101
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Shanmugam M, Kim K. Electrodeposited gold dendrites at reduced graphene oxide as an electrocatalyst for nitrite and glucose oxidation. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.06.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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102
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Zhao A, Zhang Z, Zhang P, Xiao S, Wang L, Dong Y, Yuan H, Li P, Sun Y, Jiang X, Xiao F. 3D nanoporous gold scaffold supported on graphene paper: Freestanding and flexible electrode with high loading of ultrafine PtCo alloy nanoparticles for electrochemical glucose sensing. Anal Chim Acta 2016; 938:63-71. [PMID: 27619087 DOI: 10.1016/j.aca.2016.08.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 07/28/2016] [Accepted: 08/09/2016] [Indexed: 11/25/2022]
Abstract
Recent advances in on-body wearable medical apparatus and implantable devices drive the development of light-weight and bendable electrochemical sensors, which require the design of high-performance flexible electrode system. In this work, we reported a new type of freestanding and flexible electrode based on graphene paper (GP) supported 3D monolithic nanoporous gold (NPG) scaffold (NPG/GP), which was further modified by a layer of highly dense, well dispersed and ultrafine binary PtCo alloy nanoparticles via a facile and effective ultrasonic electrodeposition method. Our results demonstrated that benefited from the synergistic effect of the electrocatalytically active PtCo alloy nanoparticles, the large-active-area and highly conductive 3D NPG scaffold, and the mechanically strong and stable GP electrode substrate, the resultant PtCo alloy nanoparticles modified NPG/GP (PtCo/NPG/GP) exhibited high mechanical strength and good electrochemical sensing performances toward nonenzymatic detection of glucose, including a wide linear range from 35 μM- to 30 mM, a low detection limit of 5 μM (S/N = 3) and a high sensitivity of 7.84 μA cm(-2) mM(-1) as well as good selectivity, long-term stability and reproducibility. The practical application of the proposed PtCo/NPG/GP has also been demonstrated in in vitro detection of blood glucose in real clinic samples.
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Affiliation(s)
- Anshun Zhao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Zhaowei Zhang
- Key Laboratory of Detection of Mycotoxins, Ministry of Agriculture, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Penghui Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Shuang Xiao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Lu Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Yue Dong
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Hao Yuan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Peiwu Li
- Key Laboratory of Detection of Mycotoxins, Ministry of Agriculture, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Yimin Sun
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Xueliang Jiang
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Fei Xiao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan 430074, China.
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103
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Kamakoti V, Panneer Selvam A, Radha Shanmugam N, Muthukumar S, Prasad S. Flexible Molybdenum Electrodes towards Designing Affinity Based Protein Biosensors. BIOSENSORS 2016; 6:E36. [PMID: 27438863 PMCID: PMC5039655 DOI: 10.3390/bios6030036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 07/01/2016] [Accepted: 07/11/2016] [Indexed: 12/25/2022]
Abstract
Molybdenum electrode based flexible biosensor on porous polyamide substrates has been fabricated and tested for its functionality as a protein affinity based biosensor. The biosensor performance was evaluated using a key cardiac biomarker; cardiac Troponin-I (cTnI). Molybdenum is a transition metal and demonstrates electrochemical behavior upon interaction with an electrolyte. We have leveraged this property of molybdenum for designing an affinity based biosensor using electrochemical impedance spectroscopy. We have evaluated the feasibility of detection of cTnI in phosphate-buffered saline (PBS) and human serum (HS) by measuring impedance changes over a frequency window from 100 mHz to 1 MHz. Increasing changes to the measured impedance was correlated to the increased dose of cTnI molecules binding to the cTnI antibody functionalized molybdenum surface. We achieved cTnI detection limit of 10 pg/mL in PBS and 1 ng/mL in HS medium. The use of flexible substrates for designing the biosensor demonstrates promise for integration with a large-scale batch manufacturing process.
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Affiliation(s)
- Vikramshankar Kamakoti
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX 75080, USA.
| | - Anjan Panneer Selvam
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX 75080, USA.
| | - Nandhinee Radha Shanmugam
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX 75080, USA.
| | | | - Shalini Prasad
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX 75080, USA.
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104
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Wang Z, Yang M, Chen C, Zhang L, Zeng H. Selectable Ultrasensitive Detection of Hg(2+) with Rhodamine 6G-Modified Nanoporous Gold Optical Sensor. Sci Rep 2016; 6:29611. [PMID: 27403721 PMCID: PMC4940742 DOI: 10.1038/srep29611] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 06/22/2016] [Indexed: 01/18/2023] Open
Abstract
An extremely sensitive fluorescence sensor has been developed for selectively detection of mercury ions based on metallophilic Hg(2+)-Au(+) interactions, which results in an effective release of pre-adsorbed rhodamine 6G (R6G) molecules from the nanoporous gold substrate, associated with a significant decrease of fluorescence intensity. The optical sensor has a detection sensitivity down to 0.6 pM for Hg(2+) and CH3Hg(+) ions, in particular a superior selectivity in a complex aqueous system containing 13 different types of metal ions, meanwhile maintaining a long-term stability after 10 cycles. Such a fluorescence sensor combining multiple advantages therefore present promising potentials in various applications.
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Affiliation(s)
- Zheng Wang
- Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System (Ministry of Education), School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Min Yang
- Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System (Ministry of Education), School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Chao Chen
- Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System (Ministry of Education), School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Ling Zhang
- Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System (Ministry of Education), School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Heping Zeng
- Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System (Ministry of Education), School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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105
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Han L, Shao C, Liang B, Liu A. Genetically Engineered Phage-Templated MnO2 Nanowires: Synthesis and Their Application in Electrochemical Glucose Biosensor Operated at Neutral pH Condition. ACS APPLIED MATERIALS & INTERFACES 2016; 8:13768-13776. [PMID: 27228383 DOI: 10.1021/acsami.6b03266] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
To conveniently obtain one-dimensional MnO2 nanowires (NWs) with controlled structure and unique properties for electron transfer, the genetically engineered M13 phages were used as templates for precise nucleation and growth of MnO2 crystals in filamentous phage scaffolds, via the spontaneous oxidation of Mn(2+) in alkaline solution. It was found that the morphology of NWs could be tailored by the surface charge of M13 mutants. MnO2 crystals were uniformly distributed on the surface of negatively charged tetraglutamate-fused phage (M13-E4), significantly different from irregular MnO2 agglomeration on the weakly negatively charged wild-type phage and positively charged tetraarginine-fused phage. The as-synthesized M13-E4@MnO2 NWs could catalyze the electro-oxidation of H2O2 at neutral pH. To demonstrate the superiority of the electrocatalytic activity in the solution containing plenty of chloride ions at neutral pH, both glucose oxidase and as-prepared MnO2 NWs were used for fabricating the glucose biosensor. The proposed biosensor showed a wide linear range (5 μM to 2 mM glucose), a low limit of detection of 1.8 μM glucose (S/N = 3), good interassay and intra-assay reproducibility and satisfactory storage stability. Due to the superiorities of synthesis and electrochemical performance, the as-prepared MnO2 NWs are promising for applications in electrocatalysis, electrochemical sensor, and supercapacitor.
