51
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Wilson GS. Native glucose oxidase does not undergo direct electron transfer. Biosens Bioelectron 2017; 82:vii-viii. [PMID: 27137704 DOI: 10.1016/j.bios.2016.04.083] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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52
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Galbán J, Sanz-Vicente I, Navarro J, de Marcos S. The intrinsic fluorescence of FAD and its application in analytical chemistry: a review. Methods Appl Fluoresc 2016; 4:042005. [DOI: 10.1088/2050-6120/4/4/042005] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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53
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Gonçales VR, Colombo RN, Minadeo MA, Matsubara EY, Rosolen JM, Córdoba de Torresi SI. Three-dimensional graphene/carbon nanotubes hybrid composites for exploring interaction between glucose oxidase and carbon based electrodes. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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54
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Kormányos A, Hossain MS, Ghadimkhani G, Johnson JJ, Janáky C, de Tacconi NR, Foss FW, Paz Y, Rajeshwar K. Flavin Derivatives with Tailored Redox Properties: Synthesis, Characterization, and Electrochemical Behavior. Chemistry 2016; 22:9209-17. [PMID: 27243969 DOI: 10.1002/chem.201600207] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Indexed: 11/11/2022]
Abstract
This study establishes structure-property relationships for four synthetic flavin molecules as bioinspired redox mediators in electro- and photocatalysis applications. The studied flavin compounds were disubstituted with polar substituents at the N1 and N3 positions (alloxazine) or at the N3 and N10 positions (isoalloxazines). The electrochemical behavior of one such synthetic flavin analogue was examined in detail in aqueous solutions of varying pH in the range from 1 to 10. Cyclic voltammetry, used in conjunction with hydrodynamic (rotating disk electrode) voltammetry, showed quasi-reversible behavior consistent with freely diffusing molecules and an overall global 2e(-) , 2H(+) proton-coupled electron transfer scheme. UV/Vis spectroelectrochemical data was also employed to study the pH-dependent electrochemical behavior of this derivative. Substituent effects on the redox behavior were compared and contrasted for all the four compounds, and visualized within a scatter plot framework to afford comparison with prior knowledge on mostly natural flavins in aqueous media. Finally, a preliminary assessment of one of the synthetic flavins was performed of its electrocatalytic activity toward dioxygen reduction as a prelude to further (quantitative) studies of both freely diffusing and tethered molecules on various electrode surfaces.
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Affiliation(s)
- Attila Kormányos
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Texas, 76019, USA.,Department of Physical Chemistry and Materials Science, University of Szeged, Szeged, 6720, Hungary.,MTA-SZTE "Lendület" Photoelectrochemistry Research Group, Rerrich Square 1, Szeged, 6720, Hungary
| | - Mohammad S Hossain
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Texas, 76019, USA
| | - Ghazaleh Ghadimkhani
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Texas, 76019, USA
| | - Joe J Johnson
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Texas, 76019, USA
| | - Csaba Janáky
- Department of Physical Chemistry and Materials Science, University of Szeged, Szeged, 6720, Hungary.,MTA-SZTE "Lendület" Photoelectrochemistry Research Group, Rerrich Square 1, Szeged, 6720, Hungary
| | - Norma R de Tacconi
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Texas, 76019, USA
| | - Frank W Foss
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Texas, 76019, USA
| | - Yaron Paz
- Department of Chemical Engineering, Technion, Haifa, 32000, Israel
| | - Krishnan Rajeshwar
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Texas, 76019, USA.
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Castaing V, Álvarez-Martos I, Ferapontova EE. Wiring of Glucose Oxidizing Flavin Adenine Dinucleotide-Dependent Enzymes by Methylene Blue-Modified Third Generation Poly(amidoamine) Dendrimers Attached to Spectroscopic Graphite Electrodes. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.217] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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57
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Schulz C, Kittl R, Ludwig R, Gorton L. Direct Electron Transfer from the FAD Cofactor of Cellobiose Dehydrogenase to Electrodes. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01854] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christopher Schulz
- Department of Biochemistry and Structural Biology, Lund University, SE-22100 Lund, Sweden
| | - Roman Kittl
- Department of Food Sciences and Technology, Food Biotechnology Laboratory, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
| | - Roland Ludwig
- Department of Food Sciences and Technology, Food Biotechnology Laboratory, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
| | - Lo Gorton
- Department of Biochemistry and Structural Biology, Lund University, SE-22100 Lund, Sweden
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58
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Zhang Z, Hao J, Xiao T, Yu P, Mao L. Online electrochemical systems for continuous neurochemical measurements with low-potential mediator-based electrochemical biosensors as selective detectors. Analyst 2015; 140:5039-47. [DOI: 10.1039/c5an00593k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This study demonstrates a new strategy to develop online electrochemical systems (OECSs) for continuously monitoring neurochemicals by efficiently integrating in vivo microdialysis with an oxidase-based electrochemical biosensor with low-potential electron mediators to shuttle the electron transfer of the oxidases.
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Affiliation(s)
- Zipin Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Jie Hao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Tongfang Xiao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
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