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Kim MY, Lee JW, Park DJ, Lee JY, Myung NV, Kwon SH, Lee KH. Highly stable potentiometric sensor with reduced graphene oxide aerogel as a solid contact for detection of nitrate and calcium ions. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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2
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Shen T, Zhao Z, Zhong Q, Qin Y, Zhang P, Guo ZX. Preparation of graphene/Au aerogel film through the hydrothermal process and application for H 2O 2 detection. RSC Adv 2019; 9:13042-13047. [PMID: 35520755 PMCID: PMC9063788 DOI: 10.1039/c9ra00516a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 04/13/2019] [Indexed: 11/21/2022] Open
Abstract
In this paper, one-step preparation of graphene/gold nanoparticle hydrogel film through the hydrothermal method is reported. The hydrogel film could be formed on a glass substrate under hydrothermal conditions, and upon freeze-drying, the aerogel film of 40 μm thickness with satisfying flexibility and strength is obtained. The aerogel composite film is characterized by scanning/transmission electron microscopy, X-ray diffraction, Raman spectroscopy and X-ray photoelectron spectroscopy. Moreover, the aerogel film is directly used as the electrochemical electrode for sensing H2O2, and exhibits good performance with a broad linear range, low detection limit and excellent selectivity. This work provides a route for the fabrication of graphene film material with wide potential in various aspects.
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Affiliation(s)
- Ting Shen
- Department of Chemistry, Renmin University of China Beijing 100872 China
| | - Zhiyong Zhao
- Department of Chemistry, Renmin University of China Beijing 100872 China
| | - Qishi Zhong
- Department of Chemistry, Renmin University of China Beijing 100872 China
| | - Yujun Qin
- Department of Chemistry, Renmin University of China Beijing 100872 China
| | - Pu Zhang
- Department of Chemistry, Renmin University of China Beijing 100872 China
| | - Zhi-Xin Guo
- Department of Chemistry, Renmin University of China Beijing 100872 China
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3
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Three-dimensional PEDOT composite based electrochemical sensor for sensitive detection of chlorophenol. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.01.055] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Emran MY, Shenashen MA, Abdelwahab AA, Khalifa H, Mekawy M, Akhtar N, Abdelmottaleb M, El-Safty SA. Design of hierarchical electrocatalytic mediator for one step, selective screening of biomolecules in biological fluid samples. J APPL ELECTROCHEM 2018. [DOI: 10.1007/s10800-018-1175-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Emran MY, Mekawy M, Akhtar N, Shenashen MA, El-Sewify IM, Faheem A, El-Safty SA. Broccoli-shaped biosensor hierarchy for electrochemical screening of noradrenaline in living cells. Biosens Bioelectron 2017; 100:122-131. [PMID: 28886456 DOI: 10.1016/j.bios.2017.08.050] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 08/21/2017] [Accepted: 08/22/2017] [Indexed: 01/26/2023]
Abstract
Monitoring and determination of ultra-trace concentrations of monoamine neurotransmitter such as noradrenaline (NA) in living cells with simple, sensitive and selective assays are significantly interesting. We design NA-electrode sensing system based on C-, N-doped NiO broccoli-like hierarchy (CNNB). The spherical broccoli-head umbrella architectures associated with nano-tubular arrangements enabled to tailor NA biosensor design. The homogenous doping and anisotropic dispersion of CN nanospheres along the entire NB head nanotubes lead to creating of abundant electroactive sites in the interior tubular vessels and outer surfaces for ultrasensitive detection of NA in living cells such as PC12. The CNNB biosensor electrodes showed efficient electrocatalytic activity, enhanced kinetics for electrooxidation of NA, and fast electron-transfer between electrode-electrolyte interface surfaces, enabling synergistic enhancement in sensitivity, and selectivity at a low-detectable concentration of ∼ 6nM and reproducibility of broccoli-shaped NA-electrodes. The integrated CNNB biosensor electrodes showed evidence of monitoring and screening of NA released from PC12 cells under K+ ion-extracellular stimulation process. The unique features of CNNB in terms of NA-selectivity among multi-competitive components, long-term stability during the detection of NA may open their practical, in-vitro application for extracellular monoamine neurotransmitters detection in living cells.