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Affiliation(s)
- Lei Han
- Institute for Biosensing, and College of Chemistry and Chemical Engineering, Qingdao University , Qingdao 266071, China
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences , 189 Songling Road, Qingdao 266101, China , and
| | - Changxu Shao
- Institute for Biosensing, and College of Chemistry and Chemical Engineering, Qingdao University , Qingdao 266071, China
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences , 189 Songling Road, Qingdao 266101, China , and
| | - Bo Liang
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences , 189 Songling Road, Qingdao 266101, China , and
| | - Aihua Liu
- Institute for Biosensing, and College of Chemistry and Chemical Engineering, Qingdao University , Qingdao 266071, China
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106
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An overview of dealloyed nanoporous gold in bioelectrochemistry. Bioelectrochemistry 2016; 109:117-26. [DOI: 10.1016/j.bioelechem.2015.12.008] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 12/23/2015] [Accepted: 12/30/2015] [Indexed: 02/07/2023]
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107
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Zhou C, Tang X, Xia Y, Li Z. Electrochemical Fabrication of Cobalt Oxides/Nanoporous Gold Composite Electrode and its Nonenzymatic Glucose Sensing Performance. ELECTROANAL 2016. [DOI: 10.1002/elan.201501177] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chaohui Zhou
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules; Hunan Normal University; Changsha, Hunan 410081 P. R. China
| | - Xueyong Tang
- Hunan Province Hospital of Traditional Chinese Medicine, Changsha; Hunan 410005 P. R. China
| | - Yue Xia
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules; Hunan Normal University; Changsha, Hunan 410081 P. R. China
| | - Zelin Li
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules; Hunan Normal University; Changsha, Hunan 410081 P. R. China
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108
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Lang XY, Liu BT, Shi XM, Li YQ, Wen Z, Jiang Q. Ultrahigh-Power Pseudocapacitors Based on Ordered Porous Heterostructures of Electron-Correlated Oxides. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2016; 3:1500319. [PMID: 27812465 PMCID: PMC5066634 DOI: 10.1002/advs.201500319] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 11/19/2015] [Indexed: 05/26/2023]
Abstract
Nanostructured transition-metal oxides can store high-density energy in fast surface redox reactions, but their poor conductivity causes remarkable reductions in the energy storage of most pseudocapacitors at high power delivery (fast charge/discharge rates). Here it is shown that electron-correlated oxide hybrid electrodes made of nanocrystalline vanadium sesquioxide and manganese dioxide with 3D and bicontinuous nanoporous architecture (NP V2O3/MnO2) have enhanced conductivity because of metallization of electron-correlated V2O3 skeleton via insulator-to-metal transition. The conductive V2O3 skeleton at ambient temperature enables fast electron and ion transports in the entire electrode and facilitates charge transfer at abundant V2O3/MnO2 interface. These merits significantly improve the pseudocapacitive behavior and rate capability of the constituent MnO2. Symmetric pseudocapacitors assembled with binder-free NP V2O3/MnO2 electrodes deliver ultrahigh electrical powers (up to ≈422 W cm23) while maintaining the high volumetric energy of thin-film lithium battery with excellent stability.
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Affiliation(s)
- Xing-You Lang
- Key Laboratory of Automobile Materials Jilin University Ministry of Education and School of Materials Science and Engineering Jilin University Changchun 130022 P.R. China
| | - Bo-Tian Liu
- Key Laboratory of Automobile Materials Jilin University Ministry of Education and School of Materials Science and Engineering Jilin University Changchun 130022 P.R. China
| | - Xiang-Mei Shi
- Key Laboratory of Automobile Materials Jilin University Ministry of Education and School of Materials Science and Engineering Jilin University Changchun 130022 P.R. China
| | - Ying-Qi Li
- Key Laboratory of Automobile Materials Jilin University Ministry of Education and School of Materials Science and Engineering Jilin University Changchun 130022 P.R. China
| | - Zi Wen
- Key Laboratory of Automobile Materials Jilin University Ministry of Education and School of Materials Science and Engineering Jilin University Changchun 130022 P.R. China
| | - Qing Jiang
- Key Laboratory of Automobile Materials Jilin University Ministry of Education and School of Materials Science and Engineering Jilin University Changchun 130022 P.R. China
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109
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Choi Y, Sinev I, Mistry H, Zegkinoglou I, Roldan Cuenya B. Probing the Dynamic Structure and Chemical State of Au Nanocatalysts during the Electrochemical Oxidation of 2-Propanol. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00057] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Y. Choi
- Department
of Physics, Ruhr University Bochum, 44780 Bochum, Germany
| | - I. Sinev
- Department
of Physics, Ruhr University Bochum, 44780 Bochum, Germany
| | - H. Mistry
- Department
of Physics, Ruhr University Bochum, 44780 Bochum, Germany
- Department
of Physics, University of Central Florida, Orlando, Florida 32816, United States
| | - I. Zegkinoglou
- Department
of Physics, Ruhr University Bochum, 44780 Bochum, Germany
| | - B. Roldan Cuenya
- Department
of Physics, Ruhr University Bochum, 44780 Bochum, Germany
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110
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Cobalt hexacyanoferrate electrodeposited on electrode with the assistance of laponite: The enhanced electrochemical sensing of captopril. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.03.080] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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111
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Dai L, Mo S, Qin Q, Zhao X, Zheng N. Carbon Monoxide-Assisted Synthesis of Ultrathin PtCu3 Alloy Wavy Nanowires and Their Enhanced Electrocatalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:1572-1577. [PMID: 26808784 DOI: 10.1002/smll.201502741] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 11/04/2015] [Indexed: 06/05/2023]
Abstract
Glucose sensing that is not influenced by the presence of chloride, uric acid, ascorbic acid and dopamine is achieved on ultrathin PtCu3 alloy wavy nanowires (WNWs). These WNWs are synthesized by a facile, one-pot, templateless hydrothermal method in an atmosphere of CO, which is critical to the formation process. Their structural properties, including the abundance of twinning defects, make the as-prepared PtCu3 WNWs excellent electrocatalysts for methanol oxidation as well as great sensors for glucose.
