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Baruah A, Newar R, Das S, Kalita N, Nath M, Ghosh P, Chinnam S, Sarma H, Narayan M. Biomedical applications of graphene-based nanomaterials: recent progress, challenges, and prospects in highly sensitive biosensors. DISCOVER NANO 2024; 19:103. [PMID: 38884869 PMCID: PMC11183028 DOI: 10.1186/s11671-024-04032-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 05/14/2024] [Indexed: 06/18/2024]
Abstract
Graphene-based nanomaterials (graphene, graphene oxide, reduced graphene oxide, graphene quantum dots, graphene-based nanocomposites, etc.) are emerging as an extremely important class of nanomaterials primarily because of their unique and advantageous physical, chemical, biological, and optoelectronic aspects. These features have resulted in uses across diverse areas of scientific research. Among all other applications, they are found to be particularly useful in designing highly sensitive biosensors. Numerous studies have established their efficacy in sensing pathogens and other biomolecules allowing for the rapid diagnosis of various diseases. Considering the growing importance and popularity of graphene-based materials for biosensing applications, this review aims to provide the readers with a summary of the recent progress in the concerned domain and highlights the challenges associated with the synthesis and application of these multifunctional materials.
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Affiliation(s)
- Arabinda Baruah
- Department of Chemistry, Gauhati University, Guwahati, Assam, 781014, India
| | - Rachita Newar
- Department of Chemistry, Gauhati University, Guwahati, Assam, 781014, India
| | - Saikat Das
- Department of Chemistry, Gauhati University, Guwahati, Assam, 781014, India
| | - Nitul Kalita
- Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Masood Nath
- University of Technology and Applied Sciences, Muscat, Oman
| | - Priya Ghosh
- Department of Chemistry, Gauhati University, Guwahati, Assam, 781014, India
| | - Sampath Chinnam
- Department of Chemistry, M.S. Ramaiah Institute of Technology (Autonomous Institution, Affiliated to Visvesvaraya Technological University, Belgaum), Bengaluru, Karnataka, 560054, India
| | - Hemen Sarma
- Department of Botany, Bodoland University, Rangalikhata, Deborgaon, Kokrajhar (BTR), Assam, 783370, India.
| | - Mahesh Narayan
- Department of Chemistry and Biochemistry, University of Texas at El Paso, UTEP, 500 W. University Ave, El Paso, TX, 79968, USA.
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Sahu PK, Gangwar R, Ramesh A, Rao KT, Vanjari SRK, Subrahmanyam C. Green-Synthesized Amino Carbons for Impedimetric Biosensing of E. coli O157:H7. ACS Infect Dis 2024; 10:1644-1653. [PMID: 38602317 DOI: 10.1021/acsinfecdis.3c00721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
This study describes the synthesis of amino-functionalized carbon nanoparticles derived from biopolymer chitosan using green synthesis and its application toward ultrasensitive electrochemical immunosensor of highly virulent Escherichia coli O157:H7 (E. coli O157:H7). The inherent advantage of high surface-to-volume ratio and enhanced rate transfer kinetics of nanoparticles is leveraged to push the limit of detection (LOD), without compromising on the selectivity. The prepared carbon nanoparticles were systematically characterized by employing CO2-thermal programmed desorption (CO2-TPD), Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), ultraviolet-visible (UV-visible), and transmission electron microscopy (TEM). The estimated limit of detection of 0.74 CFU/mL and a sensitivity of 5.7 ((ΔRct/Rct)/(CFU/mL))/cm2 in the electrochemical impedance spectroscopy (EIS) affirm the utility of the sensor. The proposed biosensor displayed remarkable selectivity against interfering species, making it well suited for real-time applications. Moreover, the chitosan-derived semiconducting amino-functionalized carbon shows excellent sensitivity in a comparative analysis compared to highly conducting amine-functionalized carbon synthesized via chemical modification, demonstrating its vast potential as an E. coli sensor.
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Affiliation(s)
- Pravat Kumar Sahu
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Rahul Gangwar
- Department of Electrical Engineering, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Asha Ramesh
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Karri Trinadha Rao
- Department of Electrical Engineering, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Siva Rama Krishna Vanjari
- Department of Electrical Engineering, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Challapalli Subrahmanyam
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy, Telangana 502285, India
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Akabuogu E, Zhang L, Krašovec R, Roberts IS, Waigh TA. Electrical Impedance Spectroscopy with Bacterial Biofilms: Neuronal-like Behavior. NANO LETTERS 2024; 24:2234-2241. [PMID: 38320294 PMCID: PMC10885197 DOI: 10.1021/acs.nanolett.3c04446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 02/08/2024]
Abstract
Negative capacitance at low frequencies for spiking neurons was first demonstrated in 1941 (K. S. Cole) by using extracellular electrodes. The phenomenon subsequently was explained by using the Hodgkin-Huxley model and is due to the activity of voltage-gated potassium ion channels. We show that Escherichia coli (E. coli) biofilms exhibit significant stable negative capacitances at low frequencies when they experience a small DC bias voltage in electrical impedance spectroscopy experiments. Using a frequency domain Hodgkin-Huxley model, we characterize the conditions for the emergence of this feature and demonstrate that the negative capacitance exists only in biofilms containing living cells. Furthermore, we establish the importance of the voltage-gated potassium ion channel, Kch, using knock-down mutants. The experiments provide further evidence for voltage-gated ion channels in E. coli and a new, low-cost method to probe biofilm electrophysiology, e.g., to understand the efficacy of antibiotics. We expect that the majority of bacterial biofilms will demonstrate negative capacitances.
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Affiliation(s)
- Emmanuel
U. Akabuogu
- Division
of Infection, Lydia Becker Institute of Immunology and Inflammation,
School of Biological Sciences, University
of Manchester, Oxford Road, Manchester M13 9PT, United Kingdom
- Biological
Physics, Department of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Lin Zhang
- Biological
Physics, Department of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Rok Krašovec
- Division
of Evolution, Infection and Genomics, School of Biological Sciences,
Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PT, United
Kingdom
| | - Ian S. Roberts
- Division
of Infection, Lydia Becker Institute of Immunology and Inflammation,
School of Biological Sciences, University
of Manchester, Oxford Road, Manchester M13 9PT, United Kingdom
| | - Thomas A. Waigh
- Biological
Physics, Department of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
- Photon
Science Institute, Alan
Turing Building, Oxford Road, Manchester, M13 9PY, United
Kingdom
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4
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Chen Z, Liu Z, Liu J, Xiao X. Research progress in the detection of common foodborne hazardous substances based on functional nucleic acids biosensors. Biotechnol Bioeng 2023; 120:3501-3517. [PMID: 37723667 DOI: 10.1002/bit.28555] [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: 06/14/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/20/2023]
Abstract
With the further improvement of food safety requirements, the development of fast, highly sensitive, and portable methods for the determination of foodborne hazardous substances has become a new trend in the food industry. In recent years, biosensors and platforms based on functional nucleic acids, along with a range of signal amplification devices and methods, have been established to enable rapid and sensitive determination of specific substances in samples, opening up a new avenue of analysis and detection. In this paper, functional nucleic acid types including aptamers, deoxyribozymes, and G-quadruplexes which are commonly used in the detection of food source pollutants are introduced. Signal amplification elements include quantum dots, noble metal nanoparticles, magnetic nanoparticles, DNA walkers, and DNA logic gates. Signal amplification technologies including nucleic acid isothermal amplification, hybridization chain reaction, catalytic hairpin assembly, biological barcodes, and microfluidic system are combined with functional nucleic acids sensors and applied to the detection of many foodborne hazardous substances, such as foodborne pathogens, mycotoxins, residual antibiotics, residual pesticides, industrial pollutants, heavy metals, and allergens. Finally, the potential opportunities and broad prospects of functional nucleic acids biosensors in the field of food analysis are discussed.
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Affiliation(s)
- Zijie Chen
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, the People's Republic of China
| | - Zhen Liu
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, the People's Republic of China
| | - Jingjing Liu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, the People's Republic of China
| | - Xilin Xiao
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, the People's Republic of China
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, the People's Republic of China
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Podunavac I, Kukkar M, Léguillier V, Rizzotto F, Pavlovic Z, Janjušević L, Costache V, Radonic V, Vidic J. Low-cost goldleaf electrode as a platform for Escherichia coli immunodetection. Talanta 2023; 259:124557. [PMID: 37080072 DOI: 10.1016/j.talanta.2023.124557] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/06/2023] [Accepted: 04/12/2023] [Indexed: 04/22/2023]
Abstract
Gold electrodes are one of most prevalent substrates in electrochemical biosensors because they can be easily and highly efficiently functionalized with thiolated biomolecules. However, conventional methods to fabricate gold electrodes are costly, time-consuming and require onerous equipment. Here, an affordable method for rapid fabrication of an electrochemical immunosensor for Escherichia coli detection is presented. The gold electrode was generated using 24-karat gold leaves and lowcost polyvinyl chloride adhesive sheets covered with an insulating PTFE layer. The goldleaf electrode (GLE) was patterned using laser ablation and characterized by cyclic voltammetry, electrochemical impedance spectroscopy, scanning electronic microscopy, contact angle and 3D profiling. The GLEs were modified by a self-assembled mercaptopropionic monolayer, followed by surface activation to allow binding of the specific anti-E. coli antibody via carbodiimide linking. The biosensor showed a detection limit of 2 CFU/mL and a linear dynamic range of 10-107 CFU/mL for E. coli cells. No false positive signals were obtained from control bacteria. The obtained results demonstrated suitability of GLE for use in biosensors with high reliability and reproducibility. It is foreseeable that our work will inspire design of point-of-need biosensors broadly applicable in low-resource settings.
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Affiliation(s)
- Ivana Podunavac
- University of Novi Sad, BioSense Institute, 21000 Novi Sad, Serbia
| | - Manil Kukkar
- University of Novi Sad, BioSense Institute, 21000 Novi Sad, Serbia
| | - Vincent Léguillier
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, UMR 1319, 78350 Jouy-en-Josas, France
| | - Francesco Rizzotto
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, UMR 1319, 78350 Jouy-en-Josas, France
| | - Zoran Pavlovic
- University of Novi Sad, BioSense Institute, 21000 Novi Sad, Serbia
| | | | - Vlad Costache
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, UMR 1319, 78350 Jouy-en-Josas, France; MIMA2 Imaging Core Facility, Microscopie et Imagerie des Microorganismes, Animaux et Aliments, INRAE, 78350, Jouy-en-Josas, France
| | - Vasa Radonic
- University of Novi Sad, BioSense Institute, 21000 Novi Sad, Serbia.
| | - Jasmina Vidic
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, UMR 1319, 78350 Jouy-en-Josas, France.
