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Gu C, Nie X, Zhang X, Dong Y, Zhang X, Gu Y, Shao Y. Influence of supporting electrolytes on the electron transfer and ion transfer coupling processes at a liquid/liquid interface. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.09.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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2
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Heterogeneous versus homogeneous electron transfer reactions at liquid–liquid interfaces: The wrong question? J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.02.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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3
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WATARIGUCHI S, FUJIMORI M, ATSUMI K, HINOUE T. Evidences of Electron Transfer of a Fullerene Anion Radical (C 60•−) Prepared under Visible-Light Illumination at a Nitrobenzene/Water Interface. ANAL SCI 2016; 32:463-8. [DOI: 10.2116/analsci.32.463] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Shigeru WATARIGUCHI
- Interdisciplinary Graduate School of Science and Technology, Shinshu University
| | | | - Kosuke ATSUMI
- Department of Chemistry, Faculty of Science, Shinshu University
| | - Teruo HINOUE
- Department of Chemistry, Faculty of Science, Shinshu University
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4
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Toth PS, Dryfe RAW. Novel organic solvents for electrochemistry at the liquid/liquid interface. Analyst 2015; 140:1947-54. [DOI: 10.1039/c4an02250e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The 5-nonanone organic phase has been shown to be a stable solvent for use in electrochemistry, ion and electron transfer has been studied at the organic/water interface.
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Affiliation(s)
- Peter S. Toth
- School of Chemistry
- University of Manchester
- Manchester
- UK
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5
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Phospholipids at the interface: current trends and challenges. Int J Mol Sci 2013; 14:11767-94. [PMID: 23736688 PMCID: PMC3709755 DOI: 10.3390/ijms140611767] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 05/03/2013] [Accepted: 05/28/2013] [Indexed: 11/30/2022] Open
Abstract
Phospholipids are one of the major structural elements of biological membranes. Due to their amphiphilic character, they can adopt various molecular assemblies when dispersed in water, such as bilayer vesicles or micelles, which give them unique interfacial properties and render them very attractive in terms of foam or emulsion stabilization. This article aims at reviewing the properties of phospholipids at the air/water and oil/water interfaces, as well as the recent advances in using these natural components as stabilizers, alone or in combination with other compounds such as proteins. A discussion regarding the challenges and opportunities offered by phospholipids-stabilized structure concludes the review.
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Lovrić M, Komorsky-Lovrić Š, Compton RG. Electrodes covered with random arrays of microdroplets: heterogeneous electron transfer coupled to catalytic reaction at the liquid/liquid interface in the prism film geometry approximation. Electrochim Acta 2005. [DOI: 10.1016/j.electacta.2004.08.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Evans-Kennedy U, Clohessy J, Cunnane VJ. Spectroelectrochemical Study of 2,2‘:5‘,2‘ ‘-Terthiophene Polymerization at a Liquid/Liquid Interface Controlled by Potential-Determining Ions. Macromolecules 2004. [DOI: 10.1021/ma0348223] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Una Evans-Kennedy
- Materials and Surface Science Institute, University of Limerick, Limerick, Ireland
| | - Jason Clohessy
- Materials and Surface Science Institute, University of Limerick, Limerick, Ireland
| | - Vincent J. Cunnane
- Materials and Surface Science Institute, University of Limerick, Limerick, Ireland
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9
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Voltammetric study of electron transfer across the 1,6-dichlorohexane|water interface with the bis(pentamethylcyclopentadienyl)iron(II/III) redox couple. J Electroanal Chem (Lausanne) 2004. [DOI: 10.1016/j.jelechem.2003.09.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Osakai T, Ichikawa S, Hotta H, Nagatani H. A True Electron-Transfer Reaction between 5,10,15,20-Tetraphenylporphyrinato Cadmium(II) and the Hexacyanoferrate Couple at the Nitrobenzene/Water Interface. ANAL SCI 2004; 20:1567-73. [PMID: 15566151 DOI: 10.2116/analsci.20.1567] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The ability of some metal complexes of 5,10,15,20-tetraphenylporphyrin (TPP) to give a voltammetric wave due to the heterogeneous electron transfer (ET) at a nitrobenzene (NB)/water (W) interface has been examined. The previously-proposed, electron-conductor separating oil-water (ECSOW) system has been successfully employed to find that the TPP complex with cadmium(II) added to NB gives a well-defined, reversible wave for the heterogeneous (i.e., "true") ET with the hexacyanoferrate couple in W. A digital simulation analysis has entirely excluded the possibility of the ion-transfer mechanism due to the homogeneous ET in W. The a.c. impedance method has then been used to determine the kinetic parameters including the standard rate constant k0 (= 0.10 cm M(-1) s(-1)) and the transfer coefficient alpha (= 0.53 at the half-wave potential). These values are in good agreement with those predicted from the Marcus theory with the assumption that the heterogeneous ET due to molecular collision occurs at the "sharp" NB/W interface.
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Affiliation(s)
- Toshiyuki Osakai
- Department of Chemistry, Faculty of Science, Kobe University, Nada, Kobe 657-8501, Japan.