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Affiliation(s)
- Lei Dai
- State Key Laboratory for Physical Chemistryof Solid Surfaces, Collaborative Innovation Center of Chemistryfor Energy Materials, and Engineering ResearchCenter for Nano-Preparation Technologyof Fujian Province, College of Chemistry and Chemical EngineeringXiamen University, Xiamen, 361005, P. R. China
| | - Shiguang Mo
- State Key Laboratory for Physical Chemistryof Solid Surfaces, Collaborative Innovation Center of Chemistryfor Energy Materials, and Engineering ResearchCenter for Nano-Preparation Technologyof Fujian Province, College of Chemistry and Chemical EngineeringXiamen University, Xiamen, 361005, P. R. China
| | - Qing Qin
- State Key Laboratory for Physical Chemistryof Solid Surfaces, Collaborative Innovation Center of Chemistryfor Energy Materials, and Engineering ResearchCenter for Nano-Preparation Technologyof Fujian Province, College of Chemistry and Chemical EngineeringXiamen University, Xiamen, 361005, P. R. China
| | - Xiaojing Zhao
- State Key Laboratory for Physical Chemistryof Solid Surfaces, Collaborative Innovation Center of Chemistryfor Energy Materials, and Engineering ResearchCenter for Nano-Preparation Technologyof Fujian Province, College of Chemistry and Chemical EngineeringXiamen University, Xiamen, 361005, P. R. China
| | - Nanfeng Zheng
- State Key Laboratory for Physical Chemistryof Solid Surfaces, Collaborative Innovation Center of Chemistryfor Energy Materials, and Engineering ResearchCenter for Nano-Preparation Technologyof Fujian Province, College of Chemistry and Chemical EngineeringXiamen University, Xiamen, 361005, P. R. China
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112
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Su Y, Luo B, Zhang JZ. Controllable Cobalt Oxide/Au Hierarchically Nanostructured Electrode for Nonenzymatic Glucose Sensing. Anal Chem 2016; 88:1617-24. [DOI: 10.1021/acs.analchem.5b03396] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Yingying Su
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China
- Department
of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States
| | - Binbin Luo
- Department
of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States
| | - Jin Zhong Zhang
- Department
of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States
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113
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Sheng Q, Liu D, Zheng J. NiCo alloy nanoparticles anchored on polypyrrole/reduced graphene oxide nanocomposites for nonenzymatic glucose sensing. NEW J CHEM 2016. [DOI: 10.1039/c6nj01264g] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of PPy and graphene oxide was used as an effective supporting substrate for the loading of alloys.
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Affiliation(s)
- Qinglin Sheng
- Institute of Analytical Science
- Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry
- Northwest University
- Xi'an
- China
| | - Duo Liu
- Institute of Analytical Science
- Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry
- Northwest University
- Xi'an
- China
| | - Jianbin Zheng
- Institute of Analytical Science
- Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry
- Northwest University
- Xi'an
- China
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114
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Zhu H, Li L, Zhou W, Shao Z, Chen X. Advances in non-enzymatic glucose sensors based on metal oxides. J Mater Chem B 2016; 4:7333-7349. [DOI: 10.1039/c6tb02037b] [Citation(s) in RCA: 273] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review summarizes the advances in non-enzymatic glucose sensors based on different metal oxides (ZnO, CuO/Cu2O, NiO,etc.) and their composites.
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Affiliation(s)
- Hua Zhu
- Laboratory for Advanced Interdisciplinary Research
- Center for Personalized Medicine/Institutes of Translational Medicine
- The First Affiliated Hospital of Wenzhou Medical University
- Wenzhou
- China
| | - Li Li
- Faculty of Energy Science and Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Wei Zhou
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing 210009
- P. R. China
| | - Zongping Shao
- Faculty of Energy Science and Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
| | - Xianjian Chen
- Laboratory for Advanced Interdisciplinary Research
- Center for Personalized Medicine/Institutes of Translational Medicine
- The First Affiliated Hospital of Wenzhou Medical University
- Wenzhou
- China
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115
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Shi J, Mahr C, Murshed MM, Zielasek V, Rosenauer A, Gesing TM, Bäumer M, Wittstock A. A versatile sol–gel coating for mixed oxides on nanoporous gold and their application in the water gas shift reaction. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02205c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Ceria–titania mixed oxides on a structured nanoporous gold support result in highly active and durable catalysts for the water-gas shift reaction.
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Affiliation(s)
- Junjie Shi
- Institute of Applied and Physical Chemistry and Center for Environmental Research and Sustainable Technology
- University Bremen
- Bremen
- Germany
- MAPEX Center for Materials and Processes
| | - Christoph Mahr
- Institute of Solid State Physics
- University Bremen
- Bremen
- Germany
- MAPEX Center for Materials and Processes
| | - M. Mangir Murshed
- Solid State Chemical Crystallography, Institute of Inorganic Chemistry and Crystallography/FB02
- University Bremen
- Bremen
- Germany
- MAPEX Center for Materials and Processes
| | - Volkmar Zielasek
- Institute of Applied and Physical Chemistry and Center for Environmental Research and Sustainable Technology
- University Bremen
- Bremen
- Germany
- MAPEX Center for Materials and Processes
| | - Andreas Rosenauer
- Institute of Solid State Physics
- University Bremen
- Bremen
- Germany
- MAPEX Center for Materials and Processes
| | - Thorsten M. Gesing
- Solid State Chemical Crystallography, Institute of Inorganic Chemistry and Crystallography/FB02
- University Bremen
- Bremen
- Germany
- MAPEX Center for Materials and Processes
| | - Marcus Bäumer
- Institute of Applied and Physical Chemistry and Center for Environmental Research and Sustainable Technology
- University Bremen
- Bremen
- Germany
- MAPEX Center for Materials and Processes
| | - Arne Wittstock
- Institute of Applied and Physical Chemistry and Center for Environmental Research and Sustainable Technology
- University Bremen
- Bremen
- Germany
- MAPEX Center for Materials and Processes
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116
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Cheng X, Zhang J, Chang H, Luo L, Nie F, Feng X. High performance Cu/Cu2O nanohybrid electrocatalyst for nonenzymatic glucose detection. J Mater Chem B 2016; 4:4652-4656. [DOI: 10.1039/c6tb01158f] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Described herein are Cu/Cu2O nanohybrids preparedviapotential oscillation, and their high performance for nonenzymatic glucose detection applications.
