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Yuan Z, Dai H, Liu X, Duan S, Shen Y, Zhang Q, Shu Z, Xiao A, Wang J. An electrochemical immunosensor based on prussian blue@ zeolitic imidazolate framework-8 nanocomposites probe for the detection of deoxynivalenol in grain products. Food Chem 2022; 405:134842. [DOI: 10.1016/j.foodchem.2022.134842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/06/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
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2
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Huang Z, Shu Z, Xiao A, Pi F, Li Y, Dai H, Wang J. Determination of aflatoxin B1 in rice flour based on an enzyme-catalyzed Prussian blue probe. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Rison S, Akshaya KB, Bhat VS, Shanker G, Maiyalagan T, Joice EK, Hegde G, Varghese A. MnO
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Nanoclusters Decorated on GrapheneModified Pencil Graphite Electrode for Non‐Enzymatic Determination of Cholesterol. ELECTROANAL 2020. [DOI: 10.1002/elan.202000049] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Sherin Rison
- Christ Academy Institute for Advanced Studies Christ Nagar Bangalore 560083
- Department of Chemistry CHRIST Deemed to be University Bangalore 560029
| | - K. B. Akshaya
- Department of Chemistry CHRIST Deemed to be University Bangalore 560029
| | - Vinay S Bhat
- Centre for Nano-materials and Displays B.M.S. College of Engineering Bull Temple Road Bengaluru 560019 India
| | - G. Shanker
- Department of Chemistry JnanaBharati Campus Bangalore University Bangalore India
| | - T. Maiyalagan
- Department of Chemistry SRM Institute of Science and Technology Kattankulathur 603203 India
| | - E. K. Joice
- Christ Academy Institute for Advanced Studies Christ Nagar Bangalore 560083
| | - Gurumurthy Hegde
- Centre for Nano-materials and Displays B.M.S. College of Engineering Bull Temple Road Bengaluru 560019 India
| | - Anitha Varghese
- Department of Chemistry CHRIST Deemed to be University Bangalore 560029
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Functionalized magnetic nanomaterials for electrochemical biosensing of cholesterol and cholesteryl palmitate. Mikrochim Acta 2020; 187:225. [PMID: 32170399 DOI: 10.1007/s00604-020-4203-1] [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: 10/11/2019] [Accepted: 02/28/2020] [Indexed: 10/24/2022]
Abstract
Synthesis and functionalization of magnetite nanoparticles (Fe3O4) was achieved with the view to covalently bind both cholesterol oxidase and cholesterol esterase biorecognition agents for the development of free and total cholesterol biosensors. Prior to enzyme attachment, Fe3O4 was functionalized with 3-aminopropyltriethoxysilane (APTES) and polyamidoamine (PAMAM) dendrimer. Characterization of the material was performed by FT-IR and UV spectroscopy, SEM/EDX surface analysis and electrochemical investigations. The response to cholesterol and its palmitate ester was examined using cyclic voltammetry. Optimum analytical performance for the free cholesterol biosensor was obtained using APTES-functionalized magnetite with a sensitivity of 101.9 μA mM-1 cm-2, linear range 0.1-1 mM and LOD of 80 μM when operated at 37 °C. In the case of the total cholesterol biosensor, the best analytical performance was obtained using PAMAM dendrimer-modified magnetite with sensitivity of 73.88 μA mM-1 cm-2 and linear range 0.1-1.5 mM, with LOD of 90 μM. A stability study indicated that the free cholesterol biosensors retained average activity of 98% after 25 days while the total cholesterol biosensors retained 85% activity upon storage over the same period. Graphical abstract Schematic representation of cholesterol esterase and oxidase loaded magnetic nanoparticles (Fe3O4@APTES or Fe3O4@APTES-PAMAM) generating hydrogen peroxide from cholesterol palmitate.
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Antony N, Unnikrishnan L, Mohanty S, Nayak SK. The imperative role of polymers in enzymatic cholesterol biosensors- an overview. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2019.1576197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Neethu Antony
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
| | - Lakshmi Unnikrishnan
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
| | - Smita Mohanty
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
| | - Sanjay K. Nayak
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
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Terbouche A, Ait-Ramdane-Terbouche C, Bendjilali Z, Berriah H, Lakhdari H, Lerari D, Bachari K, Mezaoui D, Bensiradj NEH, Guegan JP, Hauchard D. Synthesis, spectral characterization, molecular modeling, antibacterial and antioxidant activities and stability study of binuclear Pd(II) and Ru(III) complexes with novel bis-[1-(2-[(2-hydroxynaphthalen-1-yl)methylidene]amino}ethyl)-1-ethyl-3-phenylthiourea] ligand: Application to detection of cholesterol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 205:146-159. [PMID: 30015020 DOI: 10.1016/j.saa.2018.07.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 07/01/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
A novel bis-[1-(2-[(2-hydroxynaphthalen-1-yl) methylidene]amino}ethyl)-1-ethyl-3-phenylthiourea] Schiff base (L) and its binuclear palladium and ruthenium complexes have been prepared and characterized by ESI-MS, elemental analysis, NMR (1H NMR, 13C NMR, COSY, NEOSY and HSQC), FT-IR, ATR, UV-Visible spectra, TGA measurements, conductivity and cyclic voltammetry. The experimental results and the molecular parameters calculated using DFT method revealed a square planar geometry around Pd and octahedral geometry around ruthenium metal. The antibacterial activity of the ligand L and its complexes was evaluated against different human bacteria. In addition, the formation constants of the synthesized Schiff base-metal complexes and the systems formed with these chelates and cholesterol were estimated using spectrophotometric technique. The detection of cholesterol using novel Pd and Ru Schiff base complexes was studied using fluorometric method, and the measurements showed that the sensitive fluorometric response towards cholesterol analysis was determined using palladium complex. The limit of detection (LOD) of cholesterol calculated using this complex (4.6 μM) is lower (better) than LOD found using ruthenium complex (19.1 μM) and different compounds previously published around linear range of 0-5 mM.
