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Aydın EB, Aydın M, Sezgintürk MK. Label-Free Electrochemical Immunosensor Based on Conjugated Polymer Film Coated Disposable Electrode for Ultrasensitive Determination of Resistin Potential Obesity Biomarker. ACS APPLIED BIO MATERIALS 2024; 7:1820-1830. [PMID: 38395746 PMCID: PMC10952011 DOI: 10.1021/acsabm.3c01231] [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: 12/13/2023] [Revised: 02/09/2024] [Accepted: 02/11/2024] [Indexed: 02/25/2024]
Abstract
A new label-free immunosensor was designed for sensitive detection of resistin obesity biomarker in human biological fluids. To construct a sensing interface, the monomer of double epoxy groups-substituted thiophene (TdiEpx) was synthesized for the fabrication of the biosensing system. A disposable indium tin oxide sheet was first modified by electrochemical polymerization of the TdiEpx monomer, and this robust and novel surface was characterized using different spectroscopic and electrochemical analyses. The double epoxy ends were linked to the amino ends of anti-resistin, and they served as binding points for the covalent binding of biomolecules. The double epoxy ends present in each TdiEpx monomer ensured an extensive surface area, which improved the quantity of attached anti-resistin. The determination of resistin antigen was based on the specific coupling of resistin with anti-resistin, and this interaction hindered the electron transfer reaction. The immunosensor introduced a wide linear range of 0.0125-15 pg/mL, a low detection limit of 4.17 fg/mL, and an excellent sensitivity of 1.38 kohm pg mL-1 cm2. In this study, a sandwich enzyme-linked immunosorbent assay spectrophotometric method was utilized as a reference technique for the quantitative analysis of resistin in human serum and saliva samples. Both measurements in clinical samples displayed correlations and high-correlation coefficients. In addition, this immunosensor had good storage stability, acceptable repeatability and reproducibility, high specificity, and good accuracy. The proposed immunosensor provided a simple and versatile impedimetric immunosensing platform and a promisingly sensitive way for clinical applications.
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Affiliation(s)
- Elif Burcu Aydın
- Scientific
and Technological Research Center, Tekirdaǧ
Namık Kemal University, Tekirdaǧ, Turkey 59030
| | - Muhammet Aydın
- Scientific
and Technological Research Center, Tekirdaǧ
Namık Kemal University, Tekirdaǧ, Turkey 59030
| | - Mustafa Kemal Sezgintürk
- Bioengineering
Department, Faculty of Engineering, Çanakkale
Onsekiz Mart University, Çanakkale, Turkey 17100
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2
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Kalita N, Gogoi S, Minteer SD, Goswami P. Advances in Bioelectrode Design for Developing Electrochemical Biosensors. ACS MEASUREMENT SCIENCE AU 2023; 3:404-433. [PMID: 38145027 PMCID: PMC10740130 DOI: 10.1021/acsmeasuresciau.3c00034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 12/26/2023]
Abstract
The critical performance factors such as selectivity, sensitivity, operational and storage stability, and response time of electrochemical biosensors are governed mainly by the function of their key component, the bioelectrode. Suitable design and fabrication strategies of the bioelectrode interface are essential for realizing the requisite performance of the biosensors for their practical utility. A multifaceted attempt to achieve this goal is visible from the vast literature exploring effective strategies for preparing, immobilizing, and stabilizing biorecognition elements on the electrode surface and efficient transduction of biochemical signals into electrical ones (i.e., current, voltage, and impedance) through the bioelectrode interface with the aid of advanced materials and techniques. The commercial success of biosensors in modern society is also increasingly influenced by their size (and hence portability), multiplexing capability, and coupling in the interface of the wireless communication technology, which facilitates quick data transfer and linked decision-making processes in real-time in different areas such as healthcare, agriculture, food, and environmental applications. Therefore, fabrication of the bioelectrode involves careful selection and control of several parameters, including biorecognition elements, electrode materials, shape and size of the electrode, detection principles, and various fabrication strategies, including microscale and printing technologies. This review discusses recent trends in bioelectrode designs and fabrications for developing electrochemical biosensors. The discussions have been delineated into the types of biorecognition elements and their immobilization strategies, signal transduction approaches, commonly used advanced materials for electrode fabrication and techniques for fabricating the bioelectrodes, and device integration with modern electronic communication technology for developing electrochemical biosensors of commercial interest.
