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He Y, Khan MA, Drake AD, Ladipo F, Rankin SE, Knutson BL. Nanoconfinement Effects on the Transport of Redox Probes in Ionic Liquid-Loaded Mesoporous Silica Thin Films. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuxin He
- Department of Chemical and Materials Engineering, University of Kentucky, 177 F.P. Anderson Tower, Lexington 40506, Kentucky, United States
| | - M. Arif Khan
- Department of Chemical and Materials Engineering, University of Kentucky, 177 F.P. Anderson Tower, Lexington 40506, Kentucky, United States
| | - Andrew D. Drake
- Department of Chemical and Materials Engineering, University of Kentucky, 177 F.P. Anderson Tower, Lexington 40506, Kentucky, United States
| | - Folami Ladipo
- Department of Chemistry, University of Kentucky, 125 Chemistry/Physics Building, Lexington, Kentucky 40506, United States
| | - Stephen E. Rankin
- Department of Chemical and Materials Engineering, University of Kentucky, 177 F.P. Anderson Tower, Lexington 40506, Kentucky, United States
| | - Barbara L. Knutson
- Department of Chemical and Materials Engineering, University of Kentucky, 177 F.P. Anderson Tower, Lexington 40506, Kentucky, United States
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2
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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] [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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3
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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] [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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4
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Synthesis of Vertically Aligned Porous Silica Thin Films Functionalized by Silver Ions. Int J Mol Sci 2021; 22:ijms22147505. [PMID: 34299121 PMCID: PMC8306079 DOI: 10.3390/ijms22147505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/30/2021] [Accepted: 07/09/2021] [Indexed: 11/28/2022] Open
Abstract
In this work, we have developed a chemical procedure enabling the preparation of highly ordered and vertically aligned mesoporous silica films containing selected contents of silver ions bonded inside the mesopore channels via anchoring propyl-carboxyl units. The procedure involves the electrochemically assisted self-assembly co-condensation of tetraethoxysilane and (3-cyanopropyl)triethoxysilane in the presence of cetyltrimethylammonium bromide as a surfactant, the subsequent hydrolysis of cyano groups into carboxylate ones, followed by their complexation with silver ions. The output materials have been electrochemically characterized with regard to the synthesis effectiveness in order to confirm and quantify the presence of the silver ions in the material. The mesostructure has been observed by transmission electron microscopy. We have pointed out that it is possible to finely tune the functionalization level by controlling the co-condensation procedure, notably the concentration of (3-cyanopropyl)triethoxysilane in the synthesis medium.
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Yan F, Luo T, Jin Q, Zhou H, Sailjoi A, Dong G, Liu J, Tang W. Tailoring molecular permeability of vertically-ordered mesoporous silica-nanochannel films on graphene for selectively enhanced determination of dihydroxybenzene isomers in environmental water samples. JOURNAL OF HAZARDOUS MATERIALS 2021; 410:124636. [PMID: 33248825 DOI: 10.1016/j.jhazmat.2020.124636] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 11/17/2020] [Accepted: 11/17/2020] [Indexed: 05/21/2023]
Abstract
Herein we demonstrate a simple and rapid electrochemical method for selectively enhanced determination of catechol (CC) or hydroquinone (HQ) isomers in environmental water samples by tailoring the molecular permeability of vertically-ordered mesoporous silica-nanochannel films on electrochemically reduced graphene oxide (VMSF/ErGO). Such VMSF/ErGO composite film was fabricated on the gold electrode (AuE) surface using electrochemically assisted self-assembly approach. The as-prepared electrodes with surfactant micelles (SM) template inside silica nanochannels, designed as SM/VMSF/ErGO/AuE, possess hydrophobic hydrocarbon cores and show preferential response to CC via hydrophobic effect. After removing SM from silica nanochannels, the obtained VMSF/ErGO/AuE displays more sensitive response to HQ, which is due to the hydrogen bond effect between the silanol groups of silica walls and HQ. Given the potential-resolved and high electrocatalytic ability of ErGO, and molecular permeability and anti-fouling ability of VMSF, these two present sensors could detect CC and HQ in lake water with a low limit of detection (18 nM for CC and 16 nM for HQ), and a high sensitivity (0.33 μA/μM for CC and 0.37 μA/μM for HQ), without complicated sample pretreatment. Moreover, the proposed sensors provide a convenient, rapid and economic way for direct analysis of environmental water samples, exhibiting excellent long-term stability.
