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Vilà N, Nguyen L, Lacroix JC, Sun X, Walcarius A, Mbomekallé I. Assessing the Influence of Confinement on the Stability of Polyoxometalate-Functionalized Surfaces: A Soft Sequential Immobilization Approach for Electrochromic Devices. ACS Appl Mater Interfaces 2024. [PMID: 38713480 DOI: 10.1021/acsami.4c01859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
A functionalization process has been developed and the experimental conditions optimized allowing the immobilization of first-row transition metal (Mn+) containing polyoxometalates (POMs) with the formula [M(H2O)P2W17O61](10-n)- on transparent indium-tin oxide (ITO) electrodes for electrochromic applications. Both flat ITO grafted with 4-sulfophenyl moieties and sulfonate-functionalized vertically oriented silica films on ITO have been used as electrode supports to evaluate possible confinement effects provided by the mesoporous matrix on the stability of the modified surfaces and their electrochromic properties. Functionalization involved a two-step sequential process: (i) the immobilization of hexaaqua metallic ions, such as Fe(H2O)63+, onto the sulfonate-functionalized materials achieved through hydrogen bonding interactions between the sulfonate functions and aqua ligands (water molecules) coordinated to the metallic ions facilitating and stabilizing the attachment of the metallic ions to the sulfonated surfaces; (ii) their coordination to [P2W17O61]10- species to generate "in situ" the target [Fe(H2O)P2W17O61]7- moieties. Comparison of the characterized surfaces clearly evidenced a significant improvement in the long-term stability of the nanostructured [Fe(H2O)P2W17O61]7--functionalized silica films compared to the less constrained flat [Fe(H2O)P2W17O61]7--modified ITO electrodes for which a rapid loss of [P2W17O61]10- species was observed. Concordantly, the [Fe(H2O)P2W17O61]7- POM confined in the mesoporous films coated on ITO gave rise to much better and stable electrochromic properties, with a transmittance modulation of 40% at 515 nm.
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Affiliation(s)
- Neus Vilà
- Université de Lorraine, CNRS, LCPME, Nancy F-54000, France
| | - Linh Nguyen
- Université Paris Cité, CNRS, ITODYS, Paris F-75, France
| | | | - Xiaonan Sun
- Université Paris Cité, CNRS, ITODYS, Paris F-75, France
| | | | - Israël Mbomekallé
- Université Paris Saclay CNRS, Institut de Chimie Physique,Orsay F-91405, France
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Tananaiko O, Walcarius A. Composite Silica-Based Films as Platforms for Electrochemical Sensors. CHEM REC 2024; 24:e202300194. [PMID: 37737456 DOI: 10.1002/tcr.202300194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/29/2023] [Indexed: 09/23/2023]
Abstract
Sol-gel-derived silica thin films generated onto electrode surfaces in the form of organic-inorganic hybrid coatings or other composite layers have found tremendous interest for being used as platforms for the development of electrochemical sensors and biosensors. After a brief description of the strategies applied to prepare such materials, and their interest as electrode modifier, this review will summarize the major advances made so far with composite silica-based films in electroanalysis. It will primarily focus on electrochemical sensors involving both non-ordered composite films and vertically oriented mesoporous membranes, the biosensors exploiting the concept of sol-gel bioencapsulation on electrode, the spectroelectrochemical sensors, and some others.
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Affiliation(s)
- Oksana Tananaiko
- Department of Analytical Chemistry, National Taras Shevchenko University of Kyiv, Volodymyrska Str., 64, Kyiv, Ukraine, 01601
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Jamshidi M, Walcarius A, Thangamuthu M, Mehrgardi M, Ranjbar A. Electrochemical approaches based on micro- and nanomaterials for diagnosing oxidative stress. Mikrochim Acta 2023; 190:117. [PMID: 36879086 DOI: 10.1007/s00604-023-05681-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/30/2023] [Indexed: 03/08/2023]
Abstract
This review article comprehensively discusses the various electrochemical approaches for measuring and detecting oxidative stress biomarkers and enzymes, particularly reactive oxygen/nitrogen species, highly reactive chemical molecules, which are the byproducts of normal aerobic metabolism and can oxidize cellular components such as DNA, lipids, and proteins. First, we address the latest research on the electrochemical determination of reactive oxygen species generating enzymes, followed by detection of oxidative stress biomarkers, and final determination of total antioxidant activity (endogenous and exogenous). Most electrochemical sensing platforms exploited the unique properties of micro- and nanomaterials such as carbon nanomaterials, metal or metal oxide nanoparticles (NPs), conductive polymers and metal-nano compounds, which have been mainly used for enhancing the electrocatalytic response of sensors/biosensors. The performance of the electroanalytical devices commonly measured by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) in terms of detection limit, sensitivity, and linear range of detection is also discussed. This article provides a comprehensive review of electrode fabrication, characterization and evaluation of their performances, which are assisting to design and manufacture an appropriate electrochemical (bio)sensor for medical and clinical applications. The key points such as accessibility, affordability, rapidity, low cost, and high sensitivity of the electrochemical sensing devices are also highlighted for the diagnosis of oxidative stress. Overall, this review brings a timely discussion on past and current approaches for developing electrochemical sensors and biosensors mainly based on micro and nanomaterials for the diagnosis of oxidative stress.
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Affiliation(s)
- Mahdi Jamshidi
- Department of Toxicology and Pharmacology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran.,Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Alain Walcarius
- Laboratory of Physical Chemistry and Microbiology for Materials and the Environment, Université de Lorraine, CNRS, LCPME, Nancy, France
| | - Madasamy Thangamuthu
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Masoud Mehrgardi
- Department of Chemistry, University of Isfahan, Isfahan, 81746-73441, Iran
| | - Akram Ranjbar
- Department of Toxicology and Pharmacology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran. .,Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
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Liu Q, Helú MAB, Walcarius A, Liu L. Visualization of working electrode reactivity from an electrochromic counter electrode. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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5
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Ahoulou S, Richart C, Carteret C, Pillet S, Vilà N, Walcarius A. Weak Coordinating Character of Organosulfonates in Oriented Silica Films: An Efficient Approach for Immobilizing Cationic Metal-Transition Complexes. Molecules 2022; 27:molecules27175444. [PMID: 36080210 PMCID: PMC9458166 DOI: 10.3390/molecules27175444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/13/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
Iron (II) tris(2,2′-bipyridine) complexes, [Fe(bpy)3]2+, have been synthesized and immobilized in organosulfonate-functionalized nanostructured silica thin films taking advantage of the stabilization of [Fe(H2O)6]2+ species by hydrogen bonds to the anionic sulfonate moieties grafted to the silica nanopores. In a first step, thiol-based silica films have been electrochemically generated on indium tin oxide (ITO) substrates by co-condensation of 3-mercaptopropyltrimethoxysilane (MPTMS) and tetraethoxysilane (TEOS). Secondly, the thiol function has been modified to sulfonate by chemical oxidation using hydrogen peroxide in acidic medium as an oxidizing agent. The immobilization of [Fe(bpy)3]2+ complexes has been performed in situ in two consecutive steps: (i) impregnation of the sulfonate functionalized silica films in an aqueous solution of iron (II) sulfate heptahydrate; (ii) dipping of the iron-containing mesostructures in a solution of bipyridine ligands in acetonitrile. The in situ formation of the [Fe(bpy)3]2+ complex is evidenced by its characteristic optical absorption spectrum, and elemental composition analysis using X-ray photoelectron spectroscopy. The measured optical and electrochemical properties of immobilized [Fe(bpy)3]2+ complexes are not altered by confinement in the nanostructured silica thin film.
