on their surface. Based on these findings, a new CL biosensor via coupling to biological reaction system was presented for Glyp detection. The CL biosensor exhibited several advantages, such as eco-friendliness, low cost, high selectivity and sensitivity, and good practical application prospects for environmental pollution control.
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Affiliation(s)
- Yuqing Qin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Gaobing Wu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yiming Guo
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Da Ke
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jiakang Yin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Donglin Wang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xuezhu Fan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ziduo Liu
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Lifang Ruan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Yonggang Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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15
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Zhao Y, Bu S, Wang C, Ma C, Li Z, Zhang W, Wan J. Dual Aptamer-Copper (II) Phosphate Nanocomposite-Based Point-of-Care Biosensor for the Determination of Escherichia coli O157:H7 through Pressure Monitoring with a Hand-Held Barometer. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1817059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yinghao Zhao
- Laboratory of Pathogenic Microbiology and Immunology, College of Life Science, Jilin Agricultural University, Changchun, China
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Shengjun Bu
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Chengyu Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Chengyou Ma
- College of Geo-Exploration Science and Technology, Jilin University, Changchun, China
| | - Zhongyi Li
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Wenhui Zhang
- Laboratory of Pathogenic Microbiology and Immunology, College of Life Science, Jilin Agricultural University, Changchun, China
| | - Jiayu Wan
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
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16
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Leng Y, Bu S, Li Z, Hao Z, Ma C, He X, Wan J. A Colorimetric Immunosensor Based on Hemin@MI Nanozyme Composites, with Peroxidase-like Activity for Point-of-care Testing of Pathogenic E. coli O157:H7. ANAL SCI 2020; 37:941-947. [PMID: 32893249 DOI: 10.2116/analsci.20p081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Recently, nanozymes have become a topic of particular interest due to their high activity level, stability and biocompatibility. In this study, a visual, sensitive and selective point-of-care immunosensor was established to test the pathogen Escherichia coli O157:H7 (E. coli O157:H7). Hemin and magainin I (MI) hybrid nanocomposites (Hemin@MI) with peroxidase-mimicking activities were synthesized via a "one-pot" method, involving the simple mixing of an antimicrobial peptide (MI) against E. coli O157:H7 and hemin in a copper sulfate sodium phosphate saline buffer. Hemin@MI nanocomposites integrating target recognition and signal amplification were developed as signal probes for the point-of-care colorimetric detection of pathogenic E. coli O157:H7. Hemin@MI nanocomposites exhibit excellent peroxidase activity for the chromogenic reaction of ABTS, which allows for the visual point-of-care testing of E. coli O157:H7 in the range of 102 to 108 CFU/mL, with a limit of detection of 85 CFU/mL. These data suggest this immunosensor provides accessible and portable assessments of pathogenic E. coli O157:H7 in real samples.
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Affiliation(s)
- Yan Leng
- School of Life Science and Technology, Changchun University of Science and Technology.,Institute of Military Veterinary, Academy of Military Medical Sciences
| | - Shengjun Bu
- Institute of Military Veterinary, Academy of Military Medical Sciences
| | - Zhongyi Li
- Institute of Military Veterinary, Academy of Military Medical Sciences
| | - Zhuo Hao
- Institute of Military Veterinary, Academy of Military Medical Sciences
| | - Chengyou Ma
- College of Geo-Exploration Science and Technology, Jilin University
| | - Xiuxia He
- School of Life Science and Technology, Changchun University of Science and Technology
| | - Jiayu Wan
- Institute of Military Veterinary, Academy of Military Medical Sciences
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17
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Wang X, Chen W, Yang H, Zhang X, Deng M, Zhou X, Huang K, Chen P, Ying B. Multimode detection of β-glycosidase and pathogenic bacteria via cation exchange assisted signal amplification. Mikrochim Acta 2020; 187:453. [PMID: 32681310 DOI: 10.1007/s00604-020-04442-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 07/08/2020] [Indexed: 02/05/2023]
Abstract
A rapid strategy for the β-glycosidase (β-Gal) and Escherichia coli (E. coli) sensing is presented, which is based on selective recognition reactions of QDs using visualization/fluorescence (FL)/atomic fluorescence spectrometry (AFS)/inductively coupled plasma mass spectrometry (ICP-MS) multimode assay. CdTe QDs can selectively recognize Ag+ and Ag NPs with a cation exchange reaction (CER) where Ag+ triggers the release of Cd2+ and quenches the fluorescence signal of QDs. Taking advantage of the fact that β-Gal can hydrolyze 4-Aminophenyl β-D-galactopyranoside (PAPG) to produce p-aminophenol (PAP), which has the ability to reduce Ag+ to form Ag NPs. The β-Gal can be easily detected by visualization or FL in a turn-on manner. Furthermore, combining with the selective separation of Cd2+ by filter membrane, AFS and ICP-MS with higher sensitivity were used for the determination of the enzyme. Under optimized conditions, the system limits of detections (LODs) were 0.01 U/L, 0.03 mU/L, and 0.02 mU/L using FL, AFS, and ICP-MS as the detector, respectively. The relative standard deviations (RSDs, n = 7) for 0.1 U/L β-Gal were 2.2, 2.0, and 1.3% using FL/AFS/ICP-MS as the detector, respectively. And 0.1 U/L of β-Gal can be discriminated from the blank solution with the naked eye. In addition, given that the β-Gal can serve as an indicator of E. coli, we have successfully applied this strategy for the detection of E. coli with a LOD of 25 CFU/mL. Application of the method was demonstrated by analyzing human urine samples and milk samples for ultra-trace detection of E. coli. Graphical abstract The CVG-AFS/ICP-MS/visual/FL multimode β-Gal and E.coli detection via CER.
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Affiliation(s)
- Xiu Wang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, 610068, Sichuan, China
| | - Wanli Chen
- College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637000, China
| | - Haiyan Yang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, 610068, Sichuan, China
| | - Xialin Zhang
- Interdisciplinary Nanoscience Center, Aarhus University, 8000, Aarhus C, Denmark
| | - Min Deng
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, 610068, Sichuan, China
| | - Xingyue Zhou
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, 610068, Sichuan, China
| | - Ke Huang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, 610068, Sichuan, China.
| | - Piaopiao Chen
- Department of Laboratory Medicine, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China.
| | - Binwu Ying
- Department of Laboratory Medicine, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China.
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18
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Duan M, Xiao X, Huang Y, Li G, Shan S, Lv X, Zhou H, Peng S, Liu C, Liu D, Lai W. Immuno-HCR based on contact quenching and fluorescence resonance energy transfer for sensitive and low background detection of Escherichia coli O157:H7. Food Chem 2020; 334:127568. [PMID: 32712489 DOI: 10.1016/j.foodchem.2020.127568] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 05/10/2020] [Accepted: 07/09/2020] [Indexed: 12/22/2022]
Abstract
Escherichia coli O157:H7 makes a major threat to human health. Aiming to detect Escherichia coli O157:H7 sensitively, hybridization chain reaction signal amplified immunoassay (immuno-HCR) based on contact quenching (CQ) and fluorescence resonance energy transfer (FRET) was developed. The background of the new designed HCR hairpins (CQ-FRET hairpins) was reduced by contact-quenching fluorescein (FAM) and breaking FRET from donor (FAM) to acceptor (Cy5). The F/F0 ratio of CQ-FRET hairpins (37.02) was obviously higher than that of two other common HCR fluorescent hairpins (CQ hairpins, 21.45; FRET hairpins, 4.61). The limit of detection of the assay was 3.5 × 101 CFU/mL and obviously lower than that of CQ hairpins based immuno-HCR (3.28 × 103 CFU/mL) and FRET hairpins based immuno-HCR (6.49 × 104 CFU/mL). The proposed low fluorescent background immuno-HCR with high sensitivity which was verified in contaminated milk samples could be potentially used in the detection of various pathogens.