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6
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Du H, Chen G, Wang J. Highly selective electrochemical impedance spectroscopy-based graphene electrode for rapid detection of microplastics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 862:160873. [PMID: 36521612 DOI: 10.1016/j.scitotenv.2022.160873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/05/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
The widespread occurrence of microplastics (MPs) in aquatic ecosystems that caused environmental pollution has attracted worldwide attention. Herein, graphene electrode was initially derived from petroleum waste. Then the electrochemical responses of the electrode were evaluated using electrochemical impedance spectroscopy (EIS) toward polystyrene (PS) under various optimum conditions. For the quantitative measurement of PS concentration, principal component analysis (PCA) score images displayed that the data points offered the best discrimination of the classes, and singular value decomposition (SVD) showed that a good linearity was achieved between Z"u(1) and lgCps in the concentration range of 0.01-25 mg L-1. Especially for PS with particle size of 1 μm, the highest correlation coefficient (R2 = 0.9914) was obtained. The sensor ability to determine the polystyrene concentration in real samples was evaluated with the recovery of 98.4-113.3 % and reliable reproducibility (RSD < 9.72 %). For the quantitative measurement of the particle size of PS, SVD images exhibited that a linearity was obtained between Z'u(1)and lgDps in the particle size range of 0.08-20 μm. A good linearity with R2 = 0.9877 was obtained when the concentration was 1 mg L-1. The recovery was in the range of 100.8-118.0 % with the RSD < 6.38 %. Therefore, a novel method is established for the rapid detection of PS MPs.
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Affiliation(s)
- Hao Du
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Guanglong Chen
- Institute of Eco-Environmental Research, Guangxi Academy of Sciences, Nanning 530007, China
| | - Jun Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; Institute of Eco-Environmental Research, Guangxi Academy of Sciences, Nanning 530007, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangzhou 510006, China.
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7
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Bacteriophage-based nano-biosensors for the fast impedimetric determination of pathogens in food samples. Sci Rep 2023; 13:3498. [PMID: 36859463 PMCID: PMC9977096 DOI: 10.1038/s41598-023-30520-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 02/24/2023] [Indexed: 03/03/2023] Open
Abstract
The early and rapid detection of pathogenic microorganisms is of critical importance in addressing serious public health issues. Here, a new bacteriophage-based nano-biosensor was constructed and the electrochemical impedimetric method was fully optimized and applied for the quantitative detection of Escherichia coli O157:H7 in food samples. The impact of using a nanocomposite consisting of gold nanoparticles (AuNPs), multi-walled carbon nanotubes (MWCNTs), and tungsten oxide nanostructures (WO3) on the electrochemical performance of disposable screen printed electrodes was identified using the cyclic voltammetry and electrochemical impedance spectroscopy. The use nanomaterials enabled high capturing sensitivity against the targeting bacterial host cells with the limit of detection of 3.0 CFU/ml. Moreover, selectivity of the covalently immobilized active phage was tested against several non-targeting bacterial strains, where a high specificity was achieved. Thus, the targeting foodborne pathogen was successfully detected in food samples with high specificity, and the sensor provided an excellent recovery rate ranging from 90.0 to 108%. Accordingly, the newly developed phage-biosensor is recommended as a disposable label-free impedimetric biosensor for the quick and real-time monitoring of food quality.
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8
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Innovations in the synthesis of graphene nanostructures for bio and gas sensors. BIOMATERIALS ADVANCES 2023; 145:213234. [PMID: 36502548 DOI: 10.1016/j.bioadv.2022.213234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 11/11/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
Sensors play a significant role in modern technologies and devices used in industries, hospitals, healthcare, nanotechnology, astronomy, and meteorology. Sensors based upon nanostructured materials have gained special attention due to their high sensitivity, precision accuracy, and feasibility. This review discusses the fabrication of graphene-based biosensors and gas sensors, which have highly efficient performance. Significant developments in the synthesis routes to fabricate graphene-based materials with improved structural and surface properties have boosted their utilization in sensing applications. The higher surface area, better conductivity, tunable structure, and atom-thick morphology of these hybrid materials have made them highly desirable for the fabrication of flexible and stable sensors. Many publications have reported various modification approaches to improve the selectivity of these materials. In the current work, a compact and informative review focusing on the most recent developments in graphene-based biosensors and gas sensors has been designed and delivered. The research community has provided a complete critical analysis of the most robust case studies from the latest fabrication routes to the most complex challenges. Some significant ideas and solutions have been proposed to overcome the limitations regarding the field of biosensors and hazardous gas sensors.
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Neumair J, Elsner M, Seidel M. Flow-Based Chemiluminescence Microarrays as Screening Platform for Affinity Binders to Capture and Elute Bacteria. SENSORS (BASEL, SWITZERLAND) 2022; 22:8606. [PMID: 36433201 PMCID: PMC9693076 DOI: 10.3390/s22228606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
Affinity describes the non-covalent but selective interaction between an affinity binder (e.g., proteins, antibiotics, or antibodies) and its counterpart (e.g., bacteria). These affinity binders can serve to detect bacteria and respond to the need for selective concentration via affinity chromatography for trace analysis. By changing the pH value or salt and protein contents, affinity bindings can be reversed, and bacteria can be recovered for characterisation. Analytical microarrays use multiple affinity binders immobilised on the surface in a distinct pattern, which immensely reduces screening time for the discovery of superior binding motifs. Here, flow-based microarray systems can inform not only about binding, but also about desorption. In this work, we pioneer a screening assay for affinity binders against both gram-positive and negative bacteria based on an automated flow-based chemiluminescence (CL) microarray. Biotinylation of model organisms E. coli and E. faecalis enabled labelling with horseradish-peroxidase-coupled streptavidin, and detection with CL. Polymyxin B, an antibiotic against gram-negative bacteria, was found to bind both E. coli and E. faecalis. Simultaneous screening for desorption methods unexpectedly revealed methyl alpha-D-mannopyranoside as a promising buffer for desorption from Polymyxin B. This proof-of-principle study shows that our new platform greatly facilitates the screening of new affinity binders against bacteria, with promise for future automation.
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Hassan RYA. Advances in Electrochemical Nano-Biosensors for Biomedical and Environmental Applications: From Current Work to Future Perspectives. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22197539. [PMID: 36236638 PMCID: PMC9573286 DOI: 10.3390/s22197539] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 05/17/2023]
Abstract
Modern life quality is strongly supported by the advances made in biosensors, which has been attributed to their crucial and viable contribution in point-of-care (POC) technology developments. POC devices are exploited for the fast tracing of disease progression, rapid analysis of water, and food quality assessment. Blood glucose meters, home pregnancy strips, and COVID-19 rapid tests all represent common examples of successful biosensors. Biosensors can provide great specificity due to the incorporation of selective bio-recognition elements and portability at significantly reduced costs. Electrochemical biosensor platforms are one of the most advantageous of these platforms because they offer many merits, such as being cheap, selective, specific, rapid, and portable. Furthermore, they can be incorporated into smartphones and various analytical approaches in order to increase their sensitivity and many other properties. As a very broad and interdisciplinary area of research and development, biosensors include all disciplines and backgrounds from materials science, chemistry, physics, medicine, microbiology/biology, and engineering. Accordingly, in this state-of-the-art article, historical background alongside the long journey of biosensing construction and development, starting from the Clark oxygen electrode until reaching highly advanced wearable stretchable biosensing devices, are discussed. Consequently, selected examples among the miscellaneous applications of nanobiosensors (such as microbial detection, cancer diagnosis, toxicity analysis, food quality-control assurance, point of care, and health prognosis) are described. Eventually, future perspectives for intelligent biosensor commercialization and exploitation in real-life that is going to be supported by machine learning and artificial intelligence (AI) are stated.
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Affiliation(s)
- Rabeay Y. A. Hassan
- Applied Organic Chemistry Department, National Research Centre Dokki, Cairo 12622, Egypt; ; Tel.: +20-11292-16152
- Nanoscience Program, University of Science and Technology (UST), Zewail City of Science and Technology, Giza 12578, Egypt
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A novel portable label-free electrochemical immunosensor for ultrasensitive detection of Aeromonas salmonicida in aquaculture seawater. Anal Bioanal Chem 2022; 414:6591-6600. [PMID: 35915251 DOI: 10.1007/s00216-022-04219-9] [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: 04/21/2022] [Revised: 06/28/2022] [Accepted: 07/04/2022] [Indexed: 11/01/2022]
Abstract
Infectious diseases caused by Aeromonas salmonicida (A. salmonicida) have a huge impact and produce significant losses in aquaculture and fish farming. Fish pathogen early detection is a critical step for the rapid identification and prevention of these problems. This work presents a novel portable label-free ultrasensitive electrochemical immunosensor for A. salmonicida detection in seawater. It consists of a fluidic integrated electrochemical-cell-chip (ECC) with independent chambers enclosing three electrochemical cells (ECs). Anti-A. salmonicida (AbSalm) antibodies were covalently attached to the gold surface of the microfabricated electrodes and were used for the sensitive detection of A. salmonicida. The antibody-antigen immunoreaction was studied by enzyme-linked immunosorbent assay (ELISA), and the surface functionalization was characterized by using quartz crystal microbalance (QCM), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS). The performance of the developed immunosensor, in terms of sensitivity, repeatability, and specificity, was also studied. The linear working range varied between 1 and 107 CFU mL-1, with a limit of detection (LOD) as low as 1 CFU mL-1. The suitability of the immunosensor for real sample detection was successfully demonstrated via recovery studies performed in spiked seawater samples. The proposed technology supports the use of low-cost and portable instrumentation that concedes the ultrasensitive, simple, and fast quantification of the A. salmonicida. To the best of our knowledge, this is the first portable sensing system for the detection of A. salmonicida in seawater samples, which provides a promising online monitoring platform for the detection of this bacterium in aquaculture facilities.
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12
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Fundamentals of Biosensors and Detection Methods. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1379:3-29. [PMID: 35760986 DOI: 10.1007/978-3-031-04039-9_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Biosensors have a great impact on our society to enhance the life quality, playing an important role in the development of Point-of-Care (POC) technologies for rapid diagnostics, and monitoring of disease progression. COVID-19 rapid antigen tests, home pregnancy tests, and glucose monitoring sensors represent three examples of successful biosensor POC devices. Biosensors have extensively been used in applications related to the control of diseases, food quality and safety, and environment quality. They can provide great specificity and portability at significantly reduced costs. In this chapter are described the fundamentals of biosensors including the working principles, general configurations, performance factors, and their classifications according to the type of bioreceptors and transducers. It is also briefly illustrated the general strategies applied to immobilize biorecognition elements on the transducer surface for the construction of biosensors. Moreover, the principal detection methods used in biosensors are described, giving special emphasis on optical, electrochemical, and mass-based methods. Finally, the challenges for biosensing in real applications are addressed at the end of this chapter.