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Affiliation(s)
- Fei Yan
- Department of Chemistry, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou 310018, PR China
| | - Tao Luo
- Department of Gastrointestinal Surgery, Guangxi Clinical Research Center for Colorectal Cancer, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Nanning 530021, PR China
| | - Qifan Jin
- Department of Chemistry, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou 310018, PR China
| | - Huaxu Zhou
- Department of Chemistry, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou 310018, PR China
| | - Ajabkhan Sailjoi
- Department of Chemistry, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou 310018, PR China
| | - Guotao Dong
- Yellow River Conservancy Commission, Yellow River Institute of Hydraulic Research, Zhengzhou 450003, PR China
| | - Jiyang Liu
- Department of Chemistry, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou 310018, PR China.
| | - Weizhong Tang
- Department of Gastrointestinal Surgery, Guangxi Clinical Research Center for Colorectal Cancer, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Nanning 530021, PR China.
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6
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Wang M, Lin J, Gong J, Ma M, Tang H, Liu J, Yan F. Rapid and sensitive determination of doxorubicin in human whole blood by vertically-ordered mesoporous silica film modified electrochemically pretreated glassy carbon electrodes. RSC Adv 2021; 11:9021-9028. [PMID: 35423372 PMCID: PMC8695326 DOI: 10.1039/d0ra10000e] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 02/08/2021] [Indexed: 12/15/2022] Open
Abstract
Direct and accurate detection of doxorubicin (DOX) in unprocessed human whole blood is of vital importance in medical diagnosis and monitoring. In this work, we demonstrate the utilization of electrochemically pretreated glassy carbon electrodes (p-GCE) modified with vertically-ordered mesoporous silica films (VMSF) for rapid and sensitive electrochemical detection of DOX. The electrochemically pretreated process is a simple, cost-effective and environmentally friendly approach for improving interface catalytic properties and introducing oxygen-containing groups into the GCE surface, which could be suitable for stably growing VMSF without any adhesive layer simultaneously retaining the underlying electrode activity. Benefiting from the highly sensitive electrode substrate of p-GCE and electrostatic preconcentration effect of VMSF, the present VMSF/p-GCE sensor was able to determine DOX with an ultrahigh sensitivity (23.94 μA μM-1) and a relatively low limit of detection (0.2 nM) and a rather wide linear range (0.5 nM to 23 μM). Furthermore, direct and reliable electrochemical detection of DOX in human whole blood without complicated sample pretreatments was achieved owing to the excellent anti-fouling and anti-interference ability of VMSF.
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Affiliation(s)
- Meifang Wang
- Department of Chemistry, Zhejiang Sci-Tech University 928 Second Avenue, Xiasha Higher Education Zone Hangzhou 310018 PR China
| | - Jing Lin
- The First Affiliated Hospital of Guangxi University of Chinese Medicine Nanning 530023 China
| | - Jiawei Gong
- Department of Chemistry, Zhejiang Sci-Tech University 928 Second Avenue, Xiasha Higher Education Zone Hangzhou 310018 PR China
| | - Mingchen Ma
- Guangxi University of Chinese Medicine Nanning 530020 China
| | - Hongliang Tang
- Affiliated Fangchenggang Hospital, Guangxi University of Chinese Medicine Fangchenggang 538001 China
| | - Jiyang Liu
- Department of Chemistry, Zhejiang Sci-Tech University 928 Second Avenue, Xiasha Higher Education Zone Hangzhou 310018 PR China
| | - Fei Yan
- Department of Chemistry, Zhejiang Sci-Tech University 928 Second Avenue, Xiasha Higher Education Zone Hangzhou 310018 PR China
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7
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Xuan L, Liao W, Wang M, Zhou H, Ding Y, Yan F, Liu J, Tang H, Xi F. Integration of vertically-ordered mesoporous silica-nanochannel film with electro-activated glassy carbon electrode for improved electroanalysis in complex samples. Talanta 2020; 225:122066. [PMID: 33592785 DOI: 10.1016/j.talanta.2020.122066] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/16/2020] [Accepted: 12/23/2020] [Indexed: 10/22/2022]