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Affiliation(s)
- Xiqing Cheng
- Department of Chemistry
- College of Science
- Shanghai University
- Shanghai
- P. R. China
| | - Jun Zhang
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
- P. R. China
| | - Hucheng Chang
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
- P. R. China
| | - Liqiang Luo
- Department of Chemistry
- College of Science
- Shanghai University
- Shanghai
- P. R. China
| | - Fuqiang Nie
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
- P. R. China
| | - Xinjian Feng
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
- P. R. China
- College of Chemistry
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117
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Zhang C, Huang B, Qian L, Yuan S, Wang S, Chen R. Electrochemical Biosensor Based on Nanoporous Au/CoO Core-Shell Material with Synergistic Catalysis. Chemphyschem 2015; 17:98-104. [DOI: 10.1002/cphc.201500854] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Chao Zhang
- School of Physics; Huazhong University of Science and Technology, 1037; Luoyu Road, Hongshan District Wuhan 430074 China
| | - Bin Huang
- School of Mechanical Science and Engineering; Huazhong University of Science and Technology, 1037; Luoyu Road, Hongshan District Wuhan 430074 China
| | - Lihua Qian
- School of Physics; Huazhong University of Science and Technology, 1037; Luoyu Road, Hongshan District Wuhan 430074 China
| | - Songliu Yuan
- School of Physics; Huazhong University of Science and Technology, 1037; Luoyu Road, Hongshan District Wuhan 430074 China
| | - Shuai Wang
- School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology, 1037; Luoyu Road, Hongshan District Wuhan 430074 China
| | - Rong Chen
- School of Mechanical Science and Engineering; Huazhong University of Science and Technology, 1037; Luoyu Road, Hongshan District Wuhan 430074 China
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118
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Taurino I, Sanzó G, Mazzei F, Favero G, De Micheli G, Carrara S. Fast synthesis of platinum nanopetals and nanospheres for highly-sensitive non-enzymatic detection of glucose and selective sensing of ions. Sci Rep 2015; 5:15277. [PMID: 26515434 PMCID: PMC4626773 DOI: 10.1038/srep15277] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 09/21/2015] [Indexed: 11/09/2022] Open
Abstract
Novel methods to obtain Pt nanostructured electrodes have raised particular interest due to their high performance in electrochemistry. Several nanostructuration methods proposed in the literature use costly and bulky equipment or are time-consuming due to the numerous steps they involve. Here, Pt nanostructures were produced for the first time by one-step template-free electrodeposition on Pt bare electrodes. The change in size and shape of the nanostructures is proven to be dependent on the deposition parameters and on the ratio between sulphuric acid and chloride-complexes (i.e., hexachloroplatinate or tetrachloroplatinate). To further improve the electrochemical properties of electrodes, depositions of Pt nanostructures on previously synthesised Pt nanostructures are also performed. The electroactive surface areas exhibit a two order of magnitude improvement when Pt nanostructures with the smallest size are used. All the biosensors based on Pt nanostructures and immobilised glucose oxidase display higher sensitivity as compared to bare Pt electrodes. Pt nanostructures retained an excellent electrocatalytic activity towards the direct oxidation of glucose. Finally, the nanodeposits were proven to be an excellent solid contact for ion measurements, significantly improving the time-stability of the potential. The use of these new nanostructured coatings in electrochemical sensors opens new perspectives for multipanel monitoring of human metabolism.
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Affiliation(s)
- Irene Taurino
- Laboratory of Integrated Systems, EPFL - École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Gabriella Sanzó
- Laboratory of Integrated Systems, EPFL - École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.,Department of Chemistry and Drug Technologies, Sapienza University of Rome, Italy
| | - Franco Mazzei
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Italy
| | - Gabriele Favero
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Italy
| | - Giovanni De Micheli
- Laboratory of Integrated Systems, EPFL - École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Sandro Carrara
- Laboratory of Integrated Systems, EPFL - École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
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119
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Dong C, Zhong H, Kou T, Frenzel J, Eggeler G, Zhang Z. Three-Dimensional Cu Foam-Supported Single Crystalline Mesoporous Cu2O Nanothorn Arrays for Ultra-Highly Sensitive and Efficient Nonenzymatic Detection of Glucose. ACS APPLIED MATERIALS & INTERFACES 2015; 7:20215-23. [PMID: 26305112 DOI: 10.1021/acsami.5b05738] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Highly sensitive and efficient biosensors play a crucial role in clinical, environmental, industrial, and agricultural applications, and tremendous efforts have been dedicated to advanced electrode materials with superior electrochemical activities and low cost. Here, we report a three-dimensional binder-free Cu foam-supported Cu2O nanothorn array electrode developed via facile electrochemistry. The nanothorns growing in situ along the specific direction of <011> have single crystalline features and a mesoporous surface. When being used as a potential biosensor for nonenzyme glucose detection, the hybrid electrode exhibits multistage linear detection ranges with ultrahigh sensitivities (maximum of 97.9 mA mM(-1) cm(-2)) and an ultralow detection limit of 5 nM. Furthermore, the electrode presents outstanding selectivity and stability toward glucose detection. The distinguished performances endow this novel electrode with powerful reliability for analyzing human serum samples. These unprecedented sensing characteristics could be ascribed to the synergistic action of superior electrochemical catalytic activity of nanothorn arrays with dramatically enhanced surface area and intimate contact between the active material (Cu2O) and current collector (Cu foam), concurrently supplying good conductivity for electron/ion transport during glucose biosensing. Significantly, our findings could guide the fabrication of new metal oxide nanostructures with well-organized morphologies and unique properties as well as low materials cost.
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Affiliation(s)
- Chaoqun Dong
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University , Jingshi Road 17923, Jinan 250061, P. R. China
| | - Hua Zhong
- Dermatological Department, Qilu Hospital of Shandong University , Jinan Culture Road 107, Jinan 250012, P. R. China
| | - Tianyi Kou
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University , Jingshi Road 17923, Jinan 250061, P. R. China
| | - Jan Frenzel
- Institut für Werkstoffe, Ruhr Universität Bochum , Bochum 44780, Germany
| | - Gunther Eggeler
- Institut für Werkstoffe, Ruhr Universität Bochum , Bochum 44780, Germany
| | - Zhonghua Zhang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University , Jingshi Road 17923, Jinan 250061, P. R. China
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120
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Qiu K, Chen X, Ci S, Li W, Bo Z, Cen K, Wen Z. Facile Preparation of Nickel Nanoparticle-Modified Carbon Nanotubes with Application as a Nonenzymatic Electrochemical Glucose Sensor. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1076829] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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121
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Li C, Yamahara H, Lee Y, Tabata H, Delaunay JJ. CuO nanowire/microflower/nanowire modified Cu electrode with enhanced electrochemical performance for non-enzymatic glucose sensing. NANOTECHNOLOGY 2015; 26:305503. [PMID: 26159235 DOI: 10.1088/0957-4484/26/30/305503] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
CuO nanowire/microflower structure on Cu foil is synthesized by annealing a Cu(OH)2 nanowire/CuO microflower structure at 250 °C in air. The nanowire/microflower structure with its large surface area leads to an efficient catalysis and charge transfer in glucose detection, achieving a high sensitivity of 1943 μA mM(-1) cm(-2), a wide linear range up to 4 mM and a low detection limit of 4 μM for amperometric glucose sensing in alkaline solution. With a second consecutive growth of CuO nanowires on the microflowers, the sensitivity of the obtained CuO nanowire/microflower/nanowire structure further increases to 2424 μA mM(-1) cm(-2), benefiting from an increased number of electrochemically active sites. The enhanced electrocatalytic performance of the CuO nanowire/microflower/nanowire electrode compared to the CuO nanowire/microflower electrode, CuO nanowire electrode and CuxO film electrode provides evidence for the significant role of available surface area for electrocatalysis. The rational combination of CuO nanowire and microflower nanostructures into a nanowire supporting microflower branching nanowires structure makes it a promising composite nanostructure for use in CuO based electrochemical sensors with promising analytical properties.