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Affiliation(s)
- Miaolin Duan
- State Key Laboratory of Food Science and Technology, Nanchang University, 235 East Nanjing Road, Nanchang 330047, China
| | - Xiaoyue Xiao
- State Key Laboratory of Food Science and Technology, Nanchang University, 235 East Nanjing Road, Nanchang 330047, China
| | - Yanmei Huang
- Jiangxi YeLi Medical Device Co., Ltd, 2799 TianXiang Avenue, Nanchang 330008, China
| | - Guoqiang Li
- State Key Laboratory of Food Science and Technology, Nanchang University, 235 East Nanjing Road, Nanchang 330047, China
| | - Shan Shan
- Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Xi Lv
- State Key Laboratory of Food Science and Technology, Nanchang University, 235 East Nanjing Road, Nanchang 330047, China
| | - Houde Zhou
- Jiangxi Province Key Laboratory of Diagnosing and Tracing of Foodborne Disease, Jiangxi Province Centre for Disease Control and Prevention, 555 East Beijing Road, Nanchang 330029, China
| | - Silu Peng
- Jiangxi Province Key Laboratory of Diagnosing and Tracing of Foodborne Disease, Jiangxi Province Centre for Disease Control and Prevention, 555 East Beijing Road, Nanchang 330029, China
| | - Chengwei Liu
- Jiangxi Province Key Laboratory of Diagnosing and Tracing of Foodborne Disease, Jiangxi Province Centre for Disease Control and Prevention, 555 East Beijing Road, Nanchang 330029, China.
| | - Daofeng Liu
- Jiangxi Province Key Laboratory of Diagnosing and Tracing of Foodborne Disease, Jiangxi Province Centre for Disease Control and Prevention, 555 East Beijing Road, Nanchang 330029, China.
| | - Weihua Lai
- State Key Laboratory of Food Science and Technology, Nanchang University, 235 East Nanjing Road, Nanchang 330047, China.
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19
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Niu H, Yang X, Wang Y, Li M, Zhang G, Pan P, Qi Y, Yang Z, Wang J, Liao Z. Electrochemiluminescence Detection of Sunset Yellow by Graphene Quantum Dots. Front Chem 2020; 8:505. [PMID: 32714896 PMCID: PMC7344220 DOI: 10.3389/fchem.2020.00505] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 05/15/2020] [Indexed: 12/12/2022] Open
Abstract
Use of food additives, such as colorants and preservatives, is highly regulated because of their potential health risks to humans. Therefore, it is important to detect these compounds effectively to ensure conformance with industrial standards and to mitigate risk. In this paper, we describe the preparation and performance of an ultrasensitive electrochemiluminescence (ECL) sensor for detecting a key food additive, sunset yellow. The sensor uses graphene quantum dots (GQDs) as the luminescent agent and potassium persulfate as the co-reactant. Strong and sensitive ECL signals are generated in response to trace amounts of added sunset yellow. A detection limit (signal-to-noise ratio = 3) of 7.6 nM and a wide linear range from 2.5 nM to 25 μM are demonstrated. A further advantage of the method is that the luminescent reagents can be recycled, indicating that the method is sustainable, in addition to being simple and highly sensitive.
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Affiliation(s)
- Huimin Niu
- Tianjin Key Laboratory of Film Electronic and Communication Devices, Advanced Materials and Printed Electronics Center, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin, China
| | - Xin Yang
- Tianjin Key Laboratory of Film Electronic and Communication Devices, Advanced Materials and Printed Electronics Center, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin, China
| | - Yilei Wang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, China
| | - Mingchen Li
- Tianjin Key Laboratory of Film Electronic and Communication Devices, Advanced Materials and Printed Electronics Center, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin, China
| | - Guangliang Zhang
- Tianjin Key Laboratory of Film Electronic and Communication Devices, Advanced Materials and Printed Electronics Center, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin, China
| | - Peng Pan
- Tianjin Key Laboratory of Film Electronic and Communication Devices, Advanced Materials and Printed Electronics Center, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin, China
| | - Yangyang Qi
- Tianjin Key Laboratory of Film Electronic and Communication Devices, Advanced Materials and Printed Electronics Center, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin, China
| | - Zhengchun Yang
- Tianjin Key Laboratory of Film Electronic and Communication Devices, Advanced Materials and Printed Electronics Center, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin, China
| | - John Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Zhenyu Liao
- Pony Testing International Group, Tianjin, China.,Tianjin Food Safety Inspection Technology Institute, Tianjin, China
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20
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Ouyang H, Zhang L, Jiang S, Wang W, Zhu C, Fu Z. Co Single-Atom Catalysts Boost Chemiluminescence. Chemistry 2020; 26:7583-7588. [PMID: 32428322 DOI: 10.1002/chem.202002330] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Indexed: 12/20/2022]
Abstract
Co single-atom catalysts (SACs) with good aqueous solubility and abundant labelling functional groups were prepared in Co/Fe bimetallic metal-organic frameworks by a facile solvothermal method without high-temperature calcination. In contrast to traditional chemiluminescence (CL) catalysts, Co SACs accelerated decomposition of H2 O2 to produce a large amount of singlet oxygen (1 O2 ) rather than superoxide (O2 .- ) and hydroxyl radical (OH. ). They were found to dramatically enhance the CL emission of the luminol-H2 O2 reaction by 1349 times, and, therefore, were employed as very sensitive signal probes for conducting CL immunoassay of cardiac troponin I. The detection limit of the target analyte was as low as 3.3 pg mL-1 . It is the first time that employment of SACs for boosting CL reactions has been validated. The Co SACs can also be employed to trace other biorecognition events with high sensitivity.
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Affiliation(s)
- Hui Ouyang
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, P. R. China
| | - Lvxia Zhang
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, P. R. China
| | - Shan Jiang
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, P. R. China
| | - Wenwen Wang
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, P. R. China
| | - Chengzhou Zhu
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing, Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Zhifeng Fu
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, P. R. China
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21
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Huang Y, Yue N, Fan A. Cationic liposome-triggered luminol chemiluminescence reaction and its applications. Analyst 2020; 145:4551-4559. [PMID: 32421110 DOI: 10.1039/d0an00632g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Liposomes are spherical phospholipid bilayer vesicles. In the present study, we found that cationic liposomes made by (2,3-dioleoyloxy-propyl)-trimethylammonium (DOTAP) could enhance the luminol-H2O2 chemiluminescence (CL) reaction. Mechanism studies showed that the positive charge on the surface of liposomes plays an important role in the CL process. We speculated that the cationic liposomes with quaternary ammonium groups on the surface may be capable of catalyzing the decomposition of H2O2 leading to the formation of oxygen-related free radicals including ˙OH, 1O2, and O2˙-. The luminol anions tend to move close to the surface of the cationic liposomes and then to be oxidized by the oxidizing radical species which may be around the surface of cationic liposomes forming excited-state 3-aminophthalate* (3-APA*). When the 3-APA* returns to the ground state, an enhanced CL is observed. In addition, the single-strand DNA (ssDNA) showed a significant inhibition effect on the proposed CL reaction. The CL intensity decreased linearly with an increasing amount of DNA from 0.05 to 2 pmol. We assumed that the binding of ssDNA with cationic liposomes would neutralize the positive charge on the surface of liposomes and inhibit the catalytic activity of DOTAP cationic liposomes. Based on the ssDNA-inhibited luminol-H2O2-cationic liposome CL reaction, simple label-free CL sensing platforms were developed for the detection of sequence-specific DNA related to the hepatitis B virus (HBV) gene and for the detection of ATP (as a model analyte) using an anti-ATP aptamer as the recognition element.