Abstract
Vertically-ordered mesoporous silica-nanochannel films (VMSF) with highly ordered nanochannels, uniform and adjustable pore size, ultra-thin thickness, and high porosity, have attracted considerable attention in analysis, molecular separation, catalysis, and nanomaterial synthesis. However, their widespread applications in practical electrochemical sensing are largely limited by the poor adhesion to common electrode materials, especially the lack of highly active substrate electrode to equip mechanically stable VMSF. Herein, we report a facile strategy to fabricate VMSF on widely used sensing electrodes without the use of any chemical adhesive for developing superior VMSF based electrochemical sensors. We demonstrate that simple electrochemical polarization (anodic polarization and subsequent cathodic reduction) to activate glassy carbon electrode (GCE) can generate a suitable surface environment allowing direct growth of stable VMSF on such pre-activated GCE (p-GCE) via electrochemically assisted self-assembly (EASA). Compared to traditional VMSF electrodes with ITO or organosilane grafted GCE as substrate, the developed VMSF/p-GCE exhibits much higher electrochemical response to four redox biomarkers (norepinephrine, dopamine, tryptophan, and uric acid). In-depth insights on mechanisms of the high electrochemical activity and incorporation stability of VMSF/p-GCE are made. We further demonstrate the VMSF/p-GCE can be employed to detect dopamine in real serum samples with exceptional sensitivity, low detection potential, as well as superior anti-interference and anti-fouling performance. In addition, high selectivity is realized as the common co-existing interference substances (ascorbic acid-AA and uric acid-UA) do not interfere with the detection.
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Affiliation(s)
- Lingli Xuan
- Department of Chemistry, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou, 310018, PR China
| | - Wenyan Liao
- Affiliated International Zhuang Medicine Hospital, Guangxi University of Chinese Medicine, Nanning, 530023, PR China
| | - Meifang Wang
- Department of Chemistry, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou, 310018, PR China
| | - Huaxu Zhou
- Department of Chemistry, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou, 310018, PR China
| | - Yao Ding
- Guangxi University of Chinese Medicine, Nanning, 530020, PR China
| | - Fei Yan
- Department of Chemistry, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou, 310018, PR China.
| | - Jiyang Liu
- Department of Chemistry, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou, 310018, PR China
| | - Hongliang Tang
- The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, 530023, PR China.
| | - Fengna Xi
- Department of Chemistry, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou, 310018, PR China.
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8
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Liu X, Li H, Zhou H, Liu J, Li L, Liu J, Yan F, Luo T. Direct electrochemical detection of 4-aminophenol in pharmaceuticals using ITO electrodes modified with vertically-ordered mesoporous silica-nanochannel films. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114568] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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10
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Ma X, Liao W, Zhou H, Tong Y, Yan F, Tang H, Liu J. Highly sensitive detection of rutin in pharmaceuticals and human serum using ITO electrodes modified with vertically-ordered mesoporous silica–graphene nanocomposite films. J Mater Chem B 2020; 8:10630-10636. [DOI: 10.1039/d0tb01996h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A vertically-ordered silica–graphene nanocomposite film modified transparent ITO electrode was prepared by a one-step electrodeposition method for antifouling detection of rutin in pharmaceuticals and human serum.
