1
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Gimadutdinova L, Ziyatdinova G, Davletshin R. Selective Voltammetric Sensor for the Simultaneous Quantification of Tartrazine and Brilliant Blue FCF. SENSORS (BASEL, SWITZERLAND) 2023; 23:1094. [PMID: 36772133 PMCID: PMC9920251 DOI: 10.3390/s23031094] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Tartrazine and brilliant blue FCF are synthetic dyes used in the food, cosmetic and pharmaceutical industries. The individual and/or simultaneous control of their concentrations is required due to dose-dependent negative health effects. Therefore, the paper presents experimental results related to the development of a sensing platform for the electrochemical detection of tartrazine and brilliant blue FCF based on a glassy carbon electrode (GCE) modified with MnO2 nanorods, using anodic differential pulse voltammetry. Homogeneous and stable suspensions of MnO2 nanorods have been obtained involving cetylpyridinium bromide solution as a cationic surfactant. The MnO2 nanorods-modified electrode showed a 7.9-fold increase in the electroactive surface area and a 72-fold decrease in the electron transfer resistance. The developed sensor allowed the simultaneous quantification of dyes for two linear domains: in the ranges of 0.10-2.5 and 2.5-15 μM for tartrazine and 0.25-2.5 and 2.5-15 μM for brilliant blue FCF with detection limits of 43 and 41 nM, respectively. High selectivity of the sensor response in the presence of typical interference agents (inorganic ions, saccharides, ascorbic and sorbic acids), other food dyes (riboflavin, indigo carmine, and sunset yellow), and vanillin has been achieved. The sensor has been tested by analyzing soft and isotonic sports drinks and the determined concentrations were close to those obtained involving the chromatography technique.
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Affiliation(s)
- Liliya Gimadutdinova
- Analytical Chemistry Department, Kazan Federal University, Kremleyevskaya, 18, Kazan 420008, Russia
| | - Guzel Ziyatdinova
- Analytical Chemistry Department, Kazan Federal University, Kremleyevskaya, 18, Kazan 420008, Russia
| | - Rustam Davletshin
- Department of High Molecular and Organoelement Compounds, Kazan Federal University, Kremleyevskaya, 18, Kazan 420008, Russia
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2
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Brainina KZ, Shpigun LK. State‐of‐the‐art electrochemistry for the assessment of oxidative stress and integral antioxidant activity of biological environments. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Khiena Z. Brainina
- Laboratory of analytical chemisty and separation methods N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences Moscow Russia
| | - Liliya K. Shpigun
- Laboratory of analytical chemisty and separation methods N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences Moscow Russia
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3
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Annalakshmi M, Kumaravel S, Balamurugan T, Chen SM, He JL. Facile solvothermal synthesis of ultrathin spinel ZnMn2O4 nanospheres: An efficient electrocatalyst for in vivo and in vitro real time monitoring of H2O2. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115674] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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4
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Bohlooli F, Yamatogi A, Mori S. Manganese oxides/carbon nanowall nanocomposite electrode as an efficient non-enzymatic electrochemical sensor for hydrogen peroxide. SENSING AND BIO-SENSING RESEARCH 2021. [DOI: 10.1016/j.sbsr.2020.100392] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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5
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Khaliq N, Rasheed MA, Khan M, Maqbool M, Ahmad M, Karim S, Nisar A, Schmuki P, Cho SO, Ali G. Voltage-Switchable Biosensor with Gold Nanoparticles on TiO 2 Nanotubes Decorated with CdS Quantum Dots for the Detection of Cholesterol and H 2O 2. ACS APPLIED MATERIALS & INTERFACES 2021; 13:3653-3668. [PMID: 33439005 DOI: 10.1021/acsami.0c19979] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A thin layer of gold nanoparticles (Au NPs) sputtered on cadmium sulfide quantum dots (CdS QDs) decorated anodic titanium dioxide nanotubes (TNTs) (Au/CdS QDs/TNTs) was fabricated and explored for the nonenzymatic detection of cholesterol and hydrogen peroxide (H2O2). Morphological studies of the sensor revealed the formation of uniform nanotubes decorated with a homogeneously dispersed CdS QDs and Au NPs layer. The electrochemical measurements showed an enhanced electrocatalytic performance with a fast electron transfer (∼2 s) between the redox centers of each analyte and electrode surface. The hybrid nanostructure (Au/CdS QDs/TNTs) electrode exhibited about a 6-fold increase in sensitivity for both cholesterol (10,790 μA mM-1 cm-2) and H2O2 (78,833 μA mM-1 cm-2) in analyses compared to the pristine samples. The hybrid electrode utilized different operational potentials for both analytes, which may lead to a voltage-switchable dual-analyte biosensor with a higher selectivity. The biosensor also demonstrated a good reproducibility, thermal stability, and increased shelf life. In addition, the clinical significance of the biosensor was tested for cholesterol and H2O2 in real blood samples, which showed maximum relative standard deviations of 1.8 and 2.3%, respectively. These results indicate that a Au/CdS QDs/TNTs-based hybrid nanostructure is a promising choice for an enzyme-free biosensor due to its suitable band gap alignment and higher electrocatalytic activities.