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Affiliation(s)
- Changli Li
- School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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122
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Nickel-Cobalt Double Hydroxide Decorated Carbon Nanotubes via Aqueous Electrophoretic Deposition towards Catalytic Glucose Detection. ACTA ACUST UNITED AC 2015. [DOI: 10.4028/www.scientific.net/kem.654.70] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we present a facile technique based on electrophoretic deposition (EPD) to produce transition metal hydroxide decorated carbon nanotubes (CNT) for electrochemical applications. We specifically explore the performance of nickel-cobalt hydroxides given their high activity, conductivity and stability as compared to the individual hydroxides. We exploit the high local pH at the negative electrodes during water-based EPD to form nanoparticles of nickel-cobalt hydroxides in situ on the CNT surface. We focus our work here on obtaining functional and conductive deposits on CNTs. The hydrophilic binderless deposits of Ni-Co double hydroxide decorated CNTs obtained here are used for non-enzymatic glucose detection. XPS data and electrochemical testing reveal difference in the deposited double hydroxide based on chronology of charging salt addition even at the same ratio. When cobalt and nickel salts are sequentially added at a ratio of 1:1, the deposited double hydroxides show excellent glucose sensitivity of ~3300μA/mM.cm2 at applied potential of 0.55V vs. Ag/AgCl reference electrode.
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123
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Li Z, Xin Y, Zhang Z, Wu H, Wang P. Rational design of binder-free noble metal/metal oxide arrays with nanocauliflower structure for wide linear range nonenzymatic glucose detection. Sci Rep 2015; 5:10617. [PMID: 26068705 PMCID: PMC4464387 DOI: 10.1038/srep10617] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 04/21/2015] [Indexed: 11/21/2022] Open
Abstract
One-dimensional nanocomposites of metal-oxide and noble metal were expected to present superior performance for nonenzymatic glucose detection due to its good conductivity and high catalytic activity inherited from noble metal and metal oxide respectively. As a proof of concept, we synthesized gold and copper oxide (Au/CuO) composite with unique one-dimensional nanocauliflowers structure. Due to the nature of the synthesis method, no any foreign binder was needed in keeping either Au or CuO in place. To the best of our knowledge, this is the first attempt in combining metal oxide and noble metal in a binder-free style for fabricating nonenzymatic glucose sensor. The Au/CuO nanocauliflowers with large electrochemical active surface and high electrolyte contact area would promise a wide linear range and high sensitive detection of glucose with good stability and reproducibility due to its good electrical conductivity of Au and high electrocatalytic activity of CuO.
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Affiliation(s)
- Zhenzhen Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yanmei Xin
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Zhonghai Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Hongjun Wu
- Provincial Key Laboratory of Oil &Gas Chemical Technology, College of Chemistry &Chemical Engineering, Northeast Petroleum University, Daqing 163318, China
| | - Peng Wang
- Water Desalination and Reuse Center, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
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124
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Chen X, Guo Z, Liu ZG, Jiang YJ, Zhan DP, Liu JH, Huang XJ. A Versatile Environmental Impedimetric Sensor for Ultrasensitive Determination of Persistent Organic Pollutants (POPs) and Highly Toxic Inorganic Ions. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2015; 2:1500013. [PMID: 27980935 PMCID: PMC5115365 DOI: 10.1002/advs.201500013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/08/2015] [Indexed: 06/01/2023]
Abstract
An impedimetric sensor for persistent toxic substances, including organic pollutants and toxic inorganic ions is presented. The persistent toxic substances are detected using an ultrasensitive technique that is based on electron-transfer blockage. This depends on the formation of guest-host complexes, hydrogen bonding, or a cyclodextrin (CD)-metal complex (Mm(OH)n-β-CD) structure between the target pollutants and β-CD.
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Affiliation(s)
- Xing Chen
- Nanomaterials and Environment Detection Laboratory Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei 230031 P. R. China
| | - Zheng Guo
- Nanomaterials and Environment Detection Laboratory Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei 230031 P. R. China
| | - Zhong-Gang Liu
- Nanomaterials and Environment Detection Laboratory Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei 230031 P. R. China; Department of Chemistry University of Science and Technology of China Hefei 230026 P. R. China
| | - Yu-Jing Jiang
- Nanomaterials and Environment Detection Laboratory Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei 230031 P. R. China; Department of Chemistry University of Science and Technology of China Hefei 230026 P. R. China
| | - Dong-Ping Zhan
- State Key Laboratory for Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Jin-Huai Liu
- Nanomaterials and Environment Detection Laboratory Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei 230031 P. R. China
| | - Xing-Jiu Huang
- Nanomaterials and Environment Detection Laboratory Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei 230031 P. R. China; Department of Chemistry University of Science and Technology of China Hefei 230026 P. R. China
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125
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Wang Z, Liu J, Qin C, Yu H, Xia X, Wang C, Zhang Y, Hu Q, Zhao W. Dealloying of Cu-Based Metallic Glasses in Acidic Solutions: Products and Energy Storage Applications. NANOMATERIALS 2015; 5:697-721. [PMID: 28347030 PMCID: PMC5312890 DOI: 10.3390/nano5020697] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 04/17/2015] [Accepted: 04/23/2015] [Indexed: 11/16/2022]
Abstract
Dealloying, a famous ancient etching technique, was used to produce nanoporous metals decades ago. With the development of dealloying techniques and theories, various interesting dealloying products including nanoporous metals/alloys, metal oxides and composites, which exhibit excellent catalytic, optical and sensing performance, have been developed in recent years. As a result, the research on dealloying products is of great importance for developing new materials with superior physical and chemical properties. In this paper, typical dealloying products from Cu-based metallic glasses after dealloying in hydrofluoric acid and hydrochloric acid solutions are summarized. Several potential application fields of these dealloying products are discussed. A promising application of nanoporous Cu (NPC) and NPC-contained composites related to the energy storage field is introduced. It is expected that more promising dealloying products could be developed for practical energy storage applications.
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Affiliation(s)
- Zhifeng Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
- Key Laboratory for New Type of Functional Materials in Hebei Province, Hebei University of Technology, Tianjin 300130, China.
- CITIC Dicastal Co. Ltd., Qinhuangdao 066011, China.
| | - Jiangyun Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Chunling Qin
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Hui Yu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Xingchuan Xia
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Chaoyang Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Yanshan Zhang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Qingfeng Hu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Weimin Zhao
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
- CITIC Dicastal Co. Ltd., Qinhuangdao 066011, China.