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Affiliation(s)
- Xinyu Ma
- Department of Chemistry
- Zhejiang Sci-Tech University
- 928 Second Avenue
- Xiasha Higher Education Zone
- Hangzhou
| | - Wenyan Liao
- Affiliated International Zhuang Medicine Hospital, Guangxi University of Chinese Medicine
- Nanning
- P. R. China
| | - Huaxu Zhou
- Department of Chemistry
- Zhejiang Sci-Tech University
- 928 Second Avenue
- Xiasha Higher Education Zone
- Hangzhou
| | - Yun Tong
- Department of Chemistry
- Zhejiang Sci-Tech University
- 928 Second Avenue
- Xiasha Higher Education Zone
- Hangzhou
| | - Fei Yan
- Department of Chemistry
- Zhejiang Sci-Tech University
- 928 Second Avenue
- Xiasha Higher Education Zone
- Hangzhou
| | - Hongliang Tang
- The First Affiliated Hospital of Guangxi University of Chinese Medicine
- Nanning
- P. R. China
| | - Jiyang Liu
- Department of Chemistry
- Zhejiang Sci-Tech University
- 928 Second Avenue
- Xiasha Higher Education Zone
- Hangzhou
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11
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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] [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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12
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Lu L, Zhou L, Chen J, Yan F, Liu J, Dong X, Xi F, Chen P. Nanochannel-Confined Graphene Quantum Dots for Ultrasensitive Electrochemical Analysis of Complex Samples. ACS NANO 2018; 12:12673-12681. [PMID: 30485066 DOI: 10.1021/acsnano.8b07564] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Herein, we present an electrochemical sensing platform based on nanochannel-confined graphene quantum dots (GQDs) that is able to detect a spectrum of small analytes in complex samples with high sensitivity. Vertically ordered mesoporous silica-nanochannel film (VMSF) is decorated on the supporting electrode, conferring the electrode with excellent antifouling and anti-interference properties through steric exclusion and electrostatic repulsion. The synthesized GQDs with different functionalities are confined in the nanochannels of VMSF through electrophoresis, serving as the recognition element and signal amplifier. Without the usual need of tedious pretreatment, ultrasensitive and fast detection of Hg2+, Cu2+, and Cd2+ (with limits of detection (LOD) of 9.8 pM, 8.3 pM, and 4.3 nM, respectively) and dopamine (LOD of 120 nM) in complex food (Hg2+-contaminated seafood), environmental (soil-leaching solution), and biological (serum) samples are realized as proof-of-concept demonstrations.
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Affiliation(s)
- Lili Lu
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Lin Zhou
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Jie Chen
- School of Chemical & Biomedical Engineering , Nanyang Technological University , 70 Nanyang Drive , Singapore 637457
| | - Fei Yan
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Jiyang Liu
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Xiaoping Dong
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Fengna Xi
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Peng Chen
- School of Chemical & Biomedical Engineering , Nanyang Technological University , 70 Nanyang Drive , Singapore 637457
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Liu J, Cheng H, He D, He X, Wang K, Liu Q, Zhao S, Yang X. Label-Free Homogeneous Electrochemical Sensing Platform for Protein Kinase Assay Based on Carboxypeptidase Y-Assisted Peptide Cleavage and Vertically Ordered Mesoporous Silica Films. Anal Chem 2017; 89:9062-9068. [DOI: 10.1021/acs.analchem.7b01739] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jinquan Liu
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Biology, College of Chemistry and Chemical
Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule
Engineering of Hunan Province, Changsha 410082, China
| | - Hong Cheng
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Biology, College of Chemistry and Chemical
Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule
Engineering of Hunan Province, Changsha 410082, China
| | - Dinggeng He
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Biology, College of Chemistry and Chemical
Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule
Engineering of Hunan Province, Changsha 410082, China
| | - Xiaoxiao He
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Biology, College of Chemistry and Chemical
Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule
Engineering of Hunan Province, Changsha 410082, China
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Biology, College of Chemistry and Chemical
Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule
Engineering of Hunan Province, Changsha 410082, China
| | - Qiaoqiao Liu
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Biology, College of Chemistry and Chemical
Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule
Engineering of Hunan Province, Changsha 410082, China
| | - Shuaiqi Zhao
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Biology, College of Chemistry and Chemical
Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule
Engineering of Hunan Province, Changsha 410082, China
| | - Xudong Yang
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Biology, College of Chemistry and Chemical
Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule
Engineering of Hunan Province, Changsha 410082, China
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14
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Gamero-Quijano A, Karman C, Vilà N, Herzog G, Walcarius A. Vertically Aligned and Ordered One-Dimensional Mesoscale Polyaniline. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:4224-4234. [PMID: 28398065 DOI: 10.1021/acs.langmuir.7b00892] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The growth of vertically aligned and ordered polyaniline nanofilaments is controlled by potentiostatic polymerization through hexagonally packed and oriented mesoporous silica films. In such small pore template (2 nm in diameter), quasi-single PANI chains are likely to be produced. From chronoamperometric experiments and using films of various thicknesses (100-200 nm) it is possible to evidence the electropolymerization transients, wherein each stage of polymerization (induction period, growth, and overgrowth of polyaniline on mesoporous silica films) is clearly identified. The advantageous effect of mesostructured silica thin films as hard templates for the generation of isolated polyaniline nanofilaments is demonstrated from enhancement of the reversibility between the conductive and the nonconductive states of polyaniline and the higher electroactive surface areas displayed for all mesoporous silica/PANI composites. The possibility to control and tailor the growth of conducting polymer nanofilaments offers numerous opportunities for applications in various fields including energy, sensors and biosensors, photovoltaics, nanophotonics, or nanoelectronics.