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Affiliation(s)
- Samuel Ahoulou
- LCPME, CNRS, Universite de Lorraine, F-54000 Nancy, France
- CRM2, CNRS, Universite de Lorraine, F-54000 Nancy, France
| | - Clara Richart
- LCPME, CNRS, Universite de Lorraine, F-54000 Nancy, France
| | | | - Sébastien Pillet
- CRM2, CNRS, Universite de Lorraine, F-54000 Nancy, France
- Correspondence: (S.P.); (N.V.); (A.W.)
| | - Neus Vilà
- LCPME, CNRS, Universite de Lorraine, F-54000 Nancy, France
- Correspondence: (S.P.); (N.V.); (A.W.)
| | - Alain Walcarius
- LCPME, CNRS, Universite de Lorraine, F-54000 Nancy, France
- Correspondence: (S.P.); (N.V.); (A.W.)
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El Housseini W, Lapicque F, Walcarius A, Etienne M. A hybrid electrochemical flow reactor to couple H
2
oxidation to NADH regeneration for biochemical reactions. Electrochemical Science Adv 2022. [DOI: 10.1002/elsa.202100012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Wassim El Housseini
- CNRS, Université de Lorraine LCPME Nancy F‐54000 France
- CNRS, Université de Lorraine LRGP Nancy F‐54000 France
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El Housseini W, Lapicque F, Pontvianne S, Vilà N, Mazurenko I, Walcarius A, Etienne M. Hybrid flow bioreactor with all catalysts immobilized for enzymatic electrosynthesis. ChemElectroChem 2022. [DOI: 10.1002/celc.202200463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | - Neus Vilà
- Université de Lorraine: Universite de Lorraine LCPME FRANCE
| | | | - Alain Walcarius
- CNRS: Centre National de la Recherche Scientifique LCPME FRANCE
| | - Mathieu Etienne
- Centre National de la Recherche Scientifique LCPME 405, rue de Vandoeuvre 54600 Villers-les-Nancy FRANCE
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Bohn PW, Cao XE, Chang S, Chen D, Confederat S, Duleba D, E P, Edwards MA, Ewing A, Gundry L, He J, Kamali AR, Kanoufi F, Kwon SR, Limani N, Linfield S, Liu X, Long YT, Lu SM, Mao BW, Minteer S, Pandey P, Ren H, Ross A, Slater B, Unwin P, Vakamulla Raghu SN, Venton J, Walcarius A, Wei H, Wu Y, Xiao L, Xu W, Ying YL, Yu P, Zhang Z. Advanced nanoelectrochemistry implementation: from concept to application: general discussion. Faraday Discuss 2022; 233:354-373. [PMID: 35302573 DOI: 10.1039/d2fd90004a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Buckingham MA, Cao XE, Chang S, Chen HY, Chen Q, Chinnathambi S, Edwards MA, Fornasaro S, Gooding J, Hill C, Hirano-Iwata A, Kamali AR, Kanoufi F, Krause S, Kurihara K, Lemay SG, Linfield S, Liu X, Long YT, Lu SM, Ma H, Mao BW, Meloni GN, Menkin S, Minteer S, O'Neill S, Pandey P, Ren H, Slater B, Tian Z, Unwin P, Valavanis D, Walcarius A, Willets KK, Wu Y, Xiao L, Xu W, Yang W, Ying YL, Zhang Z. Emerging electrochemical methods at the nanointerface: general discussion. Faraday Discuss 2022; 233:257-282. [PMID: 35302154 DOI: 10.1039/d2fd90003c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Albrecht T, Bohn PW, Buckingham MA, Cao XE, Chen D, Chen Q, Corva M, Edwards MA, Kamali AR, Kanoufi F, Krause S, Linfield S, Liu X, Ma H, Mao BW, Pandey P, Tschulik K, Vakamulla Raghu SN, Walcarius A, Xiao L, Ying YL. State of the art energy conversion at the nanointerface: general discussion. Faraday Discuss 2022; 233:112-121. [PMID: 35302150 DOI: 10.1039/d2fd90002e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Le TXH, Gajdar J, Vilà N, Celzard A, Fierro V, Walcarius A, Lapicque F, Etienne M. Improved Productivity of NAD
+
Reduction under Forced Convection in Aerated Solutions. ChemElectroChem 2022. [DOI: 10.1002/celc.202101225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Julius Gajdar
- Université de Lorraine CNRS, LCPME 54000 Nancy France
| | - Neus Vilà
- Université de Lorraine CNRS, LCPME 54000 Nancy France
| | - Alain Celzard
- Université de Lorraine CNRS, IJL 88000 Epinal France
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12
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El Housseini W, Etienne M, Walcarius A, Lapicque F. Multiphase chemical engineering as a tool in modelling electromediated reactions- example of Rh complex-mediated regeneration of NADH. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Ullah W, Herzog G, Vilà N, Walcarius A. Polyaniline nanowire arrays generated through oriented mesoporous silica films: effect of pore size and spectroelectrochemical response. Faraday Discuss 2021; 233:77-99. [PMID: 34889333 DOI: 10.1039/d1fd00034a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Indium-tin oxide electrodes modified with vertically aligned silica nanochannel membranes have been produced by electrochemically assisted self-assembly of cationic surfactants (cetyl- or octadecyl-trimethylammonium bromide) and concomitant polycondensation of the silica precursors (tetraethoxysilane). They exhibited pore diameters in the 2-3 nm range depending on the surfactant used. After surfactant removal, the bottom of mesopores was derivatized with aminophenyl groups via electrografting (i.e., electrochemical reduction of in situ generated aminophenyl monodiazonium salt). These species covalently bonded to the ITO substrate were then exploited to grow polyaniline nanofilaments by electropolymerization of aniline through the nanochannels. Under potentiostatic conditions, the length of polyaniline wires is controllable by tuning the electropolymerization time. From cyclic voltammetry characterization performed either before or after dissolution of the silica template, it appeared that both the polyaniline/silica composite and the free polyaniline nanowire arrays were electroactive, yet with much larger peak currents in the latter case as a result of larger effective surface area offered to the electrolyte solution. At identical electropolymerization time, the amount of deposited polyaniline was larger when using the silica membrane with larger pore diameter. All polyaniline deposits exhibited electrochromic properties. However, the spectroelectrochemical data indicated more complete interconversion between the coloured oxidized form and colourless reduced polyaniline for the arrays of nanofilaments in comparison to bulky films. In addition, the template-free nanowire arrays (i.e., after silica dissolution) were characterized by faster electrochromic behaviour than the polyaniline/silica hybrid, confirming the potential interest of such polyaniline nano-brushes for practical applications.
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Affiliation(s)
- Wahid Ullah
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564, CNRS - Université de Lorraine, 405 Rue de Vandoeuvre, Villers-lès-Nancy, F-54600, France.
| | - Grégoire Herzog
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564, CNRS - Université de Lorraine, 405 Rue de Vandoeuvre, Villers-lès-Nancy, F-54600, France.
| | - Neus Vilà
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564, CNRS - Université de Lorraine, 405 Rue de Vandoeuvre, Villers-lès-Nancy, F-54600, France.
