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Narouie S, Rounaghi GH, Saravani H, Shahbakhsh M. Multiwalled Carbon Nanotubes/4,4′‐dihydroxybiphenyl Nanolayered Composite for Voltammetric Detection of Phenol. ELECTROANAL 2021. [DOI: 10.1002/elan.202100572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- S. Narouie
- Department of Chemistry, Faculty of Sciences Ferdowsi University of Mashhad Mashhad P.O. Box 9177948974 Iran
| | - G. H. Rounaghi
- Department of Chemistry, Faculty of Sciences Ferdowsi University of Mashhad Mashhad P.O. Box 9177948974 Iran
| | - H. Saravani
- Inorganic Chemistry Research Laboratory, Department of Chemistry University of Sistan and Baluchestan Zahedan P.O. Box 98135-674 Iran
| | - M. Shahbakhsh
- Analytical Chemistry Research Laboratory, Department of Chemistry University of Sistan and Baluchestan P.O. Box 98135-674 Zahedan Iran
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Quezada V, Martinez T, Nelson R, Pérez-Fehrmann M, Zaragoza G, Vizcarra A, Kesternich V, Hernández-Saravia LP. A novel platform of using copper (II) complex with triazole-carboxilated modified as bidentated ligand SPCE for the detection of hydrogen peroxide in milk. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114763] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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The Investigation of Electrochemistry Behaviors of Tyrosinase Based on Directly-Electrodeposited Grapheneon Choline-Gold Nanoparticles. Molecules 2017. [PMID: 28644401 PMCID: PMC6152276 DOI: 10.3390/molecules22071047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A novel catechol (CA) biosensor was developed by embedding tyrosinase (Tyr) onto in situ electrochemical reduction graphene (EGR) on choline-functionalized gold nanoparticle (AuNPs-Ch) film. The results of UV-Vis spectra indicated that Tyr retained its original structure in the film, and an electrochemical investigation of the biosensor showed a pair of well-defined, quasi-reversible redox peaks with Epa = -0.0744 V and Epc = -0.114 V (vs. SCE) in 0.1 M, pH 7.0 sodium phosphate-buffered saline at a scan rate of 100 mV/s. The transfer rate constant ks is 0.66 s-1. The Tyr-EGR/AuNPs-Ch showed a good electrochemical catalytic response for the reduction of CA, with the linear range from 0.2 to 270 μM and a detection limit of 0.1 μM (S/N = 3). The apparent Michaelis-Menten constant was estimated to be 109 μM.
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Wu Q, Li Y, Xian H, Xu C, Wang L, Chen Z. Ultralow Pt-loading bimetallic nanoflowers: fabrication and sensing applications. NANOTECHNOLOGY 2013; 24:025501. [PMID: 23220775 DOI: 10.1088/0957-4484/24/2/025501] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Ultralow Pt-loading Au nanoflowers (AuNFs) were synthesized on a glassy carbon electrode surface by the underpotential deposition (UPD) monolayer redox replacement technique, which involves redox replacement of a copper UPD monolayer by PtCl(4)(2-) that can be reduced and deposited simultaneously. Field-emission scanning electron microscopy, energy dispersive spectroscopy, x-ray photoelectron spectroscopy and the electrochemical method were utilized to characterize the ultralow Pt-loading AuNFs. Cyclic voltammogram results showed that the ultralow Pt-loading AuNFs exhibited excellent electrocatalytic activity towards the reduction of hydrogen peroxide and the oxidation of glucose in neutral media, and the reaction pathway of glucose oxidation was changed from an intermediate process based on the electrosorption of glucose to a direct oxidation process. From chronoamperometric results, it could be obtained that this prepared biosensor had wide linear ranges and very low detection limits (DLs) for H(2)O(2) (0.025-94.3 μM; DL = 0.006 μM) and glucose (0.0028-8.0 mM; DL = 0.8 μM), which were much better than previous results.