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Affiliation(s)
- Nilem Khaliq
- Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad 45650, Pakistan
| | - Muhammad Asim Rasheed
- Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad 45650, Pakistan
| | - Maaz Khan
- Nanomaterials Research Group (NRG), Physics Division, PINSTECH, Islamabad 44000, Pakistan
| | - Muhammad Maqbool
- Department of Clinical & Diagnostic Sciences, the University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Mashkoor Ahmad
- Nanomaterials Research Group (NRG), Physics Division, PINSTECH, Islamabad 44000, Pakistan
| | - Shafqat Karim
- Nanomaterials Research Group (NRG), Physics Division, PINSTECH, Islamabad 44000, Pakistan
| | - Amjad Nisar
- Nanomaterials Research Group (NRG), Physics Division, PINSTECH, Islamabad 44000, Pakistan
| | - Patrik Schmuki
- Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Martensstrasse 7, D-91058 Erlangen, Germany
- Department of Chemistry, King Abdulaziz University, Jeddah 21413, Saudi Arabia
| | - Sung Oh Cho
- Department of Nuclear and Quantum Engineering (NQe), KAIST, Daejeon 34141, South Korea
| | - Ghafar Ali
- Nanomaterials Research Group (NRG), Physics Division, PINSTECH, Islamabad 44000, Pakistan
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6
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Xu J, Liu Z, Ma W, Liu Y, Ding Y, Wang L. Polyaniline-intercalated manganese dioxide nanolayers prepared by a delamination/reassembling process and its application for hydrogen peroxide sensing. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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7
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Chandrasekaran N, Matheswaran M. Unique Nonenzymatic Glucose Sensor Using a Hollow-Shelled Triple Oxide Mn-Cu-Al Nanocomposite. ACS OMEGA 2020; 5:23502-23509. [PMID: 32984668 PMCID: PMC7512457 DOI: 10.1021/acsomega.0c00417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
Glucose monitoring devices for diabetes mellitus, which is a worldwide significant health issue, have attracted attention of many researchers. Herein, we report a hollow Mn-Cu-Al oxide nanocomposite (HMCA) by a microwave-assisted technique showing excellent sensing abilities toward glucose. Also, it possesses a superb supercapacitor activity described in our previous paper. The sensitivity value of the nanocomposite is 2.194 mA mM-1 cm-2 with a low detection limit of 0.43 μM (S/N = 3). The high sensitivity and low detection limit were the results of the large surface area of the nanocomposite and the redox nature of CuO and MnO2. It shows a selective detection of glucose levels in blood serum. The hollow nanocomposite has been useful for monitoring the glucose level in blood serum and holds great potential for diabetes mellitus and clinical diagnosis.
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Affiliation(s)
| | - Manickam Matheswaran
- Department
of Chemical Engineering, National Institute
of Technology Tiruchirappalli, Tiruchirappalli 620015, India
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8
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Knežević S, Ognjanović M, Nedić N, Mariano JF, Milanović Z, Petković B, Antić B, Djurić SV, Stanković D. A single drop histamine sensor based on AuNPs/MnO2 modified screen-printed electrode. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104778] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Zhu X, Dai Y, Sun Y, Liu H, Sun W, Lin Y, Gao D, Han R, Wang X, Luo C. Rapid fabrication of electrode for the detection of alpha fetoprotein based on MnO2 functionalized mesoporous carbon hollow sphere. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110206. [DOI: 10.1016/j.msec.2019.110206] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 08/12/2019] [Accepted: 09/13/2019] [Indexed: 01/01/2023]
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10
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Ren B, Wang Y, Ou JZ. Engineering two-dimensional metal oxides via surface functionalization for biological applications. J Mater Chem B 2020; 8:1108-1127. [DOI: 10.1039/c9tb02423a] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Schematic illustration of 2D MO nanosheets for applications in biosystems.