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126
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Li C, Dag Ö, Dao TD, Nagao T, Sakamoto Y, Kimura T, Terasaki O, Yamauchi Y. Electrochemical synthesis of mesoporous gold films toward mesospace-stimulated optical properties. Nat Commun 2015; 6:6608. [PMID: 25799072 PMCID: PMC4382992 DOI: 10.1038/ncomms7608] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Accepted: 02/11/2015] [Indexed: 12/25/2022] Open
Abstract
Mesoporous gold (Au) films with tunable pores are expected to provide fascinating optical properties stimulated by the mesospaces, but they have not been realized yet because of the difficulty of controlling the Au crystal growth. Here, we report a reliable soft-templating method to fabricate mesoporous Au films using stable micelles of diblock copolymers, with electrochemical deposition advantageous for precise control of Au crystal growth. Strong field enhancement takes place around the center of the uniform mesopores as well as on the walls between the pores, leading to the enhanced light scattering as well as surface-enhanced Raman scattering (SERS), which is understandable, for example, from Babinet principles applied for the reverse system of nanoparticle ensembles.
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Affiliation(s)
- Cuiling Li
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Ömer Dag
- Department of Chemistry, Bilkent University, 06800 Ankara, Turkey
| | - Thang Duy Dao
- 1] World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan [2] PRESTO and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan [3] Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Tadaaki Nagao
- 1] World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan [2] PRESTO and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Yasuhiro Sakamoto
- 1] PRESTO and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan [2] Department of Physics, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Tatsuo Kimura
- Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Shimoshidami, Moriyama, Nagoya 463-8560, Japan
| | - Osamu Terasaki
- 1] Graduate School of EEWS (BK21Plus), KAIST, Daejeon 305-701, Korea [2] Department of Materials and Environmental Chemistry, EXSELENT, Stockholm University, 10691 Stockholm, Sweden
| | - Yusuke Yamauchi
- 1] World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan [2] Department of Nanoscience and Nanoengineering, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
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127
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Rapid, sensitive, and reusable detection of glucose by a robust radiofrequency integrated passive device biosensor chip. Sci Rep 2015; 5:7807. [PMID: 25588958 PMCID: PMC4295091 DOI: 10.1038/srep07807] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 12/08/2014] [Indexed: 11/21/2022] Open
Abstract
Tremendous demands for sensitive and reliable label-free biosensors have stimulated intensive research into developing miniaturized radiofrequency resonators for a wide range of biomedical applications. Here, we report the development of a robust, reusable radiofrequency resonator based integrated passive device biosensor chip fabricated on a gallium arsenide substrate for the detection of glucose in water-glucose solutions and sera. As a result of the highly concentrated electromagnetic energy between the two divisions of an intertwined spiral inductor coupled with an interdigital capacitor, the proposed glucose biosensor chip exhibits linear detection ranges with high sensitivity at center frequency. This biosensor, which has a sensitivity of up to 199 MHz/mgmL−1 and a short response time of less than 2 sec, exhibited an ultralow detection limit of 0.033 μM and a reproducibility of 0.61% relative standard deviation. In addition, the quantities derived from the measured S-parameters, such as the propagation constant (γ), impedance (Z), resistance (R), inductance (L), conductance (G) and capacitance (C), enabled the effective multi-dimensional detection of glucose.
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128
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Li C, Kurniawan M, Sun D, Tabata H, Delaunay JJ. Nanoporous CuO layer modified Cu electrode for high performance enzymatic and non-enzymatic glucose sensing. NANOTECHNOLOGY 2015; 26:015503. [PMID: 25493443 DOI: 10.1088/0957-4484/26/1/015503] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Nanoporous CuO layer on Cu foil with a thick Cu2O interlayer is synthesized via post annealing of previously fabricated Cu(OH)2 nanowires at 500 °C under an oxygen flow. The formation of the thick sandwiched Cu2O layer is realized through the outward diffusion of Cu ions and subsequent oxidation. An O2 pressure above the dissociation pressure of CuO is used to form a CuO layer at the outer surface of the structure, thus realizing a low cost structure having a porous and high isoelectric point layer. The Cu/Cu2O/CuO structure is used as an efficient electrode for glucose sensing. Sensitivities of [Formula: see text] at 0.8 V versus Ag/AgCl and 1066 μA mM(-1) cm(-2) at 0.6 V versus Ag/AgCl are achieved in an enzymatic and non-enzymatic glucose sensing schemes, respectively. The improved electrochemical sensing ability might be attributed to the efficient electrocatalytic reaction on the high crystal quality CuO layer and the porous structure.
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Affiliation(s)
- Changli Li
- School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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129
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130
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Wang X, Zhang P, Vongehr S, Tang S, Wang Y, Meng X. Large-scale fabrication of porous bulk silver thin sheets with tunable porosity for high-performance binder-free supercapacitor electrodes. RSC Adv 2015. [DOI: 10.1039/c5ra06679d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report a novel method for the large-scale fabrication of porous bulk silver thin sheets (PSTS) built from three-dimensionally interconnected nanoparticles (NPs).
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Affiliation(s)
- Xiangyu Wang
- Institute of Materials Engineering
- National Laboratory of Solid State Microstructures
- College of Engineering Applied Sciences
- Nanjing University
- P. R. China
| | - Pinghui Zhang
- Institute of Materials Engineering
- National Laboratory of Solid State Microstructures
- College of Engineering Applied Sciences
- Nanjing University
- P. R. China
| | - Sascha Vongehr
- Institute of Materials Engineering
- National Laboratory of Solid State Microstructures
- College of Engineering Applied Sciences
- Nanjing University
- P. R. China
| | - Shaochun Tang
- Institute of Materials Engineering
- National Laboratory of Solid State Microstructures
- College of Engineering Applied Sciences
- Nanjing University
- P. R. China
| | - Yongguang Wang
- Institute of Materials Engineering
- National Laboratory of Solid State Microstructures
- College of Engineering Applied Sciences
- Nanjing University
- P. R. China
| | - Xiangkang Meng
- Institute of Materials Engineering
- National Laboratory of Solid State Microstructures
- College of Engineering Applied Sciences
- Nanjing University
- P. R. China
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131
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Li M, Su Y, Zhao J, Geng H, Zhang J, Zhang L, Yang C, Zhang Y. One-pot preparation of thin nanoporous copper foils with enhanced light absorption and SERS properties. CrystEngComm 2015. [DOI: 10.1039/c4ce01967a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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132
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Xiao C, Liu YL, Xu JQ, Lv SW, Guo S, Huang WH. Real-time monitoring of H2O2 release from single cells using nanoporous gold microelectrodes decorated with platinum nanoparticles. Analyst 2015; 140:3753-8. [DOI: 10.1039/c4an02056a] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We present a self-supported nanoporous gold/PtNPs microelectrode with the sub-nanomolar sensitivity to detect H2O2 release from single cells.