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Affiliation(s)
- Mohammed Y Emran
- National Institute for Materials Science (NIMS), Research Center for Functional Materials, 1-2-1 Sengen, Tsukuba-shi, Ibaraki-ken 305-0047, Japan
| | - Moataz Mekawy
- National Institute for Materials Science (NIMS), Research Center for Functional Materials, 1-2-1 Sengen, Tsukuba-shi, Ibaraki-ken 305-0047, Japan
| | - Naeem Akhtar
- National Institute for Materials Science (NIMS), Research Center for Functional Materials, 1-2-1 Sengen, Tsukuba-shi, Ibaraki-ken 305-0047, Japan
| | - Mohamed A Shenashen
- National Institute for Materials Science (NIMS), Research Center for Functional Materials, 1-2-1 Sengen, Tsukuba-shi, Ibaraki-ken 305-0047, Japan
| | - Islam M El-Sewify
- National Institute for Materials Science (NIMS), Research Center for Functional Materials, 1-2-1 Sengen, Tsukuba-shi, Ibaraki-ken 305-0047, Japan
| | - Ahmed Faheem
- School of Pharmacy and Pharmaceutical Sciences, Faculty of Health Sciences and Wellbeing, University of Sunderland, Sunderland SR1 3SD, UK
| | - Sherif A El-Safty
- National Institute for Materials Science (NIMS), Research Center for Functional Materials, 1-2-1 Sengen, Tsukuba-shi, Ibaraki-ken 305-0047, Japan.
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Akhtar N, Emran MY, Shenashen MA, Khalifa H, Osaka T, Faheem A, Homma T, Kawarada H, El-Safty SA. Fabrication of photo-electrochemical biosensors for ultrasensitive screening of mono-bioactive molecules: the effect of geometrical structures and crystal surfaces. J Mater Chem B 2017; 5:7985-7996. [DOI: 10.1039/c7tb01803g] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The controlled design of hierarchical CN-ST flowers is a key feature for creating biosensor surface electrodes for photo-electrochemical, ultrasensitive screening of mono-bioactive molecules.
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Affiliation(s)
- Naeem Akhtar
- National Institute for Materials Science (NIMS)
- Research Center for Functional Materials
- Tsukuba-shi
- Japan
- Graduate School for Science and Engineering
| | - Mohammed Y. Emran
- National Institute for Materials Science (NIMS)
- Research Center for Functional Materials
- Tsukuba-shi
- Japan
| | - Mohamed A. Shenashen
- National Institute for Materials Science (NIMS)
- Research Center for Functional Materials
- Tsukuba-shi
- Japan
| | - Hesham Khalifa
- National Institute for Materials Science (NIMS)
- Research Center for Functional Materials
- Tsukuba-shi
- Japan
| | - Tetsuya Osaka
- Graduate School for Science and Engineering
- Waseda University
- Tokyo 169-8555
- Japan
| | - Ahmed Faheem
- School of Pharmacy and Pharmaceutical Sciences
- Faculty of Health Sciences and Wellbeing
- University of Sunderland
- Sunderland
- UK
| | - Takayuki Homma
- Graduate School for Science and Engineering
- Waseda University
- Tokyo 169-8555
- Japan
| | - Hiroshi Kawarada
- Graduate School for Science and Engineering
- Waseda University
- Tokyo 169-8555
- Japan
| | - Sherif A. El-Safty
- National Institute for Materials Science (NIMS)
- Research Center for Functional Materials
- Tsukuba-shi
- Japan
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Fortgang P, Tite T, Barnier V, Zehani N, Maddi C, Lagarde F, Loir AS, Jaffrezic-Renault N, Donnet C, Garrelie F, Chaix C. Robust Electrografting on Self-Organized 3D Graphene Electrodes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:1424-1433. [PMID: 26710829 DOI: 10.1021/acsami.5b10647] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Improving graphene-based electrode fabrication processes and developing robust methods for its functionalization are two key research routes to develop new high-performance electrodes for electrochemical applications. Here, a self-organized three-dimensional (3D) graphene electrode processed by pulsed laser deposition with thermal annealing is reported. This substrate shows great performance in electron transfer kinetics regarding ferrocene redox probes in solution. A robust electrografting strategy for covalently attaching a redox probe onto these graphene electrodes is also reported. The modification protocol consists of a combination of diazonium salt electrografting and click chemistry. An alkyne-terminated phenyl ring is first electrografted onto the self-organized 3D graphene electrode by in situ electrochemical reduction of 4-ethynylphenyl diazonium. Then the ethynylphenyl-modified surface efficiently reacts with the redox probe bearing a terminal azide moiety (2-azidoethyl ferrocene) by means of Cu(I)-catalyzed alkyne-azide cycloaddition. Our modification strategy applied to 3D graphene electrodes was analyzed by means of atomic force microscopy, scanning electron microscopy, Raman spectroscopy, cyclic voltammetry, and X-ray photoelectron spectroscopy (XPS). For XPS chemical surface analysis, special attention was paid to the distribution and chemical state of iron and nitrogen in order to highlight the functionalization of the graphene-based substrate by electrochemically grafting a ferrocene derivative. Dense grafting was observed, offering 4.9 × 10(-10) mol cm(-2) surface coverage and showing a stable signal over 22 days. The electrografting was performed in the form of multilayers, which offers higher ferrocene loading than a dense monolayer on a flat surface. This work opens highly promising perspectives for the development of self-organized 3D graphene electrodes with various sensing functionalities.