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13
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Gangwar R, Ray D, Rao KT, Khatun S, Subrahmanyam C, Rengan AK, Vanjari SRK. Plasma Functionalized Carbon Interfaces for Biosensor Application: Toward the Real-Time Detection of Escherichia coli O157: H7. ACS OMEGA 2022; 7:21025-21034. [PMID: 35755381 PMCID: PMC9219096 DOI: 10.1021/acsomega.2c01802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Nonthermal plasma, a nondestructive, fast, and highly reproducible surface functionalization technique, was used to introduce desired functional groups onto the surface of carbon powder. The primary benefit is that it is highly scalable, with a high throughput, making it easily adaptable to bulk production. The plasma functionalized carbon powder was later used to create highly specific and low-cost electrochemical biosensors. The functional groups on the carbon surface were confirmed using NH3-temperature-programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS) analysis. In addition, for biosensing applications, a novel, cost-effective, robust, and scalable electrochemical sensor platform comprising in-house-fabricated carbon paste electrodes and a miniaturized E-cell was developed. Biotin-Streptavidin was chosen as a model ligand-analyte combination to demonstrate its applicability toward biosensor application, and then, the specific identification of the target Escherchia coli O157:H7 was accomplished using an anti-E. coli O157:H7 antibody-modified electrode. The proposed biosensing platform detected E. coli O157:H7 in a broad linear range of (1 × 10-1-1 × 106) CFU/mL, with a limit of detection (LOD) of 0.1 CFU/mL. In addition, the developed plasma functionalized carbon paste electrodes demonstrated high specificity for the target E. coli O157:H7 spiked in pond water, making them ideal for real-time bacterial detection.
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Affiliation(s)
- Rahul Gangwar
- Department
of Electrical Engineering, Indian Institute
of Technology Hyderabad, Hyderabad 502284, India
| | - Debjyoti Ray
- Department
of Chemistry, Indian Institute of Technology
Hyderabad, Hyderabad 502284, India
- Department
of Chemistry, The Chinese University of
Hong Kong, Shatin, NT 00000, Hong Kong SAR, China
| | - Karri Trinadha Rao
- Department
of Electrical Engineering, Indian Institute
of Technology Hyderabad, Hyderabad 502284, India
| | - Sajmina Khatun
- Department
of Biomedical Engineering, Indian Institute
of Technology Hyderabad, Hyderabad 502284, India
| | | | - Aravind Kumar Rengan
- Department
of Biomedical Engineering, Indian Institute
of Technology Hyderabad, Hyderabad 502284, India
| | - Siva Rama Krishna Vanjari
- Department
of Electrical Engineering, Indian Institute
of Technology Hyderabad, Hyderabad 502284, India
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Ropero-Vega JL, Redondo-Ortega JF, Rodríguez-Caicedo JP, Rondón-Villarreal P, Flórez-Castillo JM. New PEPTIR-2.0 Peptide Designed for Use as Recognition Element in Electrochemical Biosensors with Improved Specificity towards E. coli O157:H7. Molecules 2022; 27:molecules27092704. [PMID: 35566054 PMCID: PMC9105347 DOI: 10.3390/molecules27092704] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 12/05/2022] Open
Abstract
The detection of pathogens through alternative methodologies based on electrochemical biosensors is being studied. These devices exhibit remarkable properties, such as simplicity, specificity, and high sensitivity in monitoring pathogens. However, it is necessary to continue conducting studies that adequately improve these characteristics, especially the recognition molecule. This work aims to design and evaluate a new peptide, named PEPTIR-2.0, as a recognition molecule in electrochemical biosensors to detect E. coli O157:H7 in water. PEPTIR-2.0 was obtained from modifications of the PEPTIR-1.0 peptide sequence, which was previously reported and exhibited excellent properties for detecting and quantifying this pathogenic microorganism. PEPTIR-1.0 is a peptide analogous to the TIR (Translocated Intimin Receptor) protein capable of interacting with the Intimin outer membrane. The basis of this study was to obtain, by using bioinformatics tools, a molecule analogous to PEPTIR-1.0 that maintains its three-dimensional structure but increases the hydrophobic interactions between it and Intimin, since these intermolecular forces are the predominant ones. The designed PEPTIR-2.0 peptide was immobilized on screen-printed electrodes modified with gold nanoparticles. The detection capacity of E. coli O157:H7 in water was evaluated using electrochemical impedance spectroscopy in the presence of other microorganisms, such as P. aeruginosa, S. aureus, and non-pathogenic E. coli. The results showed that PEPTIR-2.0 confers remarkable specificity to the biosensor towards detecting E. coli, even higher than PEPTIR-1.0.
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Affiliation(s)
- Jose Luis Ropero-Vega
- Universidad de Santander, Facultad de Ciencias Naturales, Ciencias Básicas y Aplicadas Para la Sostenibilidad—CIBAS, Calle 70 No. 55-210, Santander, Bucaramanga C.P. 680003, Colombia; (J.F.R.-O.); (J.P.R.-C.); (J.M.F.-C.)
- Correspondence: or ; Tel.: +57-7-6516500 (ext. 1665)
| | - Joshua Felipe Redondo-Ortega
- Universidad de Santander, Facultad de Ciencias Naturales, Ciencias Básicas y Aplicadas Para la Sostenibilidad—CIBAS, Calle 70 No. 55-210, Santander, Bucaramanga C.P. 680003, Colombia; (J.F.R.-O.); (J.P.R.-C.); (J.M.F.-C.)
| | - Juliana Paola Rodríguez-Caicedo
- Universidad de Santander, Facultad de Ciencias Naturales, Ciencias Básicas y Aplicadas Para la Sostenibilidad—CIBAS, Calle 70 No. 55-210, Santander, Bucaramanga C.P. 680003, Colombia; (J.F.R.-O.); (J.P.R.-C.); (J.M.F.-C.)
| | - Paola Rondón-Villarreal
- Universidad de Santander, Facultad de Ciencias Médicas y de la Salud, Instituto de Investigación Masira, Calle 70 No. 55-210, Santander, Bucaramanga C.P. 680003, Colombia;
| | - Johanna Marcela Flórez-Castillo
- Universidad de Santander, Facultad de Ciencias Naturales, Ciencias Básicas y Aplicadas Para la Sostenibilidad—CIBAS, Calle 70 No. 55-210, Santander, Bucaramanga C.P. 680003, Colombia; (J.F.R.-O.); (J.P.R.-C.); (J.M.F.-C.)
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15
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Spatially hierarchical nano-architecture for real time detection of Interleukin-8 cancer biomarker. Talanta 2022; 246:123436. [PMID: 35489096 DOI: 10.1016/j.talanta.2022.123436] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 12/17/2022]
Abstract
In the present work we have developed two hierarchical nano-architectures based electrochemical immunosensors for the detection of interleukin-8 (IL-8) cytokine tumor biomarker. A comparative study has been performed for spatial nano-architectures and their relative sensing to establish the model for real time monitoring. With the first platform, the recognition layer consisted with immobilised IL-8 on aminothiol modified gold electrodes. In the second approach, the activated multi walled carbon nanotubes (MWCNT-COOH) were added in the functionalisation process by covalent attachment between the functionalities NH2 of aminothiol and the functionalities COOH of carbon nanotubes. The surface topology of the recognition layer has been characterised by atomic force spectroscopy (AFM) and contact angle (CA) measurements. The electrochemical response of the developed sensor was measured by electrochemical impedance spectroscopy (EIS). A side-by-side comparison showed that aminothiol/activated MWCNTs/anti-IL-8 based impedimetric immunosensor exhibits high reproducibility (The relative standard deviation (R.S.D) = 3.2%, n = 3) with high stability. The present sensor allows evaluating a lower detection limit of 0.1 pg mL-1 with a large dynamic sensitivity range from 1 pg mL-1to 1000 pg mL-1 covering the entire clinical therapeutic window. The developed MWCNTs based immunosensor has been calibrated by determining IL-8 in artificial plasma and showed a selective response to IL-8 even in the interfering environment of other cytokines such as Interleukin-1 (IL-1) and Interleukin-6 (IL-6).
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16
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Gopal A, Yan L, Kashif S, Munshi T, Roy VAL, Voelcker NH, Chen X. Biosensors and Point-of-Care Devices for Bacterial Detection: Rapid Diagnostics Informing Antibiotic Therapy. Adv Healthc Mater 2022; 11:e2101546. [PMID: 34850601 DOI: 10.1002/adhm.202101546] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/20/2021] [Indexed: 02/06/2023]
Abstract
With an exponential rise in antimicrobial resistance and stagnant antibiotic development pipeline, there is, more than ever, a crucial need to optimize current infection therapy approaches. One of the most important stages in this process requires rapid and effective identification of pathogenic bacteria responsible for diseases. Current gold standard techniques of bacterial detection include culture methods, polymerase chain reactions, and immunoassays. However, their use is fraught with downsides with high turnaround time and low accuracy being the most prominent. This imposes great limitations on their eventual application as point-of-care devices. Over time, innovative detection techniques have been proposed and developed to curb these drawbacks. In this review, a systematic summary of a range of biosensing platforms is provided with a strong focus on technologies conferring high detection sensitivity and specificity. A thorough analysis is performed and the benefits and drawbacks of each type of biosensor are highlighted, the factors influencing their potential as point-of-care devices are discussed, and the authors' insights for their translation from proof-of-concept systems into commercial medical devices are provided.
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Affiliation(s)
- Ashna Gopal
- School of Engineering Institute for Bioengineering The University of Edinburgh Edinburgh EH9 3JL UK
| | - Li Yan
- College of Health Science and Environmental Engineering Shenzhen Technology University Shenzhen 518118 China
| | - Saima Kashif
- School of Engineering Institute for Bioengineering The University of Edinburgh Edinburgh EH9 3JL UK
| | - Tasnim Munshi
- School of Chemistry University of Lincoln, Brayford Pool Lincoln Lincolnshire LN6 7TS UK
| | | | - Nicolas H. Voelcker
- Drug Delivery Disposition and Dynamics Monash Institute of Pharmaceutical Sciences Monash University Parkville Victoria VIC 3052 Australia
- Melbourne Centre for Nanofabrication Victorian Node of the Australian National Fabrication Facility Clayton Victoria 3168 Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Clayton Victoria 3168 Australia
| | - Xianfeng Chen
- School of Engineering Institute for Bioengineering The University of Edinburgh Edinburgh EH9 3JL UK
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17
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Caballero D, Reis RL, Kundu SC. Current Trends in Microfluidics and Biosensors for Cancer Research Applications. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1379:81-112. [DOI: 10.1007/978-3-031-04039-9_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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18
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Wang X, Zhang Z, Wu G, Xu C, Wu J, Zhang X, Liu J. Applications of electrochemical biosensors based on functional antibody-modified screen-printed electrodes: a review. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 14:7-16. [PMID: 34877580 DOI: 10.1039/d1ay01570b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The detection of biomolecular analytes is of great importance in clinical, environmental, and argo-food areas, among which the electrochemical methodology is attracting much attention. In particular, screen-printed electrode (SPE)-based sensing applications have exhibited potential possibility for on-site detection, especially for fast clinical biomarker detection, since they provide a miniaturized but robust and portable electrode detection system. In this context, we focused on the modification of SPE with functional antibodies to improve the electrochemical detection performance in versatile sensing applications, particularly for COVID-19 detection. These antibodies were immobilized onto the electrode surface via various methodologies, through which the powerful potential from the modification of SPE was revealed. Finally, more novel and excellent works on the biomolecular modification of SPE and the prospects of this technology from its state-of-art status to commercialization are previewed and future perspectives in this field are mentioned.