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Affiliation(s)
- Yongxin Huang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China.
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22
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Sun X, Wang Y, Zhang L, Liu S, Zhang M, Wang J, Ning B, Peng Y, He J, Hu Y, Gao Z. CRISPR-Cas9 Triggered Two-Step Isothermal Amplification Method for E. coli O157:H7 Detection Based on a Metal-Organic Framework Platform. Anal Chem 2020; 92:3032-3041. [PMID: 31994379 DOI: 10.1021/acs.analchem.9b04162] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Escherichia coli O157:H7 has been reported as an important pathogenic bacteria causing serious infection and economic loss. However, detection of Escherichia coli O157:H7 needs improvement, given its current complexity and sensitivity. Herein, we attempt to build a fluorescence sensing method to detect Escherichia coli O157:H7 with easy operation and high efficiency. The target virulence gene sequences are recognized and cleaved by the CRISPR-Cas9 system, and trigger strand displacement amplification and rolling circle amplification. After amplification reactions, massive products can hybridize with the probes, the fluorescence of which are quenched based on a metal-organic framework platform, leading to the fluorescence recovery at typical excitation/emission wavelengths of 480/518 nm. This method exhibits high sensitivity with the detection limit at 4.0 × 101 CFU mL-1 and a wide range from 1.3 × 102 CFU mL-1 to 6.5 × 104 CFU mL-1. Meanwhile, this assay also shows significant specificity and applies to practical samples with high accuracy. Therefore, our method would have great potential application in bacterial detection, food safety monitoring, or clinical diagnostics.
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Affiliation(s)
- Xuan Sun
- State Key Laboratory of Agricultural Microbiology , Huazhong Agricultural University , Wuhan 430070 , P. R. China.,College of Life Science and Technology , Huazhong Agricultural University , Wuhan 430070 , P. R. China.,Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety , Tianjin Institute of Environment and Operational Medicine , Tianjin 300050 , P. R. China
| | - Yu Wang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety , Tianjin Institute of Environment and Operational Medicine , Tianjin 300050 , P. R. China
| | - Lu Zhang
- Key Laboratory of Horticultural Plant Biology , Huazhong Agricultural University , Wuhan 430070 , P. R. China
| | - Sha Liu
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety , Tianjin Institute of Environment and Operational Medicine , Tianjin 300050 , P. R. China
| | - Man Zhang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety , Tianjin Institute of Environment and Operational Medicine , Tianjin 300050 , P. R. China
| | - Jiang Wang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety , Tianjin Institute of Environment and Operational Medicine , Tianjin 300050 , P. R. China
| | - Baoan Ning
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety , Tianjin Institute of Environment and Operational Medicine , Tianjin 300050 , P. R. China
| | - Yuan Peng
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety , Tianjin Institute of Environment and Operational Medicine , Tianjin 300050 , P. R. China
| | - Jing He
- State Key Laboratory of Agricultural Microbiology , Huazhong Agricultural University , Wuhan 430070 , P. R. China.,College of Life Science and Technology , Huazhong Agricultural University , Wuhan 430070 , P. R. China
| | - Yonggang Hu
- State Key Laboratory of Agricultural Microbiology , Huazhong Agricultural University , Wuhan 430070 , P. R. China.,College of Life Science and Technology , Huazhong Agricultural University , Wuhan 430070 , P. R. China
| | - Zhixian Gao
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety , Tianjin Institute of Environment and Operational Medicine , Tianjin 300050 , P. R. China
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23
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Yang H, Zhao X, Wang H, Deng W, Tan Y, Ma M, Xie Q. Sensitive photoelectrochemical immunoassay of Staphylococcus aureus based on one-pot electrodeposited ZnS/CdS heterojunction nanoparticles. Analyst 2019; 145:165-171. [PMID: 31724656 DOI: 10.1039/c9an02020a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We report here a facile synthesis of ZnS/CdS heterojunction nanoparticles on an indium-tin oxide (ITO) electrode and their application in the ultrasensitive photoelectrochemical detection of Staphylococcus aureus (S. aureus). The ZnS/CdS/ITO electrode was prepared using one-pot electrodeposition in an acidic solution containing ZnCl2, CdCl2 and Na2S2O3. The optimal ZnS/CdS heterojunction nanoparticles with a Zn/Cd atomic ratio of 1 : 1 showed a high photoelectrochemical response to l-cysteine. l-Cysteine-encapsulated liposome (cysteine@liposome) immunonanocapsules were prepared and used as the labels for photoelectrochemical detection of S. aureus. By coupling cysteine@liposome immunonanocapsule labeling with immunomagnetic separation/enrichment and photoelectrochemical analysis using the ZnS/CdS/ITO electrode, sensitive photoelectrochemical detection of S. aureus was achieved. Under optimal conditions, the linear range for photoelectrochemical detection of S. aureus was from 1 to 4000 CFU mL-1. The proposed method was successfully used for photoelectrochemical detection of S. aureus in milk and juice samples.
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Affiliation(s)
- Hui Yang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China.
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24
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Chan JC, Paice M, Zhang X. Enzymatic Oxidation of Lignin: Challenges and Barriers Toward Practical Applications. ChemCatChem 2019. [DOI: 10.1002/cctc.201901480] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jou C. Chan
- Voiland School of Chemical Engineering and Bioengineering Washington State University 2710 Crimson Way Richland WA-99354 USA
| | - Michael Paice
- FPInnovations Pulp Paper & Bioproducts 2665 East Mall Vancouver BC V6T 1Z4 Canada
| | - Xiao Zhang
- Voiland School of Chemical Engineering and Bioengineering Washington State University 2710 Crimson Way Richland WA-99354 USA
- Pacific Northwest National Laboratory 520 Battelle Boulevard P.O. Box 999, MSIN P8-60 Richland WA-99352 USA
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25
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Yang G, Wang H, Dong Y, Li Z, Wang GL. High-throughput photoelectrochemical determination of E. coli O157:H7 by modulation of the anodic photoelectrochemistry of CdS quantum dots via reversible deposition of MnO2. Mikrochim Acta 2019; 187:16. [DOI: 10.1007/s00604-019-3968-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 10/19/2019] [Indexed: 12/14/2022]
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26
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Lu C, Gao X, Chen Y, Ren J, Liu C. Aptamer-Based Lateral Flow Test Strip for the Simultaneous Detection of Salmonella typhimurium, Escherichia coli O157:H7 and Staphylococcus aureus. ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1663528] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Chunxia Lu
- Life Science and Technology Institute, Yangtze Normal University, Chongqing, China
| | - Xiaoxu Gao
- Life Science and Technology Institute, Yangtze Normal University, Chongqing, China
| | - Ya Chen
- Chongqing Fuling Institute for Food and Drug Control, Chongqing, China
| | - Jiangtao Ren
- Chongqing Fuling Institute for Food and Drug Control, Chongqing, China
| | - Changbin Liu
- Key Laboratories of Sheep Breeding and Reproduce, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, China
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27
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Li J, Zhao X, Chen LJ, Qian HL, Wang WL, Yang C, Yan XP. p-Bromophenol-Enhanced Bienzymatic Chemiluminescence Competitive Immunoassay for Ultrasensitive Determination of Aflatoxin B1. Anal Chem 2019; 91:13191-13197. [DOI: 10.1021/acs.analchem.9b03579] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Juan Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xu Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Li-Jian Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Hai-Long Qian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Wen-Long Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Cheng Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiu-Ping Yan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
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28
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Rapid detection of trace Salmonella in milk and chicken by immunomagnetic separation in combination with a chemiluminescence microparticle immunoassay. Anal Bioanal Chem 2019; 411:6067-6080. [DOI: 10.1007/s00216-019-01991-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/20/2019] [Accepted: 06/18/2019] [Indexed: 12/11/2022]
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29
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Xu X, Chen J, Li B, Tang L, Jiang J. Single particle ICP-MS-based absolute and relative quantification of E. coli O157 16S rRNA using sandwich hybridization capture. Analyst 2019; 144:1725-1730. [PMID: 30663735 DOI: 10.1039/c8an02063a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Herein, a novel 16S rRNA detection platform was achieved by combining a sandwich hybridization reaction, a single-molecule magnetic capture, and single particle-inductively coupled plasma mass spectrometry amplification. The assay was developed for the direct detection of RNA from dangerous human pathogens and enabled absolute and high-precision quantification of a target with a detection limit of 10 fM.