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Affiliation(s)
- Philippe Fortgang
- Institut des Sciences Analytiques, UMR 5280, CNRS, Université de Lyon 1 , 5 rue de la Doua, 69100 Villeurbanne, France
| | - Teddy Tite
- Université de Lyon , F-69003, Lyon, France
- Université de Saint-Étienne , Laboratoire Hubert Curien (UMR 5516 CNRS), 42000 Saint-Étienne, France
| | - Vincent Barnier
- Laboratoire Georges Friedel, Ecole Nationale Supérieure des Mines , 42023 Saint-Etienne, France
| | - Nedjla Zehani
- Institut des Sciences Analytiques, UMR 5280, CNRS, Université de Lyon 1 , 5 rue de la Doua, 69100 Villeurbanne, France
| | - Chiranjeevi Maddi
- Université de Lyon , F-69003, Lyon, France
- Université de Saint-Étienne , Laboratoire Hubert Curien (UMR 5516 CNRS), 42000 Saint-Étienne, France
| | - Florence Lagarde
- Institut des Sciences Analytiques, UMR 5280, CNRS, Université de Lyon 1 , 5 rue de la Doua, 69100 Villeurbanne, France
| | - Anne-Sophie Loir
- Université de Lyon , F-69003, Lyon, France
- Université de Saint-Étienne , Laboratoire Hubert Curien (UMR 5516 CNRS), 42000 Saint-Étienne, France
| | - Nicole Jaffrezic-Renault
- Institut des Sciences Analytiques, UMR 5280, CNRS, Université de Lyon 1 , 5 rue de la Doua, 69100 Villeurbanne, France
| | - Christophe Donnet
- Université de Lyon , F-69003, Lyon, France
- Université de Saint-Étienne , Laboratoire Hubert Curien (UMR 5516 CNRS), 42000 Saint-Étienne, France
| | - Florence Garrelie
- Université de Lyon , F-69003, Lyon, France
- Université de Saint-Étienne , Laboratoire Hubert Curien (UMR 5516 CNRS), 42000 Saint-Étienne, France
| | - Carole Chaix
- Institut des Sciences Analytiques, UMR 5280, CNRS, Université de Lyon 1 , 5 rue de la Doua, 69100 Villeurbanne, France
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Zuo L, Zhang Y, Zhang L, Miao YE, Fan W, Liu T. Polymer/Carbon-Based Hybrid Aerogels: Preparation, Properties and Applications. MATERIALS (BASEL, SWITZERLAND) 2015; 8:6806-6848. [PMID: 28793602 PMCID: PMC5455374 DOI: 10.3390/ma8105343] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 09/20/2015] [Accepted: 09/28/2015] [Indexed: 11/17/2022]
Abstract
Aerogels are synthetic porous materials derived from sol-gel materials in which the liquid component has been replaced with gas to leave intact solid nanostructures without pore collapse. Recently, aerogels based on natural or synthetic polymers, called polymer or organic aerogels, have been widely explored due to their porous structures and unique properties, such as high specific surface area, low density, low thermal conductivity and dielectric constant. This paper gives a comprehensive review about the most recent progresses in preparation, structures and properties of polymer and their derived carbon-based aerogels, as well as their potential applications in various fields including energy storage, adsorption, thermal insulation and flame retardancy. To facilitate further research and development, the technical challenges are discussed, and several future research directions are also suggested in this review.
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Affiliation(s)
- Lizeng Zuo
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai 200433, China.
| | - Youfang Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai 200433, China.
| | - Longsheng Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai 200433, China.
| | - Yue-E Miao
- State Key Laboratory of Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China.
| | - Wei Fan
- State Key Laboratory of Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China.
| | - Tianxi Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai 200433, China.
- State Key Laboratory of Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China.