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Affiliation(s)
- Xuyao Wang
- Precision Medicine Center, Beilun People's Hospital, Zhejiang University School of Medicine First Affiliated Hospital Beilun Branch, Ningbo, Zhejiang, 315806, P. R. China.
| | - Zhenqi Zhang
- Precision Medicine Center, Beilun People's Hospital, Zhejiang University School of Medicine First Affiliated Hospital Beilun Branch, Ningbo, Zhejiang, 315806, P. R. China.
| | - Guolin Wu
- Precision Medicine Center, Beilun People's Hospital, Zhejiang University School of Medicine First Affiliated Hospital Beilun Branch, Ningbo, Zhejiang, 315806, P. R. China.
| | - Chunxia Xu
- Precision Medicine Center, Beilun People's Hospital, Zhejiang University School of Medicine First Affiliated Hospital Beilun Branch, Ningbo, Zhejiang, 315806, P. R. China.
| | - Jianping Wu
- Department of Clinical Laboratory, Zhejiang University School of Medicine First Affiliated Hospital, Hangzhou, Zhejiang, 310003, P. R. China
| | - Xingguo Zhang
- Precision Medicine Center, Beilun People's Hospital, Zhejiang University School of Medicine First Affiliated Hospital Beilun Branch, Ningbo, Zhejiang, 315806, P. R. China.
| | - Jian Liu
- Precision Medicine Center, Beilun People's Hospital, Zhejiang University School of Medicine First Affiliated Hospital Beilun Branch, Ningbo, Zhejiang, 315806, P. R. China.
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Pandit S, Li M, Chen Y, Rahimi S, Mokkapati V, Merlo A, Yurgens A, Mijakovic I. Graphene-Based Sensor for Detection of Bacterial Pathogens. SENSORS 2021; 21:s21238085. [PMID: 34884089 PMCID: PMC8662450 DOI: 10.3390/s21238085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/24/2021] [Accepted: 11/28/2021] [Indexed: 11/23/2022]
Abstract
Microbial colonization to biomedical surfaces and biofilm formation is one of the key challenges in the medical field. Recalcitrant biofilms on such surfaces cause serious infections which are difficult to treat using antimicrobial agents, due to their complex structure. Early detection of microbial colonization and monitoring of biofilm growth could turn the tide by providing timely guidance for treatment or replacement of biomedical devices. Hence, there is a need for sensors, which could generate rapid signals upon bacterial colonization. In this study, we developed a simple prototype sensor based on pristine, non-functionalized graphene. The detection principle is a change in electrical resistance of graphene upon exposure to bacterial cells. Without functionalization with specific receptors, such sensors cannot be expected to be selective to certain bacteria. However, we demonstrated that two different bacterial species can be detected and differentiated by our sensor due to their different growth dynamics, adherence pattern, density of adhered bacteria and microcolonies formation. These distinct behaviors of tested bacteria depicted distinguishable pattern of resistance change, resistance versus gate voltage plot and hysteresis effect. This sensor is simple to fabricate, can easily be miniaturized, and can be effective in cases when precise identification of species is not needed.
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Affiliation(s)
- Santosh Pandit
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden; (S.P.); (Y.C.); (S.R.); (V.M.); (A.M.)
| | - Mengyue Li
- Department of Microtechnology and Nanoscience, Chalmers University of Technology, 412 96 Göteborg, Sweden; (M.L.); (A.Y.)
| | - Yanyan Chen
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden; (S.P.); (Y.C.); (S.R.); (V.M.); (A.M.)
| | - Shadi Rahimi
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden; (S.P.); (Y.C.); (S.R.); (V.M.); (A.M.)
| | - Vrss Mokkapati
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden; (S.P.); (Y.C.); (S.R.); (V.M.); (A.M.)
| | - Alessandra Merlo
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden; (S.P.); (Y.C.); (S.R.); (V.M.); (A.M.)
| | - August Yurgens
- Department of Microtechnology and Nanoscience, Chalmers University of Technology, 412 96 Göteborg, Sweden; (M.L.); (A.Y.)
| | - Ivan Mijakovic
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden; (S.P.); (Y.C.); (S.R.); (V.M.); (A.M.)
- Novo Nordisk Foundation, Center for Biosustainability, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
- Correspondence: ; Tel.: +46-(0)7-0982-8446
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20
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Andryukov BG, Lyapun IN, Matosova EV, Somova LM. Biosensor Technologies in Medicine: from Detection of Biochemical Markers to Research into Molecular Targets (Review). Sovrem Tekhnologii Med 2021; 12:70-83. [PMID: 34796021 PMCID: PMC8596237 DOI: 10.17691/stm2020.12.6.09] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Indexed: 01/21/2023] Open
Abstract
Infections are a major cause of premature death. Fast and accurate laboratory diagnostics of infectious diseases is a key condition for the timely initiation and success of treatment. Potentially, it can reduce morbidity, as well as prevent the outbreak and spread of dangerous epidemics. The traditional methods of laboratory diagnostics of infectious diseases are quite time- and labour-consuming, require expensive equipment and trained personnel, which is crucial within limited resources. The fast biosensor-based methods that combine the diagnostic capabilities of biomedicine with modern technological advances in microelectronics, optoelectronics, and nanotechnology make an alternative. The modern achievements in the development of label-free biosensors make them promising diagnostic tools that combine rapid detection of specific molecular markers, simplicity, ease-of-use, efficiency, accuracy, and cost-effectiveness with the tendency to the development of portable platforms. These qualities exceed the generally accepted standards of microbiological and immunological diagnostics and open up broad prospects for using these analytical systems in clinical practice directly at the site of medical care provision (point-of-care, POC concept). A wide variety of modern biosensor designs are based on the use of diverse formats of analytical and technological strategies, identification of various regulatory and functional molecular markers associated with infectious pathogens. The solution to the existing problems in biosensing will open up great prospects for these rapidly developing diagnostic biotechnologies.
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Affiliation(s)
- B G Andryukov
- Leading Researcher, Laboratory of Molecular Microbiology; G.P. Somov Institute of Epidemiology and Microbiology, 1 Selskaya St., Vladivostok, 690087, Russia
| | - I N Lyapun
- Researcher, Laboratory of Molecular Microbiology; G.P. Somov Institute of Epidemiology and Microbiology, 1 Selskaya St., Vladivostok, 690087, Russia
| | - E V Matosova
- Junior Researcher, Laboratory of Molecular Microbiology; G.P. Somov Institute of Epidemiology and Microbiology, 1 Selskaya St., Vladivostok, 690087, Russia
| | - L M Somova
- Professor, Chief Researcher, Laboratory of Molecular Microbiology G.P. Somov Institute of Epidemiology and Microbiology, 1 Selskaya St., Vladivostok, 690087, Russia
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21
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Miguéis SDC, Tavares APM, Martins GV, Frasco MF, Sales MGF. Biosensors for European Zoonotic Agents: A Current Portuguese Perspective. SENSORS (BASEL, SWITZERLAND) 2021; 21:4547. [PMID: 34283108 PMCID: PMC8271446 DOI: 10.3390/s21134547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 06/20/2021] [Accepted: 06/25/2021] [Indexed: 01/24/2023]
Abstract
Emerging and recurrent outbreaks caused by zoonotic agents pose a public health risk. They result in morbidity and mortality in humans and significant losses in the livestock and food industries. This highlights the need for rapid surveillance methods. Despite the high reliability of conventional pathogen detection methods, they have high detection limits and are time-consuming and not suitable for on-site analysis. Furthermore, the unpredictable spread of zoonotic infections due to a complex combination of risk factors urges the development of innovative technologies to overcome current limitations in early warning and detection. Biosensing, in particular, is highlighted here, as it offers rapid and cost-effective devices for use at the site of infection while increasing the sensitivity of detection. Portuguese research in biosensors for zoonotic pathogens is the focus of this review. This branch of research produces exciting and innovative devices for the study of the most widespread pathogenic bacteria. The studies presented here relate to the different classes of pathogens whose characteristics and routes of infection are also described. Many advances have been made in recent years, and Portuguese research teams have increased publications in this field. However, biosensing still needs to be extended to other pathogens, including potentially pandemic viruses. In addition, the use of biosensors as part of routine diagnostics in hospitals for humans, in animal infections for veterinary medicine, and food control has not yet been achieved. Therefore, a convergence of Portuguese efforts with global studies on biosensors to control emerging zoonotic diseases is foreseen for the future.
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Affiliation(s)
- Samuel da Costa Miguéis
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal; (A.P.M.T.); (G.V.M.); (M.F.F.)
- Centro de Investigação Desenvolvimento e Inovação da Academia Militar, Academia Militar, Instituto Universitário Militar, 1169-203 Lisboa, Portugal
| | - Ana P. M. Tavares
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal; (A.P.M.T.); (G.V.M.); (M.F.F.)
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Gabriela V. Martins
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal; (A.P.M.T.); (G.V.M.); (M.F.F.)
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Manuela F. Frasco
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal; (A.P.M.T.); (G.V.M.); (M.F.F.)
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Maria Goreti Ferreira Sales
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal; (A.P.M.T.); (G.V.M.); (M.F.F.)
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
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22
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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: 27] [Impact Index Per Article: 9.0] [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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Li C, Sun F. Graphene-Assisted Sensor for Rapid Detection of Antibiotic Resistance in Escherichia coli. Front Chem 2021; 9:696906. [PMID: 34136468 PMCID: PMC8201492 DOI: 10.3389/fchem.2021.696906] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 05/17/2021] [Indexed: 11/13/2022] Open
Abstract
In recent years, antibiotic-resistant bacteria caused by antibiotic abuse in the medical industry have become a new environmental pollutant that endangers public health. Therefore, it is necessary to establish a detection method for evaluating drug-resistant bacteria. In this work, we used Escherichia coli as a target model and proposed a method to evaluate its drug resistance for three antibiotics. Graphene dispersion was used to co-mix with E. coli cells for the purpose of increasing the current signal. This electrochemical-based sensor allows the evaluation of the activity of E. coli on the electrode surface. When antibiotics were present, the electrocatalytic reduction signal was diminished because of the reduced activity of E. coli. Based on the difference in the electrochemical reduction signal, we can evaluate the antibiotic resistance of different E. coli strains.
