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Melin F, Hellwig P. Redox Properties of the Membrane Proteins from the Respiratory Chain. Chem Rev 2020; 120:10244-10297. [DOI: 10.1021/acs.chemrev.0c00249] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Frederic Melin
- Chimie de la Matière Complexe UMR 7140, Laboratoire de Bioelectrochimie et Spectroscopie, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67070 Strasbourg, France
| | - Petra Hellwig
- Chimie de la Matière Complexe UMR 7140, Laboratoire de Bioelectrochimie et Spectroscopie, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67070 Strasbourg, France
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Dhanjai, Sinha A, Lu X, Wu L, Tan D, Li Y, Chen J, Jain R. Voltammetric sensing of biomolecules at carbon based electrode interfaces: A review. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.11.010] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Portychová L, Schug KA. Instrumentation and applications of electrochemistry coupled to mass spectrometry for studying xenobiotic metabolism: A review. Anal Chim Acta 2017; 993:1-21. [PMID: 29078951 DOI: 10.1016/j.aca.2017.08.050] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 08/21/2017] [Accepted: 08/26/2017] [Indexed: 01/03/2023]
Abstract
The knowledge of metabolic pathways and biotransformation of xenobiotics, artificial substances foreign to the entire biological system, is crucial for elucidation of degradation routes of potentially toxic substances. Nowadays, there are many methods to simulate xenobiotic metabolism in the human body in vitro. In this review, the metabolism of various substances in the human body is described, followed by a summary of methods used for prediction of metabolic pathways and biotransformation. Above all, focus is placed on the coupling of electrochemistry to mass spectrometry, which is still a relatively new technique. This promising tool can mimic both oxidative phase I and conjugative phase II metabolism. Different experimental arrangements, with or without a separation step, and various applications of this technique are illustrated and critically reviewed.
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Affiliation(s)
- Lenka Portychová
- Research Institute for Organic Synthesis, Inc., 533 54 Rybitví, Czech Republic; Department of Analytical Chemistry, Palacký University, 771 46 Olomouc, Czech Republic
| | - Kevin A Schug
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA.
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El Khoury Y, Van Wilderen LJGW, Bredenbeck J. Ultrafast 2D-IR spectroelectrochemistry of flavin mononucleotide. J Chem Phys 2016; 142:212416. [PMID: 26049436 DOI: 10.1063/1.4916916] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We demonstrate the coupling of ultrafast two-dimensional infrared (2D-IR) spectroscopy to electrochemistry in solution and apply it to flavin mononucleotide, an important cofactor of redox proteins. For this purpose, we designed a spectroelectrochemical cell optimized for 2D-IR measurements in reflection and measured the time-dependent 2D-IR spectra of the oxidized and reduced forms of flavin mononucleotide. The data show anharmonic coupling and vibrational energy transfer between different vibrational modes in the two redox species. Such information is inaccessible with redox-controlled steady-state FTIR spectroscopy. The wide range of applications offered by 2D-IR spectroscopy, such as sub-picosecond structure determination, IR band assignment via energy transfer, disentangling reaction mixtures through band connectivity in the 2D spectra, and the measurement of solvation dynamics and chemical exchange can now be explored under controlled redox potential. The development of this technique furthermore opens new horizons for studying the dynamics of redox proteins.
