201
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Graphene oxide amplified electrochemiluminescence of graphitic carbon nitride and its application in ultrasensitive sensing for Cu2+. Anal Chim Acta 2015; 891:113-9. [DOI: 10.1016/j.aca.2015.05.054] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/27/2015] [Accepted: 05/30/2015] [Indexed: 11/21/2022]
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202
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Deng S, Zhang T, Ji X, Wan Y, Xin P, Shan D, Zhang X. Detection of zinc finger protein (EGR1) based on electrogenerated chemiluminescence from singlet oxygen produced in a nanoclay-supported porphyrin environment. Anal Chem 2015; 87:9155-62. [PMID: 26301820 DOI: 10.1021/acs.analchem.5b01318] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Early growth response protein 1 (EGR1), as a characteristic example of zinc finger proteins, acts as a transcription factor in eukaryotic cells, mediating protein-protein interactions. Here, a novel electrochemiluminescence (ECL)-based protocol for EGR1 assay was developed with a new eco-friendly emitter: singlet oxygen produced in the vicinity of nanoclay-supported zinc proto-porphyrin IX (ZnPPIX). Its electrochemical reduction stimulates an intense monochromic CL irradiation at 644 nm from the dissolved oxygen as endogenous coreactant in the aqueous solution. This ECL derivation was rationalized via hyphenated spectroscopy and theoretical calculation. To promote hydrophilicity and solid-state immobilization of porphyrins, the lamellar artificial laponite was employed as a nanocarrier owning to its large specific area without the blackbody effect. The facile exfoliation of laponite produced quality monolayered nanosheets and facilitated the adsorption and flattening of PPIX upon the surface, resulting in a highly efficient ECL emission. Based on the release of Zn(2+) in zinc finger domains of EGR1 upon contact with the ECL-inactive PPIX, which was monitored by circular dichroism and UV-absorption, a sensitive Zn(2+)-selective electrode for the "signal-on" detection of EGR1 was prepared with a detection limit down to 0.48 pg mL(-1) and a linearity over 6 orders of magnitude. The proposed porphyrin-based ECL system thus infused fresh blood into the traditional ECL family, showing great promise in bioassays of structural Zn(II) proteins and zinc finger-binding nucleotides.
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Affiliation(s)
- Shengyuan Deng
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering, Nanjing University of Science and Technology , Nanjing 210094, P. R. China
| | - Tingting Zhang
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering, Nanjing University of Science and Technology , Nanjing 210094, P. R. China
| | - Xubo Ji
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering, Nanjing University of Science and Technology , Nanjing 210094, P. R. China
| | - Ying Wan
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering, Nanjing University of Science and Technology , Nanjing 210094, P. R. China.,Intelligent Microsystem Technology and Engineering Center, School of Mechanical Engineering, Nanjing University of Science and Technology , Nanjing 210094, P. R. China
| | - Peng Xin
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering, Nanjing University of Science and Technology , Nanjing 210094, P. R. China
| | - Dan Shan
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering, Nanjing University of Science and Technology , Nanjing 210094, P. R. China
| | - Xueji Zhang
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering, Nanjing University of Science and Technology , Nanjing 210094, P. R. China
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203
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Lei YM, Huang WX, Zhao M, Chai YQ, Yuan R, Zhuo Y. Electrochemiluminescence Resonance Energy Transfer System: Mechanism and Application in Ratiometric Aptasensor for Lead Ion. Anal Chem 2015; 87:7787-94. [PMID: 26153718 DOI: 10.1021/acs.analchem.5b01445] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this paper, a novel electrochemiluminescence resonance energy transfer (ECL-RET) system from O2/S2O8(2-) to a kind of amino-terminated perylene derivative (PTC-NH2) was demonstrated for the first time, which was then applied to construct a ratiometric aptasensor for lead ion (Pb(2+)) detection. First, gold-nanoparticles-functionalized fullerene nanocomposites (AuNPs@nano-C60) were coated on a glassy carbon electrode (GCE), and then thiol-modified assistant probes (APs) were attached on AuNPs@nano-C60/GCE. Then the resultant electrode was hybridized with capture probes (the aptamer of the Pb(2+), abbreviated as CPs) to generate DNA duplexes, which could induce PTC-NH2 to be intercalated into the dsDNA grooves by the electrostatic adsorption. Herein, ECL dual peaks at -0.7 V (vs Ag/AgCl) and -2.0 V (vs Ag/AgCl) were obtained when the prepared aptasensor was detected in air-saturated S2O8(2-) solution, which could be attributed to the emission of excited dimmers (π-excimers) ((1)(NH2-PTC)2*) and (1)(O2)2*, respectively. In the presence of Pb(2+), the dsDNA was unwound, and Pb(2+) G-quadruplex structure was generated because of the highly specific affinity between Pb(2+) and CPs, which made the PTC-NH2 release from the electrode surface. As a result, the ECL signal at -0.7 V was decreased, and the ECL signal around -2.0 V was increased. By measuring the ratio of ECL intensities at two excitation potentials, the developed aptasensor exhibited the linear response range from 1.0 × 10(-12) M to 1.0 × 10(-7) M with a detection limit of 3.5 × 10(-13) M (S/N = 3) for Pb(2+), which could offer an alternative analytical method with excellent properties of high selectivity, accuracy, and sensitivity.