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564, CNRS - Université de Lorraine, 405 Rue de Vandoeuvre, Villers-lès-Nancy, F-54600, France.
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Ahoulou S, Vilà N, Pillet S, Carteret C, Schaniel D, Walcarius A. Multi-stimuli Photo and Redox-active Nanostructured Mesoporous Silica Films on Transparent Electrodes. Chemphyschem 2021; 22:2464-2477. [PMID: 34708493 DOI: 10.1002/cphc.202100608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/24/2021] [Indexed: 11/12/2022]
Abstract
Silica matrices hosting transition metal guest complexes may offer remarkable platforms for the development of advanced functional devices. We report here the elaboration of ordered and vertically oriented mesoporous silica thin films containing covalently attached tris(bipyridine)iron derivatives using a combination of electrochemically assisted self-assembly (EASA) method and Huisgen cycloaddition reaction. Such a versatile approach is primarily used to bind nitrogen-based chelating ligands such as (4-[(2-propyn-1-yloxy)]4'-methyl-2,2'-bypiridine, bpy') inside the nanochannels. Further derivatization of the bpy'-functionalized silica thin films is then achieved via a subsequent in-situ complexation step to generate [Fe(bpy)2 (bpy')]2+ inside the mesopore channels. After giving spectroscopic evidences for the presence of such complexes in the functionalized film, electrochemistry is used to transform the confined diamagnetic (S=0) F e L S b p y 2 b p y ' 2 + species to paramagnetic (S=1/2) oxidized F e L S b p y 2 b p y ' 3 + species in a reversible way, while blue light irradiation (λ=470 nm) enables populating the short-lived paramagnetic (S=2) F e H S b p y 2 b p y ' 2 + excited state. [Fe(bpy)2 (bpy')]2+ -functionalized ordered films are therefore both electro- and photo-active through the manipulation of the oxidation state and spin state of the confined complexes, paving the way for their integration in optoelectronic devices.
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Affiliation(s)
- Samuel Ahoulou
- Université de Lorraine, CNRS, LCPME UMR 7564, 54000, Nancy, France.,Université de Lorraine, CRM2 UMR 7036, 54000, Nancy, France
| | - Neus Vilà
- Université de Lorraine, CNRS, LCPME UMR 7564, 54000, Nancy, France
| | | | - Cédric Carteret
- Université de Lorraine, CNRS, LCPME UMR 7564, 54000, Nancy, France
| | | | - Alain Walcarius
- Université de Lorraine, CNRS, LCPME UMR 7564, 54000, Nancy, France
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Abstract
Supramolecular soft-templating approaches to mesoporous materials have revolutionized the generation of regular nanoarchitectures exhibiting unique features such as uniform pore structure with tunable dimensions, large surface area, and high pore volume, variability of composition, and/or ease of functionalization with a wide range of organo-functional groups or good hosts for the in situ synthesis of nano-objects. One appealing concept in this field is the development of ordered mesoporous thin films as such a configuration has proven to be essential for various applications including separation, sensing, catalysis (electro and photo), energy conversion and storage, photonics, solar cells, photo- and electrochromism, and low-k dielectric coatings for microelectronics, bio and nanobio devices, or biomimetic surfaces. Supported or free-standing mesoporous films are mostly prepared by evaporation induced self-assembly methods, thanks to their good processing capability and flexibility to manufacture mesostructured oxides and organic-inorganic hybrids films with periodically organized porosity.One important challenge is the control of pore orientation, especially in one-dimensional nanostructures, which is not straightforward from the above evaporation induced self-assembly methods. Accessibility of the pores represents another critical issue, which can be basically ensured in the event of effective interconnections between the pores, but the vertical alignment of mesopore channels will definitely offer the best configuration to secure the most efficient transfer processes through the mesoporous membranes. The orthogonal growth of mesochannels is however not thermodynamically favored, requiring the development of methods enabling self-organization through nonequilibrium states. We found that electrochemistry afforded a real boon to tackle this problem via the electrochemically assisted self-assembly (EASA) method, which not only provides a fast and versatile way to generate highly ordered and hexagonally packed mesopore channels but also constitutes a real platform for the development of functionalized oriented films carrying a wide range of organo-functional groups of adjustable composition and properties.This Account introduces the EASA concept and discusses its development along with the significant progress made from its discovery, notably in view of recent advances on the functionalization of oriented mesoporous silica films, which expand their fields of application. EASA is based on the in situ combination of electrochemically triggered pH-induced polycondensation of silica precursors with electrochemical interfacial surfactant templating, leading to the very fast (a few seconds) growth of vertically aligned silica walls through self-assembly around surfactant hemimicelles transiently formed onto the underlying support. This method benefits from the possibility to deposit uniform thin films onto surfaces of different natures and complex morphologies including at the microscale. From this discovery, our research expanded to cover domains beyond the simple production of bare silica films, turning to the challenge of incorporation and exploitation of organo-functional groups or nanofilaments. So far, the great majority of methods developed for the functionalization of mesoporous silica is based on postsynthesis grafting or co-condensation approaches, which suffer from serious limitations with oriented films (pore blocking, lack of ordering). We demonstrated the uniqueness of EASA combined with click chemistry to afford a versatile and universal route to oriented mesoporous films bearing organo-functional groups of multiple composition. This opened perspectives for future developments and applications, some of which (sensing, permselective coatings, energy storage, electrocatalysis, electrochromism) are also considered in this Account.
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Affiliation(s)
- Alain Walcarius
- Université de Lorraine, CNRS, Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), 405 Rue de Vandoeuvre, F-54000 Nancy, France
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16
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Fozing Mekeuo GA, Despas C, Péguy Nanseu‐Njiki C, Walcarius A, Ngameni E. Preparation of Functionalized
Ayous
Sawdust‐carbon Nanotubes Composite for the Electrochemical Determination of Carbendazim Pesticide. ELECTROANAL 2021. [DOI: 10.1002/elan.202100262] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ghislaine Ariane Fozing Mekeuo
- Laboratoire de Chimie Analytique, Faculté des Sciences Université de Yaoundé I BP 812 Yaoundé Cameroun
- Université de Lorraine, CNRS LCPME F-54000 Nancy France
| | | | | | | | - Emmanuel Ngameni
- Laboratoire de Chimie Analytique, Faculté des Sciences Université de Yaoundé I BP 812 Yaoundé Cameroun
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Gamero-Quijano A, Dossot M, Walcarius A, Scanlon MD, Herzog G. Electrogeneration of a Free-Standing Cytochrome c-Silica Matrix at a Soft Electrified Interface. Langmuir 2021; 37:4033-4041. [PMID: 33761740 PMCID: PMC8562870 DOI: 10.1021/acs.langmuir.1c00409] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Interactions of a protein with a solid-liquid or a liquid-liquid interface may destabilize its conformation and hence result in a loss of biological activity. We propose here a method for the immobilization of proteins at an electrified liquid-liquid interface. Cytochrome c (Cyt c) is encapsulated in a silica matrix through an electrochemical process at an electrified liquid-liquid interface. Silica condensation is triggered by the interfacial transfer of cationic surfactant, cetyltrimethylammonium, at the lower end of the interfacial potential window. Cyt c is then adsorbed on the previously electrodeposited silica layer, when the interfacial potential, Δowϕ, is at the positive end of the potential window. By cycling of the potential window back and forth, silica electrodeposition and Cyt c adsorption occur sequentially as demonstrated by in situ UV-vis absorbance spectroscopy. After collection from the liquid-liquid interface, the Cyt c-silica matrix is characterized ex situ by UV-vis diffuse reflectance spectroscopy, confocal Raman microscopy, and fluorescence microscopy, showing that the protein maintained its tertiary structure during the encapsulation process. The absence of denaturation is further confirmed in situ by the absence of electrocatalytic activity toward O2 (observed in the case of Cyt c denaturation). This method of protein encapsulation may be used for other proteins (e.g., Fe-S cluster oxidoreductases, copper-containing reductases, pyrroloquinoline quinone-containing enzymes, or flavoproteins) in the development of biphasic bioelectrosynthesis or bioelectrocatalysis applications.