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Affiliation(s)
- Xiaomin Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
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30
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Bu SJ, Wang KY, Bai HS, Leng Y, Ju CJ, Wang CY, Liu WS, Wan JY. Immunoassay for pathogenic bacteria using platinum nanoparticles and a hand-held hydrogen detector as transducer. Application to the detection of Escherichia coli O157:H7. Mikrochim Acta 2019; 186:296. [PMID: 31016400 DOI: 10.1007/s00604-019-3409-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/02/2019] [Indexed: 01/19/2023]
Abstract
An innovative approach is presented for portable and sensitive detection of pathogenic bacteria. A novel synthetic hybrid nanocomposite encapsulating platinum nanoparticles, as a highly efficient catalyst, catalyzes the hydrolysis of the ammonia-borane complex to generate hydrogen gas. The nanocomposites are used as a label for immunoassays. A portable hand-held hydrogen detector combined with nanocomposite-induced signal conversion was applied for point-of-care testing of pathogenic bacteria. A hand-held hydrogen detector was used as the transducer. Escherichia coli O157:H7 (E. coli O157: H7), as detection target, formed a sandwich structure with magnetic beads and hybrid nanocomposites. Magnetic beads were used for separation of the sandwich structure, and hybrid nanocomposites as catalysts to catalyze the generation of hydrogen from ammonia-borane. The generated hydrogen was detected by a hydrogen detector using an electrochemical method. E. coli O157:H7 has a detection limit of 10 CFU·mL-1. The immunosensor made the hand-held hydrogen detector a point-of-care meter to be used outdoors for the detection and quantification of targets beyond hydrogen. Graphical abstract Schematic presentation of one-pot synthetic peptide-Cu3(PO4)2 hybrid nanocomposites embedded PtNPs (PPNs), encapsulating many Pt particles. The PPNs acts as an ideal immunoprobe for hand-held H2 detector signal readouts, by transforming pathogenic bacteria recognition events into H2 signals.
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Affiliation(s)
- Sheng-Jun Bu
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China
| | - Kui-Yu Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China
| | - Hua-Song Bai
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China
| | - Yan Leng
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China
| | - Chuan-Jing Ju
- The General Hospital of FAW, Changchun, 130011, China.,The Fourth Hospital of Jilin University, Changchun, 130011, China
| | - Cheng-Yu Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China
| | - Wen-Sen Liu
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China.
| | - Jia-Yu Wan
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China.
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Huang F, Xue L, Zhang H, Guo R, Li Y, Liao M, Wang M, Lin J. An enzyme-free biosensor for sensitive detection of Salmonella using curcumin as signal reporter and click chemistry for signal amplification. Am J Cancer Res 2018; 8:6263-6273. [PMID: 30613296 PMCID: PMC6299696 DOI: 10.7150/thno.29025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/17/2018] [Indexed: 01/08/2023] Open
Abstract
In this study, an enzyme-free biosensor was developed for sensitive and specific detection of Salmonella typhimurium (S. typhimurium) using curcumin (CUR) as signal reporter and 1,2,4,5-tetrazine (Tz)-trans-cyclooctene (TCO) click chemistry for signal amplification. Methods: Nanoparticles composed of CUR and bovine serum albumin (BSA) were formulated and reacted with Tz and TCO to form Tz-TCO-CUR conjugates through Tz-TCO click chemistry. Then, the Tz-TCO-CUR conjugates were functionalized with polyclonal antibodies (pAbs) against S. typhimurium to form CUR-TCO-Tz-pAb conjugates. Magnetic nanoparticles (MNPs) conjugated with monoclonal antibodies (mAbs) against S. typhimurium through streptavidin-biotin binding were used to specifically and efficiently separate S. typhimurium from the background by magnetic separation. CUR-TCO-Tz-pAb conjugates were reacted with the magnetic bacteria to form CUR-Tz-TCO bacteria. Finally, CUR was released quickly from the CUR-Tz-TCO bacteria in the presence of NaOH, and the color change was measured at the characteristic wavelength of 468 nm for bacteria quantification. Results: A linear relationship between absorbance at 468 nm and concentration of S. typhimurium from 102 to 106 CFU/mL was found. The lower detection limit was calculated to be as low as 50 CFU/mL and the mean recovery was 107.47% for S. typhimurium in spiked chicken samples. Conclusion: This biosensor has the potential for practical applications in the detection of foodborne pathogens.
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Rapid detection of Escherichia coli based on 16S rDNA nanogap network electrochemical biosensor. Biosens Bioelectron 2018; 118:9-15. [DOI: 10.1016/j.bios.2018.07.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 07/15/2018] [Accepted: 07/17/2018] [Indexed: 11/18/2022]
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Zhu F, Zhao G, Dou W. Electrochemical sandwich immunoassay for Escherichia coli O157:H7 based on the use of magnetic nanoparticles and graphene functionalized with electrocatalytically active Au@Pt core/shell nanoparticles. Mikrochim Acta 2018; 185:455. [PMID: 30215173 DOI: 10.1007/s00604-018-2984-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 08/29/2018] [Indexed: 12/21/2022]
Abstract
A highly sensitive electrochemical sandwich immunoassay is described for determination of Escherichia coli O157:H7 (E. coli O157:H7). Silica coated magnetite nanoparticles (Fe3O4) were modified with primary antibody to capture E. coli O157:H7. Gold-platinum core/shell nanoparticles (Au@Pt NPs) with different Pt shell thicknesses were prepared via changing the molar ratio of H2PtCl6 to HAuCl4 in the precursor solution. The optimized Au@Pt NPs exhibit enhanced activity in the electrocatalytic reduction of hydrogen peroxide (H2O2). The Au@Pt NPs were modified with graphene that was functionalized with Neutral Red, and then used as an electrochemical label for secondary antibodies and horseradish peroxidase (HRP). The sandwich immunocomplexes were magnetically absorbed on a 4-channel screen printed carbon electrode. Due to the catalysis of the Au@Pt NPs and HRP, the signal is strongly amplified in the presence of H2O2 when using thionine as the electron mediator. Under optimal conditions, the immunoassay has a linear response in the 4.0 × 102 to 4.0 × 108 CFU·mL-1 concentration range, with a limit of detection of 91 CFU·mL-1 (at an S/N ratio of 3). Graphical abstract Preparation of Au@Pt core/shell nanoparticles with different Pt shell thickness (A), rGO-NR (B), rGO-NR-Au@Pt-Ab2-HRP (C) and the preparation and the detection process of the immunoassay (D). rGO: reduced graphene oxide, GO: graphene oxide, NR: Neutral Red, HRP: horseradish peroxidase, AuNPs: gold nanoparticles, Fe3O4@SiO2: Silica coated magnetite nanoparticles, 4-SPCE: 4-channel screen printed carbon electrode.
