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Chen J, Fei M, Ni M, Wang Y, Liu Z, Xie Y, Zhao P, Zhang Z, Fei J. Multilayer Ti 3 C 2 -CNTs-Au Loaded with Cyclodextrin-MOF for Enhanced Selective Detection of Rutin. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310217. [PMID: 38361221 DOI: 10.1002/smll.202310217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/25/2024] [Indexed: 02/17/2024]
Abstract
In this work, multi-layer Ti3 C2 - carbon nanotubes - gold nanoparticles (Ti3 C2 -CNTs-Au) and cyclodextrin metal-organic framework - carbon nanotubes (CD-MOF-CNTs) have been prepared by in situ growth method and used to construct the ultra-sensitive rutin electrochemical sensor for the first time. Among them, the large number of metal active sites of Ti3 C2 , the high electron transfer efficiency of CNTS, and the good catalytic properties of AuNPs significantly enhance the electrochemical properties of the composite carbon nanomaterials. Interestingly, CD-MOF has a unique host-guest recognition and a large number of cavities, molecular gaps, and surface reactive groups, which gives the composite outstanding accumulation properties and selectivity for rutin. Under the optimized conditions, the constructed novel sensor has satisfactory detection performance for rutin in the range of 2 × 10-9 to 8 × 10-7 M with a limit of detection of 6.5 × 10-10 M. In addition, the sensor exhibits amazing anti-interference performance against rutin in some flavonoid compounds and can be used to test natural plant samples (buckwheat, Cymbopogon distans, and flos sophorae immaturus). This work has promising applications in the field of environmental and food analysis, and exploring new directions for the application of Mxene-based composites.
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Affiliation(s)
- Jia Chen
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Maoheng Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Meijun Ni
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Yilin Wang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Zhifang Liu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Yixi Xie
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Pengcheng Zhao
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Zhiyong Zhang
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan, 411105, P. R. China
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, School of Electronics, Peking University, Beijing, 100871, P. R. China
| | - Junjie Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan, 411105, P. R. China
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Yi Y, Hou J, Bi X, Luo L, Li L, You T. Simple and sensitive fluorescence sensing of methyl parathion based on the inner filter effect of p-nitrophenol on nitrogen-doped titanium carbide quantum dots. LUMINESCENCE 2023. [PMID: 38148625 DOI: 10.1002/bio.4632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/18/2023] [Accepted: 11/04/2023] [Indexed: 12/28/2023]
Abstract
It is of great significance to develop an effective method for methyl parathion (MP) detection. Herein, a novel nitrogen-doped titanium carbide quantum dots (N-Ti3 C2 QDs) was prepared and used to construct a simple and sensitive fluorescence sensing platform of MP by making use of inner filter effect (IFE). The prepared N-Ti3 C2 QDs can exhibit strong blue fluorescence at 434 nm. Meanwhile, MP could hydrolyze to produce p-nitrophenol (p-NP) under alkaline conditions, which showed a characteristic ultraviolet-visible (UV-visible) absorption peak at 405 nm, resulting in the fluorescence of N-Ti3 C2 QDs is effectively quenched by p-NP. In addition, the investigation of time-resolved fluorescence decays indicated that the corresponding quenching mechanism of p-NP on N-Ti3 C2 QDs is due to the IFE. After optimizing the conditions, the as-developed fluorescence sensing platform displayed wide detection range (0.1-30 μg mL-1 ) and low detection limit (0.036 μg mL-1 ) for MP, and it was also successfully applied for MP analysis in real water samples, thus it is expected that this simple, sensitive and enzyme-free sensing platform shows great applications.
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Affiliation(s)
- Yinhui Yi
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jieling Hou
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xiaoya Bi
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Lijun Luo
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Libo Li
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Tianyan You
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
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