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Affiliation(s)
- Alonso Gamero-Quijano
- The
Bernal Institute and Department of Chemical Sciences, School of Natural
Sciences, University of Limerick (UL), Limerick V94 T9PX, Ireland
| | - Manuel Dossot
- Université
de Lorraine, CNRS, LCPME, F-54000 Nancy, France
| | | | - Micheál D. Scanlon
- The
Bernal Institute and Department of Chemical Sciences, School of Natural
Sciences, University of Limerick (UL), Limerick V94 T9PX, Ireland
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Sipa K, Kowalewska K, Leniart A, Walcarius A, Herzog G, Skrzypek S, Poltorak L. Electrochemically assisted polyamide deposition at three-phase junction. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2020.106910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Moissette A, Batonneau-Gener I, Hureau M, Pinard L, Vezin H, Perdicakis M, Walcarius A. Electron transfers in graphitized HZSM-5 zeolites. Phys Chem Chem Phys 2021; 23:1914-1922. [PMID: 33459301 DOI: 10.1039/d0cp06148d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present work, we report the electron transfers occurring after ionization of the guest molecules of t-stilbene incorporated in graphitized HZSM-5 zeolites and we compare these results with the data obtained previously for graphite-free zeolites. Complementary diffuse reflectance UV-vis and Raman scattering spectroscopies provide evidence for stabilization of long lived charge separated states as observed in non-graphitized ZSM-5. The spectral features indicate that these species are located in the channels of the zeolite structure. However, the pulsed EPR technique shows strong coupling between unpaired electrons and the 13C atoms in the case of graphitized zeolites while this interaction is not observed in normal zeolites. This is assigned to the presence of charge transfer complexes in the close vicinity of graphite areas and to the possible electron transfer to the graphitized domain. Using cyclic voltammetry, an electrochemical response is observed for the first time in such systems demonstrating the role played by graphite in the electron transfers.
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Affiliation(s)
- Alain Moissette
- LASIRE Bât. C5, Faculté des Sciences et Technologies, Université de Lille, 59655 Villeneuve d'Ascq Cedex, France.
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Ullah W, Herzog G, Vilà N, Walcarius A. Electrografting and electropolymerization of nanoarrays of PANI filaments through silica mesochannels. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2020.106896] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Wang J, Vilà N, Walcarius A. Electroactive organically modified mesoporous silicates on graphene oxide-graphite 3D architectures operating with electron-hopping for high rate energy storage. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137407] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Nasir T, Gamero-Quijano A, Despas C, Dossot M, Herzog G, Walcarius A. Signal amplification by electro-oligomerisation for improved isoproturon detection. Talanta 2020; 220:121347. [PMID: 32928388 DOI: 10.1016/j.talanta.2020.121347] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/25/2020] [Accepted: 06/27/2020] [Indexed: 12/26/2022]
Abstract
A novel concept is introduced for signal amplification in electrochemical sensing: the electro-oligomerisation stripping voltammetry, which has been applied here to the improved detection of the isoproturon herbicide in spring waters as a proof-of-principle. It involves a potentiostatic accumulation step onto a glassy carbon electrode (at +1.5 V vs Ag/AgCl reference electrode for 300 s) leading to the formation of an oligomeric film, which is then detected by cathodic stripping square wave voltammetry (SWV). The presence and composition of the film are confirmed by confocal Raman spectroscopy. Its characterisation by cyclic voltammetry demonstrates the reversible nature of the electrodeposited material, confirming its interest for sensitive detection by SWV. Adding a mesoporous silica membrane with vertically oriented nanochannels further enhances the sensitivity of the sensor, exhibiting a linear response in the 10-100 μM concentration range. This effect was even more interesting for real media analysis thanks to the permselective properties of such nanoporous coating in rejecting interferences and/or surface fouling agents. The method should be applicable to other analytes that are usually not detectable by conventional accumulation/stripping voltammetry.
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Affiliation(s)
- Tauqir Nasir
- Université de Lorraine, CNRS, LCPME, F-54000, Nancy, France
| | - Alonso Gamero-Quijano
- The Bernal Institute and Department of Chemical Sciences, School of Natural Sciences, University of Limerick, V94 T9PX, Ireland
| | | | - Manuel Dossot
- Université de Lorraine, CNRS, LCPME, F-54000, Nancy, France
| | - Grégoire Herzog
- Université de Lorraine, CNRS, LCPME, F-54000, Nancy, France.
| | - Alain Walcarius
- Université de Lorraine, CNRS, LCPME, F-54000, Nancy, France.
