101
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Electrochemical Investigation of Nitinol/Tantalum Hybrid Surfaces Modified by Alkylphosphonic Self-Assembled Monolayers. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.11.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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102
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Alemu G, Cui J, Cao K, Li J, Shen Y, Wang M. Investigation of the regeneration kinetics of organic dyes with pyridine ring anchoring groups by scanning electrochemical microscopy. RSC Adv 2014. [DOI: 10.1039/c4ra07908f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The regeneration dynamics can be understood with the help of scanning electrochemical microscopy, showing that anchoring group significantly affects the effective rate constant.
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Affiliation(s)
- Getachew Alemu
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan 430074, P. R. China
| | | | - Kun Cao
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan 430074, P. R. China
| | - Junpeng Li
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan 430074, P. R. China
| | - Yan Shen
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan 430074, P. R. China
| | - Mingkui Wang
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan 430074, P. R. China
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103
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Lesch A, Chen PC, Roelfs F, Dosche C, Momotenko D, Cortés-Salazar F, Girault HH, Wittstock G. Finger Probe Array for Topography-Tolerant Scanning Electrochemical Microscopy of Extended Samples. Anal Chem 2013; 86:713-20. [DOI: 10.1021/ac403168p] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Andreas Lesch
- Carl von Ossietzky University of Oldenburg, School of Mathematics
and Natural Sciences, Center of Interface Science, Department
of Chemistry, D-26111 Oldenburg, Germany
- Ecole Polytechnique Fédérale de Lausanne, Laboratoire
d’Electrochimie Physique et Analytique, Station 6, CH-1015 Lausanne, Switzerland
| | - Po-Chung Chen
- Carl von Ossietzky University of Oldenburg, School of Mathematics
and Natural Sciences, Center of Interface Science, Department
of Chemistry, D-26111 Oldenburg, Germany
| | - Folkert Roelfs
- Carl von Ossietzky University of Oldenburg, School of Mathematics
and Natural Sciences, Center of Interface Science, Department
of Chemistry, D-26111 Oldenburg, Germany
| | - Carsten Dosche
- Carl von Ossietzky University of Oldenburg, School of Mathematics
and Natural Sciences, Center of Interface Science, Department
of Chemistry, D-26111 Oldenburg, Germany
| | - Dmitry Momotenko
- Ecole Polytechnique Fédérale de Lausanne, Laboratoire
d’Electrochimie Physique et Analytique, Station 6, CH-1015 Lausanne, Switzerland
| | - Fernando Cortés-Salazar
- Ecole Polytechnique Fédérale de Lausanne, Laboratoire
d’Electrochimie Physique et Analytique, Station 6, CH-1015 Lausanne, Switzerland
| | - Hubert H. Girault
- Ecole Polytechnique Fédérale de Lausanne, Laboratoire
d’Electrochimie Physique et Analytique, Station 6, CH-1015 Lausanne, Switzerland
| | - Gunther Wittstock
- Carl von Ossietzky University of Oldenburg, School of Mathematics
and Natural Sciences, Center of Interface Science, Department
of Chemistry, D-26111 Oldenburg, Germany
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104
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High-throughput scanning electrochemical microscopy brushing of strongly tilted and curved surfaces. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.03.101] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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105
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Etienne M, Moulin JP, Gourhand S. Accurate control of the electrode shape for high resolution shearforce regulated SECM. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.03.096] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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106
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Moreira R, Schütz MK, Libert M, Tribollet B, Vivier V. Influence of hydrogen-oxidizing bacteria on the corrosion of low carbon steel: Local electrochemical investigations. Bioelectrochemistry 2013; 97:69-75. [PMID: 24177135 DOI: 10.1016/j.bioelechem.2013.10.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 06/14/2013] [Accepted: 10/04/2013] [Indexed: 11/28/2022]
Abstract
Low carbon steel has been considered a suitable material for component of the multi-barrier system employed on the geological disposal of high-level radioactive waste (HLW). A non negligible amount of dihydrogen (H2) is expected to be produced over the years within the geological repository due to the anoxic corrosion of metallic materials and also to the water radiolysis. The influence of the activity of hydrogen-oxidizing bacteria (HOB) and iron-reducing bacteria (IRB) on carbon steel corrosion is considered in this study because of the high availability of energetic nutriments (H2, iron oxides and hydroxides) produced in anoxic disposal conditions. Local electrochemical techniques were used for investigating the activity of IRB as a promoter of local corrosion in the presence of H2 as electron donor. A local consumption of H2 by the bacteria has been evidenced and impedance measurements indicate the formation of a thick layer of corrosion products.