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Akhtar N, El-Safty SA, Abdelsalam ME, Kawarada H. One-Pot Fabrication of Dendritic NiO@carbon-nitrogen Dot Electrodes for Screening Blood Glucose Level in Diabetes. Adv Healthc Mater 2015; 4:2110-2119. [PMID: 26293491 DOI: 10.1002/adhm.201500369] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 07/04/2015] [Indexed: 12/26/2022]
Abstract
Selective and sensitive glucose sensors with fast response for screening diabetic blood level are demanded. In this paper, the one-pot nanoarchitecture of dendritic NiO@carbon-nitrogen (C-N) dots (designated as NCD) sphere-wrapping Ni foam electrodes are reported as an effective and sensitive glucose sensor in blood samples. In this construction design, the NCD sphere electrode with excessive surface defects, large fractions of catalytic active sites, high surface area, and mobility of electron transfer through the actively surface NCD sphere can massively enhance the electrocatalytic activity for nonenzymatic glucose detection in diabetic blood. This portable sensor enables highly sensitive recognition of glucose detection (≈0.01 × 10-6 m) over a wider linear range (≈0.005-12 × 10-3 m) with rapid response time of a few seconds. The key result is that the engineered NCD sphere electrodes function as simple, easy-to-use electrochemical sensing assays of glucose levels in diabetic blood patients with a wide range of precision or linearity, recyclability, and excellent selectivity, even in the presence of potentially interfering organic (ascorbic acid, uric acid, dopamine, lactose, maltose, and sucrose) and inorganic (NaCl, Na2 SO4 , KCl, and K2 SO4 ) species. The results demonstrate the potential for the electrochemical sensors to be used in preventing serious health problems associated with diabetes mismanagement.
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Affiliation(s)
- Naeem Akhtar
- National Institute for Materials Science (NIMS); 1-2-1 Sengen Tsukuba-shi Ibaraki-ken 305-0047 Japan
- Graduate School of Advanced Science and Engineering; Waseda University; 3-4-1 Okubo Shinjuku-Ku Tokyo 169-8555 Japan
| | - Sherif A. El-Safty
- National Institute for Materials Science (NIMS); 1-2-1 Sengen Tsukuba-shi Ibaraki-ken 305-0047 Japan
- Graduate School of Advanced Science and Engineering; Waseda University; 3-4-1 Okubo Shinjuku-Ku Tokyo 169-8555 Japan
| | | | - Hiroshi Kawarada
- Graduate School of Advanced Science and Engineering; Waseda University; 3-4-1 Okubo Shinjuku-Ku Tokyo 169-8555 Japan
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Allahbakhsh A, Bahramian AR. Self-assembled and pyrolyzed carbon aerogels: an overview of their preparation mechanisms, properties and applications. NANOSCALE 2015; 7:14139-14158. [PMID: 26245296 DOI: 10.1039/c5nr03855c] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An overview of the synthesis conditions and mechanisms for the fabrication of different types of carbon aerogels, as well as the structural and functional properties of these materials, is presented here. In this overview, carbon aerogels are classified into three major categories: (i) conventional pyrolyzed organic-based carbon aerogels, which are products of the pyrolysis process of organic aerogels; (ii) self-assembled carbon aerogels, which are products of a reduction process; and (iii) nanocomposite carbon aerogels. Synthesis mechanisms for the sol-gel process of organic aerogels are reviewed using different mechanisms suggested in the literature. Moreover, the overall fabrication process of self-assembled carbon aerogels (graphene and carbon nanotube aerogels) is covered and the suggested mechanism for the gelation process of self-assembled carbon aerogels during the reduction process is investigated using reported mechanisms. The structural performance and functional properties (electrochemical and thermal properties) of different types of carbon aerogels are covered in detail. Moreover, different structural features of carbon aerogels and the influence of synthesis conditions on these structural characteristics are assessed and compared. Based on the literature results covered in this review paper, carbon aerogels are perfect candidates for the fabrication of ultra-low density supercapacitors, as well as thermal insulating materials.
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Affiliation(s)
- Ahmad Allahbakhsh
- Department of Polymer Engineering, Faculty of Chemical Engineering, Tarbiat Modares University, P.O. 14115-114, Tehran, Iran.
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Li P, Huang TC, White KL, Hawkins S, Kotaki M, Nishimura R, Sue HJ. Spray-coated epoxy barrier films containing high aspect ratio functionalized graphene nanosheets. RSC Adv 2015. [DOI: 10.1039/c5ra15363h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Epoxy nanocomposite spray-coatings containing large aspect ratio modified graphene (MG) were successfully prepared in a facile manner.
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Affiliation(s)
- Peng Li
- Department of Materials Science and Engineering
- Texas A&M University
- College Station
- USA
| | - Tsao-Cheng Huang
- Department of Materials Science and Engineering
- Texas A&M University
- College Station
- USA
| | - Kevin L. White
- Department of Materials Science and Engineering
- Texas A&M University
- College Station
- USA
| | - Spencer Hawkins
- Department of Materials Science and Engineering
- Texas A&M University
- College Station
- USA
| | - Masaya Kotaki
- Material Research Center
- Kaneka Americas Holding, Inc
- College Station
- USA
| | - Riichi Nishimura
- Frontier Materials Development Laboratories
- Kaneka Corporation
- Osaka 530-8288
- Japan
| | - Hung-Jue Sue
- Department of Materials Science and Engineering
- Texas A&M University
- College Station
- USA
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