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Qiao X, Vezzoli A, Smith S, Higgins SJ, Davidson RJ, Beeby A, Nichols RJ. Single-Molecule Junction Formation in Deep Eutectic Solvents with Highly Effective Gate Coupling. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:12802-12810. [PMID: 37435408 PMCID: PMC10331827 DOI: 10.1021/acs.jpcc.3c03129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/07/2023] [Indexed: 07/13/2023]
Abstract
The environment surrounding a molecular junction affects its charge-transport properties and, therefore, must be chosen with care. In the case of measurements in liquid media, the solvent must provide good solvation, grant junction stability, and, in the case of electrolyte gating experiments, allow efficient electrical coupling to the gate electrodes through control of the electrical double layer. We evaluated in this study the deep eutectic solvent mixture (DES) ethaline, which is a mixture of choline chloride and ethylene glycol (1:2), for single-molecule junction fabrication with break-junction techniques. In ethaline, we were able to (i) measure challenging and poorly soluble molecular wires, exploiting the improved solvation capabilities offered by DESs, and (ii) efficiently apply an electrostatic gate able to modulate the conductance of the junction by approximately an order of magnitude within a ∼1 V potential window. The electrochemical gating results on a Au-VDP-Au junction follow exceptionally well the single-level modeling with strong gate coupling (where VDP is 1,2-di(pyridine-4-yl)ethene). Ethaline is also an ideal solvent for the measurement of very short molecular junctions, as it grants a greatly reduced snapback distance of the metallic electrodes upon point-contact rupture. Our work demonstrates that DESs are viable alternatives to often relatively expensive ionic liquids, offering good versatility for single-molecule electrical measurements.
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Affiliation(s)
- Xiaohang Qiao
- Department
of Chemistry, University of Liverpool, Crown St, Liverpool L69 7ZD, U.K.
| | - Andrea Vezzoli
- Department
of Chemistry, University of Liverpool, Crown St, Liverpool L69 7ZD, U.K.
| | - Shaun Smith
- Department
of Chemistry, University of Liverpool, Crown St, Liverpool L69 7ZD, U.K.
| | - Simon J. Higgins
- Department
of Chemistry, University of Liverpool, Crown St, Liverpool L69 7ZD, U.K.
| | - Ross J. Davidson
- Department
of Chemistry, Durham University, South Rd, Durham DH1 3LE, U.K.
| | - Andrew Beeby
- Department
of Chemistry, Durham University, South Rd, Durham DH1 3LE, U.K.
| | - Richard J. Nichols
- Department
of Chemistry, University of Liverpool, Crown St, Liverpool L69 7ZD, U.K.
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Lee J, Suh HN, Ahn S, Park HB, Lee JY, Kim HJ, Kim SH. Disposable electrocatalytic sensor for whole blood NADH monitoring. Sci Rep 2022; 12:16716. [PMID: 36202932 PMCID: PMC9537416 DOI: 10.1038/s41598-022-20995-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 09/21/2022] [Indexed: 11/10/2022] Open
Abstract
Monitoring nicotinamide adenine dinucleotide (NADH) is important because NADH is involved in cellular redox reactions and cellular energy production. Currently, few biosensors quantify NADH in whole blood. However, they still have limitations due to several defects, including poor repeatability, long analysis time, and their requirement of extra sample pretreatment. In this study, we developed electrocatalytic sensors using screen-printed electrodes with a redox-active monolayer 4′-mercapto-N-phenylquinone diamine formed by a self-assembled monolayer of a 4-aminothiophenol (4-ATP). We exhibited their behavior as electrocatalysts toward the oxidation of NADH in whole blood. Finally, the electrocatalytic sensors maintained stability and exhibited 3.5 µM limit of detection, with 0.0076 ± 0.0006 µM/µA sensitivity in a mouse’s whole blood. As proof of concept, a polyhexamethylene guanidine phosphate–treated mouse model was used to induce inflammatory and fibrotic responses, and NADH level was measured for 45 days. This work demonstrates the potential of electrocatalytic sensors to analyze NADH in whole blood and to be developed for extensive applications.