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Affiliation(s)
- Nabajyoti Kalita
- Department
of Biosciences and Bioengineering, Indian
Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Sudarshan Gogoi
- Department
of Chemistry, Sadiya College, Chapakhowa, Assam 786157, India
| | - Shelley D. Minteer
- Department
of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah 84112, United States
- Kummer
Institute Center for Resource Sustainability, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
| | - Pranab Goswami
- Department
of Biosciences and Bioengineering, Indian
Institute of Technology Guwahati, Guwahati, Assam 781039, India
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3
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Wang X, Dong S, Wei H. Recent advances on nanozyme‐based electrochemical biosensors. ELECTROANAL 2022. [DOI: 10.1002/elan.202100684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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4
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Bensana A, Achi F. Analytical performance of functional nanostructured biointerfaces for sensing phenolic compounds. Colloids Surf B Biointerfaces 2020; 196:111344. [PMID: 32877829 DOI: 10.1016/j.colsurfb.2020.111344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 08/09/2020] [Accepted: 08/19/2020] [Indexed: 12/14/2022]
Abstract
Electrochemical biointerfaces are constructed with a wide range of nanomaterials and conducting polymers that strongly affect the analytical performance of biosensors. The analysis of progress toward electrochemical sensing platforms offers opportunities to provide devices for commercial use. The investigation of different methods for the synthesis of phenol biointerfaces leads to design challenges in the field of monitoring phenolic compounds. This paper review the innovative strategies and feature techniques in the construction of phenolic compound biosensors. The focus was made on the preparation methods of nanostructures and nanomaterials design for catalytic improvements of sensing interfaces. The paper also provides a comprehensive overview in the field of enzyme immobilization approaches at solid supports and technical formation of polymer nanocomposites, as well as applications of hybrid organic-inorganic nanocomposites in phenolic biosensors. This review also highlights the recent progress in the electrochemical detection of phenolic compounds and summarizes analytical performance parameters including sensitivity, storage stability, limit of detection, linear range, and Michaelis-Menten kinetic analysis. It also emphasizes advances from the past decade including technical challenges for the construction of suitable biointerfaces for monitoring phenolic compounds.
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Affiliation(s)
- Amira Bensana
- Departement of Process Engineering, Laboratoire de Génie des Procédés Chimiques (LGPC), Faculty of Technology, Ferhat Abbas University Sétif-1-, Setif, 19000, Algeria
| | - Fethi Achi
- Laboratory of Valorisation and Promotion of Saharian Ressources (VPSR), Kasdi Merbah University, Ouargla, 30000, Algeria.
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5
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Chen C, Guo Y, Chen P, Peng H. Recent advances of tissue-interfaced chemical biosensors. J Mater Chem B 2020; 8:3371-3381. [DOI: 10.1039/c9tb02476j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This review discusses recent advances of tissue interfaced chemical biosensors, highlights current challenges and gives an outlook on future possibilities.
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Affiliation(s)
- Chuanrui Chen
- Laboratory of Advanced Materials
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai 200438
- China
| | - Yue Guo
- Laboratory of Advanced Materials
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai 200438
- China
| | - Peining Chen
- Laboratory of Advanced Materials
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai 200438
- China
| | - Huisheng Peng
- Laboratory of Advanced Materials
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai 200438
- China
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6
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Tamleh Z, Rafipour R, Kashanian S. Protein-Based Nanobiosensor for Electrochemical Determination of Hydrogen Peroxide. RUSS J ELECTROCHEM+ 2019. [DOI: 10.1134/s1023193519100094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Assari P, Rafati AA, Feizollahi A, Asadpour Joghani R. An electrochemical immunosensor for the prostate specific antigen based on the use of reduced graphene oxide decorated with gold nanoparticles. Mikrochim Acta 2019; 186:484. [PMID: 31256262 DOI: 10.1007/s00604-019-3565-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/28/2019] [Indexed: 01/07/2023]
Abstract
The authors describe an immunosensor for the prostate specific antigen (PSA). It was obtained by modifying a glassy carbon electrode (GCE) first modified with gold nanoparticles and then with reduced graphene oxide that was decorated with gold nanoparticles. The AuNPs on reduced graphene oxide provide a suitable surface for attachment of antibodies. On binding of the antigen, the square wave voltammetric signal (measured by using hexacyanoferrate as a probe) reduced. This method has two logarithmically linear analytical ranges that extend from 25 to 55 fg.mL-1 and from 1 to 36 ng.mL-1, respectively. The lowest detection limit is 2 pg.mL-1. Electrochemical impedance spectroscopy was also carried out for PSA determination. EIS works in the 0.0018 to 41 ng.mL-1 concentration range and has an LOD of 60 pg.mL-1. This method was applied to the determination of PSA in (spiked) human serum samples. In order to survey the selectivity of immunosensor, determination of PSA was performed in human serum samples, and finally sensitivity and reproducibility were examined. Graphical abstract Facile label free immunosensor based on reduced graphene oxide decorated with gold nanoparticles for early diagnosis prostate cancer via ultrasensitive detection of PSA biomarker: application in human serum.