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Affiliation(s)
- Yan-Mei Lei
- The Key Laboratory of Eco-Environments in the Three Gorges Reservoir Region, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Wei-Xing Huang
- The Key Laboratory of Eco-Environments in the Three Gorges Reservoir Region, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Min Zhao
- The Key Laboratory of Eco-Environments in the Three Gorges Reservoir Region, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ya-Qin Chai
- The Key Laboratory of Eco-Environments in the Three Gorges Reservoir Region, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ruo Yuan
- The Key Laboratory of Eco-Environments in the Three Gorges Reservoir Region, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ying Zhuo
- The Key Laboratory of Eco-Environments in the Three Gorges Reservoir Region, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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204
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Zhao M, Liao N, Zhuo Y, Chai YQ, Wang JP, Yuan R. Triple Quenching of a Novel Self-Enhanced Ru(II) Complex by Hemin/G-Quadruplex DNAzymes and Its Potential Application to Quantitative Protein Detection. Anal Chem 2015; 87:7602-9. [DOI: 10.1021/acs.analchem.5b01671] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Min Zhao
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest
University), Ministry of Education, College of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
| | - Ni Liao
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest
University), Ministry of Education, College of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
- College
of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, China
| | - Ying Zhuo
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest
University), Ministry of Education, College of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
| | - Ya-Qin Chai
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest
University), Ministry of Education, College of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
| | - Ji-Peng Wang
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest
University), Ministry of Education, College of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
| | - Ruo Yuan
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest
University), Ministry of Education, College of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
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205
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Zhang J, Zhu A, Zhao T, Wu L, Wu P, Hou X. Glucose oxidase-directed, instant synthesis of Mn-doped ZnS quantum dots in neutral media with retained enzymatic activity: mechanistic study and biosensing application. J Mater Chem B 2015; 3:5942-5950. [PMID: 32262650 DOI: 10.1039/c5tb00917k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Protein-directed synthesis of quantum dots (QDs) is a "greener" alternative to the current high-temperature and aqueous synthetic protocols, which provide water-soluble, biocompatible protein-functionalized QDs in one-pot. However, the protein activity in such synthetic schemes is a critical issue, since the synthetic conditions (for instance, high pH of the precursors, long time of synthesis, and disruption of disulfide bonds) are not suitable for retaining the activity (especially for enzymes). Herein, we present a facile and instant glucose oxidase (GOD)-directed strategy for the preparation of highly luminescent, phosphorescent Mn-doped ZnS (Mn-ZnS) QDs in one-step at room temperature and in neutral aqueous media. With such mild synthetic conditions, the enzymatic activity of GOD was totally retained. Furthermore, we also carried out GOD-directed synthesis of QDs with several other conditions that are reported in the literature. It turned out that the GOD enzymatic activity under these synthetic conditions was lower than that of the proposed protocol, indicating that mild synthetic conditions are the prerequisite for retaining the enzymatic activity. Importantly, the as-prepared GOD-mediated Mn-ZnS QDs exhibited high photostability, high salt tolerance and colloidal stability, and can be stored for months at 4 °C or 25 °C without changing their phosphorescent intensity and enzymatic activity. Via selective chemical modification, the exact functional groups (amino acid residues) of GOD in directing the synthesis of Mn-ZnS QDs were studied in detail. It turned out to be imidazole in histidine residues but not thiol in cysteine residues that directed the formation of Mn-ZnS QDs, and this was further confirmed with several other proteins for synthesis of Mn-ZnS QDs. The as-prepared GOD-capped Mn-ZnS QDs were employed as phosphorescent probes for background-free sensing of glucose in serum samples.
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Affiliation(s)
- Jinyi Zhang
- College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
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206
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Zhao WW, Wang J, Zhu YC, Xu JJ, Chen HY. Quantum Dots: Electrochemiluminescent and Photoelectrochemical Bioanalysis. Anal Chem 2015; 87:9520-31. [DOI: 10.1021/acs.analchem.5b00497] [Citation(s) in RCA: 185] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Wei-Wei Zhao
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu P.R. China
| | - Jing Wang
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu P.R. China
| | - Yuan-Cheng Zhu
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu P.R. China
| | - Jing-Juan Xu
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu P.R. China
| | - Hong-Yuan Chen
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu P.R. China
- Collaborative
Innovation Center of Functionalized Probes for Chemical Imaging in
Universities of Shandong, Shandong Normal University, Jinan 250014, Shandong P.R. China
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207
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Zhang Z, Miao Y, Zhang Q, Yan G. Facile and sensitive detection of protamine by enhanced room-temperature phosphorescence of Mn-doped ZnS quantum dots. Anal Biochem 2015; 478:90-5. [DOI: 10.1016/j.ab.2015.03.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 03/06/2015] [Accepted: 03/06/2015] [Indexed: 12/17/2022]
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208
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Zhou H, Liu J, Zhang S. Quantum dot-based photoelectric conversion for biosensing applications. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2014.12.007] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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209
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Abstract
The great success of electrochemiluminescence (ECL) for in vitro diagnosis (IVD) and its promising potential in light-emitting devices greatly promote recent ECL studies. More than 45% of ECL articles were published after 2010, and the first international meeting on ECL was held in Italy in 2014. This critical review discusses recent vibrant developments in ECL, and highlights novel ECL phenomena, such as wireless ECL devices, bipolar electrode-based ECL, light-emitting electrochemical swimmers, upconversion ECL, ECL resonance energy transfer, thermoresponsive ECL, ECL using shape-controlled nanocrystals, and ECL as an ion-selective electrode photonic reporter, a paper-based microchip, and a self-powered microfluidic ECL platform. We also comment on the latest progress in bioassays, light-emitting devices and, the computational approach for the ECL mechanism study. Finally, perspectives and key challenges in the near future are addressed (198 references).