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Affiliation(s)
- Baiyu Ren
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
- School of Resources and Environmental Engineering
| | - Yichao Wang
- School of Engineering
- RMIT University
- Melbourne
- Australia
| | - Jian Zhen Ou
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
- School of Engineering
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11
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Li Q, Xia Y, Wan X, Yang S, Cai Z, Ye Y, Li G. Morphology-dependent MnO 2/nitrogen-doped graphene nanocomposites for simultaneous detection of trace dopamine and uric acid. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 109:110615. [PMID: 32228941 DOI: 10.1016/j.msec.2019.110615] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 12/09/2019] [Accepted: 12/28/2019] [Indexed: 12/13/2022]
Abstract
Four nanostructured MnO2 with various controllable morphologies, including nanowires, nanorods, nanotubes and nanoflowers were synthesized, and then further composited with nitrogen-doped graphene (NG) with the assistance of ultrasonication. The surface morphologies, phase structures, and electrochemical performances of the proposed MnO2/NG nanohybrids were investigated by various techniques, and their catalytic activities on the electrooxidation of dopamine (DA) and uric acid (UA) were compared systematically. The sensing performances were found to be highly correlated with their morphologies. Among these morphologies, the nanoflower-like MnO2, composited with NG, displayed the most sensitive response signals for DA and UA. The boosted electrocatalytic activity was ascribed to the unique porous structure, large electroactive area, and low charge transfer resistance (Rct), which facilitated the electron transfer between electrode and analytes. Two linear response ranges (0.1 μM-10 μM and 10 μM-100 μM) were accompanied with very low detection limits of 34 nM and 39 nM for DA and UA, respectively. Moreover, the successful application of the MnO2NFs/NG composites for the simultaneous detection of DA and UA in human serum was realized using second-derivative linear sweep voltammetry (SDLSV). These findings give valuable insights for understanding the morphology-dependent sensing properties of MnO2 based nanomaterials, which is conducive to the rapid development of ubiquitous MnO2-based electrochemical sensors.
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Affiliation(s)
- Qing Li
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Yonghui Xia
- Zhuzhou Institute for Food and Drug Control, Zhuzhou 412000, China
| | - Xuan Wan
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Shihui Yang
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Zhaotian Cai
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Yabing Ye
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Guangli Li
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China.
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12
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Ouiram T, Moonla C, Preechaworapun A, Tangkuaram T. Enzyme‐free Cu
2
O@MnO
2
/GCE for Hydrogen Peroxide Sensing. ELECTROANAL 2019. [DOI: 10.1002/elan.201800897] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tik Ouiram
- Applied Chemistry Program, Faculty of ScienceMaejo University Chiang Mai 50290 Thailand
| | - Chochanon Moonla
- Applied Chemistry Program, Faculty of ScienceMaejo University Chiang Mai 50290 Thailand
| | - Anchana Preechaworapun
- Chemistry Program, Faculty of Science and TechnologyPibulsongkram Rajabhat University Phitsanulok 65000 Thailand
| | - Tanin Tangkuaram
- Chemistry Program, Faculty of ScienceMaejo University Chiang Mai 50290 Thailand
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13
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Li Y, Tang L, Deng D, Ye J, Wu Z, Wang J, Luo L. A novel non-enzymatic H 2O 2 sensor using ZnMn 2O 4 microspheres modified glassy carbon electrode. Colloids Surf B Biointerfaces 2019; 179:293-298. [PMID: 30981064 DOI: 10.1016/j.colsurfb.2019.04.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/25/2019] [Accepted: 04/03/2019] [Indexed: 11/30/2022]
Abstract
With a facile solvothermal technique, ZnMn2O4 microspheres were synthesized in this work, which were used as enzyme mimics for the electrocatalytic reduction of H2O2. The morphology, crystal phase and structure of the ZnMn2O4 microspheres underwent characterization under X-ray diffraction spectroscopy, Raman spectroscopy, energy-dispersive spectroscopy, and scanning electron microscopy. The synthesized ZnMn2O4 microspheres showed an average diameter of 2 μm with great crystallinity, and exhibited excellent catalytical activity towards H2O2 electroreduction in alkaline media. The glassy carbon electrode modified by ZnMn2O4 microspheres showed a linear amperometric response for H2O2 in a wide concentration range of 0.02 ˜ 15 mM with detection limit of 0.13 μM under the optimized conditions. Besides, the sensor proposed here was successfully used to determine H2O2 in milk, suggesting that ZnMn2O4 microspheres can be used for non-enzymatic electrochemical sensor applications.