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Chen Y, Gao Z, Li F, Ge L, Zhang M, Zhan D, Shao Y. Studies of Electron-Transfer and Charge-Transfer Coupling Processes at a Liquid/Liquid Interface by Double-Barrel Micropipet Technique. Anal Chem 2003; 75:6593-601. [PMID: 16465713 DOI: 10.1021/ac034674e] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Investigation of a heterogeneous electron-transfer (ET) reaction at the water/1,2-dichloroethane interface employing a double-barrel micropipet technique is reported. The chosen system was the reaction between Fe(CN)63- in the aqueous phase (W) and ferrocene in 1,2-dichloroethane (DCE). According to the generation and the collection currents as well as collection efficiency, the ET-ion-transfer (IT) coupling process at such an interface and competing reactions with the organic supporting electrolyte in the organic phase can be studied. In addition, this technique has been found to be an efficient method to distinguish and measure the charge-transfer coupling reaction between two ions (IT-IT) processes occurring simultaneously at a liquid/liquid interface. On this basis, the formal Gibbs energies of transfer of some ions across the W/DCE interface, such as NO3-, NO2-, Cl-, COO-, TBA+, TPAs+, Cs+, Rb+, K+, Na+, and Li+, for which their direct transfers are usually difficult to obtain because of the IT-IT coupling processes, were quantitatively evaluated.
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Affiliation(s)
- Yong Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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Hotta H, Ichikawa S, Sugihara T, Osakai T. Clarification of the Mechanism of Interfacial Electron-Transfer Reaction between Ferrocene and Hexacyanoferrate(III) by Digital Simulation of Cyclic Voltammograms. J Phys Chem B 2003. [DOI: 10.1021/jp035058p] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hiroki Hotta
- Department of Chemistry, Faculty of Science, Kobe University, Nada, Kobe 657-8501, Japan
| | - Seiko Ichikawa
- Department of Chemistry, Faculty of Science, Kobe University, Nada, Kobe 657-8501, Japan
| | - Takayasu Sugihara
- Department of Chemistry, Faculty of Science, Kobe University, Nada, Kobe 657-8501, Japan
| | - Toshiyuki Osakai
- Department of Chemistry, Faculty of Science, Kobe University, Nada, Kobe 657-8501, Japan
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Zhang Z, Sun P, Gao Z, Shao Y. Investigation of electron transfer across the ice/liquid interface by scanning electrochemical microscopy. CHINESE SCIENCE BULLETIN-CHINESE 2003. [DOI: 10.1007/bf03183331] [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]
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14
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Fantini S, Clohessy J, Gorgy K, Fusalba F, Johans C, Kontturi K, Cunnane VJ. Influence of the presence of a gel in the water phase on the electrochemical transfer of ionic forms of beta-blockers across a large water 1,2-dichloroethane interface. Eur J Pharm Sci 2003; 18:251-7. [PMID: 12659936 DOI: 10.1016/s0928-0987(03)00018-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The transfer of ionic species of three beta-blockers (propranolol, sotalol and timolol) has been studied by cyclic voltammetry at a macroscopic water 1,2-dichloroethane (1,2-DCE) interface. The aqueous solution has been gellified in order to study the effect of the gel on the transport properties of the drugs. The gelling agent also stabilizes the interface overcoming mechanical instability. The standard potential and standard Gibbs energy of transfer across the interface, the partition coefficient and the diffusion coefficient of each drug were determined in the presence of a gelled interface. The diffusion coefficients were shifted relative to those obtained at normal water 1,2-DCE interfaces (free of gel).
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Affiliation(s)
- Sebastien Fantini
- Materials Surface Sciences Institute, Department of Chemical and Environmental Sciences, University of Limerick, Limerick, Ireland
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15
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Zhang Z, Yuan Y, Sun P, Su B, Guo J, Shao Y, Girault HH. Study of Electron-Transfer Reactions across an Externally Polarized Water/1,2-Dichloroethane Interface by Scanning Electrochemical Microscopy. J Phys Chem B 2002. [DOI: 10.1021/jp0144092] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhiquan Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Yi Yuan
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Peng Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Bin Su
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Jidong Guo
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Yuanhua Shao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Hubert H. Girault
- Laboratoire d'Electrochimie, Ecole Polytechnique Fédérale de Lausanne, 1015-Ecublens, Switzerland
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Liu B, Mirkin MV. Electron Transfer at Liquid/Liquid Interfaces. The Effects of Ionic Adsorption, Electrolyte Concentration, and Spacer Length on the Reaction Rate. J Phys Chem B 2002. [DOI: 10.1021/jp013543j] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Biao Liu
- Department of Chemistry and Biochemistry, Queens CollegeCUNY, Flushing, New York 11367
| | - Michael V. Mirkin
- Department of Chemistry and Biochemistry, Queens CollegeCUNY, Flushing, New York 11367
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Electrochemical characterization of the ultrathin polypeptide film/1,2-dichloroethane liquid∣liquid interface. J Electroanal Chem (Lausanne) 2000. [DOI: 10.1016/s0022-0728(00)00043-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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