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Affiliation(s)
- Alonso Gamero-Quijano
- CNRS-Université de Lorraine, LCPME UMR 7564 , 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Cheryl Karman
- CNRS-Université de Lorraine, LCPME UMR 7564 , 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Neus Vilà
- CNRS-Université de Lorraine, LCPME UMR 7564 , 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Grégoire Herzog
- CNRS-Université de Lorraine, LCPME UMR 7564 , 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Alain Walcarius
- CNRS-Université de Lorraine, LCPME UMR 7564 , 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
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15
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Giordano G, Vilà N, Aubert E, Ghanbaja J, Walcarius A. Multi-layered, vertically-aligned and functionalized mesoporous silica films generated by sequential electrochemically assisted self-assembly. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.03.220] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Yan F, Su B. Tailoring Molecular Permeability of Nanochannel-Micelle Membranes for Electrochemical Analysis of Antioxidants in Fruit Juices without Sample Treatment. Anal Chem 2016; 88:11001-11006. [DOI: 10.1021/acs.analchem.6b02823] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Fei Yan
- Institute of Analytical Chemistry,
Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Bin Su
- Institute of Analytical Chemistry,
Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
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17
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Zheng W, Yan F, Su B. Electrochemical determination of chloramphenicol in milk and honey using vertically ordered silica mesochannels and surfactant micelles as the extraction and anti-fouling element. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.04.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Clark Wooten MK, Koganti VR, Zhou S, Rankin SE, Knutson BL. Synthesis and Nanofiltration Membrane Performance of Oriented Mesoporous Silica Thin Films on Macroporous Supports. ACS APPLIED MATERIALS & INTERFACES 2016; 8:21806-21815. [PMID: 27479791 DOI: 10.1021/acsami.6b06765] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Silica thin films with accessible hexagonal close-packed (HCP) pores have been deposited on macroporous supports to achieve composite nanofiltration membranes. The properties of these pore channels have been characterized through solvent flux and solute diffusion experiments. A chemically neutral surface (provided by a cross-linked layer of P123 copolymer) for silica thin film synthesis on the alumina macroporous support promotes the alignment of HCP channels vertical to the substrate, where the mesopore templating agent is block copolymer P123 (poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)). Vertical pore alignment is achieved for thin films (less than ∼100 nm) on a neutral surface and by sandwiching thicker films (∼240 nm) between two chemically neutral surfaces. Solvent flux through the composite membranes is consistent with accessible 10 nm diameter pores. Size selectivity of the membranes is characterized from the permeability of fluorescently tagged solutes (ranging from 4000 to 70 000 Da), where a size cut off occurs at 69 000 Da for the model protein bovine serum albumin. These permeability studies of the nanofiltration membranes serve to demonstrate solute transport in oriented silica thin film membranes and also highlight their versatility for membrane-based separations.
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Affiliation(s)
- M Kaitlyn Clark Wooten
- Department of Chemical and Materials Engineering, University of Kentucky 177 F. Paul Anderson Tower, Lexington, Kentucky 40506-0046, United States
| | - Venkat R Koganti
- Department of Chemical and Materials Engineering, University of Kentucky 177 F. Paul Anderson Tower, Lexington, Kentucky 40506-0046, United States
| | - Shanshan Zhou
- Department of Chemical and Materials Engineering, University of Kentucky 177 F. Paul Anderson Tower, Lexington, Kentucky 40506-0046, United States
| | - Stephen E Rankin
- Department of Chemical and Materials Engineering, University of Kentucky 177 F. Paul Anderson Tower, Lexington, Kentucky 40506-0046, United States
| | - Barbara L Knutson
- Department of Chemical and Materials Engineering, University of Kentucky 177 F. Paul Anderson Tower, Lexington, Kentucky 40506-0046, United States
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19
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Karman C, Vilà N, Walcarius A. Amplified Charge Transfer for Anionic Redox Probes through Oriented Mesoporous Silica Thin Films. ChemElectroChem 2016. [DOI: 10.1002/celc.201600303] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cheryl Karman
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564, CNRS-; Université de Lorraine; 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
| | - Neus Vilà