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Affiliation(s)
- Achour Terbouche
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), BP384, Bou-Ismail RP 42004, Tipaza, Algeria.
| | - Chafia Ait-Ramdane-Terbouche
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), BP384, Bou-Ismail RP 42004, Tipaza, Algeria
| | - Zineb Bendjilali
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), BP384, Bou-Ismail RP 42004, Tipaza, Algeria; Faculté de Chimie, Université USTHB, 16111 Alger, Algeria
| | - Hafida Berriah
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), BP384, Bou-Ismail RP 42004, Tipaza, Algeria; Faculté de Chimie, Université USTHB, 16111 Alger, Algeria
| | - Houria Lakhdari
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), BP384, Bou-Ismail RP 42004, Tipaza, Algeria
| | - Djahida Lerari
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), BP384, Bou-Ismail RP 42004, Tipaza, Algeria
| | - Khaldoun Bachari
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), BP384, Bou-Ismail RP 42004, Tipaza, Algeria
| | - Djillali Mezaoui
- Laboratoire Sciences des Matériaux, Faculté de Chimie, Université USTHB, 16111 Alger, Algeria
| | - Nour El Houda Bensiradj
- Laboratoire de Chimie Théorique Computationnelle et Photonique, Faculté de Chimie, Université USTHB, 16111 Alger, Algeria
| | - Jean-Paul Guegan
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Ecole Nationale Supérieure de Chimie de Rennes, 11 Allée de Beaulieu, 35708 Rennes, France
| | - Didier Hauchard
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Ecole Nationale Supérieure de Chimie de Rennes, 11 Allée de Beaulieu, 35708 Rennes, France; Université Bretagne Loire, 1 Place Paul Ricoeur, 35000 Rennes, France
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7
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Extracellular cholesterol oxidase production by Streptomyces aegyptia, in vitro anticancer activities against rhabdomyosarcoma, breast cancer cell-lines and in vivo apoptosis. Sci Rep 2018; 8:2706. [PMID: 29426900 PMCID: PMC5807524 DOI: 10.1038/s41598-018-20786-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 01/24/2018] [Indexed: 11/08/2022] Open
Abstract
In recent years, microbial cholesterol oxidases have gained great attention due to its widespread use in medical applications for serum cholesterol determination. Streptomyces aegyptia strain NEAE-102 exhibited high level of extracellular cholesterol oxidase production using a minimum medium containing cholesterol as the sole source of carbon. Fifteen variables were screened using Plackett–Burman design for the enhanced cholesterol oxidase production. The most significant variables affecting enzyme production were further optimized by using the face-centered central composite design. The statistical optimization resulted in an overall 4.97-fold increase (15.631 UmL−1) in cholesterol oxidase production in the optimized medium as compared with the unoptimized medium before applying Plackett Burman design (3.1 UmL−1). The purified cholesterol oxidase was evaluated for its in vitro anticancer activities against five human cancer cell lines. The selectivity index values on rhabdomyosarcoma and breast cancer cell lines were 3.26 and 2.56; respectively. The in vivo anticancer activity of cholesterol oxidase was evaluated against Ehrlich solid tumor model. Compared with control mice, tumors growth was significantly inhibited in the mice injected with cholesterol oxidase alone, doxorubicin alone and cholesterol oxidase/doxorubicin combination by 60.97%, 72.99% and 97.04%; respectively. These results demonstrated that cholesterol oxidase can be used as a promising natural anticancer drug.