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Affiliation(s)
- Rebeca Moreira
- CNRS, UPR15, Laboratoire Interfaces et Systèmes Electrochimiques, F-75005 Paris, France; UPMC Univ Paris 06, UPR15, LISE, 4 place Jussieu, F-75005 Paris, France
| | - Marta K Schütz
- CEA/DEN/DTN/SMTM/LMTE, 13108 Saint Paul lez Durance, France
| | - Marie Libert
- CEA/DEN/DTN/SMTM/LMTE, 13108 Saint Paul lez Durance, France
| | - Bernard Tribollet
- CNRS, UPR15, Laboratoire Interfaces et Systèmes Electrochimiques, F-75005 Paris, France; UPMC Univ Paris 06, UPR15, LISE, 4 place Jussieu, F-75005 Paris, France
| | - Vincent Vivier
- CNRS, UPR15, Laboratoire Interfaces et Systèmes Electrochimiques, F-75005 Paris, France; UPMC Univ Paris 06, UPR15, LISE, 4 place Jussieu, F-75005 Paris, France.
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107
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Yin YH, Niu L, Cao XL. Study on Electrocatalytic Activity of Platinum for Hydrogen Oxidation in Acidic Solution by Scanning Electrochemical Microscopy. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200900158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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108
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Hill AN, Delaney KM, Sullivan TR, Mylod G, Kiesow KH, Bowyer WJ. Heterogeneous Rate Constants for Indium Mediated Allylations: Cinnamyl Chloride in Ethanol/Water Mixtures. J Phys Chem A 2013; 117:8826-35. [DOI: 10.1021/jp404027p] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexa N. Hill
- Department
of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Katherine M. Delaney
- Department
of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Tessa R. Sullivan
- Department
of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Gabriella Mylod
- Department
of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Katrina H. Kiesow
- Department
of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Walter J. Bowyer
- Department
of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
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109
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Lee SW, Lopez J, Saraf RF. Direct mapping of local redox current density on a monolith electrode by laser scanning. Biosens Bioelectron 2013; 47:408-14. [DOI: 10.1016/j.bios.2013.02.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 02/18/2013] [Accepted: 02/28/2013] [Indexed: 11/26/2022]
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110
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Rock RM, Sides PJ, Prieve DC. Ensemble average TIRM for imaging amperometry. J Colloid Interface Sci 2013; 403:142-50. [DOI: 10.1016/j.jcis.2013.04.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Revised: 04/05/2013] [Accepted: 04/07/2013] [Indexed: 10/26/2022]
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111
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Meyer JN, Mathew MT, Wimmer MA, LeSuer RJ. Effect of tribolayer formation on corrosion of CoCrMo alloys investigated using scanning electrochemical microscopy. Anal Chem 2013; 85:7159-66. [PMID: 23848566 DOI: 10.1021/ac400823q] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Scanning electrochemical microscopy was used to probe the topography and electrochemical activity of CoCrMo alloys mechanically polished in the presence of bovine calf serum (BCS) in a hip simulator. These substrates are made of the same alloy used in metal-on-metal bearings for artificial hip joints. The BCS serves as an in vitro substitute for the synovial fluid which forms a lubricant in the actual orthopedic device. Chemical and mechanical processes result in the formation of a tribolayer which passivates the alloy surface. Our studies of the heterogeneous electron transfer between ferrocenemethanol and the alloy indicate that the tribolayer formed on both high- and low-carbon substrates is highly heterogeneous with regions of high electrochemical activity. Whereas pits in the samples polished in the absence of BCS show the regions of highest electrochemical activity, the tribolayer-coated samples have electrochemical hot spots in topographically smooth regions of the surface. The tribolayer provides some attenuation of the electrochemical activity of the alloy but does not prevent the possibility of corrosion from occurring.
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Affiliation(s)
- Joshua N Meyer
- Department of Chemistry and Physics, Chicago State University, Chicago, Illinois 60628, United States
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112
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Han OH. Nuclear magnetic resonance investigations on electrochemical reactions of low temperature fuel cells operating in acidic conditions. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2013; 72:1-41. [PMID: 23731860 DOI: 10.1016/j.pnmrs.2013.01.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Accepted: 01/10/2013] [Indexed: 06/02/2023]
Affiliation(s)
- Oc Hee Han
- Daegu Center, Korea Basic Science Institute, Daegu 702-701, Republic of Korea.
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113
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Huang K, Anne A, Bahri MA, Demaille C. Probing individual redox PEGylated gold nanoparticles by electrochemical--atomic force microscopy. ACS NANO 2013; 7:4151-4163. [PMID: 23560497 DOI: 10.1021/nn400527u] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Electrochemical-atomic force microscopy (AFM-SECM) was used to simultaneously probe the physical and electrochemical properties of individual ~20 nm sized gold nanoparticles functionalized by redox-labeled PEG chains. The redox PEGylated nanoparticles were assembled onto a gold electrode surface, forming a random nanoarray, and interrogated in situ by a combined AFM-SECM nanoelectrode probe. We show that, in this so-called mediator-tethered (Mt) mode, AFM-SECM affords the nanometer resolution required for resolving the position of individual nanoparticles and measuring their size, while simultaneously electrochemically directly contacting the redox-PEG chains they bear. The dual measurement of the size and current response of single nanoparticles uniquely allows the statistical distribution in grafting density of PEG on the nanoparticles to be determined and correlated to the nanoparticle diameter. Moreover, because of its high spatial resolution, Mt/AFM-SECM allows "visualizing" simultaneously but independently the PEG corona and the gold core of individual nanoparticles. Beyond demonstrating the achievement of single-nanoparticle resolution using an electrochemical microscopy technique, the results reported here also pave the way toward using Mt/AFM-SECM for imaging nano-objects bearing any kind of suitably redox-labeled (bio)macromolecules.