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Zhen F, Hapiot P. Electron Transfer Kinetics in Ethaline/Water Mixtures. An apparent non‐Marcus behavior in a Deep Eutectic Solvent. ChemElectroChem 2022. [DOI: 10.1002/celc.202200351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fangchen Zhen
- Universite de Rennes 1 Institut des Sciences Chimiques de Rennes Campus de Beaulieu - Bat. 10C 35042 Rennes FRANCE
| | - Philippe Hapiot
- Universite de Rennes 1 Institute des Sciences Chimiques de Rennes Campus de BeaulieuBat 10C 35042 Rennes FRANCE
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Leote RJB, Ghica ME, Brett CMA. Pyruvate Oxidase Biosensors Based on Glassy Carbon Electrodes Modified with Carbon Nanotubes and Poly(Neutral Red) Synthesized in Ethaline Deep Eutectic Solvent. ELECTROANAL 2022. [DOI: 10.1002/elan.202100164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ricardo J. B. Leote
- University of Coimbra CEMMPRE Department of Chemistry 3004-535 Coimbra Portugal
- National Institute of Materials Physics Atomistilor Str. 405 A 077125 Magurele Romania
| | - Mariana E. Ghica
- University of Coimbra CEMMPRE Department of Chemistry 3004-535 Coimbra Portugal
- University of Coimbra CIEPQPF Department of Chemical Engineering 3030-790 Coimbra Portugal
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Zhen F, Hapiot P. Electrochemical reduction of quinones in ethaline chosen as an example of deep eutectic solvent. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Wu J, Liu S, Tan Z, Guo Y, Zhou J, Mao B, Yan J. Effect of hydrogen bond donor molecules ethylene glycerol and lactic acid on electrochemical interfaces in choline chloride based-deep eutectic solvents. J Chem Phys 2021; 155:244702. [PMID: 34972352 DOI: 10.1063/5.0073792] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Choline chloride (ChCl)-based-deep eutectic solvents (DESs) are widely used in electrochemical fields. In this work, the effect of two types of hydrogen bond donor (HBD) molecules, ethylene glycerol and lactic acid (LA), on electrochemical interfaces between the Au electrode and DESs has been investigated by employing voltammetry and electrochemical impedance spectroscopy. The anodic dissolution and passivation behaviors of the Au electrode are revealed in both ethaline and ChCl:LA. In ChCl:LA, the anodic dissolution of Au is slowed down, and the passivation film is relatively dense and stable due to the existence of the carboxyl group in HBD molecule LA. In the double layer region, the lifting and formation of Au(111) surface reconstruction and a disorder-order phase transition of the chloride ion adlayer were observed in the two DESs. Moreover, compared with ethaline, an extra pair of current peaks appears in ChCl-LA possibly due to the adsorption and desorption of LA on the Au(111) surface, which might imply the stronger interaction of LA with the Au electrode in ChCl:LA. HBD LA could even have marked an impact on the disorder-order phase transition of the chloride ion adlayer. The above results provide new insight into the significant effect of HBD molecules on the anodic dissolution and the passivation of the Au electrode and the electrochemical behaviors in the double layer region.
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Affiliation(s)
- Jiedu Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
| | - Shuai Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
| | - Zhuo Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
| | - Yuting Guo
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
| | - Jianzhang Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
| | - Bingwei Mao
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
| | - Jiawei Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
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Natural-based chiral task-specific deep eutectic solvents: A novel, effective tool for enantiodiscrimination in electroanalysis. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138189] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Jani A, Malfait B, Morineau D. On the coupling between ionic conduction and dipolar relaxation in deep eutectic solvents: Influence of hydration and glassy dynamics. J Chem Phys 2021; 154:164508. [PMID: 33940805 DOI: 10.1063/5.0050766] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have studied the ionic conductivity and the dipolar reorientational dynamics of aqueous solutions of a prototypical deep eutectic solvent (DES), ethaline, by dielectric spectroscopy in a broad range of frequencies (MHz-Hz) and for temperatures ranging from 128 to 283 K. The fraction of water in the DES was varied systematically to cover different regimes, starting from the pure DES and its water-in-DES mixtures to the diluted electrolyte solutions. Depending on these parameters, different physical states were examined, including low viscosity liquid, supercooled viscous liquid, amorphous solid, and freeze-concentrated solution. Both the ionic conductivity and the reorientational relaxation exhibited characteristic features of glassy dynamics that could be quantified from the deviation from the Arrhenius temperature dependence and non-exponential decay of the relaxation function. A transition occurred between the water-in-DES regime (<40 wt. %), where the dipolar relaxation and ionic conductivity remained inversely proportional to each other, and the DES-in-water regime (>40 wt. %), where a clear rotation-translation decoupling was observed. This suggests that for a low water content, on the timescale covered by this study (∼10-6 to 1 s), the rotational and transport properties of ethaline aqueous solutions obey classical hydrodynamic scaling despite these systems being presumably spatially microheterogeneous. A fractional scaling is observed in the DES-in-water regime due to the formation of a maximally freeze-concentrated DES aqueous solution coexisting with frozen water domains at sub-ambient temperature.