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Sharma D, Lee J, Seo J, Shin H. Development of a Sensitive Electrochemical Enzymatic Reaction-Based Cholesterol Biosensor Using Nano-Sized Carbon Interdigitated Electrodes Decorated with Gold Nanoparticles. SENSORS 2017; 17:s17092128. [PMID: 28914766 PMCID: PMC5621016 DOI: 10.3390/s17092128] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 09/08/2017] [Accepted: 09/14/2017] [Indexed: 01/11/2023]
Abstract
We developed a versatile and highly sensitive biosensor platform. The platform is based on electrochemical-enzymatic redox cycling induced by selective enzyme immobilization on nano-sized carbon interdigitated electrodes (IDEs) decorated with gold nanoparticles (AuNPs). Without resorting to sophisticated nanofabrication technologies, we used batch wafer-level carbon microelectromechanical systems (C-MEMS) processes to fabricate 3D carbon IDEs reproducibly, simply, and cost effectively. In addition, AuNPs were selectively electrodeposited on specific carbon nanoelectrodes; the high surface-to-volume ratio and fast electron transfer ability of AuNPs enhanced the electrochemical signal across these carbon IDEs. Gold nanoparticle characteristics such as size and morphology were reproducibly controlled by modulating the step-potential and time period in the electrodeposition processes. To detect cholesterol selectively using AuNP/carbon IDEs, cholesterol oxidase (ChOx) was selectively immobilized via the electrochemical reduction of the diazonium cation. The sensitivity of the AuNP/carbon IDE-based biosensor was ensured by efficient amplification of the redox mediators, ferricyanide and ferrocyanide, between selectively immobilized enzyme sites and both of the combs of AuNP/carbon IDEs. The presented AuNP/carbon IDE-based cholesterol biosensor exhibited a wide sensing range (0.005–10 mM) and high sensitivity (~993.91 µA mM−1 cm−2; limit of detection (LOD) ~1.28 µM). In addition, the proposed cholesterol biosensor was found to be highly selective for the cholesterol detection.
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Affiliation(s)
- Deepti Sharma
- Department of Mechanical Engineering , Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Korea.
| | - Jongmin Lee
- Department of Mechanical Engineering , Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Korea.
| | - Junyoung Seo
- Department of Mechanical Engineering , Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Korea.
| | - Heungjoo Shin
- Department of Mechanical Engineering , Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Korea.
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9
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Widi RK, Trisulo DC, Budhyantoro A, Chrisnasari R. Preparation of immobilized glucose oxidase wafer enzyme on calcium-bentonite modified by surfactant. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1757-899x/223/1/012050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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10
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Chebl M, Moussa Z, Peurla M, Patra D. Polyelectrolyte mediated nano hybrid particle as a nano-sensor with outstandingly amplified specificity and sensitivity for enzyme free estimation of cholesterol. Talanta 2017; 169:104-114. [DOI: 10.1016/j.talanta.2017.03.070] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/22/2017] [Accepted: 03/23/2017] [Indexed: 02/08/2023]
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11
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Abolghasemi MM, Ghorbani-Cheghamarani A, Babakhanian A. A novel electrochemical sensing platform based on Pt/PPy/Eosin-Y for the determination of cadmium. NEW J CHEM 2017. [DOI: 10.1039/c7nj02080e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this research work, a novel sensing platform has been designed for the determination of cadmium (Cd2+) based on the modification of a bare platinum (Pt) electrode with pyrrole (Py) and Eosin-Y (yellowish) using electro-polymerization and electro-deposition procedures.
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Affiliation(s)
| | | | - Arash Babakhanian
- Department of Chemistry
- College of Science
- Kermanshah Branch
- Islamic Azad University
- Kermanshah
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12
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Fabrication of a novel dual mode cholesterol biosensor using titanium dioxide nanowire bridged 3D graphene nanostacks. Biosens Bioelectron 2016; 84:64-71. [DOI: 10.1016/j.bios.2015.11.042] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 11/06/2015] [Accepted: 11/14/2015] [Indexed: 12/30/2022]
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13
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Suganthi G, Ramanathan G, Arockiadoss T, Sivagnanam UT. Facile synthesis of chitosan-capped ZnS nanoparticles as a soft biomimetic material in biosensing applications. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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14
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Munir S, Park SY. The development of a cholesterol biosensor using a liquid crystal/aqueous interface in a SDS-included β-cyclodextrin aqueous solution. Anal Chim Acta 2015; 893:101-7. [PMID: 26398428 DOI: 10.1016/j.aca.2015.08.051] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 08/22/2015] [Accepted: 08/26/2015] [Indexed: 10/23/2022]
Abstract
Sodium dodecyl sulphate (SDS) including β-cyclodextrin (β-CD) (β-CDSDS) was used to detect cholesterol at the 4-cyano-4'-pentylbiphenyl (5CB)/aqueous interface in transmission electron microscopy (TEM) grid cells. The β-CD acts as a host for SDS (guest). The guest SDS enclosed within the β-CD cavity was replaced with cholesterol by injecting cholesterol solution into the TEM cell at concentrations greater than 3 μM. The replacement of SDS with cholesterol was confirmed by pH measurement and high performance liquid chromatography (HPLC). The SDS excluded from the β-CD altered the planar orientation of the 5CB confined within the TEM grid cell to a homeotropic orientation. This planar-to-homeotropic transition was observed using a polarized optical microscope under crossed polarizers. This convenient TEM grid cell provides a new method for the selective detection of cholesterol without immobilization of the detecting receptors (enzyme, antibody, or aptamer) or the use of sophisticated instruments.