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Affiliation(s)
- Kai Huang
- Laboratoire d'Electrochimie Moléculaire, UMR 7591 CNRS, Université Paris Diderot, Sorbonne Paris Cité, 15 Rue Jean-Antoine de Baïf, F-75205 Paris Cedex 13, France
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114
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Liu Y, Wolfrum B, Hüske M, Offenhäusser A, Wang E, Mayer D. Ein elektrochemischer Gleichrichter ermöglicht Transistorfunktionen. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201207778] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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115
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Liu Y, Wolfrum B, Hüske M, Offenhäusser A, Wang E, Mayer D. Transistor Functions Based on Electrochemical Rectification. Angew Chem Int Ed Engl 2013; 52:4029-32. [DOI: 10.1002/anie.201207778] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 12/04/2012] [Indexed: 11/08/2022]
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116
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Aaronson BDB, Chen CH, Li H, Koper MTM, Lai SCS, Unwin PR. Pseudo-single-crystal electrochemistry on polycrystalline electrodes: visualizing activity at grains and grain boundaries on platinum for the Fe2+/Fe3+ redox reaction. J Am Chem Soc 2013; 135:3873-80. [PMID: 23405963 DOI: 10.1021/ja310632k] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The influence of electrode surface structure on electrochemical reaction rates and mechanisms is a major theme in electrochemical research, especially as electrodes with inherent structural heterogeneities are used ubiquitously. Yet, probing local electrochemistry and surface structure at complex surfaces is challenging. In this paper, high spatial resolution scanning electrochemical cell microscopy (SECCM) complemented with electron backscatter diffraction (EBSD) is demonstrated as a means of performing 'pseudo-single-crystal' electrochemical measurements at individual grains of a polycrystalline platinum electrode, while also allowing grain boundaries to be probed. Using the Fe(2+/3+) couple as an illustrative case, a strong correlation is found between local surface structure and electrochemical activity. Variations in electrochemical activity for individual high index grains, visualized in a weakly adsorbing perchlorate medium, show that there is higher activity on grains with a significant (101) orientation contribution, compared to those with (001) and (111) contribution, consistent with findings on single-crystal electrodes. Interestingly, for Fe(2+) oxidation in a sulfate medium a different pattern of activity emerges. Here, SECCM reveals only minor variations in activity between individual grains, again consistent with single-crystal studies, with a greatly enhanced activity at grain boundaries. This suggests that these sites may contribute significantly to the overall electrochemical behavior measured on the macroscale.
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Affiliation(s)
- Barak D B Aaronson
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
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117
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Local control of protein binding and cell adhesion by patterned organic thin films. Anal Bioanal Chem 2013; 405:3673-91. [DOI: 10.1007/s00216-013-6748-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 01/08/2013] [Accepted: 01/14/2013] [Indexed: 12/18/2022]
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118
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Zhang Q, Deng X, Qian PZG, Wang X. Spatial modeling for refining and predicting surface potential mapping with enhanced resolution. NANOSCALE 2013; 5:921-926. [PMID: 23299834 DOI: 10.1039/c2nr33603k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Quantitatively mapping surface properties with nanometer or even subnanometer resolutions is critical for advanced scanning probe microscopy (SPM) characterization. However, the characterization performance often suffers from noises and artifacts due to instrumentation or environmental limitations. In this paper, we proposed a novel statistical approach with bivariate spatial modeling to efficiently refine and predict surface property mapping. Scanning Kelvin probe microscopy (SKPM) was selected as a representative example to test our proposed method on lateral nanowire assemblies. We revealed that the proposed method can effectively retrieve the artifact-free surface potential distribution by automatically identifying topological artifacts from surface potential maps. Furthermore, the statistical model built upon low spatial resolution was successfully used to predict the potential values from higher-resolution topography data. Compared to conventional regression model, our model is able to predict the surface potential distribution from less raw data but yields much higher accuracy. Through this means, the spatial resolution of SKPM surface potential maps can be significantly improved. This statistics-enabled predictive method opens a new route toward high-precision and high-resolution SPM characterizations without the enhancement of instrumentation capabilities.