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Affiliation(s)
- Aicha Jani
- Institute of Physics of Rennes, CNRS-University of Rennes 1, UMR 6251, F-35042 Rennes, France
| | - Benjamin Malfait
- Institute of Physics of Rennes, CNRS-University of Rennes 1, UMR 6251, F-35042 Rennes, France
| | - Denis Morineau
- Institute of Physics of Rennes, CNRS-University of Rennes 1, UMR 6251, F-35042 Rennes, France
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High quality mirror finish fabrication of nickel electrodeposited using hydantoin from a mixture of choline chloride-ethylene glycol. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2020.102966] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Lenne Q, Andrieux V, Levanen G, Bergamini JF, Nicolas P, Paquin L, Lagrost C, Leroux YR. Electrochemical grafting of aryl diazonium salts in deep eutectic solvents. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137672] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tan Z, Peng Y, Liu J, Yang Y, Zhang Z, Chen Z, Mao B, Yan J. An In Situ Scanning Tunneling Microscopy Study on the Electrochemical Interface between Au(111) and Ethaline Deep Eutectic Solvent. ChemElectroChem 2020. [DOI: 10.1002/celc.202001264] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Zhuo Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China E-mail: mailto
| | - Yu Peng
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China E-mail: mailto
| | - Jingli Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China E-mail: mailto
| | - Yun Yang
- Research Institute for Biomimetics and Soft Matter Fujian Provincial Key Laboratory for Soft Functional Materials Research Institution College of Physical Science and Technology Xiamen University Xiamen 361005 China
| | - Zhisen Zhang
- Research Institute for Biomimetics and Soft Matter Fujian Provincial Key Laboratory for Soft Functional Materials Research Institution College of Physical Science and Technology Xiamen University Xiamen 361005 China
| | - Zhaobin Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China E-mail: mailto
| | - Bingwei Mao
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China E-mail: mailto
| | - Jiawei Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China E-mail: mailto
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Toniolo R, Dossi N, Giannilivigni E, Fattori A, Svigelj R, Bontempelli G, Giacomino A, Daniele S. Modified Screen Printed Electrode Suitable for Electrochemical Measurements in Gas Phase. Anal Chem 2020; 92:3689-3696. [PMID: 32008321 DOI: 10.1021/acs.analchem.9b04818] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We describe a convenient assembly for screen printed carbon electrodes (SPCE) suitable for analyses in gaseous samples which are of course lacking in supporting electrolytes. It consists of a circular crown of filter paper, soaked in a RTIL or a DES, placed upon a disposable screen printed carbon cell, so as to contact the outer edge of the carbon disk working electrode, as well as peripheral counter and reference electrodes. The electrical contact between the paper crown soaked in RTIL or DES and SPCE electrodes is assured by a gasket, and all components are installed in a polylactic acid holder. As a result of this configuration, a sensitive, fast-responding, membrane-free gas sensor is achieved where the real working electrode surface is the boundary zone of the carbon working disk contacted by the paper crown soaked in the polyelectrolyte. This assembly provides a portable and disposable electrochemical platform, assembled by the easy immobilization onto a porous and inexpensive supporting material such as paper of RTILs or DESs which are characterized by profitable electrical conductivity and negligible vapor pressure. The electroanalytical performance of this device was evaluated by voltammetric and flow injection analyses of oxygen which was chosen as prototype of electroactive gaseous analytes. The results obtained pointed out that this assembly is very profitable for the analysis of gaseous atmospheres, especially when used as detector for FIA in gaseous streams.
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Affiliation(s)
- Rosanna Toniolo
- Department of Agrifood, Environmental and Animal Sciences, University of Udine, via Cotonificio 108, I-33100 Udine, Italy
| | - Nicolò Dossi
- Department of Agrifood, Environmental and Animal Sciences, University of Udine, via Cotonificio 108, I-33100 Udine, Italy
| | - Emanuele Giannilivigni
- Department of Agrifood, Environmental and Animal Sciences, University of Udine, via Cotonificio 108, I-33100 Udine, Italy
| | - Andrea Fattori
- Department of Agrifood, Environmental and Animal Sciences, University of Udine, via Cotonificio 108, I-33100 Udine, Italy
| | - Rossella Svigelj
- Department of Agrifood, Environmental and Animal Sciences, University of Udine, via Cotonificio 108, I-33100 Udine, Italy
| | - Gino Bontempelli
- Department of Agrifood, Environmental and Animal Sciences, University of Udine, via Cotonificio 108, I-33100 Udine, Italy
| | - Agnese Giacomino
- Department of Drug Science and Technology, University of Torino, via Giuria 9, I-10125 Torino, Italy
| | - Salvatore Daniele
- Department of Molecular Science and Nanosystems, University of Ca' Foscari Venezia, via Torino 155, I-30137 Venezia-Mestre, Italy
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13
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Zhen F, Percevault L, Paquin L, Limanton E, Lagrost C, Hapiot P. Electron Transfer Kinetics in a Deep Eutectic Solvent. J Phys Chem B 2020; 124:1025-1032. [DOI: 10.1021/acs.jpcb.9b09022] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Fangchen Zhen
- Univ Rennes, CNRS, ISCR − UMR 6226, F-35000 Rennes, France
| | | | - Ludovic Paquin
- Univ Rennes, CNRS, ISCR − UMR 6226, F-35000 Rennes, France
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Usage of deep eutectic solvents for the digestion and ultrasound-assisted liquid phase microextraction of copper in liver samples. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1419-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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