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Affiliation(s)
- Sundas Munir
- School of Applied Chemical Engineering, Department of Polymer Science & Engineering, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Soo-Young Park
- School of Applied Chemical Engineering, Department of Polymer Science & Engineering, Kyungpook National University, Daegu 702-701, Republic of Korea.
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15
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Srinivasan B, Tung S. Development and Applications of Portable Biosensors. ACTA ACUST UNITED AC 2015; 20:365-89. [DOI: 10.1177/2211068215581349] [Citation(s) in RCA: 122] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Indexed: 02/01/2023]
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16
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Kong B, Selomulya C, Zheng G, Zhao D. New faces of porous Prussian blue: interfacial assembly of integrated hetero-structures for sensing applications. Chem Soc Rev 2015. [PMID: 26214277 DOI: 10.1039/c5cs00397k] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Prussian blue (PB), the oldest synthetic coordination compound, is a classic and fascinating transition metal coordination material. Prussian blue is based on a three-dimensional (3-D) cubic polymeric porous network consisting of alternating ferric and ferrous ions, which provides facile assembly as well as precise interaction with active sites at functional interfaces. A fundamental understanding of the assembly mechanism of PB hetero-interfaces is essential to enable the full potential applications of PB crystals, including chemical sensing, catalysis, gas storage, drug delivery and electronic displays. Developing controlled assembly methods towards functionally integrated hetero-interfaces with adjustable sizes and morphology of PB crystals is necessary. A key point in the functional interface and device integration of PB nanocrystals is the fabrication of hetero-interfaces in a well-defined and oriented fashion on given substrates. This review will bring together these key aspects of the hetero-interfaces of PB nanocrystals, ranging from structure and properties, interfacial assembly strategies, to integrated hetero-structures for diverse sensing.
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Affiliation(s)
- Biao Kong
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, P. R. China.
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Talagaeva NV, Zolotukhina EV, Bezverkhyy I, Konev DV, Lacroute Y, Maksimova EY, Koryakin SL, Vorotyntsev MA. Stability of Prussian Blue–polypyrrole (PB/PPy) composite films synthesized via one-step redox-reaction procedure. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-2951-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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A Cholesterol Biosensor Based on the NIR Electrogenerated-Chemiluminescence (ECL) of Water-Soluble CdSeTe/ZnS Quantum Dots. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.01.073] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Li L, Wang Y, Pan L, Shi Y, Cheng W, Shi Y, Yu G. A nanostructured conductive hydrogels-based biosensor platform for human metabolite detection. NANO LETTERS 2015; 15:1146-51. [PMID: 25569673 DOI: 10.1021/nl504217p] [Citation(s) in RCA: 244] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The development of a scalable, low-cost, and versatile biosensor platform for the sensitive and rapid detection of human metabolites is of great interest for healthcare, pharmaceuticals, and medical science. On the basis of hierarchically nanostructured conducting polymer hydrogels, we designed a flexible biosensor platform that can detect various human metabolites, such as uric acid, cholesterol, and triglycerides. Owing to the unique features of conducting polymer hydrogels, such as high permeability to biosubstrates and rapid electron transfer, our biosensors demonstrate excellent sensing performance with a wide linear range (uric acid, 0.07-1 mM; cholesterol, 0.3-9 mM, and triglycerides, 0.2-5 mM), high sensitivity, low sensing limit, and rapid response time (∼3 s). Given the facile and scalable processability of hydrogels, the proposed conductive hydrogels-based biosensor platform shows great promise as a low-cost sensor kit for healthcare monitoring, clinical diagnostics, and biomedical devices.
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Affiliation(s)
- Lanlan Li
- Jiangsu Provincial Key Laboratory of Photonic and Electronic Materials, School of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
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20
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Babakhanian A, Ehzari H, Kaki S, Hamidi Z. RETRACTED: A novel modified electrode as GC/PPy–AuNPs–rGO/l-Cys/Ag@MUA nanostructure configuration for determination of CCP and CRP antibodies in human blood serum samples. Biosens Bioelectron 2015; 63:490-498. [DOI: 10.1016/j.bios.2014.07.082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/09/2014] [Accepted: 07/22/2014] [Indexed: 11/16/2022]
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21
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Monošík R, Stred'anský M, Šturdík E. Application of electrochemical biosensors in clinical diagnosis. J Clin Lab Anal 2014; 26:22-34. [PMID: 24833531 DOI: 10.1002/jcla.20500] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 09/08/2011] [Indexed: 11/08/2022] Open
Abstract
Analyses in the clinical area need quick and reliable analytical methods and devices. For this purpose, biosensors can be a suitable option, whereas they are constructed to be simple for use, specific for the target analyte, capable of continuous monitoring and giving quick results, potentially low-costing and portable. In this article, we describe electrochemical biosensors developed for clinical diagnosis, namely for glucose, lactate, cholesterol, urea, creatinine, DNA, antigens, antibodies, and cancer markers assays. Chosen biosensors showed desirable sensitivity, selectivity, and potential for application on real samples. They are often designed to avoid interference with undesired components present in the monitored systems.