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Affiliation(s)
- Chunlei Li
- Department of Gastroenterology, Jiaozhou Central Hospital, Jiaozhou, China
| | - Feng Sun
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
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Kwon K, Yoon T, Gwak H, Lee K, Hyun KA, Jung HI. Fully Automated System for Rapid Enrichment and Precise Detection of Enterobacteria Using Magneto-Electrochemical Impedance Measurements. BIOCHIP JOURNAL 2021. [DOI: 10.1007/s13206-021-00024-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Schulze H, Arnott A, Libori A, Obaje EA, Bachmann TT. Temperature-Enhanced mcr-1 Colistin Resistance Gene Detection with Electrochemical Impedance Spectroscopy Biosensors. Anal Chem 2021; 93:6025-6033. [PMID: 33819015 DOI: 10.1021/acs.analchem.0c00666] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Antibiotic resistance is now one of the biggest threats humankind is facing, as highlighted in a declaration by the General Assembly of the United Nations in 2016. In particular, the growing resistance rates of Gram-negative bacteria cause increasing concerns. The occurrence of the easily transferable, plasmid-encoded mcr-1 colistin resistance gene further worsened the situation, significantly enhancing the risk of the occurrence of pan-resistant bacteria. There is therefore a strong demand for new rapid molecular diagnostic tests for the detection of mcr-1 gene-associated colistin resistance. Electrochemical impedance spectroscopy (EIS) is a well-suited method for rapid antimicrobial resistance detection as it enables rapid, label-free target detection in a cost-efficient manner. Here, we describe the development of an EIS-based mcr-1 gene detection test, including the design of mcr-1-specific peptide nucleic acid probes and assay specificity optimization through temperature-controlled real-time kinetic EIS measurements. A new flow cell measurement setup enabled for the first time detailed real-time, kinetic temperature-controlled hybridization and dehybridization studies of EIS-based nucleic acid biosensors. The temperature-controlled EIS setup allowed single-nucleotide polymorphism discrimination. Target hybridization at 60 °C enhanced the perfect match/mismatch (PM/MM) discrimination ratio from 2.1 at room temperature to 3.4. A hybridization and washing temperature of 55 °C further increased the PM/MM discrimination ratio to 5.7 by diminishing the mismatch signal during the washing step while keeping the perfect match signal. This newly developed mcr-1 gene detection test enabled the direct, specific label, and amplification-free detection of mcr-1 gene harboring plasmids from Escherichia coli.
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Affiliation(s)
- Holger Schulze
- Infection Medicine, Edinburgh Medical School, College of Medicine and Veterinary Medicine, The University of Edinburgh, Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, U.K
| | - Andrew Arnott
- Infection Medicine, Edinburgh Medical School, College of Medicine and Veterinary Medicine, The University of Edinburgh, Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, U.K
| | - Adriana Libori
- Infection Medicine, Edinburgh Medical School, College of Medicine and Veterinary Medicine, The University of Edinburgh, Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, U.K
| | - Eleojo A Obaje
- Infection Medicine, Edinburgh Medical School, College of Medicine and Veterinary Medicine, The University of Edinburgh, Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, U.K
| | - Till T Bachmann
- Infection Medicine, Edinburgh Medical School, College of Medicine and Veterinary Medicine, The University of Edinburgh, Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, U.K
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Jenie SNA, Kusumastuti Y, Krismastuti FSH, Untoro YM, Dewi RT, Udin LZ, Artanti N. Rapid Fluorescence Quenching Detection of Escherichia coli Using Natural Silica-Based Nanoparticles. SENSORS 2021; 21:s21030881. [PMID: 33525564 PMCID: PMC7865786 DOI: 10.3390/s21030881] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/25/2021] [Accepted: 01/25/2021] [Indexed: 02/07/2023]
Abstract
The development of fluorescent silica nanoparticles (SNP-RB) from natural amorphous silica and its performance as an Escherichia coli (E. coli) biosensor is described in this paper. SNP-RB was derived from silica recovered from geothermal installation precipitation and modified with the dye, Rhodamine B. The Fourier Infrared (FTIR) confirms the incorporation of Rhodamine B in the silica matrix. Transmission Electron Microscopy (TEM) micrographs show that the SNP-RB had an irregular structure with a particle diameter of about 20-30 nm. The maximum fluorescence spectrum of SNP-RB was recorded at 580 nm, which was further applied to observe the detection performance of the fluorescent nanoparticles towards E. coli. The sensing principle was based on the fluorescence-quenching mechanism of SNP-RB and this provided a wide linear E. coli concentration range of 10-105 CFU/mL with a limit detection of 8 CFU/mL. A rapid response time was observed after only 15 min of incubation of SNP-RB with E. coli. The selectivity of the biosensor was demonstrated and showed that the SNP-RB only gave quenching response only to live E. coli bacteria. The use of SNP-RB as a sensing platform reduced the response time significantly compared to conventional 3-day bacterial assays, as well having excellent analytical performance in terms of sensitivity and selectivity.
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Affiliation(s)
- S. N. Aisyiyah Jenie
- Research Center for Chemistry, Indonesian Institute of Sciences—LIPI, Building 452, Kawasan Puspiptek, Tangerang Selatan, Banten 15314, Indonesia; (F.S.H.K.); (Y.M.U.); (R.T.D.); (L.Z.U.); (N.A.)
- Correspondence: (S.N.A.J.); (Y.K.); Tel.: +62-21-7560929 (S.N.A.J.); +62-274-513665 (Y.K.)
| | - Yuni Kusumastuti
- Department of Chemical Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika No. 2, Yogyakarta 55281, Indonesia
- Correspondence: (S.N.A.J.); (Y.K.); Tel.: +62-21-7560929 (S.N.A.J.); +62-274-513665 (Y.K.)
| | - Fransiska S. H. Krismastuti
- Research Center for Chemistry, Indonesian Institute of Sciences—LIPI, Building 452, Kawasan Puspiptek, Tangerang Selatan, Banten 15314, Indonesia; (F.S.H.K.); (Y.M.U.); (R.T.D.); (L.Z.U.); (N.A.)
| | - Yovilianda M. Untoro
- Research Center for Chemistry, Indonesian Institute of Sciences—LIPI, Building 452, Kawasan Puspiptek, Tangerang Selatan, Banten 15314, Indonesia; (F.S.H.K.); (Y.M.U.); (R.T.D.); (L.Z.U.); (N.A.)
| | - Rizna T. Dewi
- Research Center for Chemistry, Indonesian Institute of Sciences—LIPI, Building 452, Kawasan Puspiptek, Tangerang Selatan, Banten 15314, Indonesia; (F.S.H.K.); (Y.M.U.); (R.T.D.); (L.Z.U.); (N.A.)
| | - Linar Z. Udin
- Research Center for Chemistry, Indonesian Institute of Sciences—LIPI, Building 452, Kawasan Puspiptek, Tangerang Selatan, Banten 15314, Indonesia; (F.S.H.K.); (Y.M.U.); (R.T.D.); (L.Z.U.); (N.A.)
| | - Nina Artanti
- Research Center for Chemistry, Indonesian Institute of Sciences—LIPI, Building 452, Kawasan Puspiptek, Tangerang Selatan, Banten 15314, Indonesia; (F.S.H.K.); (Y.M.U.); (R.T.D.); (L.Z.U.); (N.A.)
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Brodowski M, Kowalski M, Skwarecka M, Pałka K, Skowicki M, Kula A, Lipiński T, Dettlaff A, Ficek M, Ryl J, Dziąbowska K, Nidzworski D, Bogdanowicz R. Highly selective impedimetric determination of Haemophilus influenzae protein D using maze-like boron-doped carbon nanowall electrodes. Talanta 2021; 221:121623. [DOI: 10.1016/j.talanta.2020.121623] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/27/2020] [Accepted: 08/31/2020] [Indexed: 12/22/2022]
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Ajish JK, Abraham HM, Subramanian M, Kumar KSA. A Reusable Column Method Using Glycopolymer-Functionalized Resins for Capture-Detection of Proteins and Escherichia coli. Macromol Biosci 2020; 21:e2000342. [PMID: 33336880 DOI: 10.1002/mabi.202000342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/27/2020] [Indexed: 11/08/2022]
Abstract
The use of glycopolymer-functionalized resins (Resin-Glc), as a solid support, in column mode for bacterial/protein capture and quantification is explored. The Resin-Glc is synthesized from commercially available chloromethylated polystyrene resin and glycopolymer, and is characterized by fourier transform infrared spectroscopy, thermogravimetry, and elemental analysis. The percentage of glycopolymer functionalized on Resin-Glc is accounted to be 5 wt%. The ability of Resin-Glc to selectively capture lectin, Concanavalin A, over Peanut Agglutinin, reversibly, is demonstrated for six cycles of experiments. The bacterial sequestration study using SYBR (Synergy Brands, Inc.) Green I tagged Escherichia coli/Staphylococcus aureus reveals the ability of Resin-Glc to selectively capture E. coli over S. aureus. The quantification of captured cells in the column is carried out by enzymatic colorimetric assay using methylumbelliferyl glucuronide as the substrate. The E. coli capture studies reveal a consistent capture efficiency of 105 CFU (Colony Forming Units) g-1 over six cycles. Studies with spiked tap water samples show satisfactory results for E. coli cell densities ranging from 102 to 107 CFU mL-1 . The method portrayed can serve as a basis for the development of a reusable solid support in capture and detection of proteins and bacteria.