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Affiliation(s)
- Fanjun Zhu
- Food Safety Key Laboratory of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Guangying Zhao
- Food Safety Key Laboratory of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Wenchao Dou
- Food Safety Key Laboratory of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, China.
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Xu X, Guo Y, Wang L, He K, Guo Y, Wang X, Gunasekaran S. Hapten-Grafted Programmed Probe as a Corecognition Element for a Competitive Immunosensor to Detect Acetamiprid Residue in Agricultural Products. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7815-7821. [PMID: 29944365 DOI: 10.1021/acs.jafc.8b02487] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We have developed an effective competitive electrochemical immunosensor assay based on hapten-grafted programmed probe (HGPP) as a corecognition element for highly sensitive and selective detection of acetamiprid. Starting with the synthesis of hapten, HGPP was prepared using carboxyl group in the hapten and amino group in the 5' end of the programmed probe through covalent conjugation. Acetamiprid present in samples competes with HGPP to bind with capture antibody on the electrodes by specific recognition interaction. Methylene blue probe (MBP) was used as the electrochemical redox probe to capture the hybridized HGPP on the electrodes. The competitive reaction changes in accordance with the quantity of the target acetamiprid in the sample, as the amounts of the hybridized HGPP and the immobilized antibody are constant, i.e., the more acetamiprid samples are added, the less MBP is combined on the electrodes. In the optimal conditions, thus, biosensor output showed a linear relationship from 5 to 105 ng L-1 for the acetamiprid assay with a detecting limit of 3.2 ng L-1. The biosensor was successful in quantifying the amount of acetamiprid in spiked strawberry and cabbage extracts. This competitive immunosensor assay represents a rapid and sensitive technology for acetamiprid assay or other small molecule targets in food.
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Affiliation(s)
- Xiahong Xu
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
| | - Yuna Guo
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
| | - Liu Wang
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
| | - Kaiyu He
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
| | - Yirong Guo
- Institute of Pesticide and Environmental Toxicology , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310029 , Zhejiang P rovince China
| | - Xinquan Wang
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
| | - Sundaram Gunasekaran
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
- College of Agricultural and Life Sciences , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
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Biosensors for wastewater monitoring: A review. Biosens Bioelectron 2018; 118:66-79. [PMID: 30056302 DOI: 10.1016/j.bios.2018.07.019] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 07/07/2018] [Accepted: 07/09/2018] [Indexed: 02/06/2023]
Abstract
Water pollution and habitat degradation are the cause of increasing water scarcity and decline in aquatic biodiversity. While the freshwater availability has been declining through past decades, water demand has continued to increase particularly in areas with arid and semi-arid climate. Monitoring of pollutants in wastewater effluents are critical to identifying water pollution area for treatment. Conventional detection methods are not effective in tracing multiple harmful components in wastewater due to their variability along different times and sources. Currently, the development of biosensing instruments attracted significant attention because of their high sensitivity, selectivity, reliability, simplicity, low-cost and real-time response. This paper provides a general overview on reported biosensors, which have been applied for the recognition of important organic chemicals, heavy metals, and microorganisms in dark waters. The significance and successes of nanotechnology in the field of biomolecular detection are also reviewed. The commercially available biosensors and their main challenges in wastewater monitoring are finally discussed.
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Kim SU, Jo EJ, Mun H, Noh Y, Kim MG. Ultrasensitive Detection of Escherichia coli O157:H7 by Immunomagnetic Separation and Selective Filtration with Nitroblue Tetrazolium/5-Bromo-4-chloro-3-indolyl Phosphate Signal Amplification. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:4941-4947. [PMID: 29709176 DOI: 10.1021/acs.jafc.8b00973] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Here, we report an enhanced colorimetric method using enzymatic amplification with nitroblue tetrazolium (NBT)/5-bromo-4-chloro-3-indolyl phosphate (BCIP) precipitation for the ultrasensitive detection of Escherichia coli O157:H7 through immunomagnetic separation-selective filtration. Biotinylated anti- E. coli O157:H7 antibody and streptavidin-alkaline phosphatase were conjugated to the surface of magnetic nanoparticles, and E. coli O157:H7-conjugates complexes remained on the membrane filter surface. The resultant light brown spots on the membrane filter were amplified with NBT/BCIP solution to yield enzyme-catalyzed precipitation, which increased with an increasing E. coli O157:H7 concentration. E. coli O157:H7 was detected in pure samples with limits of detection of 10 and 6.998 colony-forming units (CFU)/mL through visual observation and measurement of optical density, respectively. The proposed method was applied to a lettuce sample inoculated with selective E. coli O157:H7, which was detected within 55 min without cross-reactivity to non-target bacteria. This enhanced colorimetric method has potential for on-site detection of food contaminants and environmental pollutants.
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Affiliation(s)
- Seong U Kim
- Department of Chemistry, School of Physics and Chemistry , Gwangju Institute of Science and Technology (GIST) , 123 Cheomdangwagi-ro , Buk-gu, Gwangju 61005 , Republic of Korea
| | - Eun-Jung Jo
- Department of Chemistry, School of Physics and Chemistry , Gwangju Institute of Science and Technology (GIST) , 123 Cheomdangwagi-ro , Buk-gu, Gwangju 61005 , Republic of Korea
| | - Hyoyoung Mun
- Department of Chemistry, School of Physics and Chemistry , Gwangju Institute of Science and Technology (GIST) , 123 Cheomdangwagi-ro , Buk-gu, Gwangju 61005 , Republic of Korea
| | - Yuseon Noh
- Department of Chemistry, School of Physics and Chemistry , Gwangju Institute of Science and Technology (GIST) , 123 Cheomdangwagi-ro , Buk-gu, Gwangju 61005 , Republic of Korea
| | - Min-Gon Kim
- Department of Chemistry, School of Physics and Chemistry , Gwangju Institute of Science and Technology (GIST) , 123 Cheomdangwagi-ro , Buk-gu, Gwangju 61005 , Republic of Korea
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Liu H, Gu Y, Dong T, Yan L, Yan X, Zhang T, Lu N, Xu Z, Xu H, Zhang Z, Bian T. Signal amplification strategy for biomarkers: Structural origins of epitaxial-growth twinned nanocrystals and D-π-A type polymers. Biosens Bioelectron 2018; 109:184-189. [PMID: 29558732 DOI: 10.1016/j.bios.2018.03.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/07/2018] [Accepted: 03/08/2018] [Indexed: 12/27/2022]
Abstract
The combination of nanoparticles and biomarkers yields functional nanostructured biointerface, which is playing a notable role in biotechnology development. Due to the 5-fold twined structure in the Au-Pt star-shaped decahedra not only allowed it to act as efficient scaffold for immobilization of antibody, but it also exhibits superior electrocatalytic activity toward H2O2 reduction, the nanocrystal as the efficient signal transduction label is first employed to construct an electrochemical immunosensor. Donor-π-Acceptor (D-π-A) linking fashion generates a dipolar push-pull system and assures superior intramolecular charge transfer. It is considered as a suitable π-conjugated backbone for conducting polymer on biointerface application. Under a D-π-A architecture which imidazole as the π-bridge and amino phenyl/phenyl groups as peripheral electron-donating/withdrawing functional groups, 4-(2,4,5-triphenyl-1H-imidazol-1-yl) aniline (TPIDA) is designed and synthesized for good biocompatibility and high conductivity. In this proposal, we attempt to integrate the above-mentioned two features from nanobiotechnology and organic bioelectronics. Then, a novel nonenzymatic sandwich-type immunosensor is performed by Au-Pt core-shell with surface-engineered twinning as a label and π-conjugated D-π-A polymers as the signal amplification platform. Human IgG (HIgG) as the model target protein can be detected with a wide linear range from 0.1 pg mL-1 to 100 ng mL-1. The detection limit is down to 0.06 pg mL-1 (S/N = 3). Moreover, as a practical application, the prepared biosensor is used to monitor HIgG level in human serum with desirable results obtained.