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Affiliation(s)
- Yuanyuan Li
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China; College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Li Tang
- College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Dongmei Deng
- College of Sciences, Shanghai University, Shanghai, 200444, PR China.
| | - Jinhong Ye
- College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Zhenyu Wu
- College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Jinhua Wang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China.
| | - Liqiang Luo
- College of Sciences, Shanghai University, Shanghai, 200444, PR China.
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14
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Detection of Triacetone Triperoxide (TATP) Precursors with an Array of Sensors Based on MoS₂/RGO Composites. SENSORS 2019; 19:s19061281. [PMID: 30871286 PMCID: PMC6472037 DOI: 10.3390/s19061281] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 03/06/2019] [Accepted: 03/08/2019] [Indexed: 02/04/2023]
Abstract
Triacetone triperoxide (TATP) is a self-made explosive synthesized from the commonly used chemical acetone (C₃H₆O) and hydrogen peroxide (H₂O₂). As C₃H₆O and H₂O₂ are the precursors of TATP, their detection is very important due to the high risk of the presence of TATP. In order to detect the precursors of TATP effectively, hierarchical molybdenum disulfide/reduced graphene oxide (MoS₂/RGO) composites were synthesized by a hydrothermal method, using two-dimensional reduced graphene oxide (RGO) as template. The effects of the ratio of RGO to raw materials for the synthesis of MoS₂ on the morphology, structure, and gas sensing properties of the MoS₂/RGO composites were studied. It was found that after optimization, the response to 50 ppm of H₂O₂ vapor was increased from 29.0% to 373.1%, achieving an increase of about 12 times. Meanwhile, all three sensors based on MoS₂/RGO composites exhibited excellent anti-interference performance to ozone with strong oxidation. Furthermore, three sensors based on MoS₂/RGO composites were fabricated into a simple sensor array, realizing discriminative detection of three target analytes in 14.5 s at room temperature. This work shows that the synergistic effect between two-dimensional RGO and MoS₂ provides new possibilities for the development of high performance sensors.
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15
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Ko W, Chen Y, Li M, Lai J, Lin K. A Novel Hydrogen Peroxide Amperometric Sensor Based on Hierarchical 3D Porous MnO
2
−TiO
2
Composites. ELECTROANAL 2019. [DOI: 10.1002/elan.201800783] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Wen‐Yin Ko
- Department of Chemistry and Research Center for Sustainable Energy and NanotechnologyNational Chung Hsing University Taichung 402 Taiwan
| | - Yi‐Shin Chen
- Department of Chemistry and Research Center for Sustainable Energy and NanotechnologyNational Chung Hsing University Taichung 402 Taiwan
| | - Meng‐Shan Li
- Department of Chemistry and Research Center for Sustainable Energy and NanotechnologyNational Chung Hsing University Taichung 402 Taiwan
| | - Jun‐Yan Lai
- Department of Chemistry and Research Center for Sustainable Energy and NanotechnologyNational Chung Hsing University Taichung 402 Taiwan
| | - Kuan‐Jiuh Lin
- Department of Chemistry and Research Center for Sustainable Energy and NanotechnologyNational Chung Hsing University Taichung 402 Taiwan
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16
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Diagnosis of EGFR exon21 L858R point mutation as lung cancer biomarker by electrochemical DNA biosensor based on reduced graphene oxide /functionalized ordered mesoporous carbon/Ni-oxytetracycline metallopolymer nanoparticles modified pencil graphite electrode. Biosens Bioelectron 2018; 113:108-115. [DOI: 10.1016/j.bios.2018.04.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 03/21/2018] [Accepted: 04/06/2018] [Indexed: 01/01/2023]
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17
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Mutyala S, Kinsly J, Sharma G, Chinnathambi S, Jayaraman M. Non-enzymatic electrochemical hydrogen peroxide detection using MoS2- Interconnected porous carbon heterostructure. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.06.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Li K, Jie S, Li Y, Lin X, Liu Z. The synthesis of N, S-codoped ordered mesoporous carbon as an efficient metal-free catalyst for selective oxidation of arylalkanes. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2018.04.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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19
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Kang L, Yang Z, Xu Y, Jiang W, Wang F, Meng Y, Liu N, Liu F, Ding S. Self-assembly of Fe2O3/ordered mesoporous carbons for high-performance lithium-ion batteries. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.03.066] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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20
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Goldoni A, Alijani V, Sangaletti L, D'Arsiè L. Advanced promising routes of carbon/metal oxides hybrids in sensors: A review. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.170] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Chen P, Wang T, Zheng X, Tian D, Xia F, Zhou C. An ultrasensitive electrochemical immunosensor based on C60-modified polyamidoamine dendrimers and Au NPs for co-catalytic silver deposition. NEW J CHEM 2018. [DOI: 10.1039/c8nj00059j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
C60-Modified polyamidoamine dendrimers and Au NPs for the co-catalytic deposition of silver, used for ultrasensitive electrochemical immunosensing.