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Affiliation(s)
- Juby K Ajish
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Hephziba Maria Abraham
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi, 682020, India
| | - Mahesh Subramanian
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - K S Ajish Kumar
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
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29
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Hillman Y, Gershberg J, Lustiger D, Even D, Braverman D, Dror Y, Ashur I, Vernick S, Sal-Man N, Wine Y. Monoclonal Antibody-Based Biosensor for Point-of-Care Detection of Type III Secretion System Expressing Pathogens. Anal Chem 2020; 93:928-935. [DOI: 10.1021/acs.analchem.0c03621] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yaron Hillman
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Green building, Tel-Aviv University, Tel Aviv 6997801, Israel
| | - Jenia Gershberg
- Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva 8410501, Israel
| | - Dan Lustiger
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Green building, Tel-Aviv University, Tel Aviv 6997801, Israel
| | - Dan Even
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Green building, Tel-Aviv University, Tel Aviv 6997801, Israel
| | - Dor Braverman
- Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva 8410501, Israel
| | - Yael Dror
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Green building, Tel-Aviv University, Tel Aviv 6997801, Israel
| | - Idan Ashur
- Institute of Agricultural Engineering, Agricultural Research Organization, Volcani Center, 68 Hamaccabim Rd, Rishon Lezion 5025001, Israel
| | - Sefi Vernick
- Institute of Agricultural Engineering, Agricultural Research Organization, Volcani Center, 68 Hamaccabim Rd, Rishon Lezion 5025001, Israel
| | - Neta Sal-Man
- Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva 8410501, Israel
| | - Yariv Wine
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Green building, Tel-Aviv University, Tel Aviv 6997801, Israel
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Chalklen T, Jing Q, Kar-Narayan S. Biosensors Based on Mechanical and Electrical Detection Techniques. SENSORS (BASEL, SWITZERLAND) 2020; 20:E5605. [PMID: 33007906 PMCID: PMC7584018 DOI: 10.3390/s20195605] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/18/2020] [Accepted: 09/23/2020] [Indexed: 12/20/2022]
Abstract
Biosensors are powerful analytical tools for biology and biomedicine, with applications ranging from drug discovery to medical diagnostics, food safety, and agricultural and environmental monitoring. Typically, biological recognition receptors, such as enzymes, antibodies, and nucleic acids, are immobilized on a surface, and used to interact with one or more specific analytes to produce a physical or chemical change, which can be captured and converted to an optical or electrical signal by a transducer. However, many existing biosensing methods rely on chemical, electrochemical and optical methods of identification and detection of specific targets, and are often: complex, expensive, time consuming, suffer from a lack of portability, or may require centralised testing by qualified personnel. Given the general dependence of most optical and electrochemical techniques on labelling molecules, this review will instead focus on mechanical and electrical detection techniques that can provide information on a broad range of species without the requirement of labelling. These techniques are often able to provide data in real time, with good temporal sensitivity. This review will cover the advances in the development of mechanical and electrical biosensors, highlighting the challenges and opportunities therein.
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Affiliation(s)
| | - Qingshen Jing
- Department of Materials Science, University of Cambridge, Cambridge CB3 0FS, UK;
| | - Sohini Kar-Narayan
- Department of Materials Science, University of Cambridge, Cambridge CB3 0FS, UK;
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31
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Jamal RB, Shipovskov S, Ferapontova EE. Electrochemical Immuno- and Aptamer-Based Assays for Bacteria: Pros and Cons over Traditional Detection Schemes. SENSORS (BASEL, SWITZERLAND) 2020; 20:E5561. [PMID: 32998409 PMCID: PMC7582323 DOI: 10.3390/s20195561] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/15/2020] [Accepted: 09/23/2020] [Indexed: 01/20/2023]
Abstract
Microbiological safety of the human environment and health needs advanced monitoring tools both for the specific detection of bacteria in complex biological matrices, often in the presence of excessive amounts of other bacterial species, and for bacteria quantification at a single cell level. Here, we discuss the existing electrochemical approaches for bacterial analysis that are based on the biospecific recognition of whole bacterial cells. Perspectives of such assays applications as emergency-use biosensors for quick analysis of trace levels of bacteria by minimally trained personnel are argued.
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Affiliation(s)
| | | | - Elena E. Ferapontova
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University Gustav Wieds Vej 14, DK-8000 Aarhus, Denmark; (R.B.J.); (S.S.)
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32
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Jung T, Jung Y, Ahn J, Yang S. Continuous, rapid concentration of foodborne bacteria (Staphylococcus aureus, Salmonella typhimurium, and Listeria monocytogenes) using magnetophoresis-based microfluidic device. Food Control 2020. [DOI: 10.1016/j.foodcont.2020.107229] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Cesewski E, Johnson BN. Electrochemical biosensors for pathogen detection. Biosens Bioelectron 2020; 159:112214. [PMID: 32364936 PMCID: PMC7152911 DOI: 10.1016/j.bios.2020.112214] [Citation(s) in RCA: 351] [Impact Index Per Article: 87.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/19/2022]
Abstract
Recent advances in electrochemical biosensors for pathogen detection are reviewed. Electrochemical biosensors for pathogen detection are broadly reviewed in terms of transduction elements, biorecognition elements, electrochemical techniques, and biosensor performance. Transduction elements are discussed in terms of electrode material and form factor. Biorecognition elements for pathogen detection, including antibodies, aptamers, and imprinted polymers, are discussed in terms of availability, production, and immobilization approach. Emerging areas of electrochemical biosensor design are reviewed, including electrode modification and transducer integration. Measurement formats for pathogen detection are classified in terms of sample preparation and secondary binding steps. Applications of electrochemical biosensors for the detection of pathogens in food and water safety, medical diagnostics, environmental monitoring, and bio-threat applications are highlighted. Future directions and challenges of electrochemical biosensors for pathogen detection are discussed, including wearable and conformal biosensors, detection of plant pathogens, multiplexed detection, reusable biosensors for process monitoring applications, and low-cost, disposable biosensors.
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Affiliation(s)
- Ellen Cesewski
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA, 24061, USA; Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Blake N Johnson
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA, 24061, USA; Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA, 24061, USA; Department of Chemical Engineering, Virginia Tech, Blacksburg, VA, 24061, USA.
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34
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You SM, Luo K, Jung JY, Jeong KB, Lee ES, Oh MH, Kim YR. Gold Nanoparticle-Coated Starch Magnetic Beads for the Separation, Concentration, and SERS-Based Detection of E. coli O157:H7. ACS APPLIED MATERIALS & INTERFACES 2020; 12:18292-18300. [PMID: 32242418 DOI: 10.1021/acsami.0c00418] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Here, we report gold nanoparticle-coated starch magnetic beads (AuNP@SMBs) that were prepared by in situ synthesis of AuNPs on the surface of SMBs. Upon functionalization of the surface with a specific antibody, the immuno-AuNP@SMBs were found to be effective in separating and concentrating the target pathogenic bacteria, Escherichia coli O157:H7, from an aqueous sample as well as providing a hotspot for surface-enhanced Raman scattering (SERS)-based detection. We employed a bifunctional linker protein, 4× gold-binding peptide-tagged Streptococcal protein G (4GS), to immobilize antibodies on AuNP@SMBs and AuNPs in an oriented form. The linker protein also served as a Raman reporter, exhibiting a strong and unique fingerprint signal during the SERS measurement. The amplitude of the SERS signal was shown to have a good correlation with the concentration of target bacteria ranging from 100 to 105 CFU/mL. The detection limit was determined to be as low as a single cell, and the background signals derived from nontarget bacteria were negligible due to the excellent specificity and colloidal stability of the immuno-AuNP@SMBs and SERS tags. The highly sensitive nature of the SERS-based detection system will provide a promising means to detect the pathogenic microorganisms in food or clinical specimen.
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Affiliation(s)
- Sang-Mook You
- Graduate School of Biotechnology & Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Korea
| | - Ke Luo
- Graduate School of Biotechnology & Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Korea
| | - Jong-Yun Jung
- Graduate School of Biotechnology & Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Korea
| | - Ki-Baek Jeong
- Graduate School of Biotechnology & Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Korea
| | - Eun-Seon Lee
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Mi-Hwa Oh
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Young-Rok Kim
- Graduate School of Biotechnology & Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Korea
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35
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Abdelrasoul GN, Anwar A, MacKay S, Tamura M, Shah MA, Khasa DP, Montgomery RR, Ko AI, Chen J. DNA aptamer-based non-faradaic impedance biosensor for detecting E. coli. Anal Chim Acta 2020; 1107:135-144. [PMID: 32200887 DOI: 10.1016/j.aca.2020.02.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 01/31/2020] [Accepted: 02/02/2020] [Indexed: 02/07/2023]
Abstract
Developing a real-time, portable, and inexpensive sensor for pathogenic bacteria is crucial since the conventional detection approaches such as enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR) assays are high cost, time-consuming, and require an expert operator. Here we present a portable, inexpensive, and convenient impedance-based biosensor using Interdigitated Electrode (IDE) arrays to detect Escherichia coli (E. coli) as a model to demonstrate the feasibility of an impedance-based biosensor. We manipulated the affinity of the IDE array towards E. coli (E. coli BL21 series) by functionalizing the IDEs' surface with an E. coli outer membrane protein (OMP) Ag1 Aptamer. To determine the dominant factors affecting the sensitivity and the performance of the biosensor in detecting E. coli, we investigated the roles of the substrate material used in the fabrication of the IDE, the concentration of the aptamer, and the composition of the carboxy aliphatic thiol mixture used in the pre-treatment of the IDE surface. In the sensing experiments we used an E. coli concentration range of 25-1000 cfu mL-1 and confirmed the binding of the OMP Ag1 Aptamer to the outer membrane protein of the E. coli by Field Emission Scanning Electron Microscopy (FESEM), Optical Microscopy, and Atomic Force Microscopy (AFM). By tuning the surface chemistry, the IDEs' substrate material, and the concentration of the OMP Ag1 Aptamer, our sensor could detect E. coli with the analytical sensitivity of approximately 1.8 Ohm/cfu and limit of detection of 9 cfu mL-1. We found that the molecular composition of the self-assembled monolayer (SAM) formed on the top of the IDEs before the attachment of the OMP Ag1 Aptamer significantly impacted the sensitivity of the sensor. Notably, with straightforward changes to the molecular recognition elements, this platform device can be used to detect a wide range of other microorganisms and chemicals relevant for environmental monitoring and public health.
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Affiliation(s)
- Gaser N Abdelrasoul
- Electrical, and Computer Engineering Department, University of Alberta, Edmonton, AB, Canada
| | - Afreen Anwar
- Electrical, and Computer Engineering Department, University of Alberta, Edmonton, AB, Canada; Department of Botany, University of Kashmir, Srinagar, 190006, J&K, India
| | - Scott MacKay
- Electrical, and Computer Engineering Department, University of Alberta, Edmonton, AB, Canada
| | - Marcus Tamura
- Electrical, and Computer Engineering Department, University of Alberta, Edmonton, AB, Canada
| | - Manzoor A Shah
- Department of Botany, University of Kashmir, Srinagar, 190006, J&K, India
| | - Damase P Khasa
- Centre for Forest Research (CEF), Institute for Integrative and Systems Biology (IBIS), and Canada Research Chair in Forest and Environmental Genomics, Université Laval, Québec, QC, G1V0A6, Canada
| | - Ruth R Montgomery
- Internal Medicine, Yale School of Medicine, New Haven, CT, 06520, USA
| | - Albert I Ko
- Department of Epidemiology of Microbial Diseases, School of Public Health, Yale University, New Haven, CT, 06510, USA
| | - Jie Chen
- Electrical, and Computer Engineering Department, University of Alberta, Edmonton, AB, Canada.