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Affiliation(s)
- Rastislav Monošík
- Institute of Biochemistry, Nutrition and Health Protection, Faculty of Chemical and Food Technology, Slovak University of Technology, Bratislava, Slovak Republic. ,
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Sekretaryova AN, Beni V, Eriksson M, Karyakin AA, Turner APF, Vagin MY. Cholesterol self-powered biosensor. Anal Chem 2014; 86:9540-7. [PMID: 25164485 DOI: 10.1021/ac501699p] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Monitoring the cholesterol level is of great importance, especially for people with high risk of developing heart disease. Here we report on reagentless cholesterol detection in human plasma with a novel single-enzyme, membrane-free, self-powered biosensor, in which both cathodic and anodic bioelectrocatalytic reactions are powered by the same substrate. Cholesterol oxidase was immobilized in a sol-gel matrix on both the cathode and the anode. Hydrogen peroxide, a product of the enzymatic conversion of cholesterol, was electrocatalytically reduced, by the use of Prussian blue, at the cathode. In parallel, cholesterol oxidation catalyzed by mediated cholesterol oxidase occurred at the anode. The analytical performance was assessed for both electrode systems separately. The combination of the two electrodes, formed on high surface-area carbon cloth electrodes, resulted in a self-powered biosensor with enhanced sensitivity (26.0 mA M(-1) cm(-2)), compared to either of the two individual electrodes, and a dynamic range up to 4.1 mM cholesterol. Reagentless cholesterol detection with both electrochemical systems and with the self-powered biosensor was performed and the results were compared with the standard method of colorimetric cholesterol quantification.
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Affiliation(s)
- Alina N Sekretaryova
- Department of Physics, Chemistry and Biology, Linköping University , SE-581 83 Linköping, Sweden
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23
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Sharma R, Sinha RK, Agrawal VV. Electroactive Prussian Blue Encapsulated Iron Oxide Nanostructures for Mediator-Free Cholesterol Estimation. ELECTROANAL 2014. [DOI: 10.1002/elan.201400050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Sekretaryova AN, Vagin MY, Beni V, Turner AP, Karyakin AA. Unsubstituted phenothiazine as a superior water-insoluble mediator for oxidases. Biosens Bioelectron 2014; 53:275-82. [DOI: 10.1016/j.bios.2013.09.071] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 09/13/2013] [Accepted: 09/26/2013] [Indexed: 11/28/2022]
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Ali MA, Solanki PR, Patel MK, Dhayani H, Agrawal VV, John R, Malhotra BD. A highly efficient microfluidic nano biochip based on nanostructured nickel oxide. NANOSCALE 2013; 5:2883-2891. [PMID: 23446331 DOI: 10.1039/c3nr33459g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We present results of the studies relating to fabrication of a microfluidic biosensor chip based on nickel oxide nanorods (NRs-NiO) that is capable of directly measuring the concentration of total cholesterol in human blood through electrochemical detection. Using this chip we demonstrate, with high reliability and in a time efficient manner, the detection of cholesterol present in buffer solutions at clinically relevant concentrations. The microfluidic channel has been fabricated onto a nickel oxide nanorod-based electrode co-immobilized with cholesterol esterase (ChEt) and cholesterol oxidase (ChOx) that serves as the working electrode. Bare indium tin oxide served as the counter electrode. A Ag/AgCl wire introduced to the outlet of the microchannel acts as a reference electrode. The fabricated NiO nanorod-based electrode has been characterized using X-ray diffraction, Raman spectroscopy, HR-TEM, FT-IR, UV-visible spectroscopy and electrochemical techniques. The presented NRs-NiO based microfluidic sensor exhibits linearity in the range of 1.5-10.3 mM, a high sensitivity of 0.12 mA mM(-1) cm(-2) and a low value of 0.16 mM of the Michaelis-Menten constant (Km).
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Affiliation(s)
- Md Azahar Ali
- Department of Science and Technology Centre on Biomolecular Electronics, Biomedical Instrumentation Section, National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi-110012, India
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Hirai M, Muramatsu T, Ohnuki H, Hibi K, Ren H, Endo H. Carbon nanotube enhanced label-free immunosensor for amperometric determination of oocyte maturation-inducing hormone in fish. FISH PHYSIOLOGY AND BIOCHEMISTRY 2013; 39:299-308. [PMID: 22864705 DOI: 10.1007/s10695-012-9700-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2012] [Accepted: 07/19/2012] [Indexed: 06/01/2023]
Abstract
Maintaining high-quality fish eggs stably and efficiently is important for aquaculture. We developed a label-free immunosensor system for measuring 17,20β-dihydroxy-4-pregnen-3-one (DHP). DHP is suddenly secreted before ovulation as a maturation-inducing hormone in fish, and therefore, DHP levels are an indicator for predicting ovulation. The method is based on immunologic reactions and amperometric measurement using cyclic voltammetry (CV). For biomolecular immobilization on the surface of sensing electrode, Au electrode, we used self-assembled monolayers of thiol-containing compounds to fix anti-DHP immunoglobulin. In addition, we used a single-walled carbon nanotube to improve sensitivity. Using this electrode, we were able to determine the CV signal change caused by the antigen-antibody complex. The proposed immunosensor system showed a linear correlation (correlation coefficient: 0.9827) between the anodic peak current of the CV and the DHP level in range from 15.6 to 50,000 pg ml(-1). The sensor system was then applied to monitor DHP of goldfish (Carassius auratus). Blood plasma of fish was collected every 3 h after administering a DHP inducer. In the measurement, the anodic peak current of the CV showed distinct changes depending on DHP levels in the blood plasma. A good relationship was observed between DHP levels determined by our proposed system and the conventional method (correlation coefficient: 0.9351).