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Affiliation(s)
- Peipei Chen
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Ting Wang
- Jinan Environmental Monitoring Center
- Jinan 250101
- P. R. China
| | - Xiangli Zheng
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Dong Tian
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Fangquan Xia
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Changli Zhou
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
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22
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Zhang ZX, Liu Y, Meng WJ, Wang J, Li W, Wang H, Zhao D, Lu JX. One-pot synthesis of Ni nanoparticle/ordered mesoporous carbon composite electrode materials for electrocatalytic reduction of aromatic ketones. NANOSCALE 2017; 9:17807-17813. [PMID: 29115341 DOI: 10.1039/c7nr06602c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A simple one-pot synthesis of Ni nanoparticle/ordered mesoporous carbon composite electrode materials is demonstrated for electrosynthesis for the first time. The obtained nanocomposites have uniform mesopore sizes (3.0-3.7 nm), large specific surface areas (506-633 m2 g-1), high pore volumes (0.28-0.38 cm3 g-1), well-graphitized carbon frameworks, and uniformly dispersed Ni nanoparticles (7-15 nm) embedded in the carbon pore walls. The prepared materials show very high performance in the selective (∼84%) electrocatalytic reduction of aromatic ketones into alcohols (∼79%).
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Affiliation(s)
- Zhi-Xia Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China.
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23
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Walcarius A. Recent Trends on Electrochemical Sensors Based on Ordered Mesoporous Carbon. SENSORS (BASEL, SWITZERLAND) 2017; 17:E1863. [PMID: 28800106 PMCID: PMC5579580 DOI: 10.3390/s17081863] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Revised: 08/09/2017] [Accepted: 08/10/2017] [Indexed: 01/27/2023]
Abstract
The past decade has seen an increasing number of extensive studies devoted to the exploitation of ordered mesoporous carbon (OMC) materials in electrochemistry, notably in the fields of energy and sensing. The present review summarizes the recent achievements made in field of electroanalysis using electrodes modified with such nanomaterials. On the basis of comprehensive tables, the interest in OMC for designing electrochemical sensors is illustrated through the various applications developed to date. They include voltammetric detection after preconcentration, electrocatalysis (intrinsically due to OMC or based on suitable catalysts deposited onto OMC), electrochemical biosensors, as well as electrochemiluminescence and potentiometric sensors.