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Affiliation(s)
- He Liu
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Yue Gu
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Tao Dong
- Department of Chemistry, University of Washington, Seattle, WA 98195-1700, United States
| | - Liuqing Yan
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Xiaoyi Yan
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Tingting Zhang
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Nannan Lu
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Zhiqian Xu
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Haixin Xu
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Zhiquan Zhang
- College of Chemistry, Jilin University, Changchun 130012, PR China.
| | - Ting Bian
- School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, PR China.
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Ye L, Zhao G, Dou W. An electrochemical immunoassay for Escherichia coli O157:H7 using double functionalized Au@Pt/SiO 2 nanocomposites and immune magnetic nanoparticles. Talanta 2018; 182:354-362. [PMID: 29501164 DOI: 10.1016/j.talanta.2018.01.095] [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: 11/07/2017] [Revised: 01/23/2018] [Accepted: 01/31/2018] [Indexed: 01/23/2023]
Abstract
A sensitive Point-of-Care Testing (POCT) with Au-Pt bimetallic nanoparticles (Au@Pt) functionalized silica nanoparticle (SiO2 NPs) and Fe3O4 magnetic nanoparticles (Fe3O4 NPs) was designed for the quantitative detection of Escherichia coli O157:H7 (E. coli O157:H7). The poly-(4-styrenesulfonic acid-co-maleic acid) (PSSMA) as a negatively charged polyelectrolyte can be easily coated on surface of the amino group modified SiO2 NPs via electrostatic force. PSSMA is also a good stabilizer for water-soluble bimetallic nanostructures. The PSSMA is first time used as a "bridge" to connect the negative charge Au@Pt NPs to the SiO2 NPs, forming Au@Pt/SiO2 NPs. Antibody and invertase conjugated Au@Pt/SiO2 NPs (denoted as Ab/invertase-Au@Pt/SiO2 NPs) were used as signal labels. Monoclonal antibody against E. coli O157:H7 (Ab) functionalized magnetic nanoparticles (denoted as Ab-Fe3O4@SiO2 NPs) were used to enrich and capture the E. coli O157:H7 in positive sample. The immunosensing platform also composed of a personal glucometer (PGM) using for signal readout. Based on this sandwich-type immunoassay, the invertase in the final formed sandwich immunocomplex catalyzed the hydrolysis of sucrose to produce a large amount of glucose for quantitative readout by the PGM. Under optimal conditions, a linear relationship between the glucose concentration and the logarithm of E. coli O157:H7 concentration was obtained in the concentration range from 3.5 × 102 to 3.5 × 108 CFU mL-1 with a detection limit of 1.83 × 102 CFU mL-1 (3σ). This method was used to detect E. coli O157:H7 in spiked milk samples, indicating its potential practical application. This protocol can be applied in various fields of study.
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Affiliation(s)
- Lingxian Ye
- Food Safety Key Laboratory of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Guangying Zhao
- Food Safety Key Laboratory of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China.
| | - Wenchao Dou
- Food Safety Key Laboratory of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China.
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Ma X, Xu X, Xia Y, Wang Z. SERS aptasensor for Salmonella typhimurium detection based on spiny gold nanoparticles. Food Control 2018. [DOI: 10.1016/j.foodcont.2017.07.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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40
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Lu W, Xu R, Zhang X, Shen J, Li C. Electrochemical immunoassay of E. coli in urban sludge using electron mediator-mediated enzymatic catalysis and gold nanoparticles for signal amplification. Chem Res Chin Univ 2017. [DOI: 10.1007/s40242-017-7254-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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41
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Cheng N, Song Y, Zeinhom MMA, Chang YC, Sheng L, Li H, Du D, Li L, Zhu MJ, Luo Y, Xu W, Lin Y. Nanozyme-Mediated Dual Immunoassay Integrated with Smartphone for Use in Simultaneous Detection of Pathogens. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40671-40680. [PMID: 28914522 PMCID: PMC8681872 DOI: 10.1021/acsami.7b12734] [Citation(s) in RCA: 159] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Nanozymes are an excellent class of optical reporters for the development of sensitive biosensors for widespread applications. In this study, mesoporous core-shell palladium@platinum (Pd@Pt) nanoparticles were synthesized and then applied as signal amplifier in a dual lateral flow immunoassay (LFIA) and integrated with a smartphone-based device for use in simultaneous detection of Salmonella Enteritidis and Escherichia coli O157:H7. After optimization, the limit of detections were calculated to be ∼20 cfu/mL for S. Enteritidis and ∼34 cfu/mL for E. coli O157:H7, respectively. The greatly improved sensitivity was contributed by the peroxidase-like catalytic activity of the Pd@Pt nanoparticles for signal enhancement and the parallel design of dual detection for eliminating the cross-interference. The estimated recoveries of the dual LFIA range from 91.44 to 117.00%, which indicated that the developed method is capable of detecting live bacteria in food samples. This approach provides an attractive platform for S. Enteritidis and E. coli O157:H7 detection using a smartphone-based device as the sole piece of equipment, indicating great promise for foodborne pathogen analysis or in-field food safety tracking.
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Affiliation(s)
- Nan Cheng
- School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yang Song
- School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Mohamed M. A. Zeinhom
- School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
- Food Hygiene Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62512, Egypt
| | - Yu-Chung Chang
- School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Lina Sheng
- School of Food Science, Washington State University, Pullman, Washington 99164, United States
| | - Haolin Li
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Dan Du
- School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Lei Li
- School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, Washington 99164, United States
| | - Yunbo Luo
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Wentao Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Corresponding Authors (W.X). (Y.L)
| | - Yuehe Lin
- School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
- Corresponding Authors (W.X). (Y.L)
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Rapid and selective detection of E. coli O157:H7 combining phagomagnetic separation with enzymatic colorimetry. Food Chem 2017; 234:332-338. [DOI: 10.1016/j.foodchem.2017.05.013] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 01/06/2017] [Accepted: 05/02/2017] [Indexed: 01/15/2023]
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43
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Huang F, Zhang H, Wang L, Lai W, Lin J. A sensitive biosensor using double-layer capillary based immunomagnetic separation and invertase-nanocluster based signal amplification for rapid detection of foodborne pathogen. Biosens Bioelectron 2017; 100:583-590. [PMID: 29032045 DOI: 10.1016/j.bios.2017.10.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/23/2017] [Accepted: 10/02/2017] [Indexed: 01/01/2023]
Abstract
Combining double-layer capillary based high gradient immunomagnetic separation, invertase-nanocluster based signal amplification and glucose meter based signal detection, a novel biosensor was developed for sensitive and rapid detection of E. coli O157:H7 in this study. The streptavidin modified magnetic nanobeads (MNBs) were conjugated with the biotinylated polyclonal antibodies against E. coli O157:H7 to form the immune MNBs, which were captured by the high gradient magnetic field in the double-layer capillary to specifically separate and efficiently concentrate the target bacteria. Calcium chloride was used with the monoclonal antibodies against E. coli O157:H7 and the invertase to form the immune invertase-nanoclusters (INCs), which were used to react with the target bacteria to form the MNB-bacteria-INC complexes in the capillary. The sucrose was then injected into the capillary and catalyzed by the invertase on the complexes into the glucose, which was detected using the glucose meter to obtain the concentration of the glucose for final determination of the E. coli O157:H7 cells in the sample. A linear relationship between the readout of the glucose meter and the concentration of the E. coli O157:H7 cells (from 102 to 107 CFU/mL) was found and the lower detection limit of this biosensor was 79 CFU/mL. This biosensor might be extended for the detection of other foodborne pathogens by changing the antibodies and has shown the potential for the detection of foodborne pathogens in a large volume of sample to further increase the sensitivity.