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Affiliation(s)
- Qiong Zhang
- Department of Statistics, University of Wisconsin-Madison, USA
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119
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Munteanu S, Garraud N, Roger JP, Amiot F, Shi J, Chen Y, Combellas C, Kanoufi F. In Situ, Real Time Monitoring of Surface Transformation: Ellipsometric Microscopy Imaging of Electrografting at Microstructured Gold Surfaces. Anal Chem 2013; 85:1965-71. [DOI: 10.1021/ac3034085] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sorin Munteanu
- CNRS UMR 7195, ESPCI ParisTech,
10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Nicolas Garraud
- Institut Langevin, CNRS UMR
7587, ESPCI ParisTech, 1 rue Jussieu, 75238 Paris Cedex 05, France
| | - Jean Paul Roger
- Institut Langevin, CNRS UMR
7587, ESPCI ParisTech, 1 rue Jussieu, 75238 Paris Cedex 05, France
| | - Fabien Amiot
- FEMTO-ST Institute, CNRS-UMR 6174/UFC/ENSMM/UTBM,
24 chemin de l’Épitaphe, 25030 Besançon, France
| | - Jian Shi
- CNRS UMR Pasteur 8640, Ecole
Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, France
| | - Yong Chen
- CNRS UMR Pasteur 8640, Ecole
Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, France
| | - Catherine Combellas
- CNRS UMR 7195, ESPCI ParisTech,
10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Frédéric Kanoufi
- CNRS UMR 7195, ESPCI ParisTech,
10 rue Vauquelin, 75231 Paris Cedex 05, France
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120
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Han L, Yuan Y, Zhang J, Zhao X, Cao Y, Hu Z, Yan Y, Dong S, Tian ZQ, Tian ZW, Zhan D. A Leveling Method Based on Current Feedback Mode of Scanning Electrochemical Microscopy. Anal Chem 2013; 85:1322-6. [DOI: 10.1021/ac303122v] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lianhuan Han
- College of Chemistry and Chemical
Engineering, and State Key Laboratory for Physical Chemistry of Solid
Surfaces, Xiamen University, Xiamen 361005,
China
| | - Ye Yuan
- College of Chemistry and Chemical
Engineering, and State Key Laboratory for Physical Chemistry of Solid
Surfaces, Xiamen University, Xiamen 361005,
China
| | - Jie Zhang
- College of Chemistry and Chemical
Engineering, and State Key Laboratory for Physical Chemistry of Solid
Surfaces, Xiamen University, Xiamen 361005,
China
| | - Xuesen Zhao
- Center for Precision
Engineering, Harbin Institute of Technology, P.O. Box 413, Harbin
150001, China
| | - Yongzhi Cao
- Center for Precision
Engineering, Harbin Institute of Technology, P.O. Box 413, Harbin
150001, China
| | - Zhenjiang Hu
- Center for Precision
Engineering, Harbin Institute of Technology, P.O. Box 413, Harbin
150001, China
| | - Yongda Yan
- Center for Precision
Engineering, Harbin Institute of Technology, P.O. Box 413, Harbin
150001, China
| | - Shen Dong
- Center for Precision
Engineering, Harbin Institute of Technology, P.O. Box 413, Harbin
150001, China
| | - Zhong-Qun Tian
- College of Chemistry and Chemical
Engineering, and State Key Laboratory for Physical Chemistry of Solid
Surfaces, Xiamen University, Xiamen 361005,
China
| | - Zhao-Wu Tian
- College of Chemistry and Chemical
Engineering, and State Key Laboratory for Physical Chemistry of Solid
Surfaces, Xiamen University, Xiamen 361005,
China
| | - Dongping, Zhan
- College of Chemistry and Chemical
Engineering, and State Key Laboratory for Physical Chemistry of Solid
Surfaces, Xiamen University, Xiamen 361005,
China
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121
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Tefashe UM, Wittstock G. Quantitative characterization of shear force regulation for scanning electrochemical microscopy. CR CHIM 2013. [DOI: 10.1016/j.crci.2012.03.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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122
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Cougnon C, Boisard S, Cador O, Dias M, Levillain E, Breton T. A facile route to steady redox-modulated nitroxide spin-labeled surfaces based on diazonium chemistry. Chem Commun (Camb) 2013; 49:4555-7. [DOI: 10.1039/c3cc40768c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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123
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Ebejer N, Güell AG, Lai SCS, McKelvey K, Snowden ME, Unwin PR. Scanning electrochemical cell microscopy: a versatile technique for nanoscale electrochemistry and functional imaging. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2013; 6:329-51. [PMID: 23560932 DOI: 10.1146/annurev-anchem-062012-092650] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Scanning electrochemical cell microscopy (SECCM) is a new pipette-based imaging technique purposely designed to allow simultaneous electrochemical, conductance, and topographical visualization of surfaces and interfaces. SECCM uses a tiny meniscus or droplet, at the end of a double-barreled (theta) pipette, for high-resolution functional imaging and nanoscale electrochemical measurements. Here we introduce this technique and provide an overview of its principles, instrumentation, and theory. We discuss the power of SECCM in resolving complex structure-activity problems and provide considerable new information on electrode processes by referring to key example systems, including graphene, graphite, carbon nanotubes, nanoparticles, and conducting diamond. The many longstanding questions that SECCM has been able to answer during its short existence demonstrate its potential to become a major technique in electrochemistry and interfacial science.