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Ullah W, Herzog G, Vilà N, Brites Helú M, Walcarius A. Electrochemically Assisted Deposition of Nanoporous Silica Membranes on Gold Electrodes: Effect of 3‐Mercaptopropyl(trimethoxysilane) “Molecular Glue” on Film Formation, Permeability and Metal Underpotential Deposition. ChemElectroChem 2020. [DOI: 10.1002/celc.202001347] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Wahid Ullah
- Université de Lorraine, CNRS, LCPME Nancy France
| | | | - Neus Vilà
- Université de Lorraine, CNRS, LCPME Nancy France
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Fekry AM, Abdel‐Gawad SA, Azab SM, Walcarius A. A Sensitive Electrochemical Sensor for Moxifloxacin Hydrochloride Based on Nafion/Graphene Oxide/Zeolite Modified Carbon Paste Electrode. ELECTROANAL 2020. [DOI: 10.1002/elan.202060355] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Amany M. Fekry
- Chemistry Department, Faculty of Science Cairo University Giza 12613 Egypt
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564 CNRS – Université de Lorraine 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
| | | | - Shereen M. Azab
- Pharmaceutical Chemistry Dept. National Organization for Drug Control and Research [NODCAR] 6 Abu Hazem Street, Pyramids Ave, 29 Giza postcode is missing Egypt
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564 CNRS – Université de Lorraine 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
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Vilà N, Walcarius A. Bis(terpyridine) Iron(II) Functionalized Vertically-Oriented Nanostructured Silica Films: Toward Electrochromic Materials. Front Chem 2020; 8:830. [PMID: 33094099 PMCID: PMC7523427 DOI: 10.3389/fchem.2020.00830] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 08/06/2020] [Indexed: 11/17/2022] Open
Abstract
Recent and potential applications of electrochromic materials include smart windows, optoelectronic devices, and energy conversion. In this study, we have incorporated bis(terpyridine) iron (II) complexes into vertically-oriented silica thin films deposited on indium-tin oxide (ITO) and their electrochromic behavior has been investigated. If 2,2′:6′,2″-terpyridine is commonly used as a ligand for forming metallo-supramolecular assemblies, with the objective to get metal-terpyridine complexes with multiple stable redox states, their simple and reliable arrangement into linear structures enabling effective electronic communication is however more challenging. We propose to overcome this difficulty by generating such complexes within vertical nanochannels on electrode. Terpyridine ligands were firstly immobilized by combining a click chemistry azide/alkyne approach with an electrochemically-assisted self-assembly (EASA) method used to grow an oriented mesoporous silica membrane bearing azide groups which were further derivatized with 4′-ethynyl-terpyridine ligands. The resulting terpyridine-functionalized films were consecutively dipped in an aqueous solution of Fe(BF4)2 and then in a solution of terpyridine in acetonitrile to form the bis(terpyridine) iron (II) complexes in situ. The electrochromic properties of the films functionalized at various levels were examined by monitoring the changes in their UV/Vis spectra upon electrochemical oxidation at controlled potential of +1.2 V vs. Ag/AgCl. Due to facile charge delocalization during the Fe2+ to Fe3+ redox process, the bis(terpyridine) iron (II) functionalized silica films exhibited electrochromic properties by changing from violet to non-colored using TBABF4 in acetonitrile as an electrolyte. The bis(terpyridine) iron(II) film experienced reversible electrochromic switching by applying +0.5 V in a reverse reduction electrochemical process. The Fe(tpy)2-functionalized silica thin films displayed a good contrast ratio (ΔT%) of 47% and relatively high coloration efficiency (CE) of about 245 cm2/C with a response time of coloring and bleaching of a few seconds (< 4 s).
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Affiliation(s)
- Neus Vilà
- Université de Lorraine, CNRS, LCPME, Nancy, France
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Basnig D, Vilá N, Herzog G, Walcarius A. Voltammetric behaviour of cationic redox probes at mesoporous silica film electrodes. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113993] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Walcarius A. Promises of the “Nano-World” for electrochemical sensing and energy devices. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04684-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Wang J, Vilà N, Walcarius A. Redox-Active Vertically Aligned Mesoporous Silica Thin Films as Transparent Surfaces for Energy Storage Applications. ACS Appl Mater Interfaces 2020; 12:24262-24270. [PMID: 32366093 DOI: 10.1021/acsami.0c03650] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Organic-inorganic hybrid membranes, made of a high density of redox active moieties covalently bonded to the internal surfaces of vertically aligned mesoporous silica thin films, are relevant for applications in transparent energy storage devices. This is demonstrated here on the basis of functionalized transparent mesoporous silica thin films prepared on the indium-tin oxide electrode from the combination of an electrochemically induced self-assembly method (to generate azide-functionalized silica) and a copper-catalyzed azide-alkyne click reaction (to derivatize the material with electroactive groups). The very small thickness (105 nm) and the uniformly distributed vertical mesochannels with ultranarrow diameter (2 nm) make the hybrid film a promising substrate that not only achieves a transparency of 82% but also provides large surface area to accommodate a high density of redox active species such as ferrocene. In such rigid and insulating porous membranes, the charge transfer reactions take place through a pure electron-hopping mechanism between adjacent redox sites, which are favored by the ordered and oriented mesostructure containing large amounts of uniformly distributed ferrocene functions in the mesochannels. Their performance results from both high charge transfer rates (electron hopping) and easy mass transport (fast diffusion of counter ions). The most effective system is the ferrocene-functionalized silica film prepared from 40% organosilane, which is able to deliver a capacity of 105 C cm-3 (1.10 mC cm-2) at a current density of 0.4 A cm-3 (with up to 48% capacity retention achieved at a charging time as short as 2.8 s). Such an electrode can be associated to an electrodeposited graphene anode in a solid-state battery-capacitor hybrid device, which can deliver 0.74 mC cm-2 at a potential scan rate of 20 mV s-1. The azide-functionalized mesoporous silica film is actually a versatile platform that can be functionalized with different redox molecules, as shown here for cobaltocenium moieties, which may broaden its application field.
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Affiliation(s)
- Jianren Wang
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, 405 rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Neus Vilà
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, 405 rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, 405 rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
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Shehata M, Fekry AM, Walcarius A. Moxifloxacin Hydrochloride Electrochemical Detection at Gold Nanoparticles Modified Screen-Printed Electrode. Sensors (Basel) 2020; 20:s20102797. [PMID: 32423013 PMCID: PMC7287685 DOI: 10.3390/s20102797] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/09/2020] [Accepted: 05/12/2020] [Indexed: 02/05/2023]
Abstract
It appeared that either the carbon paste or the screen-printed carbon electrodes that were modified with gold nanoparticles (AuNPs) gave rise to the largest current responses after a rapid screening of various nanomaterials as modifiers of carbon composite electrodes in view of designing an electrochemical sensor for Moxifloxacin Hydrochloride (Moxi). The screen-printed electrode (SPE) support was preferred over the carbon paste one for its ability to be used as disposable single-use sensor enabling the circumvention of the problems of surface fouling encountered in the determination of Moxi. The response of AuNPs modified SPE to Moxi was investigated by cyclic voltammetry (CV) (including the effect of the potential scan rate and the pH of the medium), chronoamperometry, and differential pulse voltammetry (DPV) after morphological and physico-chemical characterization. DPV was finally applied to Moxi detection in phosphate buffer at pH 7, giving rise to an accessible concentration window ranging between 8 µM and 0.48 mM, and the detection and quantification limits were established to be 11.6 µM and 38.6 µM, correspondingly. In order to estimate the applicability of Moxi identification scheme in actual trials, it was practiced in a human baby urine sample with excellent recoveries between 99.8 % and 101.6 % and RSDs of 1.1-3.4%, without noticeable interference.
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Affiliation(s)
- M. Shehata
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt;
| | - Amany M. Fekry
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt;
- LCPME, Université de Lorraine, CNRS, F-54000 Nancy, France
- Correspondence: (A.M.F.); (A.W.); Tel.: +202-0101-545-331 (A.M.F.); +33-3-7274-7375 (A.W.)
| | - Alain Walcarius
- LCPME, Université de Lorraine, CNRS, F-54000 Nancy, France
- Correspondence: (A.M.F.); (A.W.); Tel.: +202-0101-545-331 (A.M.F.); +33-3-7274-7375 (A.W.)