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Affiliation(s)
- Fengchun Huang
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture, China Agricultural University, 17 East Qinghua Road, Beijing 100083, China
| | - Huilin Zhang
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture, China Agricultural University, 17 East Qinghua Road, Beijing 100083, China
| | - Lei Wang
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture, China Agricultural University, 17 East Qinghua Road, Beijing 100083, China
| | - Weihua Lai
- State Key Laboratory of Food Science and Technology, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Jianhan Lin
- Key Laboratory on Modern Precision Agriculture System Integration Research, Ministry of Education, China Agricultural University, 17 East Qinghua Road, Beijing 100083, China.
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44
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Wang M, Wu Y, He Y, Su X, Ouyang H, Fu Z. Antibiotic-affinity strategy for bioluminescent detection of viable Gram-positive bacteria using daptomycin as recognition agent. Anal Chim Acta 2017; 987:91-97. [PMID: 28916044 DOI: 10.1016/j.aca.2017.08.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 07/19/2017] [Accepted: 08/15/2017] [Indexed: 11/28/2022]
Abstract
A bioluminescent method was proposed for rapid detection of viable Gram-positive bacteria based on a novel antibiotic-affinity strategy on a magnetic beads (MBs) platform. Daptomycin, a highly efficient lipopeptide antibiotic for Gram-positive bacteria, was used as a recognition agent to functionalize MBs. The daptomycin-functionalized MBs showed high capture and concentration efficiency for Gram-positive bacteria due to the strong binding between daptomycin and bacterial cell membrane in the presence of Ca2+ ion. The captured bacteria were lysed by hexadecyl trimethyl ammonium bromide solution, followed by a bioluminescent detection of the released intracellular adenosine triphosphate. Four Gram-positive bacteria, including Staphylococcus aureus, Streptococcus mutans, Bacillus subtilis and Staphylococcus epidermidis, were detected as model bacteria by this method. Under the optimal conditions, the bacteria could be detected within a linear range of 1.0 × 102-3.0 × 106 CFU mL-1, with a detection limit of 33 CFU mL-1. The whole detection procedure could be completed within 20 min. Gram-negative bacteria and dead Gram-positive bacteria showed negligible interference to the detection of viable Gram-positive bacteria. The proposed method was successfully applied to quantify the amount of viable Gram-positive bacteria in cheese, milk, lake water, human urine and physiological saline injection with acceptable recovery values ranging from 75.0% to 120.0%. The strategy possessed some advantages such as high sensitivity, short assay time and simple operation, thus showed great promise for food hygiene, environment monitoring, clinical diagnosis and drug safety.
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Affiliation(s)
- Mengyao Wang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Yue Wu
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Yong He
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Xiaoxiao Su
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Hui Ouyang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Zhifeng Fu
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
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45
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Hao N, Zhang X, Zhou Z, Hua R, Zhang Y, Liu Q, Qian J, Li H, Wang K. AgBr nanoparticles/3D nitrogen-doped graphene hydrogel for fabricating all-solid-state luminol-electrochemiluminescence Escherichia coli aptasensors. Biosens Bioelectron 2017. [PMID: 28624620 DOI: 10.1016/j.bios.2017.06.025] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
It is necessary to develop rapid, simple and accurate detection method for Escherichia coli (E. coli) due to its widely distributed pathogenic bacteria. Herein, we prepared AgBr nanoparticles (NPs) anchored 3D nitrogen-doped graphene hydrogel (3DNGH) nanocomposites with an exceptionally large accessible surface by a simple hydrothermal approach. The as-prepared 3DNGH porous nanocomposite not only showed better conductivity than that of 3D graphene due to introducing nitrogen element into graphene framework, but also provided a high loading volume for immobilizing luminol. Meanwhile the anchored AgBr NPs served as the catalyst can effectively enhance the ECL behavior of luminol. And the resulting luminol/AgBr/3DNGH exhibited more excellent ECL performances, which was about 2, 3, 8 times enhanced respectively, comparing to luminol/AgBr/3DGH, luminol/3DNGH and luminol/AgBr/2DNG. Further, the multifunctional nanoarchitecture was used as the all-solid-state ECL platform for fabricating Escherichia coli aptasensors via glutaraldehyde as crosslinking agent between amine-functionalized E. coli aptamer and luminol/AgBr/3DNGH. Based on the steric hindrance mechanism that E.coli can significantly decrease the ECL intensity, the proposed aptasensor displayed a linear response for E.coli in the range from 0.5 to 500 cfu/mL with an extremely low detection limit of 0.17 cfu/mL (S/N). In addition, this ECL aptasensor possessed great advantages including the simple operation process, low-cost and sensitivity, which provided a promising approach for the E.coli detection in biomedical, food detection and environmental analysis.
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Affiliation(s)
- Nan Hao
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xuan Zhang
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhou Zhou
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Rong Hua
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Ying Zhang
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Qian Liu
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jing Qian
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Henan Li
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Kun Wang
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
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46
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Luo Y, Alocilja EC. Portable nuclear magnetic resonance biosensor and assay for a highly sensitive and rapid detection of foodborne bacteria in complex matrices. J Biol Eng 2017; 11:14. [PMID: 28360935 PMCID: PMC5369001 DOI: 10.1186/s13036-017-0053-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 02/17/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Nuclear magnetic resonance (NMR) technique is a powerful analytical tool in determining the presence of bacterial contaminants in complex biological samples. In this paper, a portable NMR-based (pNMR) biosensor and assay to detect the foodborne bacteria Escherichia coli O157:H7 is reported. It uses antibody-functionalized polymer-coated magnetic nanoparticles as proximity biomarker of the bacteria which accelerates NMR resonance signal decay. RESULTS The pNMR biosensor operates at 0.47 Tesla of magnetic strength and consists of a high-power pulsed RF transmitter and an ultra-low noise sensing circuitry capable of detecting weak NMR signal at 0.1 μV. The pNMR biosensor assay and sensing mechanism is used in detecting E. coli O157:H7 bacteria in drinking water and milk samples. Experimental results demonstrate that by adding a filtration step in the assay, the pNMR biosensor is able to detect E. coli O157:H7 as low as 76 CFU/mL in water samples and as low as 92 CFU/mL in milk samples in about one min. CONCLUSION The pNMR biosensor assay and sensing system is innovative for foodborne bacterial detection in food matrices. The lowest detection level for E. coli O157:H7 in water and milk samples is essentially 101 CFU/mL. Although the linear range of detection is only from 101 to 104 CFU/mL, the wider detection range spans from 101 CFU/mL to 107 CFU/mL. Existing pNMR biosensors have detection limits at 103-104 CFU/mL only. The detection technique can be extended to other microbial or viral organisms by merely changing the specificity of the antibodies. Besides food safety, the pNMR biosensor described in this paper has potential to be applied as a rapid detection device in biodefense and healthcare diagnostic applications.