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Affiliation(s)
- Neil Ebejer
- Department of Chemistry, University ofWarwick, Coventry CV4 7AL, United Kingdom
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124
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Etienne M, Lhenry S, Cornut R, Lefrou C. Optimization of the shearforce signal for scanning electrochemical microscopy and application for kinetic analysis. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.09.063] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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125
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Wang Y, Kececi K, Velmurugan J, Mirkin MV. Electron transfer/ion transfer mode of scanning electrochemical microscopy (SECM): a new tool for imaging and kinetic studies. Chem Sci 2013. [DOI: 10.1039/c3sc50825k] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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126
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Scanning electrochemical microscopy for the fabrication of copper nanowires: Atomic contacts with quantized conductance, and molecular adsorption effect. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.07.115] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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127
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Munteanu S, Gam-Derouich S, Flammier C, Fedala Y, Combellas C, Amiot F, Kanoufi F. Scanning electrochemical microscopy monitoring in microcantilever platforms. Anal Chem 2012; 84:7449-55. [PMID: 22876782 DOI: 10.1021/ac301502a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The deflection of cantilever systems may be performed by an indirect electrochemical method that consists of measuring the local cantilever activity and deflection in a feedback generation-collection configuration of the SECM. This is illustrated during the electrochemically assisted adsorption of Br onto a gold-coated cantilever, either in its pristine state or previously coated with a thin organic barrier. It is further extended to the adsorption of an antibody in a heterogeneous immunoassay at an allergen-coated microcantilever platform. In both reactions, the cantilever deflection is qualitatively detected from the SECM tip current measurement and a quantitative estimate is obtained through modeling. This electroanalytical strategy provides an alternative approach to standard optical detection. It can overcome some limitations of the optical method by allowing electrochemical characterization of nonconductive cantilevers and appropriate use for closed systems.
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Affiliation(s)
- Sorin Munteanu
- PECSA CNRS-UMR 7195, ESPCI ParisTech, Paris cedex 05, France
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128
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Prussian Blue-modified ultramicroelectrodes for mapping hydrogen peroxide in scanning electrochemical microscopy (SECM). Electrochem commun 2012. [DOI: 10.1016/j.elecom.2012.07.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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129
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Lhenry S, Leroux YR, Hapiot P. Use of Catechol As Selective Redox Mediator in Scanning Electrochemical Microscopy Investigations. Anal Chem 2012; 84:7518-24. [DOI: 10.1021/ac301634s] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Sebastien Lhenry
- Institut
des Sciences Chimiques de Rennes, Université de Rennes 1, CNRS, UMR 6226 (Equipe
MaCSE), Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Yann R. Leroux
- Institut
des Sciences Chimiques de Rennes, Université de Rennes 1, CNRS, UMR 6226 (Equipe
MaCSE), Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Philippe Hapiot
- Institut
des Sciences Chimiques de Rennes, Université de Rennes 1, CNRS, UMR 6226 (Equipe
MaCSE), Campus de Beaulieu, 35042 Rennes Cedex, France
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130
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Patten HV, Lai SCS, Macpherson JV, Unwin PR. Active sites for outer-sphere, inner-sphere, and complex multistage electrochemical reactions at polycrystalline boron-doped diamond electrodes (pBDD) revealed with scanning electrochemical cell microscopy (SECCM). Anal Chem 2012; 84:5427-32. [PMID: 22607491 DOI: 10.1021/ac3010555] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The local rate of heterogeneous electron transfer (HET) at polycrystalline boron-doped diamond (pBDD) electrodes has been visualized at high spatial resolution for various aqueous electrochemical reactions, using scanning electrochemical cell microscopy (SECCM), which is a technique that uses a mobile pipet-based electrochemical cell as an imaging probe. As exemplar systems, three important classes of electrode reactions have been investigated: outer-sphere (one-electron oxidation of ferrocenylmethyltrimethylammonium (FcTMA(+))), inner-sphere (one-electron oxidation of Fe(2+)), and complex processes with coupled electron transfer and chemical reactions (oxidation of serotonin). In all cases, the pattern of reactivity is similar: the entire pBDD surface is electroactive, but there are variations in activity between different crystal facets which correlate directly with differences in the local dopant level, as visualized qualitatively by field-emission scanning electron microscopy (FE-SEM). No evidence was found for enhanced activity at grain boundaries for any of the reactions. The case of serotonin oxidation is particularly interesting, as this process is known to lead to deterioration of the electrodes, because of blocking by reaction products, and therefore cannot be studied with conventional scanning electrochemical probe microscopy (SEPM) techniques. Yet, we have found this system nonproblematic to study, because the meniscus of the scanning pipet is only in contact with the surface investigated for a brief time and any blocking product is left behind as the pipet moves to a new location. Thus, SECCM opens up the possibility of investigating and visualizing much more complex heterogeneous electrode reactions than possible presently with other SEPM techniques.