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Affiliation(s)
- Qingqing Wu
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, People's Republic of China
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Deng YY, Liu FQ, Jin YL. Synthesis, crystal structure, and electrocatalytic properties of a copper(II) complex of 1,2-bis(2-benzimidazolyl)benzene. TRANSIT METAL CHEM 2012. [DOI: 10.1007/s11243-012-9577-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Introduction. CARBON NANOTUBES AS PLATFORMS FOR BIOSENSORS WITH ELECTROCHEMICAL AND ELECTRONIC TRANSDUCTION 2012. [DOI: 10.1007/978-3-642-31421-6_1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Chen J, Zhao L, Bai H, Shi G. Electrochemical detection of dioxygen and hydrogen peroxide by hemin immobilized on chemically converted graphene. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2011.03.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Zhang Y, Zheng J. Direct Electrochemistry and Electrocatalysis of Hemoglobin Based on Nafion-Room Temperature Ionic Liquids-Multiwalled Carbon Nanotubes Composite Film. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201190141] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kumar SA, Wang SF, Chang YT, Lu HC, Yeh CT. Electrochemical properties of myoglobin deposited on multi-walled carbon nanotube/ciprofloxacin film. Colloids Surf B Biointerfaces 2011; 82:526-31. [DOI: 10.1016/j.colsurfb.2010.10.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2009] [Revised: 10/02/2010] [Accepted: 10/06/2010] [Indexed: 11/29/2022]
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Eletrodeposited nickel oxide on a film of carbon nanotubes for monitoring nitric oxide release from rat kidney and drug samples. Mikrochim Acta 2011. [DOI: 10.1007/s00604-010-0525-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Electrochemical determination of nitrite via covalent immobilization of a single-walled carbon nanotubes and single stranded deoxyribonucleic acid nanocomposite on a glassy carbon electrode. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0404-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Zhuang R, Jian F, Wang K. Synthesis, characterization, and electrocatalysis of a dinuclear cobalt(III) thioxanthate complex. J COORD CHEM 2010. [DOI: 10.1080/00958971003792946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ruirui Zhuang
- a New Materials and Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology , Qingdao, Shandong 266042, P.R. China
| | - Fangfang Jian
- a New Materials and Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology , Qingdao, Shandong 266042, P.R. China
| | - Kefei Wang
- a New Materials and Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology , Qingdao, Shandong 266042, P.R. China
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Two new Co(II) complexes of benzimidazole: synthesis, characterization, and electrocatalysis. MONATSHEFTE FUR CHEMIE 2010. [DOI: 10.1007/s00706-010-0279-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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A new cobalt complex of 1-decyl-1H-benzo[d]imidazole: synthesis, characterization and electrocatalysis. TRANSIT METAL CHEM 2010. [DOI: 10.1007/s11243-010-9329-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zhuang R, Jian F, Wang K. Synthesis, characterization and performance of two new Co(II) complexes as electrocatalyst of hydrogen peroxide and trichloroacetic acid. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2009.09.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Esplandiu MJ, Pacios M, Cyganek L, Bartroli J, del Valle M. Enhancing the electrochemical response of myoglobin with carbon nanotube electrodes. NANOTECHNOLOGY 2009; 20:355502. [PMID: 19671979 DOI: 10.1088/0957-4484/20/35/355502] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this paper, the electrochemical behavior of different myoglobin-modified carbon electrodes is evaluated. In particular, the performance of voltammetric biosensors made of forest-like carbon nanotubes, carbon nanotube composites and graphite composites is compared by monitoring mainly the electrocatalytic reduction of H(2)O(2) by myoglobin and their corresponding electroanalytical characteristics. Graphite composites showed the worst electroanalytical performance, exhibiting a small linear range, a limit of detection (LOD) of 9 x 10(-5) M and low sensitivity. However, it was found that the electrochemical response was enhanced with the use of carbon nanotube-based electrodes with LOD up to 5 x 10(-8) M, higher sensitivities and wider linear range response. On the one hand, in the case of the CNT epoxy composite, the improvement in the response can be mainly attributed to its more porous surface which allows the immobilization of higher amounts of the electroactive protein. On the other hand, in the case of the forest-like CNT electrodes, the enhancement is due to an increase in the electron transfer kinetics. These findings encourage the use of myoglobin-modified carbon nanotube electrodes as potential (bio)sensors of H(2)O(2) or O(2) in biology, microbiology and environmental fields.