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Affiliation(s)
- 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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24
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Introduction of a simple sensing device for monitoring of hydrogen peroxide based on ZnFe 2 O 4 nanoparticles/chitosan modified gold electrode. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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25
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Ravindran Madhura T, Viswanathan P, Gnana kumar G, Ramaraj R. Nanosheet-like manganese ferrite grown on reduced graphene oxide for non-enzymatic electrochemical sensing of hydrogen peroxide. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.03.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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26
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Olenin AY. Methods of nonenzymatic determination of hydrogen peroxide and related reactive oxygen species. JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1134/s1061934817030108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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A non-enzymatic amperometric hydrogen peroxide sensor based on iron nanoparticles decorated reduced graphene oxide nanocomposite. J Colloid Interface Sci 2016; 487:370-377. [PMID: 27810505 DOI: 10.1016/j.jcis.2016.10.050] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/17/2016] [Accepted: 10/18/2016] [Indexed: 01/15/2023]
Abstract
A simple and facile green process was used for the synthesis of iron nanoparticles (FeNPs) decorated reduced graphene oxide (rGO) nanocomposite by using Ipomoea pes-tigridis leaf extract as a reducing and stabilizing agent. The as-prepared rGO/FeNPs nanocomposite was characterized by transmission electron microscopy, X-ray spectroscopy and Fourier transform infrared spectroscopy. The nanocomposite was further modified on the glassy carbon electrode and used for non-enzymatic sensing of hydrogen peroxide (H2O2). Cyclic voltammetry results reveal that rGO/FeNPs nanocomposite has excellent electro-reduction behavior to H2O2 when compared to the response of FeNPs and rGO modified electrodes. Furthermore, the nanocomposite modified electrode shows 9 and 6 folds enhanced reduction current response to H2O2 than that of rGO and FeNPs modified electrodes. Amperometric method was further used to quantify the H2O2 using rGO/FeNPs nanocomposite, and the response was linear over the concentration ranging from 0.1μM to 2.15mM. The detection limit and sensitivity of the sensor were estimated as 0.056μM and 0.2085μAμM-1cm-2, respectively. The fabricated sensor also utilized for detection of H2O2 in the presence of potentially active interfering species, and found high selectivity towards H2O2.
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Zhang C, Li L, Ju J, Chen W. Electrochemical Sensor Based on Graphene-Supported Tin Oxide Nanoclusters for Nonenzymatic Detection of Hydrogen Peroxide. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.05.151] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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29
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Novel design of non-enzymatic sensor for rapid monitoring of hydrogen peroxide in water matrix. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.01.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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A ternary nanocatalyst of Ni/Cr/Co oxides with high activity and stability for alkaline glucose electrooxidation. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.186] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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31
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Ray C, Dutta S, Roy A, Sahoo R, Pal T. Redox mediated synthesis of hierarchical Bi2O3/MnO2 nanoflowers: a non-enzymatic hydrogen peroxide electrochemical sensor. Dalton Trans 2016; 45:4780-90. [DOI: 10.1039/c6dt00062b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Redox mediated synthesis of Bi2O3/MnO2 nanoflowers for efficient electrochemical sensing of hydrogen peroxide down to 0.05 μM.
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Affiliation(s)
- Chaiti Ray
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur – 721302
- India
| | - Soumen Dutta
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur – 721302
- India
| | - Anindita Roy
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur – 721302
- India
| | - Ramkrishna Sahoo
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur – 721302
- India
| | - Tarasankar Pal
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur – 721302
- India
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32
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Bai W, Sheng Q, Nie F, Zheng J. Controllable Synthesis of Formaldehyde Modified Manganese Oxide Based on Gas-Liquid Interfacial Reaction and Its Application of Electrochemical Sensing. ACS APPLIED MATERIALS & INTERFACES 2015; 7:28377-28386. [PMID: 26647786 DOI: 10.1021/acsami.5b09094] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Controllable synthesis of manganese oxides was performed via a simple one-step synthetic method. Then obtained manganese oxides which exhibit flower-like, cloud-like, hexagon-like, and rod-like morphologies were modified by formaldehyde based on a simple self-made gas-liquid reaction device respectively and the modified manganese oxides with coral-like, scallop-like and rod-like morphology were synthesized accordingly. The obtained materials were characterized and the formation mechanism was also researched. Then the modified manganese oxides were used to fabricate electrochemical sensors to detect H2O2. Comparison of electrochemical properties between three kinds of modified manganese oxides was investigated and the best one has been successfully employed as H2O2 sensor which shows a low detection limit of 0.01 μM, high sensitivity of 162.69 μA mM(-1) cm(-2), and wide linear range of 0.05 μM-12.78 mM. The study provides a new method for controllable synthesis of metal oxides, and electrochemical application of formaldehyde modified manganese oxides will provides a new strategy for electrochemical sensing with high performance, low cost, and simple fabrication.