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Affiliation(s)
- Youssef El Khoury
- Institut für Biophysik, Johann Wolfgang Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - Luuk J G W Van Wilderen
- Institut für Biophysik, Johann Wolfgang Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - Jens Bredenbeck
- Institut für Biophysik, Johann Wolfgang Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
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El Khoury Y, Van Wilderen LJGW, Vogt T, Winter E, Bredenbeck J. A spectroelectrochemical cell for ultrafast two-dimensional infrared spectroscopy. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:083102. [PMID: 26329169 DOI: 10.1063/1.4927533] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A spectroelectrochemical cell has been designed to combine electrochemistry and ultrafast two-dimensional infrared (2D-IR) spectroscopy, which is a powerful tool to extract structure and dynamics information on the femtosecond to picosecond time scale. Our design is based on a gold mirror with the dual role of performing electrochemistry and reflecting IR light. To provide the high optical surface quality required for laser spectroscopy, the gold surface is made by electron beam evaporation on a glass substrate. Electrochemical cycling facilitates in situ collection of ultrafast dynamics of redox-active molecules by means of 2D-IR. The IR beams are operated in reflection mode so that they travel twice through the sample, i.e., the signal size is doubled. This methodology is optimal for small sample volumes and successfully tested with the ferricyanide/ferrocyanide redox system of which the corresponding electrochemically induced 2D-IR difference spectrum is reported.
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Affiliation(s)
- Youssef El Khoury
- Institut für Biophysik, Johann Wolfgang Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - Luuk J G W Van Wilderen
- Institut für Biophysik, Johann Wolfgang Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - Tim Vogt
- Institut für Biophysik, Johann Wolfgang Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - Ernst Winter
- Institut für Biophysik, Johann Wolfgang Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - Jens Bredenbeck
- Institut für Biophysik, Johann Wolfgang Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
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Quinton C, Alain-Rizzo V, Dumas-Verdes C, Clavier G, Audebert P. Original electroactive and fluorescent bichromophores based on non-conjugated tetrazine and triphenylamine derivatives: towards more efficient fluorescent switches. RSC Adv 2015. [DOI: 10.1039/c5ra07253k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study allowed us to design efficient electrofluorochromic dyads based on tetrazine and triphenylamine units.
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Ding G, Zhou H, Xu J, Lu X. Electrofluorochromic detection of cyanide anions using a benzothiadiazole-containing conjugated copolymer. Chem Commun (Camb) 2014; 50:655-7. [DOI: 10.1039/c3cc47732k] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hielscher R, Yegres M, Voicescu M, Gnandt E, Friedrich T, Hellwig P. Characterization of Two Quinone Radicals in the NADH:Ubiquinone Oxidoreductase from Escherichia coli by a Combined Fluorescence Spectroscopic and Electrochemical Approach. Biochemistry 2013; 52:8993-9000. [DOI: 10.1021/bi4009903] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Ruth Hielscher
- Laboratoire
de bioelectrochimie et spectroscopie, UMR 7140, CNRS, Université de Strasbourg, 1, rue Blaise Pascal, 67070 Strasbourg, France
| | - Michelle Yegres
- Laboratoire
de bioelectrochimie et spectroscopie, UMR 7140, CNRS, Université de Strasbourg, 1, rue Blaise Pascal, 67070 Strasbourg, France
| | - Mariana Voicescu
- Laboratoire
de bioelectrochimie et spectroscopie, UMR 7140, CNRS, Université de Strasbourg, 1, rue Blaise Pascal, 67070 Strasbourg, France
| | - Emmanuel Gnandt
- Institut
für Biochemie, Albert-Ludwigs-Universität, Albertstraße 21, 79104 Freiburg, Germany
| | - Thorsten Friedrich
- Institut
für Biochemie, Albert-Ludwigs-Universität, Albertstraße 21, 79104 Freiburg, Germany
| | - Petra Hellwig
- Laboratoire
de bioelectrochimie et spectroscopie, UMR 7140, CNRS, Université de Strasbourg, 1, rue Blaise Pascal, 67070 Strasbourg, France
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Audebert P, Miomandre F. Electrofluorochromism: from molecular systems to set-up and display. Chem Sci 2013. [DOI: 10.1039/c2sc21503a] [Citation(s) in RCA: 187] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Quinton C, Alain-Rizzo V, Dumas-Verdes C, Clavier G, Miomandre F, Audebert P. Design of New Tetrazine-Triphenylamine Bichromophores - Fluorescent Switching by Chemical Oxidation. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101584] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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