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Affiliation(s)
- Mutsuko Hirai
- Faculty of Marine Science, Tokyo University of Marine Science and Technology, 4-5-7, Konan, Minato-ku, Tokyo 108-8477, Japan
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An integrated sensing system for detection of cholesterol based on TiO2–graphene–Pt–Pd hybridnanocomposites. Biosens Bioelectron 2013; 42:532-8. [DOI: 10.1016/j.bios.2012.10.048] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 10/08/2012] [Accepted: 10/15/2012] [Indexed: 11/20/2022]
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Hassler BL, Worden RM, Mason AJ. A protein-based electrochemical biosensor array platform for integrated microsystems. IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS 2013; 7:43-51. [PMID: 23853278 DOI: 10.1109/tbcas.2012.2195661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This paper elucidates challenges in integrating different classes of proteins into a microsystem and presents an electrochemical array strategy for heterogeneous protein-based biosensors. The overlapping requirements and limitations imposed by biointerface formation, electrochemical characterization, and microsystem fabrication are identified. A planar electrode array is presented that synergistically resolves these requirements using thin film Au and Ag/AgCl electrodes on a dielectric substrate. Using molecular self-assembly, electrodes were modified by nano-structures of two diverse proteins, alkali ion-channel protein and alcohol dehydrogenase enzyme. Electrochemical impedance spectroscopy and cyclic voltammetry measurements were performed to characterize sensor response to alkali ion and alcohol, respectively. This work demonstrates the viability of the electrochemical microsystem platform for heterogeneous protein-based biosensor interfaces.
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Kumar H, Rani R. Development of biosensors for the detection of biological warfare agents: its issues and challenges. Sci Prog 2013; 96:294-308. [PMID: 24244972 PMCID: PMC10365506 DOI: 10.3184/003685013x13777066241280] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This review discusses current development in biosensors for the detection of biological warfare agents (BWAs). BWAs include bacteria, virus and toxins that are added deliberately into air water and food to spread terrorism and cause disease or death. The rapid and unambiguous detection and identification of BWAs with early warning signals for detecting possible biological attack is a major challenge for government agencies particularly military and health. The detection devices--biosensors--can be classified (according to their physicochemical transducers) into four types: electrochemical, nucleic acid, optical and piezoelectric. Advantages and limitations of biosensors are discussed in this review followed by an assessment of the current state of development of different types of biosensors. The research and development in biosensors for biological warfare agent detection is of great interest for the public as well as for governments.
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Affiliation(s)
- Harish Kumar
- Department of Chemistry, Ch. Devi Lal University, Sirsa, Haryana 125 055, India.
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Rawal R, Pundir C. Development of an amperometric sulfite biosensor based on SOx/PBNPs/PPY modified ITO electrode. Int J Biol Macromol 2012; 51:449-55. [DOI: 10.1016/j.ijbiomac.2012.06.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 03/09/2012] [Accepted: 06/07/2012] [Indexed: 12/12/2022]
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31
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Çolak Ö, Yaşar A, Çete S, Arslan F. Glucose biosensor based on the immobilization of glucose oxidase on electrochemically synthesized polypyrrole-poly(vinyl sulphonate) composite film by cross-linking with glutaraldehyde. ACTA ACUST UNITED AC 2012; 40:354-61. [DOI: 10.3109/10731199.2012.678364] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
Biosensors - classification, characterization and new trendsBiosensors represent promising analytical tools applicable in areas such as clinical diagnosis, food industry, environment monitoring and in other fields, where rapid and reliable analyses are needed. Some biosensors were successfully implemented in the commercial sphere, but majority needs to be improved in order to overcome some imperfections. This review covers the basic types, principles, constructions and use of biosensors as well as new trends used for their fabrication.