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564, CNRS-; Université de Lorraine; 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564, CNRS-; Université de Lorraine; 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
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20
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Nasir T, Zhang L, Vilà N, Herzog G, Walcarius A. Electrografting of 3-Aminopropyltriethoxysilane on a Glassy Carbon Electrode for the Improved Adhesion of Vertically Oriented Mesoporous Silica Thin Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4323-4332. [PMID: 27065214 DOI: 10.1021/acs.langmuir.6b00798] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Vertically oriented mesoporous silica has proven to be of interest for applications in a variety of fields (e.g., electroanalysis, energy, and nanotechnology). Although glassy carbon is widely used as an electrode material, the adherence of silica deposits is rather poor, causing mechanical instability. A solution to improve the adhesion of mesoporous silica films onto glassy carbon electrodes without compromising the vertical orientation and the order of the mesopores will greatly contribute to the use of this kind of modified carbon electrode. We propose here the electrografting of 3-aminopropyltriethoxysilane on glassy carbon as a molecular glue to improve the mechanical stability of the silica film on the electrode surface without disturbing the vertical orientation and the order of the mesoporous silica obtained by electrochemically assisted self-assembly. These findings are supported by a series of surface chemistry techniques such as X-ray photoelectron spectroscopy, scanning and transmission electron microscopy, and cyclic voltammetry. Finally, methylviologen was used as a model redox probe to investigate the cathodic potential region of both glassy carbon and indium tin oxide electrodes modified with mesoporous silica in order to demonstrate further the interest in the approach developed here.
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Affiliation(s)
- Tauqir Nasir
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564, CNRS, Université de Lorraine , 405 rue de Vandoeuvre, Villers-lès-Nancy F-54600, France
| | - Lin Zhang
- Laboratoire de Chimie Physique et Microbiologie pour 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 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 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 l'Environnement (LCPME), UMR 7564, CNRS, Université de Lorraine , 405 rue de Vandoeuvre, Villers-lès-Nancy F-54600, France
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21
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Yan F, Lin X, Su B. Vertically ordered silica mesochannel films: electrochemistry and analytical applications. Analyst 2016; 141:3482-95. [DOI: 10.1039/c6an00146g] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Vertically-aligned mesoporous silica films were used for electrochemical sensing and molecular separation in terms of molecular size, charge and lipophilicity.
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Affiliation(s)
- Fei Yan
- Institute of Microanalytical Systems
- Department of Chemistry
- Zhejiang University
- 310058 Hangzhou
- China
| | - Xingyu Lin
- Institute of Microanalytical Systems
- Department of Chemistry
- Zhejiang University
- 310058 Hangzhou
- China
| | - Bin Su
- Institute of Microanalytical Systems
- Department of Chemistry
- Zhejiang University
- 310058 Hangzhou
- China
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22
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Lin X, Yang Q, Ding L, Su B. Ultrathin Silica Membranes with Highly Ordered and Perpendicular Nanochannels for Precise and Fast Molecular Separation. ACS NANO 2015; 9:11266-77. [PMID: 26458217 DOI: 10.1021/acsnano.5b04887] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Membranes with the ability of molecular/ionic separation offer potential in many processes ranging from molecular purification/sensing, to nanofluidics and to mimicking biological membranes. In this work, we report the preparation of a perforative free-standing ultrathin silica membrane consisting of straight and parallel nanochannels with a uniform size (∼2.3 nm) for precise and fast molecular separation. Due to its small and uniform channel size, the membrane exhibits a precise selectivity toward molecules based on size and charge, which can be tuned by ionic strength, pH or surface modification. Furthermore, the ultrasmall thickness (10-120 nm), vertically aligned channels, and high porosity (4.0 × 10(12) pores cm(-2)) give rise to a significantly high molecular transport rate. In addition, the membrane also displays excellent stability and can be consecutively reused for a month after washing or calcination. More importantly, the membrane fabrication is convenient, inexpensive, and does not rely on sophisticated facilities or conditions, providing potential applications in both separation science and micro/nanofluidic chip technologies.