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Affiliation(s)
- Wushuang Bai
- Institute of Analytical Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Northwest University , Xi'an, Shaanxi 710069, China
| | - Qinglin Sheng
- Institute of Analytical Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Northwest University , Xi'an, Shaanxi 710069, China
| | - Fei Nie
- Institute of Analytical Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Northwest University , Xi'an, Shaanxi 710069, China
| | - Jianbin Zheng
- Institute of Analytical Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Northwest University , Xi'an, Shaanxi 710069, China
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33
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Lee JH, Hong HG. Nonenzymatic electrochemical sensing of hydrogen peroxide based on a polyaniline-MnO2 nanofiber-modified glassy carbon electrode. J APPL ELECTROCHEM 2015. [DOI: 10.1007/s10800-015-0881-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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34
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Jia F, Zhong H, Zhu F, Li X, Wang Y, Cheng Z, Zhang L, Sheng Z, Guo L. Nonenzymatic Hydrogen Peroxide Electrochemical Sensor Based on Au-HS/SO3H-PMO (Et) Nanocomposite. ELECTROANAL 2014. [DOI: 10.1002/elan.201400318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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35
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Nsabimana A, Bo X, Zhang Y, Li M, Han C, Guo L. Electrochemical properties of boron-doped ordered mesoporous carbon as electrocatalyst and Pt catalyst support. J Colloid Interface Sci 2014; 428:133-40. [DOI: 10.1016/j.jcis.2014.04.044] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 04/21/2014] [Indexed: 11/16/2022]
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36
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Chen X, Guo B, Hu P, Wang Y. A Non-Enzymatic Hydrogen Peroxide Sensor Based on Gold Nanoparticles/Carbon Nanotube/Self-Doped Polyaniline Hollow Spheres. ELECTROANAL 2014. [DOI: 10.1002/elan.201400080] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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37
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Dawson K, O'Riordan A. Electroanalysis at the nanoscale. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2014; 7:163-181. [PMID: 24818810 DOI: 10.1146/annurev-anchem-071213-020133] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This article reviews the state of the art of silicon chip-based nanoelectrochemical devices for sensing applications. We first describe analyte mass transport to nanoscale electrodes and emphasize understanding the importance of mass transport for the design of nanoelectrode arrays. We then describe bottom-up and top-down approaches to nanoelectrode fabrication and integration at silicon substrates. Finally, we explore recent examples of on-chip nanoelectrodes employed as sensors and diagnostics, finishing with a brief look at future applications.
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Affiliation(s)
- Karen Dawson
- Nanotechnology Group, Tyndall National Institute, University College Cork, Cork, Ireland;
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38
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Bai W, Nie F, Zheng J, Sheng Q. Novel silver nanoparticle-manganese oxyhydroxide-graphene oxide nanocomposite prepared by modified silver mirror reaction and its application for electrochemical sensing. ACS APPLIED MATERIALS & INTERFACES 2014; 6:5439-5449. [PMID: 24660983 DOI: 10.1021/am500641d] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A gas/liquid interface will be formed when the free volatilized methyl aldehyde gas begins to dissolve in to solution. On the basis of the traditional silver mirror reaction, silver nanoparticle-manganese oxyhydroxide-graphene oxide (Ag-MnOOH-GO) nanocomposite was synthesized at the gas/liquid interface without any protection of inert gas at room temprature. The morphology of the nanocomposites could be controlled by adjusting the reaction temperature and time. The morphology and composition of the nanocomposites were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. The composites were then applied for electrochemical sensing. The electrochemical investigation for the sensor indicates that it has excellent property to catalyze H2O2, and could detect H2O2 with a low detection limit of 0.2μM and wide linear range of 0.5 μM to 17.8 mM. The present study provides a general platform for the controlled synthesis of nanomaterials and can be extended to other optical, electronic, and magnetic nanocompounds.
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Affiliation(s)
- Wushuang Bai
- Institute of Analytical Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Northwest University , Xi'an, Shaanxi 710069, China
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39
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Yin X, Guo M, Xia Y, Huang W, Li Z. Amperometric sensing of hydrogen peroxide on a modified electrode with layered Au/TiO2 nanofilms from self-assembly at air/water interface. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.02.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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40
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Zor E, Saglam ME, Akin I, Saf AO, Bingol H, Ersoz M. Green synthesis of reduced graphene oxide/nanopolypyrrole composite: characterization and H2O2 determination in urine. RSC Adv 2014. [DOI: 10.1039/c4ra00578c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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41
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Zhou DL, Chen DJ, Zhang PP, Li FF, Chen JR, Wang AJ, Feng JJ. Facile synthesis of MnO2–Ag hollow microspheres with sheet-like subunits and their catalytic properties. CrystEngComm 2014. [DOI: 10.1039/c3ce41992d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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42
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He S, Zhang B, Liu M, Chen W. Non-enzymatic hydrogen peroxide electrochemical sensor based on a three-dimensional MnO2 nanosheets/carbon foam composite. RSC Adv 2014. [DOI: 10.1039/c4ra09007a] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Three dimensional MnO2 nanosheets/carbon foam has been fabricated and they exhibit promising electrochemical sensing performance for nonenzymatic H2O2 detection.