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Affiliation(s)
- Zhongyuan Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, People's Republic of China.
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210
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Chen Y, Hu Z, Xu D, Yu Y, Tang X, Guo H. Studies of Free Radical Polymerization Initiated by Visible Light Photoredox Catalysis. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Yiyong Chen
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - Zhongnan Hu
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - Dawen Xu
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - Yingfeng Yu
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - Xiaolin Tang
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - Hao Guo
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
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211
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Swanick KN, Sandroni M, Ding Z, Zysman-Colman E. Enhanced Electrochemiluminescence from a Stoichiometric Ruthenium(II)-Iridium(III) Complex Soft Salt. Chemistry 2015; 21:7435-40. [DOI: 10.1002/chem.201406533] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 01/27/2015] [Indexed: 11/07/2022]
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212
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Xia H, Li L, Yin Z, Hou X, Zhu JJ. Biobar-coded gold nanoparticles and DNAzyme-based dual signal amplification strategy for ultrasensitive detection of protein by electrochemiluminescence. ACS APPLIED MATERIALS & INTERFACES 2015; 7:696-703. [PMID: 25475153 DOI: 10.1021/am506980d] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A dual signal amplification strategy for electrochemiluminescence (ECL) aptasensor was designed based on biobar-coded gold nanoparticles (Au NPs) and DNAzyme. CdSeTe@ZnS quantum dots (QDs) were chosen as the ECL signal probes. To verify the proposed ultrasensitive ECL aptasensor for biomolecules, we detected thrombin (Tb) as a proof-of-principle analyte. The hairpin DNA designed for the recognition of protein consists of two parts: the sequences of catalytical 8-17 DNAzyme and thrombin aptamer. Only in the presence of thrombin could the hairpin DNA be opened, followed by a recycling cleavage of excess substrates by catalytic core of the DNAzyme to induce the first-step amplification. One part of the fragments was captured to open the capture DNA modified on the Au electrode, which further connected with the prepared biobar-coded Au NPs-CdSeTe@ZnS QDs to get the final dual-amplified ECL signal. The limit of detection for Tb was 0.28 fM with excellent selectivity, and this proposed method possessed good performance in real sample analysis. This design introduces the new concept of dual-signal amplification by a biobar-coded system and DNAzyme recycling into ECL determination, and it is promising to be extended to provide a highly sensitive platform for various target biomolecules.
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Affiliation(s)
- Hui Xia
- College of Chemistry and §Analytical & Testing Center, Sichuan University , Chengdu, Sichuan 610064, China
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213
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Hesari M, Lu JS, Wang S, Ding Z. Efficient electrochemiluminescence of a boron-dipyrromethene (BODIPY) dye. Chem Commun (Camb) 2015; 51:1081-4. [DOI: 10.1039/c4cc08671f] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Electrochemiluminescence of a boron-dipyrromethene dye–tri-n-propylamine system was found to be efficient at a unique peak wavelength of 707 nm.
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Affiliation(s)
- Mahdi Hesari
- Department of Chemistry
- The University of Western Ontario
- London
- Canada
| | - Jia-sheng Lu
- Department of Chemistry
- The Queen's university
- Kingston
- Canada
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
| | - Suning Wang
- Department of Chemistry
- The Queen's university
- Kingston
- Canada
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
| | - Zhifeng Ding
- Department of Chemistry
- The University of Western Ontario
- London
- Canada
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214
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Lu Q, Zhang J, Wu Y, Chen S. Conjugated polymer dots/oxalate anodic electrochemiluminescence system and its application for detecting melamine. RSC Adv 2015. [DOI: 10.1039/c5ra10809h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The anodic electrochemiluminescence behavior of an ammonolysis product of PFO in aqueous solution.
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Affiliation(s)
- Qiyi Lu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Juanjuan Zhang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Yuanya Wu
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Electrical Power Sources
- Institute for Clean Energy & Advanced Materials
- Southwest University
- Chongqing 400715
- P.R. China
| | - Shihong Chen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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