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Affiliation(s)
- Chong Xiao
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- China
| | - Yan-Ling Liu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- China
| | - Jia-Quan Xu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- China
| | - Song-Wei Lv
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- China
| | - Shan Guo
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- China
| | - Wei-Hua Huang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- China
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133
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Zhang P, Hou X, Li S, Liu D, Dong M. Curvature effect of O 2 adsorption and dissociation on SiC nanotubes and nanosheet. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2014.11.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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134
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Ramasamy R, Ramachandran K, Philip GG, Ramachandran R, Therese HA, Gnana kumar G. Design and development of Co3O4/NiO composite nanofibers for the application of highly sensitive and selective non-enzymatic glucose sensors. RSC Adv 2015. [DOI: 10.1039/c5ra11739a] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Cobaltosic oxide/nickel oxide (Co3O4/NiO) composite nanofibers were synthesizedviaan electrospinning technique and their electrocatalytic activities toward non-enzymatic glucose sensors were evaluated in detail.
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Affiliation(s)
| | - K. Ramachandran
- Department of Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625 021
- India
| | | | - Rasu Ramachandran
- Department of Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625 021
- India
| | | | - G. Gnana kumar
- Department of Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625 021
- India
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135
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Electrochemical fabrication of stalactite-like copper micropillar arrays via surface rebuilding for ultrasensitive nonenzymatic sensing of glucose. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.11.041] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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136
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Xu Y, Ke X, Yu C, Liu S, Zhao J, Cui G, Higgins D, Chen Z, Li Q, Wu G. A strategy for fabricating nanoporous gold films through chemical dealloying of electrochemically deposited Au-Sn alloys. NANOTECHNOLOGY 2014; 25:445602. [PMID: 25325248 DOI: 10.1088/0957-4484/25/44/445602] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report a novel strategy for the fabrication of nanoporous gold (NPG) films. The fabrication process involves the electrodeposition of a gold-tin alloy, followed by subsequent chemical dealloying of tin. Scanning electron microscopy (SEM) images show a bicontinuous nanoporous structure formed on the substrates after chemical dealloying. Energy dispersive x-ray (EDX) analysis indicates that there are no impurities in the Au-Sn alloy film with an average composition of 58 at. % Au and 42 at. % Sn. After dealloying, only gold remains in the NPG film indicating the effectiveness of this technique. X-ray diffraction (XRD) results reveal that the as-prepared Au-Sn alloy film is composed of two phases (Au5Sn and AuSn), while the NPG film is composed of a single phase (Au). We demonstrate that this approach enables the fabrication of NPG films, either freestanding or supported on various conductive substrates such as copper foil, stainless steel sheet and nickel foam. The resulting NPG electrode exhibits enhanced electrocatalytic activity toward both H2O2 reduction and methanol oxidation compared to the polished Au disc electrode. Our strategy provides a general method to fabricate high quality NPG films on conductive substrates, which will broaden the application potential of NPG or NPG-based materials in various fields such as catalysis, optics and sensor technology.
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Affiliation(s)
- Yantong Xu
- Electronic Packaging Electrochemistry Laboratory, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
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137
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Wang T, Yu Y, Tian H, Hu J. A Novel Non-Enzymatic Glucose Sensor Based on Cobalt Nanoparticles Implantation-Modified Indium Tin Oxide Electrode. ELECTROANAL 2014. [DOI: 10.1002/elan.201400347] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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138
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Han GF, Xiao BB, Lang XY, Wen Z, Zhu YF, Zhao M, Li JC, Jiang Q. Self-grown Ni(OH)(2) layer on bimodal nanoporous AuNi alloys for enhanced electrocatalytic activity and stability. ACS APPLIED MATERIALS & INTERFACES 2014; 6:16966-16973. [PMID: 25216380 DOI: 10.1021/am504541a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Au nanostructures as catalysts toward electrooxidation of small molecules generally suffer from ultralow surface adsorption capability and stability. Here, we report Ni(OH)2 layer decorated nanoporous (NP) AuNi alloys with a three-dimensional and bimodal porous architecture, which are facilely fabricated by a combination of chemical dealloying and in situ surface segregation, for the enhanced electrocatalytic performance in biosensors. As a result of the self-grown Ni(OH)2 on the AuNi alloys with a coherent interface, which not only enhances adsorption energy of Au and electron transfer of AuNi/Ni(OH)2 but also prohibits the surface diffusion of Au atoms, the NP composites are enlisted to exhibit significant enhancement in both electrocatalytic activity and stability toward glucose electrooxidation. The highly reliable glucose biosensing with exceptional reproducibility and selectivity as well as quick response makes it a promising candidate as electrode materials for the application in nonenzymatic glucose biosensors.
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Affiliation(s)
- Gao-Feng Han
- Key Laboratory of Automobile Materials, Ministry of Education, and School of Materials Science and Engineering, Jilin University , Changchun 130022, China
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139
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Guo MM, Yin XL, Zhou CH, Xia Y, Huang W, Li Z. Ultrasensitive nonenzymatic sensing of glucose on Ni(OH) 2 -coated nanoporous gold film with two pairs of electron mediators. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.07.135] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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140
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Pedireddy S, Lee HK, Tjiu WW, Phang IY, Tan HR, Chua SQ, Troadec C, Ling XY. One-step synthesis of zero-dimensional hollow nanoporous gold nanoparticles with enhanced methanol electrooxidation performance. Nat Commun 2014; 5:4947. [DOI: 10.1038/ncomms5947] [Citation(s) in RCA: 187] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Accepted: 08/10/2014] [Indexed: 12/25/2022] Open
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141
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Yang M, Lee KG, Kim JW, Lee SJ, Huh YS, Choi BG. Highly ordered gold-nanotube films for flow-injection amperometric glucose biosensors. RSC Adv 2014. [DOI: 10.1039/c4ra05273k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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142
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Li F, Kosel J. An efficient biosensor made of an electromagnetic trap and a magneto-resistive sensor. Biosens Bioelectron 2014; 59:145-50. [DOI: 10.1016/j.bios.2014.03.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 03/06/2014] [Accepted: 03/07/2014] [Indexed: 10/25/2022]
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143
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Jou AFJ, Tai NH, Ho JAA. Gold Nanobone/Carbon Nanotube Hybrids for the Efficient Nonenzymatic Detection of H2O2and Glucose. ELECTROANAL 2014. [DOI: 10.1002/elan.201400140] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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144
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Wei T, Chen Y, Tu W, Lan Y, Dai Z. A phosphomolybdic acid anion probe-based label-free, stable and simple electrochemical biosensing platform. Chem Commun (Camb) 2014; 50:9357-60. [DOI: 10.1039/c4cc03555k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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145
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Xiao X, Ulstrup J, Li H, Wang M, Zhang J, Si P. Nanoporous gold assembly of glucose oxidase for electrochemical biosensing. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.02.146] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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146
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Zhang P, Zhao X, Zhang X, Lai Y, Wang X, Li J, Wei G, Su Z. Electrospun doping of carbon nanotubes and platinum nanoparticles into the β-phase polyvinylidene difluoride nanofibrous membrane for biosensor and catalysis applications. ACS APPLIED MATERIALS & INTERFACES 2014; 6:7563-7571. [PMID: 24754739 DOI: 10.1021/am500908v] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A novel β-phase polyvinylidene difluoride (PVDF) nanofibrous membrane decorated with multiwalled carbon nanotubes (MWCNTs) and platinum nanoparticles (PtNPs) was fabricated by an improved electrospinning technique. The morphology of the fabricated PVDF-MWCNT-PtNP nanofibrous membrane was observed by scanning electron microscopy, and the formation of high β-phase in the hybrid nanofibrous membrane was investigated by Fourier transform infrared spectroscopy and differential scanning calorimetry. The uniform dispersion of MWCNTs and PtNPs in the PVDF hybrid nanofibrous membrane and their interaction were explored by transmission electron microscopy and X-ray diffraction. For the first time, we utilized this created PVDF-MWCNT-PtNP nanofibrous membrane for biosensor and catalysis applications. The nonenzymatic amperometric biosensor with highly stable and sensitive, and selective detection of both H2O2 and glucose was successfully fabricated based on the electrospun PVDF-MWCNT-PtNP nanofibrous membrane. In addition, the catalysis of the hybrid nanofibrous membrane for oxygen reduction reaction was tested, and a good catalysis performance was found. We anticipate that the strategies utilized in this work will not only guide the further design of functional nanofiber-based biomaterials and biodevices but also extend the potential applications in energy storage, cytology, and tissue engineering.