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Impact of Self-Assembled Monolayer Design and Electrochemical Factors on Impedance-Based Biosensing. SENSORS 2020; 20:s20082246. [PMID: 32316211 PMCID: PMC7218866 DOI: 10.3390/s20082246] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/11/2022]
Abstract
Real-time sensing of proteins, especially in wearable devices, remains a substantial challenge due to the need to convert a binding event into a measurable signal that is compatible with the chosen analytical instrumentation. Impedance spectroscopy enables real-time detection via either measuring electrostatic interactions or electron transfer reactions while simultaneously being amenable to miniaturization for integration into wearable form-factors. To create a more robust methodology for optimizing impedance-based sensors, additional fundamental studies exploring components influencing the design and implementation of these sensors are needed. This investigation addresses a sub-set of these issues by combining optical and electrochemical characterization to validate impedance-based sensor performance as a function of (1) biorecognition element density, (2) self-assembled monolayer chain length, (3) self-assembled monolayer charge density, (4) the electrochemical sensing mechanism and (5) the redox reporter selection. Using a pre-existing lysozyme aptamer and lysozyme analyte combination, we demonstrate a number of design criteria to advance the state-of-the-art in protein sensing. For this model system we demonstrated the following: First, denser self-assembled monolayers yielded substantially improved sensing results. Second, self-assembled monolayer composition, including both thickness and charge density, changed the observed peak position and peak current. Third, single frequency measurements, while less informative, can be optimized to replace multi-frequency measurements and in some cases (such as that with zwitterionic self-assembled monolayers) are preferred. Finally, various redox reporters traditionally not used in impedance sensing should be further explored. Collectively, these results can help limit bottlenecks associated with device development, enabling realization of next-generation impedance-based biosensing with customize sensor design for the specific application.
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Label-Free Biosensors for Laboratory-Based Diagnostics of Infections: Current Achievements and New Trends. BIOSENSORS-BASEL 2020; 10:bios10020011. [PMID: 32059538 PMCID: PMC7169461 DOI: 10.3390/bios10020011] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 01/30/2020] [Accepted: 02/08/2020] [Indexed: 01/16/2023]
Abstract
Infections pose a serious global public health problem and are a major cause of premature mortality worldwide. One of the most challenging objectives faced by modern medicine is timely and accurate laboratory-based diagnostics of infectious diseases. Being a key factor of timely initiation and success of treatment, it may potentially provide reduction in incidence of a disease, as well as prevent outbreak and spread of dangerous epidemics. The traditional methods of laboratory-based diagnostics of infectious diseases are quite time- and labor-consuming, require expensive equipment and qualified personnel, which restricts their use in case of limited resources. Over the past six decades, diagnostic technologies based on lateral flow immunoassay (LFIA) have been and remain true alternatives to modern laboratory analyzers and have been successfully used to quickly detect molecular ligands in biosubstrates to diagnose many infectious diseases and septic conditions. These devices are considered as simplified formats of modern biosensors. Recent advances in the development of label-free biosensor technologies have made them promising diagnostic tools that combine rapid pathogen indication, simplicity, user-friendliness, operational efficiency, accuracy, and cost effectiveness, with a trend towards creation of portable platforms. These qualities exceed the generally accepted standards of microbiological and immunological diagnostics and open up a broad range of applications of these analytical systems in clinical practice immediately at the site of medical care (point-of-care concept, POC). A great variety of modern nanoarchitectonics of biosensors are based on the use of a broad range of analytical and constructive strategies and identification of various regulatory and functional molecular markers associated with infectious bacterial pathogens. Resolution of the existing biosensing issues will provide rapid development of diagnostic biotechnologies.
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Shi F, Gan L, Wang Y, Wang P. Impedimetric biosensor fabricated with affinity peptides for sensitive detection of Escherichia coli O157:H7. Biotechnol Lett 2020; 42:825-832. [PMID: 31993846 DOI: 10.1007/s10529-020-02817-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/20/2020] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To effectively and conveniently detect pathogenic bacteria, this study aimed to develop label-free biosensors fabricated affinity peptides that can recognize targeted bacteria strains and enable precise quantitative detections. RESULTS A 12-mer peptide with high binding affinity toward Escherichia coli O157:H7 was discovered by biopanning of phage-displayed peptide library. The peptide modified with glycine residues (G3) and one cysteine (C) residue at C-terminal, could self-assemble on gold electrodes, enabling electrochemical impedance spectroscopy (EIS) analysis for quantitative detection of E. coli O157:H7. This method showed a low detection limit of 20 CFU/mL and a liner range from 2 × 102 to 2 × 106 CFU/mL. CONCLUSION It appears that, by designing and optimizing the structures of peptides, such a strategy can be greatly promising in developing quick, sensitive and quantitative biosensor of pathogens.
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Affiliation(s)
- Fan Shi
- State Key Laboratory of Bioreactor Engineering, Biomedical Nanotechnology Center, Shanghai Collaborative Innovation Center for Biomanufacturing, School of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Lingfeng Gan
- State Key Laboratory of Bioreactor Engineering, Biomedical Nanotechnology Center, Shanghai Collaborative Innovation Center for Biomanufacturing, School of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Yibing Wang
- State Key Laboratory of Bioreactor Engineering, Biomedical Nanotechnology Center, Shanghai Collaborative Innovation Center for Biomanufacturing, School of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Ping Wang
- State Key Laboratory of Bioreactor Engineering, Biomedical Nanotechnology Center, Shanghai Collaborative Innovation Center for Biomanufacturing, School of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
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Cimafonte M, Fulgione A, Gaglione R, Papaianni M, Capparelli R, Arciello A, Bolletti Censi S, Borriello G, Velotta R, Della Ventura B. Screen Printed Based Impedimetric Immunosensor for Rapid Detection of Escherichia coli in Drinking Water. SENSORS 2020; 20:s20010274. [PMID: 31947810 PMCID: PMC6982893 DOI: 10.3390/s20010274] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/27/2019] [Accepted: 12/30/2019] [Indexed: 12/19/2022]
Abstract
The development of a simple and low cost electrochemical impedance immunosensor based on screen printed gold electrode for rapid detection of Escherichia coli in water is reported. The immunosensor is fabricated by immobilizing anti-E. coli antibodies onto a gold surface in a covalent way by the photochemical immobilization technique, a simple procedure able to bind antibodies upright onto gold surfaces. Impedance spectra are recorded in 0.01 M phosphate buffer solution (PBS) containing 10 mM Fe(CN)63−/Fe(CN)64− as redox probe. The Nyquist plots can be modelled with a modified Randles circuit, identifying the charge transfer resistance Rct as the relevant parameter after the immobilization of antibodies, the blocking with BSA and the binding of E. coli. The introduction of a standard amplification procedure leads to a significant enhancement of the impedance increase, which allows one to measure E. coli in drinking water with a limit of detection of 3 × 101 CFU mL−1 while preserving the rapidity of the method that requires only 1 h to provide a “yes/no” response. Additionally, by applying the Langmuir adsorption model, we are able to describe the change of Rct in terms of the “effective” electrode, which is modified by the detection of the analyte whose microscopic conducting properties can be quantified.
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Affiliation(s)
- Martina Cimafonte
- Department of Physics “Ettore Pancini”, University of Naples “Federico II”, Via Cinthia, 26, 80126 Naples, Italy; (M.C.); (R.V.)
| | - Andrea Fulgione
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute, 2, 80055 Portici Naples, Italy; (A.F.); (G.B.)
- Department of Agriculture, University of Naples “Federico II”, Via Università, 133, 80055 Portici Naples, Italy; (M.P.); (R.C.)
| | - Rosa Gaglione
- Department of Chemical Sciences, University of Naples “Federico II”, Via Cinthia, 26, 80126 Naples, Italy; (R.G.); (A.A.)
| | - Marina Papaianni
- Department of Agriculture, University of Naples “Federico II”, Via Università, 133, 80055 Portici Naples, Italy; (M.P.); (R.C.)
| | - Rosanna Capparelli
- Department of Agriculture, University of Naples “Federico II”, Via Università, 133, 80055 Portici Naples, Italy; (M.P.); (R.C.)
| | - Angela Arciello
- Department of Chemical Sciences, University of Naples “Federico II”, Via Cinthia, 26, 80126 Naples, Italy; (R.G.); (A.A.)
| | | | - Giorgia Borriello
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute, 2, 80055 Portici Naples, Italy; (A.F.); (G.B.)
| | - Raffaele Velotta
- Department of Physics “Ettore Pancini”, University of Naples “Federico II”, Via Cinthia, 26, 80126 Naples, Italy; (M.C.); (R.V.)
| | - Bartolomeo Della Ventura
- Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133 Milano, Italy
- Correspondence:
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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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Hobbs RJ, Thomas CA, Halliwell J, Gwenin CD. Rapid Detection of Botulinum Neurotoxins-A Review. Toxins (Basel) 2019; 11:E418. [PMID: 31319550 PMCID: PMC6669533 DOI: 10.3390/toxins11070418] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/15/2019] [Accepted: 07/15/2019] [Indexed: 12/13/2022] Open
Abstract
A toxin is a poisonous substance produced within living cells or organisms. One of the most potent groups of toxins currently known are the Botulinum Neurotoxins (BoNTs). These are so deadly that as little as 62 ng could kill an average human; to put this into context that is approximately 200,000 × less than the weight of a grain of sand. The extreme toxicity of BoNTs leads to the need for methods of determining their concentration at very low levels of sensitivity. Currently the mouse bioassay is the most widely used detection method monitoring the activity of the toxin; however, this assay is not only lengthy, it also has both cost and ethical issues due to the use of live animals. This review focuses on detection methods both existing and emerging that remove the need for the use of animals and will look at three areas; speed of detection, sensitivity of detection and finally cost. The assays will have wide reaching interest, ranging from the pharmaceutical/clinical industry for production quality management or as a point of care sensor in suspected cases of botulism, the food industry as a quality control measure, to the military, detecting BoNT that has been potentially used as a bio warfare agent.
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Affiliation(s)
- Robert J Hobbs
- Applied Research in Chemistry and Health (ARCH) Research Group, School of Natural Sciences, Bangor University, Bangor, Gwynedd, Wales LL57 2UW, UK
| | - Carol A Thomas
- Applied Research in Chemistry and Health (ARCH) Research Group, School of Natural Sciences, Bangor University, Bangor, Gwynedd, Wales LL57 2UW, UK
| | - Jennifer Halliwell
- Applied Research in Chemistry and Health (ARCH) Research Group, School of Natural Sciences, Bangor University, Bangor, Gwynedd, Wales LL57 2UW, UK
| | - Christopher D Gwenin
- Applied Research in Chemistry and Health (ARCH) Research Group, School of Natural Sciences, Bangor University, Bangor, Gwynedd, Wales LL57 2UW, UK.
