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Yang ZH, Ren S, Zhuo Y, Yuan R, Chai YQ. Cu/Mn Double-Doped CeO 2 Nanocomposites as Signal Tags and Signal Amplifiers for Sensitive Electrochemical Detection of Procalcitonin. Anal Chem 2017; 89:13349-13356. [PMID: 29211446 DOI: 10.1021/acs.analchem.7b03502] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Nanomaterials themselves as redox probes and nanocatalysts have many advantages for electrochemical biosensors. However, most nanomaterials with excellent catalytic activity cannot be directly used as redox probe to construct electrochemical biosensor because the redox signal of these nanomaterials can only be obtained in strong acid or alkali solution at high positive or negative potential, which greatly limits their applications in biologic assay. In this study, Cu/Mn double-doped CeO2 nanocomposite (CuMn-CeO2) was synthesized to use as signal tags and signal amplifiers for the construction of electrochemical immunosensor for sensitive assay of procalcitonin (PCT). Herein, CuMn-CeO2 not only possesses excellent catalytic activity toward H2O2 for signal amplification, but also can be directly used as redox probe for electrochemical signal readout achieved in neutral mild buffer solution at low positive potential. Importantly, since doping Cu, Mn into CeO2 lattice structure can generate extra oxygen vacancies, the redox and catalytic performance of obtained CuMn-CeO2 was much better than that of pure CeO2, which improves the performance of proposed immunosensor. Furthermore, CuMn-CeO2 can be implemented as a matrix for immobilizing amounts of secondary antibody anti-PCT by forming ester-like bridging between carboxylic groups of Ab2 and CeO2 without extra chemical modifications, which greatly simplifies the preparative steps. The prepared immunosensor exhibited a wide linear range of 0.1 pg mL-1 to 36.0 ng mL-1 with a low detection limit of 0.03 pg mL-1. This study implements nanomaterial themselves as redox probes and signal amplifiers and paves a new way for constructing electrochemical immunosensor.
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Affiliation(s)
- Zhe-Han Yang
- Key Laboratory of Luminescence and Real-Time Analytic Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China.,Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University , Chongqing, 400067, China
| | - Shirong Ren
- Key Laboratory of Luminescence and Real-Time Analytic Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
| | - Ying Zhuo
- Key Laboratory of Luminescence and Real-Time Analytic Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
| | - Ruo Yuan
- Key Laboratory of Luminescence and Real-Time Analytic Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
| | - Ya-Qin Chai
- Key Laboratory of Luminescence and Real-Time Analytic Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
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Koilraj P, Sasaki K. Eco-Friendly Alkali-Free Arginine-Assisted Hydrothermal Synthesis of Different Layered Double Hydroxides and Their Chromate Adsorption/Reduction Efficiency. ChemistrySelect 2017. [DOI: 10.1002/slct.201702134] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paulmanickam Koilraj
- Department of Earth Resources Engineering, Faculty of Engineering; Kyushu University; Fukuoka 819-0395 Japan
| | - Keiko Sasaki
- Department of Earth Resources Engineering, Faculty of Engineering; Kyushu University; Fukuoka 819-0395 Japan
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3
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A nonenzymatic electrochemical nitrite sensor based on Pt nanoparticles loaded Ni(OH) 2 /multi-walled carbon nanotubes nanocomposites. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.04.050] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Bao F, Tan F, Wang W, Qiao X, Chen J. Facile preparation of Ag/Ni(OH)2 composites with enhanced catalytic activity for reduction of 4-nitrophenol. RSC Adv 2017. [DOI: 10.1039/c6ra27153g] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Preparation and formation mechanism of Ag/Ni(OH)2 composites with enhanced catalytic activity for reduction of 4-nitrophenol were systematically studied.
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Affiliation(s)
- Feng Bao
- State Key Laboratory of Materials Processing and Die & Mould Technology
- Huazhong University of Science and Technology
- Wuhan
- PR China
| | - Fatang Tan
- State Key Laboratory of Materials Processing and Die & Mould Technology
- Huazhong University of Science and Technology
- Wuhan
- PR China
| | - Wei Wang
- State Key Laboratory of Materials Processing and Die & Mould Technology
- Huazhong University of Science and Technology
- Wuhan
- PR China
| | - Xueliang Qiao
- State Key Laboratory of Materials Processing and Die & Mould Technology
- Huazhong University of Science and Technology
- Wuhan
- PR China
| | - Jianguo Chen
- State Key Laboratory of Materials Processing and Die & Mould Technology
- Huazhong University of Science and Technology
- Wuhan
- PR China
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5
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Long Y, Li J, Wu L, Li J, Wang X, Yao S, Song S, Zhang H. One‐Pot Synthesis of Cobalt‐Doped Pt–Au Alloy Nanoparticles Supported on Ultrathin α‐Co(OH)
2
Nanosheets and Their Enhanced Performance in the Reduction of
p
‐Nitrophenol. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yan Long
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun P. R. China
- Graduate School of the Chinese Academy of Sciences 100039 Beijing P. R. China
| | - Jian Li
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun P. R. China
- Graduate School of the Chinese Academy of Sciences 100039 Beijing P. R. China
| | - Lanlan Wu
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun P. R. China
- Graduate School of the Chinese Academy of Sciences 100039 Beijing P. R. China
| | - Junqi Li
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun P. R. China
- Graduate School of the Chinese Academy of Sciences 100039 Beijing P. R. China
| | - Xiao Wang
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun P. R. China
- Graduate School of the Chinese Academy of Sciences 100039 Beijing P. R. China
| | - Shuang Yao
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun P. R. China
| | - Shuyan Song
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun P. R. China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun P. R. China
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6
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Wang F, Li W, Feng X, Liu D, Zhang Y. Decoration of Pt on Cu/Co double-doped CeO 2 nanospheres and their greatly enhanced catalytic activity. Chem Sci 2016; 7:1867-1873. [PMID: 29899909 PMCID: PMC5965059 DOI: 10.1039/c5sc04069h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 11/25/2015] [Indexed: 01/15/2023] Open
Abstract
In this paper, we report an efficient strategy for the synthesis of Cu/Co double-doped CeO2 nanospheres (Cu x Co1-x -CeO2-Pt, 0 ≤ x ≤ 1), which were fabricated via a simple water-glycol system. The following in situ surface decoration of Pt nanoparticles make these nanospheres highly active for the catalytic reduction of nitrophenol and CO oxidation. Detailed tests show that their catalytic performance strongly depends on the doping components and ion concentration of Cu and Co ions. The best samples of Cu0.50Co0.50-CeO2-Pt and Cu0.34Co0.66-CeO2-Pt demonstrate an excellent turnover frequency (TOF) of more than 450 h-1 after five cycles and retains about 99% conversion by using NH3BH3 as a reductant to reduce nitrophenol. Moreover, Cu0.50Co0.50-CeO2-Pt possesses a much lower light-off and T100 (the temperature for 100% CO oxidation) temperature compared with the other catalysts.