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Affiliation(s)
- Hollie V Patten
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
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131
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Leroux YR, Hui F, Ruiz J, Astruc D, Hapiot P. Robust Assembly of Dendrimers as an Active Redox-Sensing Monolayer: An Example of Oxo-Anion Sensing. Chemistry 2012; 18:7041-4. [DOI: 10.1002/chem.201200172] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Indexed: 11/09/2022]
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132
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Martin BT, Chingas GC, McDougal OM. Origin and correction of magnetic field inhomogeneity at the interface in biphasic NMR samples. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2012; 218:147-152. [PMID: 22459062 PMCID: PMC3351538 DOI: 10.1016/j.jmr.2012.02.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 02/19/2012] [Accepted: 02/20/2012] [Indexed: 05/31/2023]
Abstract
The use of susceptibility matching to minimize spectral distortion of biphasic samples layered in a standard 5 mm NMR tube is described. The approach uses magic angle spinning (MAS) to first extract chemical shift differences by suppressing bulk magnetization. Then, using biphasic coaxial samples, magnetic susceptibilities are matched by titration with a paramagnetic salt. The matched phases are then layered in a standard NMR tube where they can be shimmed and examined. Linewidths of two distinct spectral lines, selected to characterize homogeneity in each phase, are simultaneously optimized. Two-dimensional distortion-free, slice-resolved spectra of an octanol/water system illustrate the method. These data are obtained using a 2D stepped-gradient pulse sequence devised for this application. Advantages of this sequence over slice-selective methods are that acquisition efficiency is increased and processing requires only conventional software.
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133
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Nunige S, Cornut R, Hazimeh H, Hauquier F, Lefrou C, Combellas C, Kanoufi F. Reactivity of Surfaces Determined by Local Electrochemical Triggering: A Bromo-Terminated Self-Assembled Monolayer. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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134
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Nunige S, Cornut R, Hazimeh H, Hauquier F, Lefrou C, Combellas C, Kanoufi F. Reactivity of Surfaces Determined by Local Electrochemical Triggering: A Bromo-Terminated Self-Assembled Monolayer. Angew Chem Int Ed Engl 2012; 51:5208-12. [DOI: 10.1002/anie.201201083] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Indexed: 11/06/2022]
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135
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Lesch A, Momotenko D, Cortés-Salazar F, Wirth I, Tefashe UM, Meiners F, Vaske B, Girault HH, Wittstock G. Fabrication of soft gold microelectrode arrays as probes for scanning electrochemical microscopy. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2011.12.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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136
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Etienne M, Layoussifi B, Giornelli T, Jacquet D. SECM-based automate equipped with a shearforce detection for the characterization of large and complex samples. Electrochem commun 2012. [DOI: 10.1016/j.elecom.2011.11.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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137
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Noël JM, Latus A, Lagrost C, Volanschi E, Hapiot P. Evidence for OH Radical Production during Electrocatalysis of Oxygen Reduction on Pt Surfaces: Consequences and Application. J Am Chem Soc 2012; 134:2835-41. [DOI: 10.1021/ja211663t] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jean-Marc Noël
- Sciences Chimiques de Rennes,
UMR CNRS 6226, Université de Rennes 1, Equipe MaCSE, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Alina Latus
- Department of Physical Chemistry, University of Bucharest, Boulevard Elisabeta 4-12,
Bucharest 030018, Romania
| | - Corinne Lagrost
- Sciences Chimiques de Rennes,
UMR CNRS 6226, Université de Rennes 1, Equipe MaCSE, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Elena Volanschi
- Department of Physical Chemistry, University of Bucharest, Boulevard Elisabeta 4-12,
Bucharest 030018, Romania
| | - Philippe Hapiot
- Sciences Chimiques de Rennes,
UMR CNRS 6226, Université de Rennes 1, Equipe MaCSE, Campus de Beaulieu, 35042 Rennes Cedex, France
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138
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Takahashi Y, Shiku H, Matsue T. ELECTROCHEMISTRY 2012; 80:271-275. [DOI: 10.5796/electrochemistry.80.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] Open
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139
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Cornut R, Nunige S, Lefrou C, Kanoufi F. Local etching of copper films by the Scanning Electrochemical Microscope in the feedback mode: A theoretical and experimental investigation. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.03.088] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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140
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Cornut R, Bhasin A, Lhenry S, Etienne M, Lefrou C. Accurate and Simplified Consideration of the Probe Geometrical Defaults in Scanning Electrochemical Microscopy: Theoretical and Experimental Investigations. Anal Chem 2011; 83:9669-75. [DOI: 10.1021/ac2026018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Renaud Cornut
- Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI), UMR 5279 CNRS-Grenoble-INP-UdS-UJF, 1130 rue de la piscine, B.P. 75, Domaine Universitaire, 38402 Saint Martin d’Hères Cedex, France
| | - Amit Bhasin
- Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI), UMR 5279 CNRS-Grenoble-INP-UdS-UJF, 1130 rue de la piscine, B.P. 75, Domaine Universitaire, 38402 Saint Martin d’Hères Cedex, France
| | - Sébastien Lhenry
- Laboratoire de Chimie Physique et Microbiologie pour l′Environnement (LCPME), UMR 7564, CNRS-Institut Jean Barriol-Nancy-Université, 405 rue de Vandœuvre, 54600 Villers-lès-Nancy, France
| | - Mathieu Etienne
- Laboratoire de Chimie Physique et Microbiologie pour l′Environnement (LCPME), UMR 7564, CNRS-Institut Jean Barriol-Nancy-Université, 405 rue de Vandœuvre, 54600 Villers-lès-Nancy, France
| | - Christine Lefrou
- Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI), UMR 5279 CNRS-Grenoble-INP-UdS-UJF, 1130 rue de la piscine, B.P. 75, Domaine Universitaire, 38402 Saint Martin d’Hères Cedex, France