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Nossol E, Gorgatti Zarbin AJ. Transparent films from carbon nanotubes/Prussian blue nanocomposites: preparation, characterization, and application as electrochemical sensors. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c1jm14225a] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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34
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Eguílaz M, Villalonga R, Agüí L, Yáñez-Sedeño P, Pingarrón J. Gold nanoparticles: Poly(diallyldimethylammonium chloride)–carbon nanotubes composites as platforms for the preparation of electrochemical enzyme biosensors: Application to the determination of cholesterol. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2011.07.040] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Singh K, Solanki PR, Basu T, Malhotra BD. Polypyrrole/multiwalled carbon nanotubes-based biosensor for cholesterol estimation. POLYM ADVAN TECHNOL 2011. [DOI: 10.1002/pat.2020] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- K. Singh
- Amity School of Engineering and Technology; Amity University; Noida UP India
| | - Pratima R. Solanki
- Department of Science & Technology Centre on Biomolecular Electronics, Biomedical Instrumentation Section; National Physical Laboratory; Dr K. S. Krishnan Marg New Delhi 110012 India
| | - Tinku Basu
- Amity Institute of Nano Technology; Amity University; Noida 201 303 UP India
| | - B. D. Malhotra
- Department of Science & Technology Centre on Biomolecular Electronics, Biomedical Instrumentation Section; National Physical Laboratory; Dr K. S. Krishnan Marg New Delhi 110012 India
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Ping J, Wu J, Fan K, Ying Y. An amperometric sensor based on Prussian blue and poly(o-phenylenediamine) modified glassy carbon electrode for the determination of hydrogen peroxide in beverages. Food Chem 2011; 126:2005-9. [DOI: 10.1016/j.foodchem.2010.12.073] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2009] [Revised: 12/08/2010] [Accepted: 12/15/2010] [Indexed: 11/30/2022]
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Chen S, Ma L, Yuan R, Chai Y, Xiang Y, Wang C. Electrochemical sensor based on Prussian blue nanorods and gold nanochains for the determination of H2O2. Eur Food Res Technol 2010. [DOI: 10.1007/s00217-010-1364-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Plata MR, Contento AM, Ríos A. State-of-the-art of (bio)chemical sensor developments in analytical Spanish groups. SENSORS (BASEL, SWITZERLAND) 2010; 10:2511-76. [PMID: 22319260 PMCID: PMC3274191 DOI: 10.3390/s100402511] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 02/03/2010] [Accepted: 02/28/2010] [Indexed: 11/16/2022]
Abstract
(Bio)chemical sensors are one of the most exciting fields in analytical chemistry today. The development of these analytical devices simplifies and miniaturizes the whole analytical process. Although the initial expectation of the massive incorporation of sensors in routine analytical work has been truncated to some extent, in many other cases analytical methods based on sensor technology have solved important analytical problems. Many research groups are working in this field world-wide, reporting interesting results so far. Modestly, Spanish researchers have contributed to these recent developments. In this review, we summarize the more representative achievements carried out for these groups. They cover a wide variety of sensors, including optical, electrochemical, piezoelectric or electro-mechanical devices, used for laboratory or field analyses. The capabilities to be used in different applied areas are also critically discussed.
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Affiliation(s)
- María Reyes Plata
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla, La Mancha, 13004, Ciudad Real, Spain; E-Mails: (M.R.P.); (A.M.C.)
| | - Ana María Contento
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla, La Mancha, 13004, Ciudad Real, Spain; E-Mails: (M.R.P.); (A.M.C.)
| | - Angel Ríos
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla, La Mancha, 13004, Ciudad Real, Spain; E-Mails: (M.R.P.); (A.M.C.)
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Silk Mat as Bio-matrix for the Immobilization of Cholesterol Oxidase. Appl Biochem Biotechnol 2010; 162:1122-31. [DOI: 10.1007/s12010-010-8923-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2009] [Accepted: 02/01/2010] [Indexed: 10/19/2022]
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40
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Muhammet SM, Cete S, Arslan F, Yaşar A. Amperometric cholesterol biosensors based on the electropolymerization of pyrrole and aniline in sulphuric Acid for the determination of cholesterol in serum. ACTA ACUST UNITED AC 2010; 37:273-8. [PMID: 19922167 DOI: 10.3109/10731190903356453] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A new amperometric cholesterol biosensor was prepared by immobilizing cholesterol oxidase by a glutaraldehyde crosslinking procedure on polypyrrole-polyaniline (ppy-pani) composite film on the surface of a platinum electrode. In order to prepare a biosensor for the determination of cholesterol, electropolymerization of pyrrole and aniline on Pt surface was performed with an electrochemical cell containing pyrrole and aniline in sulphuric acid by cyclic voltammetry between 0.0 and 0,7 V (vs.Ag/AgCl) at a scan rate of 50 mV upon Pt electrode. The amperometric determination is based on the electrochemical detection of H(2)O(2), which is generated in enzymatic reaction of cholesterol. The cholesterol determined by the oxidation of enzymatically generated H(2)O(2) at 0.7 V vs. Ag/AgCl. The optimized cholesterol oxidase biosensor displayed linear working range and a response time of 300 s. The effects of pH and temperature were investigated and optimum parameters were found to be 7.0, 25 degrees C, respectively. In addition to this, the stability and reproducibility of biosensor were tried. Operational stability of the proposed cholesterol biosensor was obtained by periodical measurements of the biosensor response. Biosensor at optimum activity conditions was used in 30 activity assays in one day to determine the operational stability. The results show that 82% of the response current was retained after 30 activity assays. The electrode was stored in a refrigerator at 4 degrees C after the measurements. The storage stability of the biosensor was determined by performing activity assays within 23 days. The results demonstrate that 60% of the response current was retained after 23 days. Preparing biosensor is used for the analysis of cholesterol in serum.