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Singh S, Moudgil A, Mishra N, Das S, Mishra P. Vancomycin functionalized WO3 thin film-based impedance sensor for efficient capture and highly selective detection of Gram-positive bacteria. Biosens Bioelectron 2019; 136:23-30. [DOI: 10.1016/j.bios.2019.04.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/05/2019] [Accepted: 04/15/2019] [Indexed: 01/08/2023]
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Gupta A, Bhardwaj SK, Sharma AL, Kim KH, Deep A. Development of an advanced electrochemical biosensing platform for E. coli using hybrid metal-organic framework/polyaniline composite. ENVIRONMENTAL RESEARCH 2019; 171:395-402. [PMID: 30716516 DOI: 10.1016/j.envres.2019.01.049] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/07/2019] [Accepted: 01/29/2019] [Indexed: 05/26/2023]
Abstract
Because of numerous merits (e.g., the possibility of their synthesis in 1-D, 2-D, and 3-D forms, large surface-to-volume ratio, and flexible framework functionality), metal-organic frameworks (MOFs) are envisaged as excellent media for the development of biosensors for diverse analytes present in environmental media. The present research work, for the first time, reports the development of a Cu-MOF based electrochemical biosensor for highly sensitive detection of E. coli bacteria. In order to realize an MOF-based electrochemically active platform, Cu3(BTC)2 (BTC = 1,3,5-benzenetricarboxylic acid) was mixed with polyaniline (PANI). The spectroscopic/morphological characterizations of the resulting composite were established with the aid of FT-IR, UV-visible spectroscopy, X-ray diffraction, electron microscopy, and surface area analysis. The thin films of Cu3(BTC)2-PANI, on an indium-tin oxide (ITO) substrate, were bio-interfaced with anti-E. coli antibodies for use as a novel biosensing electrode. Based on the electrochemical impedance spectroscopy (EIS) technique of signal measurement, the above sensor exhibited high sensitivity to detect very low concentrations of E. coli (2cfu/mL) in a short response time (~2 min) and was also selective in the presence of other non-specific bacteria. As a novel highlight of the research, this new MOF/PANI based detection platform for E. coli has shown improved performance than many of the previously reported electrochemical biosensors.
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Affiliation(s)
- Arushi Gupta
- CSIR-Central Scientific Instruments Organisation (CSIR-CSIO), Sector 30C, Chandigarh 160030, India; Academy of Scientific and Innovative Research, CSIO-AcSIR, Sector 30C, Chandigarh 160030, India
| | - Sanjeev K Bhardwaj
- CSIR-Central Scientific Instruments Organisation (CSIR-CSIO), Sector 30C, Chandigarh 160030, India; Academy of Scientific and Innovative Research, CSIO-AcSIR, Sector 30C, Chandigarh 160030, India
| | - Amit L Sharma
- CSIR-Central Scientific Instruments Organisation (CSIR-CSIO), Sector 30C, Chandigarh 160030, India; Academy of Scientific and Innovative Research, CSIO-AcSIR, Sector 30C, Chandigarh 160030, India
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea.
| | - Akash Deep
- CSIR-Central Scientific Instruments Organisation (CSIR-CSIO), Sector 30C, Chandigarh 160030, India; Academy of Scientific and Innovative Research, CSIO-AcSIR, Sector 30C, Chandigarh 160030, India.
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An impedimetric biosensor for E. coli O157:H7 based on the use of self-assembled gold nanoparticles and protein G. Mikrochim Acta 2019; 186:169. [DOI: 10.1007/s00604-019-3282-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 01/23/2019] [Indexed: 10/27/2022]
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Alba M, Robin M, Menzies D, Gengenbach TR, Prieto-Simon B, Voelcker NH. Differential functionalisation of the internal and external surfaces of carbon-stabilised nanoporous silicon. Chem Commun (Camb) 2019; 55:8001-8004. [DOI: 10.1039/c9cc03755a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A versatile strategy to differentiate the surface chemistry of the internal and external pore walls of highly-stable nanoporous silicon.
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Affiliation(s)
- Maria Alba
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing
| | - Morgane Robin
- Future Industries Institute
- University of South Australia
- Mawson Lakes
- Australia
| | - Donna Menzies
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing
| | - Thomas R. Gengenbach
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing
- Clayton
- Australia
| | - Beatriz Prieto-Simon
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing
| | - Nicolas H. Voelcker
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing
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46
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Binding strategies for capturing and growing Escherichia coli on surfaces of biosensing devices. Talanta 2019; 192:270-277. [DOI: 10.1016/j.talanta.2018.09.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/09/2018] [Accepted: 09/13/2018] [Indexed: 12/21/2022]
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Krishnan SK, Singh E, Singh P, Meyyappan M, Nalwa HS. A review on graphene-based nanocomposites for electrochemical and fluorescent biosensors. RSC Adv 2019; 9:8778-8881. [PMID: 35517682 PMCID: PMC9062009 DOI: 10.1039/c8ra09577a] [Citation(s) in RCA: 264] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 02/15/2019] [Indexed: 12/16/2022] Open
Abstract
Biosensors with high sensitivity, selectivity and a low limit of detection, reaching nano/picomolar concentrations of biomolecules, are important to the medical sciences and healthcare industry for evaluating physiological and metabolic parameters.
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Affiliation(s)
- Siva Kumar Krishnan
- CONACYT-Instituto de Física
- Benemérita Universidad Autónoma de Puebla
- Puebla 72570
- Mexico
| | - Eric Singh
- Department of Computer Science
- Stanford University
- Stanford
- USA
| | - Pragya Singh
- Department of Electrical Engineering and Computer Science
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| | - Meyya Meyyappan
- Center for Nanotechnology
- NASA Ames Research Center
- Moffett Field
- Mountain View
- USA
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Versatile Protein-A Coated Photoelectric Immunosensors with a Purple-Membrane Monolayer Transducer Fabricated by Affinity-Immobilization on a Graphene-Oxide Complexed Linker and by Shear Flow. SENSORS 2018; 18:s18124493. [PMID: 30567418 PMCID: PMC6308460 DOI: 10.3390/s18124493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 12/06/2018] [Accepted: 12/17/2018] [Indexed: 01/22/2023]
Abstract
Bacteriorhodopsin-embedded purple membranes (PM) have been demonstrated to be a sensitive photoelectric transducer for microbial detection. To efficiently prepare versatile BR-based immunosensors with protein A as antibody captures, a large, high-coverage, and uniformly oriented PM monolayer was fabricated on an electrode as an effective foundation for protein A conjugation through bis-NHS esters, by first affinity-coating biotinylated PM on an aminated surface using a complex of oxidized avidin and graphene oxide as the planar linker and then washing the coating with a shear flow. Three different polyclonal antibodies, each against Escherichia coli, Lactobacillus acidophilus, and Streptococcus mutans, respectively, were individually, effectively and readily adsorbed on the protein A coated electrodes, leading to selective and sensitive quantitative detection of their respective target cells in a single step without any labeling. A single-cell detection limit was achieved for the former two cells. AFM, photocurrent, and Raman analyses all displayed each fabricated layer as well as the captured bacteria, with AFM particularly revealing the formation of a massive continuous PM monolayer on aminated mica. The facile cell-membrane monolayer fabrication and membrane surface conjugation techniques disclosed in this study may be widely applied to the preparation of different biomembrane-based biosensors.
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Zhang Y, Xu CQ, Guo T, Hong L. An automated bacterial concentration and recovery system for pre-enrichment required in rapid Escherichia coli detection. Sci Rep 2018; 8:17808. [PMID: 30546076 PMCID: PMC6292886 DOI: 10.1038/s41598-018-35970-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 11/09/2018] [Indexed: 12/18/2022] Open
Abstract
One of the biggest challenges in rapid low concentration bacterial detection is the pre-concentration or pre-enrichment, which aims to increase bacteria concentration and reduce sample volume for easy bacterial detection. In practical bacterial detection, large-volume water samples with a pathogenic bacterial concentration of less than 1 CFU/mL have to be tested rapidly. The reported biosensors either have insufficient detection limit or have limited capability of handling a sufficiently large water sample. Therefore, a high-performance automated pre-enrichment process is strongly demanded in rapid practical bacterial detection. In this paper, a practical high performance automated bacterial concentration and recovery system (ABCRS) based on the combination of a ceramic membrane and tangential flow filtration technique was presented with short processing time (less than one hour), low pre-enrichment limit (≤0.005 CFU/mL), high concentration ratio (≥ 500), high recovery efficiency (~ 90%), and small final retentate volume (≤ 5 mL).
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Affiliation(s)
- Yushan Zhang
- Faculty of Engineering, McMaster University, Hamilton, Canada
| | - Chang-Qing Xu
- Faculty of Engineering, McMaster University, Hamilton, Canada.
| | - Tianyi Guo
- Forsee Instruments Ltd., Hamilton, Canada
| | - Lingcheng Hong
- Jiangsu Delin Environmental Protection Technology Co., Ltd., Jiangsu, China
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Ghosh Dastider S, Abdullah A, Jasim I, Yuksek NS, Dweik M, Almasri M. Low concentration E. coli O157:H7 bacteria sensing using microfluidic MEMS biosensor. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:125009. [PMID: 30599553 DOI: 10.1063/1.5043424] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
This paper reports the design, fabrication, and testing of a microfluidic MEMS biosensor for rapid sensing of low concentration Escherichia coli O157:H7. It consists of a specially designed focusing and sensing region, which enables the biosensor to detect low concentration of bacterial cells. The focusing region consists of a ramped vertical electrode pair made of electroplated gold along with tilted thin film finger pairs (45°) embedded inside a microchannel. The focusing region generates positive dielectrophoresis force, which moves the cells towards the edges of the tilted thin film electrode fingers, located at the center of the microchannel. The fluidic drag force then carries the focused cells to the sensing region, where three interdigitated electrode arrays (IDEAs) with 30, 20, and 10 pairs, respectively, are embedded inside the microchannel. This technique resulted in highly concentrated samples in the sensing region. The sensing IDEAs are functionalized with the anti-E. coli antibody for specific sensing of E. coli 0157:H7. As E. coli binds to the antibody, it results in an impedance change, which is measured across a wide frequency range of 100 Hz-10 MHz. The biosensor was fabricated on a glass substrate using the SU8 epoxy resist to form the microchannel, gold electroplating to form the vertical focusing electrode pair, a thin gold film to form the sensing electrode, the finger electrodes, traces and bonding pads, and polydimethylsiloxane to seal the device. The microfluidic impedance biosensor was tested with various low concentration bacterial samples and was able to detect bacterial concentration, as low as 39 CFU/ml with a total sensing time of 2 h.
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Affiliation(s)
- Shibajyoti Ghosh Dastider
- Department of Electrical and Computer Engineering, University of Missouri, Columbia, Missouri 65211, USA
| | - Amjed Abdullah
- Department of Electrical and Computer Engineering, University of Missouri, Columbia, Missouri 65211, USA
| | - Ibrahem Jasim
- Department of Electrical and Computer Engineering, University of Missouri, Columbia, Missouri 65211, USA
| | - Nuh S Yuksek
- Department of Electrical and Computer Engineering, University of Missouri, Columbia, Missouri 65211, USA
| | - Majed Dweik
- Department of Co-operative Research, Lincoln University, Jefferson City, Missouri 65101, USA
| | - Mahmoud Almasri
- Department of Electrical and Computer Engineering, University of Missouri, Columbia, Missouri 65211, USA
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