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Affiliation(s)
- Parnaz Assari
- Department of Physical Chemistry, Faculty of Chemistry, Bu-Ali Sina University, P.O.Box 65174, Hamedan, Iran
| | - Amir Abbas Rafati
- Department of Physical Chemistry, Faculty of Chemistry, Bu-Ali Sina University, P.O.Box 65174, Hamedan, Iran.
| | - Azizallah Feizollahi
- Department of Physical Chemistry, Faculty of Chemistry, Bu-Ali Sina University, P.O.Box 65174, Hamedan, Iran
| | - Roghayeh Asadpour Joghani
- Department of Physical Chemistry, Faculty of Chemistry, Bu-Ali Sina University, P.O.Box 65174, Hamedan, Iran
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8
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Khoshbin Z, Verdian A, Housaindokht MR, Izadyar M, Rouhbakhsh Z. Aptasensors as the future of antibiotics test kits-a case study of the aptamer application in the chloramphenicol detection. Biosens Bioelectron 2018; 122:263-283. [PMID: 30268964 DOI: 10.1016/j.bios.2018.09.060] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/08/2018] [Accepted: 09/16/2018] [Indexed: 12/31/2022]
Abstract
Antibiotics are a type of antimicrobial drug with the ubiquitous presence in foodstuff that effectively applied to treat the diseases and promote the animal growth worldwide. Chloramphenicol as one of the antibiotics with the broad action spectrum against Gram-positive and Gram-negative bacteria is widely applied for the effective treatment of infectious diseases in humans and animals. Unfortunately, the serious side effects of chloramphenicol, such as aplastic anemia, kidney damage, nausea, and diarrhea restrict its application in foodstuff and biomedical fields. Development of the sufficiently sensitive methods to detect chloramphenicol residues in food and clinical diagnosis seems to be an essential demand. Biosensors have been introduced as the promising tools to overcome the requirement. As one of the newest types of the biosensors, aptamer-based biosensors (aptasensors) are the efficient sensing platforms for the chloramphenicol monitoring. In the present review, we summarize the recent achievements of the accessible aptasensors for qualitative detection and quantitative determination of chloramphenicol as a candidate of the antibiotics. The present chloramphenicol aptasensors can be classified in two main optical and electrochemical categories. Also, the other formats of the aptasensing assays like the high performance liquid chromatography (HPLC) and microchip electrophoresis (MCE) have been reviewed. The enormous interest in utilizing the diverse nanomaterials is also highlighted in the fabrication of the chloramphenicol aptasensors. Finally, some results are presented based on the advantages and disadvantages of the studied aptasensors to achieve a promising perspective for designing the novel antibiotics test kits.
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Affiliation(s)
- Zahra Khoshbin
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Asma Verdian
- Department of food safety and quality control, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran.
| | | | - Mohammad Izadyar
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Zeinab Rouhbakhsh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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9
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Monteiro T, Almeida MG. Electrochemical Enzyme Biosensors Revisited: Old Solutions for New Problems. Crit Rev Anal Chem 2018; 49:44-66. [PMID: 29757683 DOI: 10.1080/10408347.2018.1461552] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Worldwide legislation is driving the development of novel and highly efficient analytical tools for assessing the composition of every material that interacts with Consumers or Nature. The biosensor technology is one of the most active R&D domains of Analytical Sciences focused on the challenge of taking analytical chemistry to the field. Electrochemical biosensors based on redox enzymes, in particular, are highly appealing due to their usual quick response, high selectivity and sensitivity, low cost and portable dimensions. This review paper aims to provide an overview of the most important advances made in the field since the proposal of the first biosensor, the well-known hand-held glucose meter. The first section addresses the current needs and challenges for novel analytical tools, followed by a brief description of the different components and configurations of biosensing devices, and the fundamentals of enzyme kinetics and amperometry. The following sections emphasize on enzyme-based amperometric biosensors and the different stages of their development.
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Affiliation(s)
- Tiago Monteiro
- a UCIBIO-REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa , Caparica , Portugal
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10
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Karamitros CS, Labrou NE. Preserving enzymatic activity and enhancing biochemical stability of glutathione transferase by soluble additives under free and tethered conditions. Biotechnol Appl Biochem 2017; 64:754-764. [DOI: 10.1002/bab.1535] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 09/16/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Christos S. Karamitros
- Laboratory of Enzyme Technology, Department of Biotechnology, School of Food, Biotechnology and Development; Agricultural University of Athens; Athens Greece
| | - Nikolaos E. Labrou
- Laboratory of Enzyme Technology, Department of Biotechnology, School of Food, Biotechnology and Development; Agricultural University of Athens; Athens Greece
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11
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Kaur G, Tomar M, Gupta V. Nanostructured NiO-based reagentless biosensor for total cholesterol and low density lipoprotein detection. Anal Bioanal Chem 2017; 409:1995-2005. [DOI: 10.1007/s00216-016-0147-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/29/2016] [Accepted: 12/12/2016] [Indexed: 10/20/2022]
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12
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Riegel AL, Borzenkova N, Haas V, Scharfer P, Schabel W. Activity determination of FAD-dependent glucose dehydrogenase immobilized in PEDOT: PSS-PVA composite films for biosensor applications. Eng Life Sci 2016. [DOI: 10.1002/elsc.201600128] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Anna-Lena Riegel
- Institute of Thermal Process Engineering; Karlsruhe Institute of Technology; Karlsruhe Germany
| | - Natalia Borzenkova
- Institute of Thermal Process Engineering; Karlsruhe Institute of Technology; Karlsruhe Germany
| | - Verena Haas
- Institute of Thermal Process Engineering; Karlsruhe Institute of Technology; Karlsruhe Germany
| | - Philip Scharfer
- Institute of Thermal Process Engineering; Karlsruhe Institute of Technology; Karlsruhe Germany
| | - Wilhelm Schabel
- Institute of Thermal Process Engineering; Karlsruhe Institute of Technology; Karlsruhe Germany
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13
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Mazloum-Ardakani M, Hosseinzadeh L, Khoshroo A. Label-free electrochemical immunosensor for detection of tumor necrosis factor α based on fullerene-functionalized carbon nanotubes/ionic liquid. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.09.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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14
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Kaur G, Saha S, Tomar M, Gupta V. Influence of immobilization strategies on biosensing response characteristics: A comparative study. Enzyme Microb Technol 2015; 82:144-150. [PMID: 26672461 DOI: 10.1016/j.enzmictec.2015.09.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 09/24/2015] [Accepted: 09/25/2015] [Indexed: 10/23/2022]
Abstract
The immobilization technique plays an important role in fabrication of a biosensor. NiO based cholesterol biosensor has been used to study the effect of various immobilization techniques on the biosensing response characteristics. The biosensors were fabricated by immobilizing cholesterol oxidase on NiO thin films by three different immobilization techniques viz. physisorption, cross-linking and covalent binding. The study reveals a strong dependence of biosensing response on corresponding immobilization technique. The biosensor based on immobilization by covalent bonding shows superior response characteristics as compared to others owing to its zero length. The results highlight the significance of immobilization technique for biosensor fabrication.