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Affiliation(s)
- Sinan M Muhammet
- Technical Vocational School of Higher Education, Gazi University, Ankara, Turkey.
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41
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Labib M, Hedström M, Amin M, Mattiasson B. A novel competitive capacitive glucose biosensor based on concanavalin A-labeled nanogold colloids assembled on a polytyramine-modified gold electrode. Anal Chim Acta 2010; 659:194-200. [DOI: 10.1016/j.aca.2009.11.028] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2009] [Revised: 11/09/2009] [Accepted: 11/11/2009] [Indexed: 10/20/2022]
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42
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Li J. Electrocatalytic Oxidation of Nitrite at Gold Nanoparticle- polypyrrole Nanowire Modified Glassy Carbon Electrode. CHINESE J CHEM 2009. [DOI: 10.1002/cjoc.201090011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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43
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Preparation of a polypyrrole-polyvinylsulphonate composite film biosensor for determination of cholesterol based on entrapment of cholesterol oxidase. SENSORS 2009; 9:6435-45. [PMID: 22454593 PMCID: PMC3312452 DOI: 10.3390/s90806435] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2009] [Revised: 08/03/2009] [Accepted: 08/10/2009] [Indexed: 11/17/2022]
Abstract
In this paper, a novel amperometric cholesterol biosensor with immobilization of cholesterol oxidase on electrochemically polymerized polypyrrole-polyvinylsulphonate (PPy-PVS) films has been accomplished via the entrapment technique on the surface of a platinum electrode. Electropolymerization of pyrrole and polyvinylsulphonate on the Pt surface was carried out by cyclic voltammetry between -1.0 and +2.0 V (vs. Ag/AgCl) at a scan rate of 100 mV upon the Pt electrode with an electrochemical cell containing pyrrole and polyvinylsulphonate. The amperometric determination is based on the electrochemical detection of H(2)O(2) generated in the enzymatic reaction of cholesterol. Determination of cholesterol was carried out by the oxidation of enzymatically produced H(2)O(2) at 0.4 V vs. Ag/AgCl. The effects of pH and temperature were investigated and optimum parameters were found to be 7.25 and 35 °C, respectively. The storage stability and operational stability of the enzyme electrode were also studied. The results show that 32% of the response current was retained after 19 activity assays. The prepared cholesterol biosensor retained 43% of initial activity after 45 days when stored in 0.1 M phosphate buffer solution at 4 °C.
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Arya SK, Solanki PR, Datta M, Malhotra BD. Recent advances in self-assembled monolayers based biomolecular electronic devices. Biosens Bioelectron 2009; 24:2810-7. [DOI: 10.1016/j.bios.2009.02.008] [Citation(s) in RCA: 169] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2008] [Revised: 02/06/2009] [Accepted: 02/10/2009] [Indexed: 11/25/2022]
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45
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Thangamuthu R, Wu YC, Chen SM. Fe(CN)64−-Doped-Glutaraldehyde-Cross-Linked Poly-L-Lysine Film Electrode. Part 2: Stability Improvement and Selective Detection of Dopamine in the Presence of Ascorbic Acid. ELECTROANAL 2009. [DOI: 10.1002/elan.200804506] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Akkaya B, Şahin F, Demirel G, Tümtürk H. Functional polymeric supports for immobilization of cholesterol oxidase. Biochem Eng J 2009. [DOI: 10.1016/j.bej.2008.11.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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47
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Highly sensitive and selective cholesterol biosensor based on direct electron transfer of hemoglobin. Anal Biochem 2008; 383:25-30. [DOI: 10.1016/j.ab.2008.08.022] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Revised: 08/05/2008] [Accepted: 08/22/2008] [Indexed: 11/17/2022]
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48
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Matharu Z, Arya SK, Sumana G, Gupta V, Malhotra BD. Self-assembled monolayer for low density lipoprotein detection. J Mol Recognit 2008; 21:419-24. [DOI: 10.1002/jmr.922] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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49
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Khan R, Solanki PR, Kaushik A, Singh SP, Ahmad S, Malhotra BD. Cholesterol biosensor based on electrochemically prepared polyaniline conducting polymer film in presence of a nonionic surfactant. JOURNAL OF POLYMER RESEARCH 2008. [DOI: 10.1007/s10965-008-9237-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Hu Y, Zhang Z. Determination of free cholesterol based on a novel flow-injection chemiluminescence method by immobilizing enzyme. LUMINESCENCE 2008; 23:338-43. [DOI: 10.1002/bio.1042] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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