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Dang N, Etienne M, Walcarius A, Liu L. Scanning Gel Electrochemical Microscopy (SGECM): Lateral Physical Resolution by Current and Shear Force Feedback. Anal Chem 2020; 92:6415-6422. [PMID: 32233427 DOI: 10.1021/acs.analchem.9b05538] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Scanning gel electrochemical microscopy (SGECM) is a novel technique measuring local electrochemistry based on a gel probe. The gel probe, which is fabricated by electrodeposition of hydrogel on a microdisk electrode, immobilizes the electrolyte, and constitutes a two-electrode system upon contact with the sample. The contact area determines the lateral physical resolution of the measurement, and considering the soft nature of the gel it is essential to be well analyzed. In this work, the lateral physical resolution of SGECM is quantitatively studied from two aspects: (1) marking single sampling points by locally oxidizing Ag to AgCl and measuring their size; (2) line scan over reference samples with periodic topography and composition. The gel probe is approached to the sample by either current or shear force feedback, and the physical resolution of them is compared. For the optimal gel probe based on 25 μm diameter Pt disk electrode of Rg ≈ 2, the lateral physical resolution of SGECM at contact position is ca. 50 μm for current feedback and ca. 63 μm for shear force feedback. More importantly, the lateral physical resolution of SGECM can be flexibly tuned in the range of 14-78 μm by pulling or pressing the gel probe after touching the sample. In general, current feedback is more sensitive to gel-sample contact than shear force feedback. But the latter is more versatile, which is also applicable to nonconductive samples.
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Affiliation(s)
- Ning Dang
- Université de Lorraine, CNRS, Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), F-54000 Nancy, France
| | - Mathieu Etienne
- Université de Lorraine, CNRS, Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), F-54000 Nancy, France
| | - Alain Walcarius
- Université de Lorraine, CNRS, Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), F-54000 Nancy, France
| | - Liang Liu
- Université de Lorraine, CNRS, Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), F-54000 Nancy, France
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Maheshwari H, Vilà N, Herzog G, Walcarius A. Selective Detection of Cysteine at a Mesoporous Silica Film Electrode Functionalized with Ferrocene in the Presence of Glutathione. ChemElectroChem 2020. [DOI: 10.1002/celc.202000396] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Himanshu Maheshwari
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME) UMR 7564Université de Lorraine - CNRS 405 Rue de Vandoeuvre 54600 Villers-lès-Nancy France
| | - Neus Vilà
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME) UMR 7564Université de Lorraine - CNRS 405 Rue de Vandoeuvre 54600 Villers-lès-Nancy France
| | - Grégoire Herzog
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME) UMR 7564Université de Lorraine - CNRS 405 Rue de Vandoeuvre 54600 Villers-lès-Nancy France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME) UMR 7564Université de Lorraine - CNRS 405 Rue de Vandoeuvre 54600 Villers-lès-Nancy France
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Ahoulou S, Vilà N, Pillet S, Schaniel D, Walcarius A. Non‐covalent Immobilization of Iron‐triazole (Fe(Htrz)
3
) Molecular Mediator in Mesoporous Silica Films for the Electrochemical Detection of Hydrogen Peroxide. ELECTROANAL 2019. [DOI: 10.1002/elan.201900444] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Samuel Ahoulou
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR7564 CNRS –Université de Lorraine 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
- Université de Lorraine, CNRS, CRM2 UMR7036 54000 Nancy France
| | - Neus Vilà
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR7564 CNRS –Université de Lorraine 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
| | | | | | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR7564 CNRS –Université de Lorraine 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
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Yadav M, Ganesan V, Maiti B, Gupta R, Sonkar PK, Yadav DK, Walcarius A. Sensitive Determination of Acetaminophen in the Presence of Dopamine and Pyridoxine Facilitated by their Extent of Interaction with Single‐walled Carbon Nanotubes. ELECTROANAL 2019. [DOI: 10.1002/elan.201900178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Mamta Yadav
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi – 221005, UP India
| | - Vellaichamy Ganesan
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi – 221005, UP India
| | - Biswajit Maiti
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi – 221005, UP India
| | - Rupali Gupta
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi – 221005, UP India
| | - Piyush Kumar Sonkar
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi – 221005, UP India
| | - Dharmendra Kumar Yadav
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi – 221005, UP India
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564CNRS – Université de Lorraine 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
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Łępicka K, Pieta P, Francius G, Walcarius A, Kutner W. Structure-reactivity requirements with respect to nickel-salen based polymers for enhanced electrochemical stability. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.05.075] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Laskowski Ł, Laskowska M, Vila N, Schabikowski M, Walcarius A. Mesoporous Silica-Based Materials for Electronics-Oriented Applications. Molecules 2019; 24:molecules24132395. [PMID: 31261814 PMCID: PMC6651352 DOI: 10.3390/molecules24132395] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 06/21/2019] [Accepted: 06/21/2019] [Indexed: 11/29/2022] Open
Abstract
Electronics, and nanoelectronics in particular, represent one of the most promising branches of technology. The search for novel and more efficient materials seems to be natural here. Thus far, silicon-based devices have been monopolizing this domain. Indeed, it is justified since it allows for significant miniaturization of electronic elements by their densification in integrated circuits. Nevertheless, silicon has some restrictions. Since this material is applied in the bulk form, the miniaturization limit seems to be already reached. Moreover, smaller silicon-based elements (mainly processors) need much more energy and generate significantly more heat than their larger counterparts. In our opinion, the future belongs to nanostructured materials where a proper structure is obtained by means of bottom-up nanotechnology. A great example of a material utilizing nanostructuring is mesoporous silica, which, due to its outstanding properties, can find numerous applications in electronic devices. This focused review is devoted to the application of porous silica-based materials in electronics. We guide the reader through the development and most crucial findings of porous silica from its first synthesis in 1992 to the present. The article describes constant struggle of researchers to find better solutions to supercapacitors, lower the k value or redox-active hybrids while maintaining robust mechanical properties. Finally, the last section refers to ultra-modern applications of silica such as molecular artificial neural networks or super-dense magnetic memory storage.
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Affiliation(s)
- Łukasz Laskowski
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - Magdalena Laskowska
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland.
| | - Neus Vila
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, 405 rue de Vandoeuvre, 54600 Villers-les-Nancy, France
| | - Mateusz Schabikowski
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, 405 rue de Vandoeuvre, 54600 Villers-les-Nancy, France
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Kovalyk A, Tananaiko O, Borets A, Etienne M, Walcarius A. Voltammetric and microscopic characteristics of MnO2 and silica-MnO2hybrid films electrodeposited on the surface of planar electrodes. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.156] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Nasir T, Vodolazkaya NA, Herzog G, Walcarius A. Critical Effect of Film Thickness on Preconcentration Electroanalysis with Oriented Mesoporous Silica Modified Electrodes. ELECTROANAL 2018. [DOI: 10.1002/elan.201800533] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Tauqir Nasir
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME); UMR7564 CNRS-Université de Lorraine; 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
| | - Natalya A. Vodolazkaya
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME); UMR7564 CNRS-Université de Lorraine; 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
- Chemical Faculty; Department of Physical Chemistry; V.N. Karazin Kharkov National University; 61022 Kharkov Ukraine
| | - Grégoire Herzog
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME); UMR7564 CNRS-Université de Lorraine; 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME); UMR7564 CNRS-Université de Lorraine; 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
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40
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Abstract
Scanning electrochemical probe techniques have been widely applied for analyzing the local electrochemical activity of surfaces and interfaces. In this work, we develop a new concept of carrying out local electrochemical measurements by localizing both the electrode and the electrolyte. This is achieved through a gel probe, which is prepared by electrodepositing chitosan-gelatin gel on a microdisk electrode. It is positioned in contact with the sample surface by shear force feedback. The preliminary results indicate that the topography of the sample can be mapped by tapping the probe and recording the coordinates at a given normalized shear force signal, while the local electrochemical activity can be retrieved from local measurements with the probe touching the sample surface. The technique is denoted as scanning gel electrochemical microscopy. As compared with existing techniques, it has a major advantage of operating in air with the electrolyte immobilized in gel. This would prevent the spreading and leakage of solution on the sample surface and may lead to field applications.