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Affiliation(s)
- Gurpreet Kaur
- Department of Physics & Astrophysics, University of Delhi, Delhi-7, India
| | - Shibu Saha
- Department of Physics, Dyal Singh College, University of Delhi, Lodi Road, Delhi-3, India
| | - Monika Tomar
- Department of Physics, Miranda House, University of Delhi, Delhi-7, India
| | - Vinay Gupta
- Department of Physics & Astrophysics, University of Delhi, Delhi-7, India.
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15
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Dey P, Adamovski M, Friebe S, Badalyan A, Mutihac RC, Paulus F, Leimkühler S, Wollenberger U, Haag R. Dendritic polyglycerol-poly(ethylene glycol)-based polymer networks for biosensing application. ACS APPLIED MATERIALS & INTERFACES 2014; 6:8937-8941. [PMID: 24882361 DOI: 10.1021/am502018x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This work describes the formation of a new dendritic polyglycerol-poly(ethylene glycol)-based 3D polymer network as a matrix for immobilization of the redox enzyme periplasmatic aldehyde oxidoreductase to create an electrochemical biosensor. The novel network is built directly on the gold surface, where it simultaneously stabilizes the enzyme for up to 4 days. The prepared biosensors can be used for amperometric detection of benzaldehyde in the range of 0.8-400 μM.
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Affiliation(s)
- Pradip Dey
- Institut für Chemie and Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
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16
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Yotova L, Yaneva S, Marinkova D, Serfaty S. Co-Immobilization of Peroxidase and Tyrosinase onto Hybrid Membranes Obtained by the Sol-Gel Method for the Construction of an Optical Biosensor. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.5504/bbeq.2013.0005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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17
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Guascito MR, Chirizzi D, Malitesta C, Giotta L, Mastrogiacomo D, Valli L, Stabili L. Development and characterization of a novel bioactive polymer with antibacterial and lysozyme-like activity. Biopolymers 2014; 101:461-70. [DOI: 10.1002/bip.22404] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 07/31/2013] [Accepted: 08/27/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Maria Rachele Guascito
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
| | - Daniela Chirizzi
- Dipartimento di Beni Culturali; Università del Salento; Via Birago 73100 Lecce Italy
| | - Cosimino Malitesta
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
| | - Livia Giotta
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
| | - Disma Mastrogiacomo
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
| | - Ludovico Valli
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
| | - Loredana Stabili
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
- Dipartimento di Beni Culturali; Università del Salento; Via Birago 73100 Lecce Italy
- Istituto per l'Ambiente Marino Costiero CNR U.O.S. Taranto; Via Roma 3 74100 Taranto Italy
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18
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Khodadadei F, Ghourchian H, Soltanieh M, Hosseinalipour M, Mortazavi Y. Rapid and clean amine functionalization of carbon nanotubes in a dielectric barrier discharge reactor for biosensor development. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.10.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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19
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An electrochemical magneto immunosensor (EMIS) for the determination of paraquat residues in potato samples. Anal Bioanal Chem 2013; 405:7841-9. [PMID: 23887278 DOI: 10.1007/s00216-013-7209-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 06/17/2013] [Accepted: 07/02/2013] [Indexed: 01/04/2023]
Abstract
An electrochemical magneto immunosensor for the detection of low concentrations of paraquat (PQ) in food samples has been developed and its performance evaluated in a complex sample such as potato extracts. The immunosensor presented uses immunoreagents specifically developed for the recognition of paraquat, a magnetic graphite-epoxy composite (m-GEC) electrode and biofunctionalized magnetic micro-particles (PQ1-BSAMP) that allow reduction of the potential interferences caused by the matrix components. The amperometric signal is provided by an enzymatic probe prepared by covalently linking an enzyme to the specific antibodies (Ab198-cc-HRP). The use of hydroquinone, as mediator, allows recording of the signal at a low potential, which also contributes to reducing the background noise potentially caused by the sample matrix. The immunocomplexes formed on top of the modified MP are easily captured by the m-GEC, which acts simultaneously as transducer. PQ can be detected at concentrations as low as 0.18 ± 0.09 μg L(-1). Combined with an efficient extraction procedure, PQ residues can be directly detected and accurately quantified in potato extracts without additional clean-up or purification steps, with a limit of detection (90% of the maximum signal) of 2.18 ± 2.08 μg kg(-1), far below the maximum residue level (20 μg kg(-1)) established by the EC. The immunosensor presented here is suitable for on-site analysis. Combined with the use of magnetic racks, multiple samples can be run simultaneously in a reasonable time.