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Affiliation(s)
- Panpan Zhang
- Beijing Key Laboratory on Preparation and Processing of Novel Polymeric Materials, Beijing University of Chemical Technology , 100029 Beijing, China
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147
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Ci S, Mao S, Huang T, Wen Z, Steeber DA, Chen J. Enzymeless Glucose Detection Based on CoO/Graphene Microsphere Hybrids. ELECTROANAL 2014. [DOI: 10.1002/elan.201300645] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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148
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Zhang H, Pokhrel S, Ji Z, Meng H, Wang X, Lin S, Chang CH, Li L, Li R, Sun B, Wang M, Liao YP, Liu R, Xia T, Mädler L, Nel AE. PdO doping tunes band-gap energy levels as well as oxidative stress responses to a Co₃O₄ p-type semiconductor in cells and the lung. J Am Chem Soc 2014; 136:6406-20. [PMID: 24673286 PMCID: PMC4410908 DOI: 10.1021/ja501699e] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
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We demonstrate through PdO doping
that creation of heterojunctions
on Co3O4 nanoparticles can quantitatively adjust
band-gap and Fermi energy levels to study the impact of metal oxide
nanoparticle semiconductor properties on cellular redox homeostasis
and hazard potential. Flame spray pyrolysis (FSP) was used to synthesize
a nanoparticle library in which the gradual increase in the PdO content
(0–8.9%) allowed electron transfer from Co3O4 to PdO to align Fermi energy levels across the heterojunctions.
This alignment was accompanied by free hole accumulation at the Co3O4 interface and production of hydroxyl radicals.
Interestingly, there was no concomitant superoxide generation, which
could reflect the hole dominance of a p-type semiconductor.
Although the electron flux across the heterojunctions induced upward
band bending, the Ec levels of the doped
particles showed energy overlap with the biological redox potential
(BRP). This allows electron capture from the redox couples that maintain
the BRP from −4.12 to −4.84 eV, causing disruption of
cellular redox homeostasis and induction of oxidative stress. PdO/Co3O4 nanoparticles showed significant increases in
cytotoxicity at 25, 50, 100, and 200 μg/mL, which was enhanced
incrementally by PdO doping in BEAS-2B and RAW 264.7 cells. Oxidative
stress presented as a tiered cellular response involving superoxide
generation, glutathione depletion, cytokine production, and cytotoxicity
in epithelial and macrophage cell lines. A progressive series of acute
pro-inflammatory effects could also be seen in the lungs of animals
exposed to incremental PdO-doped particles. All considered, generation
of a combinatorial PdO/Co3O4 nanoparticle library
with incremental heterojunction density allowed us to demonstrate
the integrated role of Ev, Ec, and Ef levels in the generation
of oxidant injury and inflammation by the p-type
semiconductor, Co3O4.
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Affiliation(s)
- Haiyuan Zhang
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin, China
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149
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Yue HY, Huang S, Chang J, Heo C, Yao F, Adhikari S, Gunes F, Liu LC, Lee TH, Oh ES, Li B, Zhang JJ, Huy TQ, Luan NV, Lee YH. ZnO nanowire arrays on 3D hierachical graphene foam: biomarker detection of Parkinson's disease. ACS NANO 2014; 8:1639-46. [PMID: 24405012 DOI: 10.1021/nn405961p] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
We report that vertically aligned ZnO nanowire arrays (ZnO NWAs) were fabricated on 3D graphene foam (GF) and used to selectively detect uric acid (UA), dopamine (DA), and ascorbic acid (AA) by a differential pulse voltammetry method. The optimized ZnO NWA/GF electrode provided a high surface area and high selectivity with a detection limit of 1 nM for UA and DA. The high selectivity in the oxidation potential was explained by the gap difference between the lowest unoccupied and highest occupied molecular orbitals of a biomolecule for a set of given electrodes. This method was further used to detect UA levels in the serum of patients with Parkinson's disease (PD). The UA level was 25% lower in PD patients than in healthy individuals. This finding strongly implies that UA can be used as a biomarker for PD.
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Affiliation(s)
- Hong Yan Yue
- Centre for Integrated Nanostructure Physics, Institute for Basic Science, Sungkyunkwan University , Suwon 440-746, Republic of Korea
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150
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Zhu X, Feng C, Ye Z, Chen Y, Li G. Fabrication of magneto-controlled moveable architecture to develop reusable electrochemical biosensors. Sci Rep 2014; 4:4169. [PMID: 24566810 PMCID: PMC3933910 DOI: 10.1038/srep04169] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 02/03/2014] [Indexed: 02/04/2023] Open
Abstract
Electrochemical biosensors have been studied intensively for several decades. Numerous sensing concepts and related interface architectures have been developed. However, all such architectures suffer a trade-off: simple architectures favour usability, whereas complex architectures favour better performance. To overcome this problem, we propose a novel concept by introducing a magneto-controlled moveable architecture (MCMA) instead of the conventional surface-fixed architecture. As a model, human breast cancer cells were used in this study. The results showed that a detection range from 100 to 1 × 106 cells could be achieved. Moreover, the whole detection cycle, including the measurement and the regeneration, could be completed in only 2 min. Thus, usability and excellent performance can be achieved in a single biosensor.
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Affiliation(s)
- Xiaoli Zhu
- Laboratory of Biosensing Technology, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Chang Feng
- Laboratory of Biosensing Technology, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Zonghuang Ye
- Department of Biochemistry and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China
| | - Yangyang Chen
- Laboratory of Biosensing Technology, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Genxi Li
- 1] Laboratory of Biosensing Technology, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China [2] Department of Biochemistry and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China
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