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141
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Borgmann S, Schulte A, Neugebauer S, Schuhmann W. Amperometric Biosensors. ADVANCES IN ELECTROCHEMICAL SCIENCES AND ENGINEERING 2011. [DOI: 10.1002/9783527644117.ch1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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142
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Janin M, Ghilane J, Randriamahazaka H, Lacroix JC. Electrochemical fabrication of highly stable redox-active nanojunctions. Anal Chem 2011; 83:9709-14. [PMID: 22035379 DOI: 10.1021/ac202788y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Redox-gated molecular junctions were obtained starting with a relatively large gap between two electrodes, in the micrometer range, followed by electrochemical polymerization of aniline. Polyaniline (PANI) grows from the tip side until it bridges the two electrodes. The resulting junctions were characterized electrochemically by following the variation of the tip-substrate current as a function of the electrochemical gate potential for various bias voltages and by recording their I(V) characteristics. The two electrodes make contact through PANI wires, and microjunctions with conductances around 10(-3) S were obtained. On the basis of a similar setup, PANI nanojunctions with conductances between 10(-7) and 10(-8) S were made, where the current appears to be controlled by fewer than 10 oligoaniline strands. Despite the small number of strands connecting the two electrodes, the junctions are highly stable even when several successive potential sweeps are performed. Comparison of the conductance measured in the oxidized and reduced states leads to an on/off ratio of about 70-100, which is higher than that reported for a single aniline heptamer bridging two electrodes, highlighting the interest of connecting a few tens of molecules using the scanning electrochemical microscopy (SECM) configuration. In some cases, the switching of the PANI takes place in several individual conductance steps close to that obtained for a single oligoaniline. Finally, starting with a microjunction and mechanically withdrawing the tip shrinks it down to the nanometer scale and makes it possible to reach the regime where the conductance is controlled by a limited number of strands. This work presents an easy method for making redox-gated nanojunctions and for probing the conductance of a few oligoanilines despite an initially large tip-substrate gap.
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Affiliation(s)
- Marion Janin
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, Paris, France
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143
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Anne A, Chovin A, Demaille C, Lafouresse M. High-Resolution Mapping of Redox-Immunomarked Proteins Using Electrochemical–Atomic Force Microscopy in Molecule Touching Mode. Anal Chem 2011; 83:7924-32. [DOI: 10.1021/ac201907v] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Agnès Anne
- Laboratoire d’Electrochimie Moléculaire, UMR 7591 CNRS, Université Paris Diderot, Sorbonne Paris Cité, 15 rue Jean-Antoine de Baïf, F-75205 Paris Cedex 13, France
| | - Arnaud Chovin
- Laboratoire d’Electrochimie Moléculaire, UMR 7591 CNRS, Université Paris Diderot, Sorbonne Paris Cité, 15 rue Jean-Antoine de Baïf, F-75205 Paris Cedex 13, France
| | - Christophe Demaille
- Laboratoire d’Electrochimie Moléculaire, UMR 7591 CNRS, Université Paris Diderot, Sorbonne Paris Cité, 15 rue Jean-Antoine de Baïf, F-75205 Paris Cedex 13, France
| | - Manon Lafouresse
- Laboratoire d’Electrochimie Moléculaire, UMR 7591 CNRS, Université Paris Diderot, Sorbonne Paris Cité, 15 rue Jean-Antoine de Baïf, F-75205 Paris Cedex 13, France
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144
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Olson IA, Bacon WA, Baez Sosa YY, Delaney KM, Forte SA, Guglielmo MA, Hill AN, Kiesow KH, Langenbacher RE, Xun Y, Young RO, Bowyer WJ. Measurement of Heterogeneous Reaction Rates: Three Strategies for Controlling Mass Transport and Their Application to Indium-Mediated Allylations. J Phys Chem A 2011; 115:11001-7. [DOI: 10.1021/jp207383b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Isabel A. Olson
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Wendi A. Bacon
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Yessica Y. Baez Sosa
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Katherine M. Delaney
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Salvador A. Forte
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Michael A. Guglielmo
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Alexa N. Hill
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Katrina H. Kiesow
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Rachel E. Langenbacher
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Yuhan Xun
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Ryan O. Young
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Walter J. Bowyer
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
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145
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Latus A, Noël JM, Volanschi E, Lagrost C, Hapiot P. Scanning electrochemical microscopy studies of glutathione-modified surfaces. An erasable and sensitive-to-reactive oxygen species surface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:11206-11211. [PMID: 21755990 DOI: 10.1021/la2020034] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A surface sensitive to reactive oxygen species (ROS) was prepared by reduction of a diazonium salt on glassy carbon electrode followed by the chemical coupling of glutathione (GSH) playing the role of an antioxidant species. The presence of active GSH was characterized through spectroscopic studies and electrochemical analysis after labeling of the -SH group with ferrocene moieties. The specific reactivity of GSH vs ROS was evaluated with scanning electrochemical microscopy (SECM) using the reduction of O(2) to superoxide, O(2)(•-), near the GSH-modified surface. Approach curves show a considerable decrease of the blocking properties of the layer due to reaction of the immobilized GSH with O(2)(•-) and the passage of GSH to the glutathione disulfide (GSSG). The initial surface could be regenerated several times with no significant variations of its antioxidant capacity by simply using the biological system glutathione reductase (GR)/NADPH that reduces GSSG back to GSH. SECM imaging shows also the possibility of writing local and erasable micropatterns on the GSH surface by production of O(2)(•-) at the tip probe electrode.