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20
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Lad U, Kale GM, Bryaskova R. Glucose Oxidase Encapsulated Polyvinyl Alcohol–Silica Hybrid Films for an Electrochemical Glucose Sensing Electrode. Anal Chem 2013; 85:6349-55. [DOI: 10.1021/ac400719h] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Umesh Lad
- Institute for Materials Research,
SPEME, University of Leeds, Leeds LS2 9JT,
U.K
| | - Girish M. Kale
- Institute for Materials Research,
SPEME, University of Leeds, Leeds LS2 9JT,
U.K
| | - Rayna Bryaskova
- University of Chemical Technology and Metallurgy, Department of Polymer Engineering,
8 Kl. Ohridski, 1756 Sofia, Bulgaria
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21
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Walcarius A, Minteer SD, Wang J, Lin Y, Merkoçi A. Nanomaterials for bio-functionalized electrodes: recent trends. J Mater Chem B 2013; 1:4878-4908. [DOI: 10.1039/c3tb20881h] [Citation(s) in RCA: 261] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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22
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Singh K, Chauhan R, Solanki PR, Basu T. Development of Impedimetric Biosensor for Total Cholesterol Estimation Based on Polypyrrole and Platinum Nanoparticle Multi Layer Nanocomposite. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ijoc.2013.34038] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Jackowska K, Krysinski P. New trends in the electrochemical sensing of dopamine. Anal Bioanal Chem 2012; 405:3753-71. [PMID: 23241816 PMCID: PMC3608872 DOI: 10.1007/s00216-012-6578-2] [Citation(s) in RCA: 224] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 11/12/2012] [Accepted: 11/13/2012] [Indexed: 12/11/2022]
Abstract
Since the early 70s electrochemistry has been used as a powerful analytical technique for monitoring electroactive species in living organisms. In particular, after extremely rapid evolution of new micro and nanotechnology it has been established as an invaluable technique ranging from experiments in vivo to measurement of exocytosis during communication between cells under in vitro conditions. This review highlights recent advances in the development of electrochemical sensors for selective sensing of one of the most important neurotransmitters--dopamine. Dopamine is an electroactive catecholamine neurotransmitter, abundant in the mammalian central nervous system, affecting both cognitive and behavioral functions of living organisms. We have not attempted to cover a large time-span nor to be comprehensive in presenting the vast literature devoted to electrochemical dopamine sensing. Instead, we have focused on the last five years, describing recent progress as well as showing some problems and directions for future development.
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Fritzen-Garcia MB, Zoldan VC, Oliveira IRWZ, Soldi V, Pasa AA, Creczynski-Pasa TB. Peroxidase immobilized on phospholipid bilayers supported on Au (111) by DTT self-assembled monolayers: application to dopamine determination. Biotechnol Bioeng 2012; 110:374-82. [PMID: 22949216 DOI: 10.1002/bit.24721] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 08/20/2012] [Accepted: 08/24/2012] [Indexed: 11/08/2022]
Abstract
In this work, horseradish peroxidase (HRP) was immobilized on dimyristoylphosphatidylcholine (DMPC) bilayers supported on Au (111) by dithiotreitol (DTT) self-assembled monolayers and used as a nanostructured electrochemical biosensor to dopamine determination. The morphology of the phospholipid bilayers and the immobilization of HRP to these layers were characterized by atomic force microscopy (AFM). Square-wave voltammetry (SWV) experiments were done to investigate the performance of the HRP-modified electrode. The AFM images indicate that the enzyme is adsorbed at the external layer of the lipid bilayer and, although the electrical charges on the surface were not measured, the enzyme and phospholipids surface interaction occurs probably by electrostatic forces due to the pH used in the experiments. Interestingly, the present system can be used as one-shot sensor for the rapid detection of dopamine. The analytical performance of this system was linear for dopamine concentrations from 3.3 × 10⁻⁵ to 1.3 × 10⁻³ mol L⁻¹ (r = 0.9997) with a detection limit of 2.0 × 10⁻⁶ mol L⁻¹. Our results indicate that the use of HRP-DMPC bilayer system may be useful not only in developing new nanostructured materials for technological purposes, but could be very useful in fundamental studies to investigate the interactions between different micro-and macromolecules, even with soluble proteins, and lipid membranes.