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Affiliation(s)
- Fan Wang
- State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry , Chinese Academy of Science , Changchun , 130022 Jilin , China
| | - Wang Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education , School of Chemistry and Environment , Beihang University , Beijing 100191 , P.R. China . ;
| | - Xilan Feng
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education , School of Chemistry and Environment , Beihang University , Beijing 100191 , P.R. China . ;
| | - Dapeng Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education , School of Chemistry and Environment , Beihang University , Beijing 100191 , P.R. China . ;
| | - Yu Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education , School of Chemistry and Environment , Beihang University , Beijing 100191 , P.R. China . ;
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7
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Liu D, Li W, Feng X, Zhang Y. Galvanic replacement synthesis of Ag x Au 1-x @CeO 2 (0 ≤ x ≤ 1) core@shell nanospheres with greatly enhanced catalytic performance. Chem Sci 2015; 6:7015-7019. [PMID: 28808522 PMCID: PMC5532536 DOI: 10.1039/c5sc02774h] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 09/07/2015] [Indexed: 12/18/2022] Open
Abstract
A galvanic replacement strategy has been successfully adopted to design Ag x Au1-x @CeO2 core@shell nanospheres derived from Ag@CeO2 ones. After etching using HAuCl4, the Ag core was in situ replaced with Ag x Au1-x alloy nanoframes, and void spaces were left under the CeO2 shell. Among the as-prepared Ag x Au1-x @CeO2 catalysts, Ag0.64Au0.36@CeO2 shows the optimal catalytic performance, whose catalytic efficiency reaches even 2.5 times higher than our previously reported Pt@CeO2 nanospheres in the catalytic reduction of 4-nitrophenol (4-NP) by ammonia borane (AB). Besides, Ag0.64Au0.36@CeO2 also exhibits a much lower 100% conversion temperature of 120 °C for catalytic CO oxidation compared with the other samples.
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Affiliation(s)
- Dapeng Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education , School of Chemistry and Environment , Beihang University , Beijing 100191 , China .
| | - Wang Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education , School of Chemistry and Environment , Beihang University , Beijing 100191 , China .
| | - Xilan Feng
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education , School of Chemistry and Environment , Beihang University , Beijing 100191 , China .
| | - Yu Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education , School of Chemistry and Environment , Beihang University , Beijing 100191 , China .
- International Research Institute for Multidisciplinary Science , Beihang University , Beijing 100191 , P. R. China
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Wang X, Liu D, Wang F, Li J, Zhen J, Zhang H. Strongly Coupled PtNi 0.3 Co 2.7 O 4 Hybrid Nanoflowers with Remarkably Enhanced Catalytic Performance. Chempluschem 2015; 80:1241-1244. [PMID: 31973314 DOI: 10.1002/cplu.201500189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 06/15/2015] [Indexed: 12/27/2022]
Abstract
The nonstoichiometric metal oxide Ni0.3 Co2.7 O4 served as a support for small-sized Pt nanoparticles. The whole synthesis of the hybrid material can be kinetically controlled and no further surface-modification treatment was required. More importantly, the as-obtained strongly coupled PtNi0.3 Co2.7 O4 hybrid nanoflowers exhibit remarkably enhanced catalytic activities compared with PtNiO and PtCo3 O4 hybrid samples. This result indicates that it is possible to optimize the catalytic performance of noble metals by using a nonstoichiometric metal oxides as a support instead of a stoichiometric metal oxide.
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Affiliation(s)
- Xiao Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
| | - Dapeng Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
| | - Fan Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
| | - Junqi Li
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
| | - Jiangman Zhen
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
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9
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Luo Y, Zhu H, Luo Y, Chang H, Zhong S, Liu W, Wang M. Aqueous synthesis of Pt supported 3D flower-like Co3O4nanostructures with thin nanosheets as building blocks. CrystEngComm 2015. [DOI: 10.1039/c5ce01770j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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10
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Wang G, Zhao T, Song M, Wang C, Liu H, Qin Z. Hemoglobin-like NiO nanostructures as potential carriers to support noble metals with enhanced catalytic performance. CrystEngComm 2015. [DOI: 10.1039/c5ce01470k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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