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Affiliation(s)
- Liang Liu
- Université de Lorraine, CNRS, Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME) , UMR 7564 , Villers-lès-Nancy 54600 , France
| | - Mathieu Etienne
- Université de Lorraine, CNRS, Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME) , UMR 7564 , Villers-lès-Nancy 54600 , France
| | - Alain Walcarius
- Université de Lorraine, CNRS, Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME) , UMR 7564 , Villers-lès-Nancy 54600 , France
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41
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Pandey P, Singh S, Walcarius A. Palladium-Prussian blue nanoparticles; as homogeneous and heterogeneous electrocatalysts. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.07.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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42
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Zhang L, Etienne M, Vilà N, Le TXH, Kohring GW, Walcarius A. Electrocatalytic Biosynthesis using a Bucky Paper Functionalized by [Cp*Rh(bpy)Cl]+
and a Renewable Enzymatic Layer. ChemCatChem 2018. [DOI: 10.1002/cctc.201800681] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lin Zhang
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement; Université de Lorraine, CNRS; 405 rue de Vandoeuvre 54600 Villers-lès-Nancy France
| | - Mathieu Etienne
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement; Université de Lorraine, CNRS; 405 rue de Vandoeuvre 54600 Villers-lès-Nancy France
| | - Neus Vilà
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement; Université de Lorraine, CNRS; 405 rue de Vandoeuvre 54600 Villers-lès-Nancy France
| | - Thi Xuan Huong Le
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement; Université de Lorraine, CNRS; 405 rue de Vandoeuvre 54600 Villers-lès-Nancy France
| | - Gert-Wieland Kohring
- Microbiology; Saarland University; Campus, Geb. A1.5 D-66123 Saarbruecken Germany
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement; Université de Lorraine, CNRS; 405 rue de Vandoeuvre 54600 Villers-lès-Nancy France
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43
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Danhel A, Ligmajer F, Sikola T, Walcarius A, Fojta M. Electrodeposition of silver amalgam particles on ITO – Towards novel electrode material. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.12.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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44
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Zhang L, Vilà N, Walcarius A, Etienne M. Molecular and Biological Catalysts Coimmobilization on Electrode by Combining Diazonium Electrografting and Sequential Click Chemistry. ChemElectroChem 2018. [DOI: 10.1002/celc.201800258] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lin Zhang
- Université de Lorraine, CNRS; Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME); 405 rue de Vandoeuvre F-54600 Villers-les-Nancy France
| | - Neus Vilà
- Université de Lorraine, CNRS; Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME); 405 rue de Vandoeuvre F-54600 Villers-les-Nancy France
| | - Alain Walcarius
- Université de Lorraine, CNRS; Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME); 405 rue de Vandoeuvre F-54600 Villers-les-Nancy France
| | - Mathieu Etienne
- Université de Lorraine, CNRS; Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME); 405 rue de Vandoeuvre F-54600 Villers-les-Nancy France
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45
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Mierzwa M, Lamouroux E, Walcarius A, Etienne M. Porous and Transparent Metal-oxide Electrodes : Preparation Methods and Electroanalytical Application Prospects. ELECTROANAL 2018. [DOI: 10.1002/elan.201800020] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Maciej Mierzwa
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR7564 CNRS -; Université de Lorraine; 405 rue de Vandoeuvre F-54600 Villers-lès-Nancy France
- Laboratoire Structure et Réactivité des Systèmes Moléculaires Complexes (SRSMC), UMR7565 CNRS -; Université de Lorraine, BP 239; F-54506 Vandoeuvre-lès-Nancy cedex France
| | - Emmanuel Lamouroux
- Laboratoire Structure et Réactivité des Systèmes Moléculaires Complexes (SRSMC), UMR7565 CNRS -; Université de Lorraine, BP 239; F-54506 Vandoeuvre-lès-Nancy cedex France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR7564 CNRS -; Université de Lorraine; 405 rue de Vandoeuvre F-54600 Villers-lès-Nancy France
| | - Mathieu Etienne
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR7564 CNRS -; Université de Lorraine; 405 rue de Vandoeuvre F-54600 Villers-lès-Nancy France
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Abstract
An electrochemical method was developed for rapid and sensitive detection of the herbicide paraquat in aqueous samples using mesoporous silica thin film modified glassy carbon electrodes (GCE). Vertically aligned mesoporous silica thin films were deposited onto GCE by electrochemically assisted self-assembly (EASA). Cyclic voltammetry revealed effective response to the cationic analyte (while rejecting anions) thanks to the charge selectivity exhibited by the negatively charged mesoporous channels. Square wave voltametry (SWV) was then used to detect paraquat via its one electron reduction process. Influence of various experimental parameters (i.e., pH, electrolyte concentration, and nature of electrolyte anions) on sensitivity was investigated and discussed with respect to the mesopore characteristics and accumulation efficiency, pointing out the key role of charge distribution in such confined spaces on these processes. Calibration plots for paraquat concentration ranging from 10 nM to 10 μM were constructed at mesoporous silica modified GCE which were linear with increasing paraquat concentration, showing dramatically enhanced sensitivity (almost 30 times) as compared to nonmodified electrodes. Finally, real samples from Meuse River (France) spiked with paraquat, without any pretreatment (except filtration), were analyzed by SWV, revealing the possible detection of paraquat at very low concentration (10-50 nM). Limit of detection (LOD) calculated from real sample analysis was found to be 12 nM, which is well below the permissible limits of paraquat in drinking water (40-400 nM) in various countries.
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Affiliation(s)
- Tauqir Nasir
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Grégoire Herzog
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Marc Hébrant
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Christelle Despas
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Liang Liu
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
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47
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Ai Y, Smida H, Ghilane J, Vilà N, Ghanbaja J, Walcarius A, Lacroix JC. Copper Nanowires through Oriented Mesoporous Silica: A Step towards Protected and Parallel Atomic Switches. Sci Rep 2017; 7:17752. [PMID: 29259182 PMCID: PMC5736686 DOI: 10.1038/s41598-017-17048-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 11/19/2017] [Indexed: 11/24/2022] Open
Abstract
The formation of copper atomic contacts has been investigated. Copper nanowires were grown by electrochemical deposition, in the scanning electrochemical microscopy (SECM) configuration, from a platinum microelectrode to an indium tin oxide (ITO) substrate. Self-termination leaves copper filaments between the two electrodes with an atomic point contact at the ITO electrode. Histogram analysis shows that the conductance of this contact is close to, or less than, 1 G0. Atomic contacts were also fabricated on ITO electrodes covered with vertically-aligned mesoporous silica films. Scanning Transmission Electron Microscopy images show that copper filaments occupy individual isolated nanopores. Contacts generated on bare ITO break down rapidly in sodium salicylate, whereas those generated in ITO/nanopores are unaffected; the nanopores protect the copper filaments. Finally, atomic switch behaviour was obtained using these ITO and ITO/nanopores electrodes.