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Affiliation(s)
- Maurícia B Fritzen-Garcia
- GEIMM, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.
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Carrara S, Ghoreishizadeh S, Olivo J, Taurino I, Baj-Rossi C, Cavallini A, de Beeck MO, Dehollain C, Burleson W, Moussy FG, Guiseppi-Elie A, De Micheli G. Fully integrated biochip platforms for advanced healthcare. SENSORS (BASEL, SWITZERLAND) 2012; 12:11013-60. [PMID: 23112644 PMCID: PMC3472872 DOI: 10.3390/s120811013] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 07/10/2012] [Accepted: 07/17/2012] [Indexed: 01/07/2023]
Abstract
Recent advances in microelectronics and biosensors are enabling developments of innovative biochips for advanced healthcare by providing fully integrated platforms for continuous monitoring of a large set of human disease biomarkers. Continuous monitoring of several human metabolites can be addressed by using fully integrated and minimally invasive devices located in the sub-cutis, typically in the peritoneal region. This extends the techniques of continuous monitoring of glucose currently being pursued with diabetic patients. However, several issues have to be considered in order to succeed in developing fully integrated and minimally invasive implantable devices. These innovative devices require a high-degree of integration, minimal invasive surgery, long-term biocompatibility, security and privacy in data transmission, high reliability, high reproducibility, high specificity, low detection limit and high sensitivity. Recent advances in the field have already proposed possible solutions for several of these issues. The aim of the present paper is to present a broad spectrum of recent results and to propose future directions of development in order to obtain fully implantable systems for the continuous monitoring of the human metabolism in advanced healthcare applications.
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Affiliation(s)
- Sandro Carrara
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Sara Ghoreishizadeh
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Jacopo Olivo
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Irene Taurino
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Camilla Baj-Rossi
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Andrea Cavallini
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Maaike Op de Beeck
- Interuniversity Microelectronics Centre (IMEC), B-3001 Leuven, Belgium; E-Mail:
| | - Catherine Dehollain
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Wayne Burleson
- Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA 01003, USA; E-Mail:
| | - Francis Gabriel Moussy
- Brunel Institute for Bioengineering, University of Brunel, West London, UB8 3PH, UK; E-Mail:
| | - Anthony Guiseppi-Elie
- Department of Electrical and Computer Engineering, Center for Bioelectronics, Biosensors and Biochips, Clemson University, Anderson, SC 29625, USA; E-Mail:
- ABTECH Scientific, Inc., Richmond, VA 23219, USA
| | - Giovanni De Micheli
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
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Yang YC, Dong SW, Shen T, Jian CX, Chang HJ, Li Y, He FT, Zhou JX. A Label-Free Amperometric Immunoassay for Thrombomodulin Using Graphene/Silver-Silver Oxide Nanoparticles as a Immobilization Matrix. ANAL LETT 2012. [DOI: 10.1080/00032719.2011.653896] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Omidfar K, Zarei H, Gholizadeh F, Larijani B. A high-sensitivity electrochemical immunosensor based on mobile crystalline material-41–polyvinyl alcohol nanocomposite and colloidal gold nanoparticles. Anal Biochem 2012; 421:649-56. [DOI: 10.1016/j.ab.2011.12.022] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Revised: 11/28/2011] [Accepted: 12/09/2011] [Indexed: 10/14/2022]
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Steunou N, Mousty C, Durupthy O, Roux C, Laurent G, Simonnet-Jégat C, Vigneron J, Etcheberry A, Bonhomme C, Livage J, Coradin T. A general route to nanostructured M[V3O8] and Mx[V6O16] (x = 1 and 2) and their first evaluation for building enzymatic biosensors. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm30485f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Staying alive: new perspectives on cell immobilization for biosensing purposes. Anal Bioanal Chem 2011; 402:1785-97. [PMID: 21922308 DOI: 10.1007/s00216-011-5364-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2011] [Revised: 08/10/2011] [Accepted: 08/24/2011] [Indexed: 01/09/2023]
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Zheng L, Xiong L, Zheng D, Li Y, Liu Q, Han K, Liu W, Tao K, Yang S, Xia J. Bilayer lipid membrane biosensor with enhanced stability for amperometric determination of hydrogen peroxide. Talanta 2011; 85:43-8. [PMID: 21645667 DOI: 10.1016/j.talanta.2011.02.048] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Revised: 02/18/2011] [Accepted: 02/26/2011] [Indexed: 11/28/2022]
Abstract
In this paper, a polydopamine (PDA) film is electropolymerized on the surface of bilayer lipid membrane (BLM) which is immobilized with horseradish peroxidase (HRP). The coverage of the PDA film on HRP/BLM electrode is monitored by electrochemical impedance spectroscopy (EIS). The electrocatalytic reduction of H(2)O(2) at the PDA/HRP/BLM electrode is studied by means of cyclic voltammetry (CV). The biosensor has a fast response to H(2)O(2) of less than 5s and an excellent linear relationship is obtained in the concentration range from 2.5×10(-7) to 3.1×10(-3) molL(-1), with a detection limit of 1.0×10(-7) molL(-1) (S/N=3). The response current of BLM/HRP/PDA biosensor retains 84% of its original response after being stored in 0.1 molL(-1) pH 7.0 PBS at 4°C for 3 weeks. The selectivity, repeatability, and storage stability of PDA/HRP/BLM biosensor are greatly enhanced by the coverage of polydopamine film on BLM.