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Affiliation(s)
- M J Esplandiu
- Sensors and Biosensors Group, Department of Chemistry, Universitat Autónoma de Barcelona, Bellaterra, Barcelona, Spain.
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Zhuang RR, Jian FF, Wang K. An electrochemical sensing platform based on a new copper complex for the determination of hydrogen peroxide and nitrite. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2009; 10:045001. [PMID: 27877301 PMCID: PMC5090263 DOI: 10.1088/1468-6996/10/4/045001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Revised: 08/25/2009] [Accepted: 07/02/2009] [Indexed: 06/06/2023]
Abstract
A new copper(II) complex [Cu(C12H23N3)4Br2·2H2O] was synthesized and its structure was characterized by x-ray crystallography and elemental analysis. The copper atom had a distorted octahedron coordination involving two bromide anions and four nitrogen atoms from the 1-decyl-1H-[1,2,4]triazole ligands. Moreover, the electrochemical behavior and electrocatalysis of the carbon paste electrode (Cu-CPE) bulk-modified by the complex have been studied in detail. The Cu-CPE showed excellent electrocatalytic activities toward the reduction of hydrogen peroxide and nitrite, and the detection limit was much lower than that mentioned in earlier reports. This bulk-modified CPE has good reproducibility, long-term stability and surface renewability, which appear promising for constructing chemical sensors.
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Affiliation(s)
| | - Fang Fang Jian
- New Materials and Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology, Qingdao Shandong 266042, People’s Republic of China
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Liu J, Qiu J, Sun K, Chen J, Miao Y. Electrochemistry of Hemin Self-Assembled from Aqueous Hexadecyltrimethylammonium Bromide (CTAB) Solution on Single-Wall-Carbon-Nanotube-Modified Glassy Carbon Electrodes. Helv Chim Acta 2009. [DOI: 10.1002/hlca.200800301] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Liu X, Wong DKY. Electrocatalytic detection of estradiol at a carbon nanotube|Ni(Cyclam) composite electrode fabricated based on a two-factorial design. Anal Chim Acta 2007; 594:184-91. [PMID: 17586113 DOI: 10.1016/j.aca.2007.05.043] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2007] [Revised: 04/20/2007] [Accepted: 05/23/2007] [Indexed: 11/25/2022]
Abstract
In this work, we have developed a carbon nanotube|Ni(cyclam)-coated glassy carbon electrode to achieve minimal fouling effects and to catalyse the oxidation of the oestrogen, estradiol, during voltammetric detection. This electrode was fabricated by initially applying a Nafion-carbon nanotube mixture, and then electropolymerising Ni(cyclam) complexes on the electrode. During this process, a two-level factorial design was used to optimise experimental parameters including the amount of carbon nanotubes, the concentration of Nafion and the surface coverage of Ni(cyclam). A linear calibration plot between 0.5 and 40 microM estradiol was then obtained in synthetic laboratory standard solutions. Based on a signal-to-noise ratio of 3, a detection limit of 60 nM was estimated, which is below the typical estradiol level measured in a normal menstrual cycle. The electrodes were subsequently applied to the detection of estradiol in protein-free human serum samples. Comparable sensitivity between synthetic laboratory standard solutions and serum samples was obtained, indicating minimal interference effects from the serum matrix.
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Affiliation(s)
- Xiaoqiang Liu
- Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, NSW 2109, Australia
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