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Affiliation(s)
- Xingyu Lin
- Institute of Microanalytical Systems, Department of Chemistry & Centre for Chemistry of High-Performance and Novel Materials, Zhejiang University , Hangzhou 310058, P. R. China
| | - Qian Yang
- Institute of Microanalytical Systems, Department of Chemistry & Centre for Chemistry of High-Performance and Novel Materials, Zhejiang University , Hangzhou 310058, P. R. China
| | - Longhua Ding
- Institute of Microanalytical Systems, Department of Chemistry & Centre for Chemistry of High-Performance and Novel Materials, Zhejiang University , Hangzhou 310058, P. R. China
| | - Bin Su
- Institute of Microanalytical Systems, Department of Chemistry & Centre for Chemistry of High-Performance and Novel Materials, Zhejiang University , Hangzhou 310058, P. R. China
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23
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Yan F, He Y, Ding L, Su B. Highly Ordered Binary Assembly of Silica Mesochannels and Surfactant Micelles for Extraction and Electrochemical Analysis of Trace Nitroaromatic Explosives and Pesticides. Anal Chem 2015; 87:4436-41. [DOI: 10.1021/acs.analchem.5b00433] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Fei Yan
- Institute of Microanalytical
Systems, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yayun He
- Institute of Microanalytical
Systems, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Longhua Ding
- Institute of Microanalytical
Systems, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Bin Su
- Institute of Microanalytical
Systems, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
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24
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Despas C, Vodolazkaya NA, Ghanbaja J, Walcarius A. Preparation of ordered and oriented mesoporous silica thin films bearing octyl or hexadecyl groups by electrochemically assisted self-assembly and evaluation of their transport properties. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-014-2726-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Robertson C, Beanland R, Boden SA, Hector AL, Kashtiban RJ, Sloan J, Smith DC, Walcarius A. Ordered mesoporous silica films with pores oriented perpendicular to a titanium nitride substrate. Phys Chem Chem Phys 2015; 17:4763-70. [DOI: 10.1039/c4cp05730a] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thin mesoporous films are demonstrated with pores oriented perpendicular to a titanium nitride growth surface.
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Affiliation(s)
| | | | - Stuart A. Boden
- Electronics and Computer Science
- University of Southampton
- Southampton SO17 1BJ
- UK
| | | | | | - Jeremy Sloan
- Department of Physics
- University of Warwick
- Coventry CV4 7AL
- UK
| | - David C. Smith
- Physics and Astronomy
- University of Southampton
- Southampton SO17 1BJ
- UK
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement
- UMR 7564
- CNRS-Université de Lorraine
- 54600 Villers-les-Nancy
- France
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26
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Abstract
Arrays of silica nanochannels (ASNCs) with various nanochannel lengths and particle aspect ratios are reported.
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Affiliation(s)
- Nicola Zucchetto
- Institute of Chemistry and Biological Chemistry
- Zürich University of Applied Sciences
- CH-8820 Wädenswil
- Switzerland
| | - Dominik Brühwiler
- Institute of Chemistry and Biological Chemistry
- Zürich University of Applied Sciences
- CH-8820 Wädenswil
- Switzerland
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27
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Yan F, Zheng W, Yao L, Su B. Direct electrochemical analysis in complex samples using ITO electrodes modified with permselective membranes consisting of vertically ordered silica mesochannels and micelles. Chem Commun (Camb) 2015; 51:17736-9. [DOI: 10.1039/c5cc08425c] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Herein we report a simple and cost-effective method for direct electrochemical detection of redox-active small organic analytes in complex media, such as soil dispersions, human serum and milk, without sample pre-treatment.
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Affiliation(s)
- Fei Yan
- Institute of Microanalytical Systems
- Department of Chemistry & Center for Chemistry of High-Performance and Novel Materials
- Zhejiang University
- Hangzhou 310058
- China
| | - Wenjing Zheng
- Institute of Microanalytical Systems
- Department of Chemistry & Center for Chemistry of High-Performance and Novel Materials
- Zhejiang University
- Hangzhou 310058
- China
| | - Lina Yao
- Institute of Microanalytical Systems
- Department of Chemistry & Center for Chemistry of High-Performance and Novel Materials
- Zhejiang University
- Hangzhou 310058
- China
| | - Bin Su
- Institute of Microanalytical Systems
- Department of Chemistry & Center for Chemistry of High-Performance and Novel Materials
- Zhejiang University
- Hangzhou 310058
- China
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28
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Mousty C, Walcarius A. Electrochemically assisted deposition by local pH tuning: a versatile tool to generate ordered mesoporous silica thin films and layered double hydroxide materials. J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2570-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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