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Affiliation(s)
- Longzhen Zheng
- Department of Chemistry and Chemical Engineering, East China Jiao Tong University, Nanchang, Jiangxi 330013, PR China.
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Rothwell SA, O'Neill RD. Effects of applied potential on the mass of non-conducting poly(ortho-phenylenediamine) electro-deposited on EQCM electrodes: comparison with biosensor selectivity parameters. Phys Chem Chem Phys 2011; 13:5413-21. [PMID: 21359356 DOI: 10.1039/c0cp02341h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An electrochemical quartz-crystal microbalance (EQCM) was used to determine the mass of poly-(o-phenylenediamine) (PoPD) layers electro-deposited at different applied potentials in neutral buffered monomer solution, conditions that produce the insulating form of the polymer used as a permselective membrane in biosensor applications. There was a systematic increase in the total, steady state PoPD mass deposited for fixed applied potentials from 0.05 to 0.6 V vs. SCE, followed by a plateau up to 0.8 V. Comparison of PoPD mass and permselectivity parameters indicates that the ability of the passivating form of PoPD to block interference species in biosensor applications is not related in a simple way to the mass of material deposited on the surface. Instead, effects of the applied electropolymerisation potential in driving the electro-oxidation of oPD dimers and oligomers formed during the electro-deposition process are likely to have a more direct impact on the selectivity characteristics of the PoPD layer. The results highlight the usefulness of apparent permeabilities, especially of ascorbic acid, in revealing differences between PoPD layers electro-deposited under different conditions.
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Affiliation(s)
- Sharon A Rothwell
- UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
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Teles FSRR. Biosensors and rapid diagnostic tests on the frontier between analytical and clinical chemistry for biomolecular diagnosis of dengue disease: a review. Anal Chim Acta 2011; 687:28-42. [PMID: 21241843 PMCID: PMC7094386 DOI: 10.1016/j.aca.2010.12.011] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 11/09/2010] [Accepted: 12/07/2010] [Indexed: 11/26/2022]
Abstract
The past decades have witnessed enormous technological improvements towards the development of simple, cost-effective and accurate rapid diagnostic tests for detection and identification of infectious pathogens. Among them is dengue virus, the etiologic agent of the mosquito-borne dengue disease, one of the most important emerging infectious pathologies of nowadays. Dengue fever may cause potentially deadly hemorrhagic symptoms and is endemic in the tropical and sub-tropical world, being also a serious threat to temperate countries in the developed world. Effective diagnostics for dengue should be able to discriminate among the four antigenically related dengue serotypes and fulfill the requirements for successful decentralized (point-of-care) testing in the harsh environmental conditions found in most tropical regions. The accurate identification of circulating serotypes is crucial for the successful implementation of vector control programs based on reliable epidemiological predictions. This paper briefly summarizes the limitations of the main conventional techniques for biomolecular diagnosis of dengue disease and critically reviews some of the most relevant biosensors and rapid diagnostic tests developed, implemented and reported so far for point-of-care testing of dengue infections. The invaluable contributions of microfluidics and nanotechnology encompass the whole paper, while evaluation concerns of rapid diagnostic tests and foreseen technological improvements in this field are also overviewed for the diagnosis of dengue and other infectious and tropical diseases as well.
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Key Words
- cdc, centers for disease control
- denv1–4, dengue virus serotypes (1–4)
- ssrna, single-stranded ribonucleic acid
- orf, open-reading frame
- ns1, non-structural 1
- dhf, dengue hemorrhagic fever
- dss, dengue shock syndrome
- who, world health organization
- hi, hemagglutination-inhibition
- mac-eia, monoclonal antibody capture-enzyme linked immunosorbent assay
- rt-pcr, reverse transcription-polymerase chain reaction
- 3′-nr, 3′noncoding region
- rna, ribonucleic acid
- igg, immunoglobulin g
- igm, immunoglobulin m
- dna, deoxyribonucleic acid
- qcm, quartz-crystal microbalance
- mip, molecularly imprinted polymer
- gnp, gold nanoparticle
- sam, self-assembled monolayer
- bsa, bovine serum albumin
- spr, surface plasmon resonance
- nasba, nucleic acid sequence-based amplification
- s/n, signal-to-noise ratio
- cmos, complementary metal oxide semiconductor
- fia, flow-injection analysis
- fccs, fluorescence cross-correlation spectroscopy
- fcs, fluorescence correlation spectroscopy
- eis, electrochemical impedance spectroscopy
- bst, barium strontium titanate
- fet, field-effect transistor
- pna, peptide nucleic-acid
- lod, limit of detection
- cdna, complementary dna
- tdr, special programme for research and training in tropical diseases
- undp, united nations development programme
- pdvi, pediatric dengue vaccine initiative
- stard, standards for reporting of diagnostic accuracy
- fiocruz, fundação oswaldo cruz
- dpp®, dual-path platform
- blm, bilayer lipid membrane
- qd, quantum dot
- cnt, carbon nanotube
- ms, mass spectrometry
- sars, severe acute respiratory syndrome
- biosensor
- dengue
- diagnosis
- evaluation
- rapid test
- tropical disease
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Affiliation(s)
- Fernando Sérgio Rodrigues Ribeiro Teles
- Centre for Malaria and Tropical Diseases, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Rua da Junqueira 100, 1349-008 Lisboa, Portugal.