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Affiliation(s)
- Alina Latus
- Department of Physical Chemistry, University of Bucharest, Boulevard Elisabeta 4-12, Bucharest 030018, Romania
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146
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Takahashi Y, Shevchuk AI, Novak P, Zhang Y, Ebejer N, Macpherson JV, Unwin PR, Pollard AJ, Roy D, Clifford CA, Shiku H, Matsue T, Klenerman D, Korchev YE. Multifunctional nanoprobes for nanoscale chemical imaging and localized chemical delivery at surfaces and interfaces. Angew Chem Int Ed Engl 2011; 50:9638-42. [PMID: 21882305 DOI: 10.1002/anie.201102796] [Citation(s) in RCA: 227] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Revised: 07/14/2010] [Indexed: 02/03/2023]
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147
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Takahashi Y, Shevchuk AI, Novak P, Zhang Y, Ebejer N, Macpherson JV, Unwin PR, Pollard AJ, Roy D, Clifford CA, Shiku H, Matsue T, Klenerman D, Korchev YE. Multifunctional Nanoprobes for Nanoscale Chemical Imaging and Localized Chemical Delivery at Surfaces and Interfaces. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102796] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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148
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McKelvey K, Snowden ME, Peruffo M, Unwin PR. Quantitative Visualization of Molecular Transport through Porous Membranes: Enhanced Resolution and Contrast Using Intermittent Contact-Scanning Electrochemical Microscopy. Anal Chem 2011; 83:6447-54. [DOI: 10.1021/ac201489c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kim McKelvey
- MOAC Doctoral Training Centre and ‡Department of Chemistry, University of Warwick, Coventry, U.K. CV4 7AL
| | - Michael E. Snowden
- MOAC Doctoral Training Centre and ‡Department of Chemistry, University of Warwick, Coventry, U.K. CV4 7AL
| | - Massimo Peruffo
- MOAC Doctoral Training Centre and ‡Department of Chemistry, University of Warwick, Coventry, U.K. CV4 7AL
| | - Patrick R. Unwin
- MOAC Doctoral Training Centre and ‡Department of Chemistry, University of Warwick, Coventry, U.K. CV4 7AL
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149
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Rodriguez RD, Anne A, Cambril E, Demaille C. Optimized hand fabricated AFM probes for simultaneous topographical and electrochemical tapping mode imaging. Ultramicroscopy 2011; 111:973-81. [DOI: 10.1016/j.ultramic.2011.02.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Revised: 12/16/2010] [Accepted: 02/05/2011] [Indexed: 10/18/2022]
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150
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Hazimeh H, Nunige S, Cornut R, Lefrou C, Combellas C, Kanoufi F. Surface Reactivity from Electrochemical Lithography: Illustration in the Steady-State Reductive Etching of Perfluorinated Surfaces. Anal Chem 2011; 83:6106-13. [DOI: 10.1021/ac201255c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Hassan Hazimeh
- Physico-Chimie des Electrolytes, des Colloides et Sciences Analytiques, ESPCI ParisTech, CNRS UMR 7195, 10 Rue Vauquelin, 75231 Paris Cedex 05, France
| | - Sandra Nunige
- Physico-Chimie des Electrolytes, des Colloides et Sciences Analytiques, ESPCI ParisTech, CNRS UMR 7195, 10 Rue Vauquelin, 75231 Paris Cedex 05, France
| | - Renaud Cornut
- Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces, UMR 5279 CNRS-Grenoble-INP-UJF, 1130 Rue de la Piscine, B.P. 75, Domaine Universitaire, 38402 Saint Martin d’Hères Cedex, France
| | - Christine Lefrou
- Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces, UMR 5279 CNRS-Grenoble-INP-UJF, 1130 Rue de la Piscine, B.P. 75, Domaine Universitaire, 38402 Saint Martin d’Hères Cedex, France
| | - Catherine Combellas
- Physico-Chimie des Electrolytes, des Colloides et Sciences Analytiques, ESPCI ParisTech, CNRS UMR 7195, 10 Rue Vauquelin, 75231 Paris Cedex 05, France
| | - Frédéric Kanoufi
- Physico-Chimie des Electrolytes, des Colloides et Sciences Analytiques, ESPCI ParisTech, CNRS UMR 7195, 10 Rue Vauquelin, 75231 Paris Cedex 05, France
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