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Affiliation(s)
- Yong Ai
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue Jean-Antoine de Baïf, F-75205, Paris, Cedex 13, France
| | - Hassiba Smida
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue Jean-Antoine de Baïf, F-75205, Paris, Cedex 13, France
| | - Jalal Ghilane
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue Jean-Antoine de Baïf, F-75205, Paris, Cedex 13, France.
| | - Neus Vilà
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement, UMR 7564 CNRS and Université de Lorraine, 405 rue de Vandoeuvre, F-54600, Villers-lès-Nancy, France
| | - Jaafar Ghanbaja
- Institut Jean Lamour, UMR 7198 CNRS, Université de Lorraine, Parc de Saurupt, CS 50840, F-54011, Nancy, France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement, UMR 7564 CNRS and Université de Lorraine, 405 rue de Vandoeuvre, F-54600, Villers-lès-Nancy, France
| | - Jean Christophe Lacroix
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue Jean-Antoine de Baïf, F-75205, Paris, Cedex 13, France.
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48
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Le Ferrec M, Mellier C, Boukhechba F, Le Corroller T, Guenoun D, Fayon F, Montouillout V, Despas C, Walcarius A, Massiot D, Lefèvre FX, Robic C, Scimeca JC, Bouler JM, Bujoli B. Design and properties of a novel radiopaque injectable apatitic calcium phosphate cement, suitable for image-guided implantation. J Biomed Mater Res B Appl Biomater 2017; 106:2786-2795. [PMID: 29226553 DOI: 10.1002/jbm.b.34059] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 11/09/2017] [Accepted: 11/18/2017] [Indexed: 12/12/2022]
Abstract
An injectable purely apatitic calcium phosphate cement (CPC) was successfully combined to a water-soluble radiopaque agent (i.e., Xenetix® ), to result in an optimized composition that was found to be as satisfactory as poly(methyl methacrylate) (PMMA) formulations used for vertebroplasty, in terms of radiopacity, texture and injectability. For that purpose, the Xenetix dosage in the cement paste was optimized by injection of the radiopaque CPC in human cadaveric vertebrae under classical PMMA vertebroplasty conditions, performed by interventional radiologists familiar with this surgical procedure. When present in the cement paste up to 70 mg I mL-1 , Xenetix did not influence the injectability, cohesion, and setting time of the resulting composite. After hardening of the material, the same observation was made regarding the microstructure, mechanical strength and alpha-tricalcium phosphate to calcium deficient apatite transformation rate. Upon implantation in bone in a small animal model (rat), the biocompatibility of the Xenetix-containing CPC was evidenced. Moreover, an almost quantitative release of the contrast agent was found to occur rapidly, on the basis of in vitro static and dynamic quantitative studies simulating in vivo implantation. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2786-2795, 2018.
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Affiliation(s)
- Myriam Le Ferrec
- Graftys SA, Eiffel Park, Bâtiment D, Pôle d'activités d'Aix en Provence, 13854 Aix en Provence CEDEX 3, France
| | - Charlotte Mellier
- Graftys SA, Eiffel Park, Bâtiment D, Pôle d'activités d'Aix en Provence, 13854 Aix en Provence CEDEX 3, France
| | - Florian Boukhechba
- Graftys SA, Eiffel Park, Bâtiment D, Pôle d'activités d'Aix en Provence, 13854 Aix en Provence CEDEX 3, France
| | - Thomas Le Corroller
- Hôpitaux Sud - Hôpital Sainte-Marguerite, CHU APHM, 13274, Marseille Cedex 9, France
| | - Daphné Guenoun
- Hôpitaux Sud - Hôpital Sainte-Marguerite, CHU APHM, 13274, Marseille Cedex 9, France
| | - Franck Fayon
- CNRS, UPR 3079, CEMHTI, 45071, Orléans Cedex 02, France
| | | | - Christelle Despas
- Université de Lorraine, CNRS, UMR 7564, LCPME, 54600, Villers-lès-Nancy, France
| | - Alain Walcarius
- Université de Lorraine, CNRS, UMR 7564, LCPME, 54600, Villers-lès-Nancy, France
| | | | - François-Xavier Lefèvre
- Université de Nantes, CNRS, UMR 6230, CEISAM, UFR Sciences et Techniques, BP 92208, 44322, NANTES Cedex 3, France
| | | | - Jean-Claude Scimeca
- Université Côte d'Azur, CNRS, Inserm, iBV, UMR 7277, Tour Pasteur, UFR Médecine, 06107, Nice Cedex 02, France
| | - Jean-Michel Bouler
- Université de Nantes, CNRS, UMR 6230, CEISAM, UFR Sciences et Techniques, BP 92208, 44322, NANTES Cedex 3, France
| | - Bruno Bujoli
- Université de Nantes, CNRS, UMR 6230, CEISAM, UFR Sciences et Techniques, BP 92208, 44322, NANTES Cedex 3, France
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49
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Sautrey G, Brié A, Gantzer C, Walcarius A. MS2 and Qβ bacteriophages reveal the contribution of surface hydrophobicity on the mobility of non-enveloped icosahedral viruses in SDS-based capillary zone electrophoresis. Electrophoresis 2017; 39:377-385. [PMID: 29072777 DOI: 10.1002/elps.201700352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/10/2017] [Accepted: 10/13/2017] [Indexed: 01/13/2023]
Abstract
SDS is commonly employed as BGE additive in CZE analysis of non-enveloped icosahedral viruses. But the way by which SDS interacts with the surface of such viruses remains to date poorly known, making complicate to understand their behavior during a run. In this article, two related bacteriophages, MS2 and Qβ, are used as model to investigate the migration mechanism of non-enveloped icosahedral viruses in SDS-based CZE. Both phages are characterized by similar size and surface charge but significantly different surface hydrophobicity (Qβ > MS2, where '>' means 'more hydrophobic than'). By comparing their electrophoretic mobility in the presence or not of SDS on both sides of the CMC, we show that surface hydrophobicity of phages is a key factor influencing their mobility and that SDS-virus association is driven by hydrophobic interactions at the surface of virions. The CZE analyses of heated MS2 particles, which over-express hydrophobic domains at their surface, confirm this finding. The correlations between the present results and others from the literature suggest that the proposed mechanism might not be exclusive to the bacteriophages examined here.
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Affiliation(s)
- Guillaume Sautrey
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, Villers-lès-Nancy, France
| | - Adrien Brié
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, Villers-lès-Nancy, France
| | - Christophe Gantzer
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, Villers-lès-Nancy, France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, Villers-lès-Nancy, France
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50
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Ingrosso F, Ruiz-Lopez M, Walcarius A. Physical Chemistry in France. Chemphyschem 2017; 18:2558-2559. [PMID: 28930376 DOI: 10.1002/cphc.201700907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Francesca Ingrosso
- SRSMC, UMR7565 CNRS-Université de Lorraine, Boulevard des Aiguilettes, BP 70239, 54506, Vandoeuvre-lès-Nancy, France
| | - Manuel Ruiz-Lopez
- SRSMC, UMR7565 CNRS-Université de Lorraine, Boulevard des Aiguilettes, BP 70239, 54506, Vandoeuvre-lès-Nancy, France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement, UMR 7564 CNRS-Université de Lorraine, 405 Rue de Vandoeuvre, 54600, Villers-lès-Nancy, France
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