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Su L, Jia W, Hou C, Lei Y. Microbial biosensors: A review. Biosens Bioelectron 2011; 26:1788-99. [DOI: 10.1016/j.bios.2010.09.005] [Citation(s) in RCA: 325] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Revised: 08/29/2010] [Accepted: 09/02/2010] [Indexed: 02/01/2023]
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Viable but nonculturable cells used in biosensor fabrication for long-term storage stability. Talanta 2010; 83:31-5. [DOI: 10.1016/j.talanta.2010.08.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 08/13/2010] [Accepted: 08/24/2010] [Indexed: 11/18/2022]
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Mohd Zain NA, Mohd Suardi S, Idris A. Hydrolysis of liquid pineapple waste by invertase immobilized in PVA–alginate matrix. Biochem Eng J 2010. [DOI: 10.1016/j.bej.2010.02.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Muginova SV, Galimova AZ, Polyakov AE, Shekhovtsova TN. Ionic liquids in enzymatic catalysis and biochemical methods of analysis: Capabilities and prospects. JOURNAL OF ANALYTICAL CHEMISTRY 2010. [DOI: 10.1134/s1061934810040027] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Rothwell SA, Kinsella ME, Zain ZM, Serra PA, Rocchitta G, Lowry JP, O'Neill RD. Contributions by a novel edge effect to the permselectivity of an electrosynthesized polymer for microbiosensor applications. Anal Chem 2009; 81:3911-8. [PMID: 19371060 DOI: 10.1021/ac900162c] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Pt electrodes of different sizes (2 x 10(-5)-2 x 10(-2) cm(2)) and geometries (disks and cylinders) were coated with the ultrathin non-conducting form of poly(o-phenylenediamine), PPD, using amperometric electrosynthesis. Analysis of the ascorbic acid (AA) and H(2)O(2) apparent permeabilities for these Pt/PPD sensors revealed that the PPD deposited near the electrode insulation (Teflon or glass edge) was not as effective as the bulk surface PPD for blocking AA access to the Pt substrate. This discovery impacts on the design of implantable biosensors where electrodeposited polymers, such as PPD, are commonly used as the permselective barrier to block electroactive interference by reducing agents present in the target medium. The undesirable "edge effect" was particularly marked for small disk electrodes which have a high edge density (ratio of PPD-insulation edge length to electrode area), but was essentially absent for cylinder electrodes with a length of >0.2 mm. Sample biosensors, with a configuration based on these findings (25 microm diameter Pt fiber cylinders) and designed for brain neurotransmitter L-glutamate, behaved well in vitro in terms of Glu sensitivity and AA blocking.
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Affiliation(s)
- Sharon A Rothwell
- UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
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Teles F, Fonseca L. Applications of polymers for biomolecule immobilization in electrochemical biosensors. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2008. [DOI: 10.1016/j.msec.2008.04.010] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Salinas-Castillo A, Pastor I, Mallavia R, Mateo CR. Immobilization of a trienzymatic system in a sol–gel matrix: A new fluorescent biosensor for xanthine. Biosens Bioelectron 2008; 24:1059-62. [DOI: 10.1016/j.bios.2008.07.052] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Revised: 07/18/2008] [Accepted: 07/25/2008] [Indexed: 11/17/2022]
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Jiang HJ, Yang H, Akins D. Direct electrochemistry and electrocatalysis of catalase immobilized on a SWNT-nanocomposite film. J Electroanal Chem (Lausanne) 2008. [DOI: 10.1016/j.jelechem.2008.07.024] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wilson GS, Johnson MA. In-vivo electrochemistry: what can we learn about living systems? Chem Rev 2008; 108:2462-81. [PMID: 18558752 DOI: 10.1021/cr068082i] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- George S Wilson
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, USA.
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Affiliation(s)
- Benjamin J Privett
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
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Arotiba OA, Ignaszak A, Malgas R, Al-Ahmed A, Baker PG, Mapolie SF, Iwuoha EI. An electrochemical DNA biosensor developed on novel multinuclear nickel(II) salicylaldimine metallodendrimer platform. Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2007.08.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Nadzhafova O, Etienne M, Walcarius A. Direct electrochemistry of hemoglobin and glucose oxidase in electrodeposited sol–gel silica thin films on glassy carbon. Electrochem commun 2007. [DOI: 10.1016/j.elecom.2007.01.010] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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