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Affiliation(s)
- Shuijian He
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, China
- University of Chinese Academy of Sciences
| | - Boya Zhang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, China
| | - Minmin Liu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, China
- University of Chinese Academy of Sciences
| | - Wei Chen
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, China
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43
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Lai W, Zhuang J, Que X, Fu L, Tang D. Mesoporous nanogold–MnO2–poly(o-phenylenediamine) hollow microspheres as nanotags and peroxidase mimics for sensing biomolecules. Biomater Sci 2014; 2:1073-1079. [DOI: 10.1039/c3bm60284b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mesoporous MnO2 nanotags as peroxidase mimics for sensing biomolecules.
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Affiliation(s)
- Wenqiang Lai
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Department of Chemistry
- Fuzhou University
- Fuzhou 350108, P.R. China
| | - Junyang Zhuang
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Department of Chemistry
- Fuzhou University
- Fuzhou 350108, P.R. China
| | - Xiaohua Que
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Department of Chemistry
- Fuzhou University
- Fuzhou 350108, P.R. China
| | - Libing Fu
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Department of Chemistry
- Fuzhou University
- Fuzhou 350108, P.R. China
| | - Dianping Tang
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Department of Chemistry
- Fuzhou University
- Fuzhou 350108, P.R. China
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44
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Wang L, Deng M, Ding G, Chen S, Xu F. Manganese dioxide based ternary nanocomposite for catalytic reduction and nonenzymatic sensing of hydrogen peroxide. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.10.074] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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45
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Luo L, Zhang Y, Li F, Si X, Ding Y, Deng D, Wang T. Enzyme mimics of spinel-type CoxNi1−xFe2O4 magnetic nanomaterial for eletroctrocatalytic oxidation of hydrogen peroxide. Anal Chim Acta 2013; 788:46-51. [DOI: 10.1016/j.aca.2013.06.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 06/17/2013] [Accepted: 06/19/2013] [Indexed: 02/08/2023]
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46
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Chen XM, Cai ZX, Huang ZY, Oyama M, Jiang YQ, Chen X. Ultrafine palladium nanoparticles grown on graphene nanosheets for enhanced electrochemical sensing of hydrogen peroxide. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.02.047] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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47
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Electrical characterization and hydrogen peroxide sensing properties of gold/Nafion:polypyrrole/MWCNTs electrochemical devices. SENSORS 2013; 13:3878-88. [PMID: 23529125 PMCID: PMC3658780 DOI: 10.3390/s130303878] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Revised: 03/05/2013] [Accepted: 03/12/2013] [Indexed: 11/18/2022]
Abstract
Electrochemical devices using as substrates copier grade transparency sheets are developed by using ion conducting Nafion: polypyrrole mixtures, deposited between gold bottom electrodes and upper electrodes based on Multi Walled Carbon Nanotubes (MWCNTs). The electrical properties of the Nafion:polypyrrole blends and of the gold/Nafion:polypyrrole/MWCNTs devices are investigated under dry conditions and in deionized water by means of frequency dependent impedance measurements and time domain electrical characterization. According to current-voltage measurements carried out in deionized water, the steady state current forms cycles characterized by redox peaks, the intensity and position of which reversibly change in response to H2O2, with a lower detection limit in the micromolar range. The sensitivity that is obtained is comparable with that of other electrochemical sensors that however, unlike our devices, require supporting electrolytes.
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48
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Preparation of cobalt-tetraphenylporphyrin/reduced graphene oxide nanocomposite and its application on hydrogen peroxide biosensor. Anal Chim Acta 2013; 768:69-75. [DOI: 10.1016/j.aca.2013.01.019] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2012] [Revised: 01/08/2013] [Accepted: 01/12/2013] [Indexed: 11/20/2022]
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