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Affiliation(s)
- Yilun Luo
- 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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47
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Güner A, Çevik E, Şenel M, Alpsoy L. An electrochemical immunosensor for sensitive detection of Escherichia coli O157:H7 by using chitosan, MWCNT, polypyrrole with gold nanoparticles hybrid sensing platform. Food Chem 2017; 229:358-365. [PMID: 28372186 DOI: 10.1016/j.foodchem.2017.02.083] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 11/13/2016] [Accepted: 02/17/2017] [Indexed: 12/11/2022]
Abstract
An electrochemical immunosensor for the common food pathogen Escherichia coli O157:H7 was developed. This novel immunosensor based on the PPy/AuNP/MWCNT/Chi hybrid bionanocomposite modified pencil graphite electrode (PGE). This hybrid bionanocomposite platform was modified with anti-E. coli O157:H7 monoclonal antibody. The prepared bionanocomposite platform and immunosensor was characterized by using cyclic voltammetry (CV). Under the optimum conditions, the results have shown the order of the preferential selectivity of the method is gram negative pathogenic species E. coli O157:H7. Concentrations of E. coli O157:H7 from 3×101 to 3×107cfu/mL could be detected. The detection limit was ∼30cfu/mL in PBS buffer. Briefly, we developed a high sensitive electrochemical immunosensor for specific detection of E. coli O157:H7 contamination with the use of sandwich assay evaluated in this study offered a reliable means of quantification of the bacteria. For the applications in food quality and safety control, our immunosensor showed reproducibility and stability.
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Affiliation(s)
- Ahmet Güner
- Vocational School of Health Services, Fatih University, Maltepe, Istanbul 34844, Turkey
| | - Emre Çevik
- Department of Genetics and Bioengineering, Faculty of Engineering, Fatih University, B.Cekmece, Istanbul 34500, Turkey; Biotechnology Research Lab, EMC Technology Inc, ARGEM Building, Technocity, Avcılar, Istanbul 34320, Turkey
| | - Mehmet Şenel
- Biotechnology Research Lab, EMC Technology Inc, ARGEM Building, Technocity, Avcılar, Istanbul 34320, Turkey.
| | - Lokman Alpsoy
- Department of Medical Biology, Faculty of Medicine, Fatih University, B.Cekmece, Istanbul 34500, Turkey
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48
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Vidic J, Manzano M, Chang CM, Jaffrezic-Renault N. Advanced biosensors for detection of pathogens related to livestock and poultry. Vet Res 2017; 48:11. [PMID: 28222780 PMCID: PMC5320782 DOI: 10.1186/s13567-017-0418-5] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/23/2017] [Indexed: 01/01/2023] Open
Abstract
Infectious animal diseases caused by pathogenic microorganisms such as bacteria and viruses threaten the health and well-being of wildlife, livestock, and human populations, limit productivity and increase significantly economic losses to each sector. The pathogen detection is an important step for the diagnostics, successful treatment of animal infection diseases and control management in farms and field conditions. Current techniques employed to diagnose pathogens in livestock and poultry include classical plate-based methods and conventional biochemical methods as enzyme-linked immunosorbent assays (ELISA). These methods are time-consuming and frequently incapable to distinguish between low and highly pathogenic strains. Molecular techniques such as polymerase chain reaction (PCR) and real time PCR (RT-PCR) have also been proposed to be used to diagnose and identify relevant infectious disease in animals. However these DNA-based methodologies need isolated genetic materials and sophisticated instruments, being not suitable for in field analysis. Consequently, there is strong interest for developing new swift point-of-care biosensing systems for early detection of animal diseases with high sensitivity and specificity. In this review, we provide an overview of the innovative biosensing systems that can be applied for livestock pathogen detection. Different sensing strategies based on DNA receptors, glycan, aptamers and antibodies are presented. Besides devices still at development level some are validated according to standards of the World Organization for Animal Health and are commercially available. Especially, paper-based platforms proposed as an affordable, rapid and easy to perform sensing systems for implementation in field condition are included in this review.
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Affiliation(s)
- Jasmina Vidic
- Virologie et Immunologie Moléculaires, UR892, INRA, Paris Saclay University, 78350 Jouy-en-Josas, France
| | - Marisa Manzano
- Dipartimento di Scienze AgroAlimentari, Ambientali e Animali, Università di Udine, 33100 Udine, Italy
| | - Chung-Ming Chang
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Tao-Yuan, 33302 Taiwan
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Nakazono M, Oshikawa Y, Nakamura M, Kubota H, Nanbu S. Strongly Chemiluminescent Acridinium Esters under Neutral Conditions: Synthesis, Properties, Determination, and Theoretical Study. J Org Chem 2017; 82:2450-2461. [DOI: 10.1021/acs.joc.6b02748] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Manabu Nakazono
- Graduate
School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yuji Oshikawa
- Graduate
School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Mizuho Nakamura
- Faculty
of Science and Technology, Sophia University, 7-1 Kioi-Cho, Chiyoda-ku, Tokyo 102-8554, Japan
| | - Hidehiro Kubota
- ATTO Corporation, 3-2-2 Motoasakusa, Taito-ku,
Tokyo 111-0041, Japan
| | - Shinkoh Nanbu
- Faculty
of Science and Technology, Sophia University, 7-1 Kioi-Cho, Chiyoda-ku, Tokyo 102-8554, Japan
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50
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Chen S, Chen X, Zhang L, Gao J, Ma Q. Electrochemiluminescence Detection of Escherichia coli O157:H7 Based on a Novel Polydopamine Surface Imprinted Polymer Biosensor. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5430-5436. [PMID: 28098973 DOI: 10.1021/acsami.6b12455] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
In this paper, a facilely prepared electrochemiluminescence (ECL) biosensor was developed for Escherichia coli O157:H7 quantitative detection based on a polydopamine (PDA) surface imprinted polymer (SIP) and nitrogen-doped graphene quantum dots (N-GQDs). N-GQDs with a high quantum yield of 43.2% were synthesized. The uniform PDA SIP film for E. coli O157:H7 was established successfully with a facile route. The dopamine and target bacteria were electropolymerized directly on the electrode. After removal of the E. coli O157:H7 template, the established PDA SIP can selectively recognize E. coli O157:H7. Accordingly, E. coli O157:H7 polyclonal antibody (pAb) was labeled with N-GQDs. The bioconjugation of SIP-E. coli O157:H7/pAb-N-GQDs can generate intensive ECL irradiation with K2S2O8. As a result, E. coli O157:H7 was detected with the ECL sensing system. Under optimal conditions, the linear relationships between the ECL intensity and E. coli O157:H7 concentration were obtained from 101 colony-forming units (CFU) mL-1 to 107 CFU mL-1 with a limit of detection of 8 CFU mL-1. The biosensor based on this SIP film was applied in water sample detection successfully. The N-GQD-based ECL analytical method for E. coli O157:H7 was reported for the first time. The sensing system had high selectivity to the target analyte, provided new opportunities for use, and increased the rate of disease diagnosis and treatment and the prevention of pathogens.
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Affiliation(s)
- Shufan Chen
- Department of Analytical Chemistry, College of Chemistry, Jilin University , Changchun 130012, China
| | - Xueqian Chen
- Department of Analytical Chemistry, College of Chemistry, Jilin University , Changchun 130012, China
| | - Lijuan Zhang
- State Key Laboratory for Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, China
| | - Juanjuan Gao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University , Changchun 130012, China
| | - Qiang Ma
- Department of Analytical Chemistry, College of Chemistry, Jilin University , Changchun 130012, China
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