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Selective phosphorescence sensing of pesticide based on the inhibition of silver(I) quenched ZnS:Mn2+ quantum dots
Zhang, Cheng1,2; Zhang, Kui1; Zhao, Tingting1; Liu, Bianhua1,2; Wang, Zhenyang1; Zhang, Zhongping1,3
2017-11-01
发表期刊SENSORS AND ACTUATORS B-CHEMICAL
卷号252页码:1083-1088
摘要Pesticides abuse has drawn considerable attention in agriculture, environment and food safety in recent years. How to selective and on-site detection of pesticide residues with rapid operation and low cost is still a hot topic. In this work, we report a novel method for the detection of pesticide thiram using phosphorescent Mn-doped ZnS quantum dots (ZnS:Mn2+ QDs) combined by an affinity reaction between thiram and Ag+ ions. On the one hand, the phosphorescence of as-prepared ZnS:Mn2+ QDs at 590 nm can be effectively quenched by Ag+ ions due to the direct cation-exchange reaction at the surface of QDs. On the other hand, the presence of thiram can inhibit phosphorescence quenching through the formation of stable Ag-thiram complex. This inhibition resulted in a linear recovery in emission intensity with increasing the amount of thiram, which enables thiram residues to be identified under the UV light illumination. In buffer condition, thiram could be detected within the concentration range of 50 nM-2.5 mu M with a detection limit of 25 nM. Moreover, the proposed method has been successfully applied to thiram residues identification at fresh fruit peels. The investigation provides a profile for instant and visual detection of surface residues using doped quantum dots. (C) 2017 Elsevier B.V. All rights reserved.
文章类型Article
关键词Phosphorescence Mn-doped Zns Quantum Dots Silver(i) Pesticide Fruit Peel
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者National Basic Research Program of China(2015CB932002) ; National Basic Research Program of China(2015CB932002) ; Science and Technology Service Network Initiative of Chinese Academy of China(KFJ-SW-STS-172) ; Science and Technology Service Network Initiative of Chinese Academy of China(KFJ-SW-STS-172) ; National Natural Science Foundation of China(21375131 ; National Natural Science Foundation of China(21375131 ; 21675158 ; 21675158 ; 21605144 ; 21605144 ; 21475135) ; 21475135) ; National Basic Research Program of China(2015CB932002) ; National Basic Research Program of China(2015CB932002) ; Science and Technology Service Network Initiative of Chinese Academy of China(KFJ-SW-STS-172) ; Science and Technology Service Network Initiative of Chinese Academy of China(KFJ-SW-STS-172) ; National Natural Science Foundation of China(21375131 ; National Natural Science Foundation of China(21375131 ; 21675158 ; 21675158 ; 21605144 ; 21605144 ; 21475135) ; 21475135)
DOI10.1016/j.snb.2017.06.087
关键词[WOS]FLUORESCENCE DETECTION ; SERS ; ZNS ; NANOCRYSTALS ; THIRAM ; IONS
收录类别SCI
语种英语
资助者National Basic Research Program of China(2015CB932002) ; National Basic Research Program of China(2015CB932002) ; Science and Technology Service Network Initiative of Chinese Academy of China(KFJ-SW-STS-172) ; Science and Technology Service Network Initiative of Chinese Academy of China(KFJ-SW-STS-172) ; National Natural Science Foundation of China(21375131 ; National Natural Science Foundation of China(21375131 ; 21675158 ; 21675158 ; 21605144 ; 21605144 ; 21475135) ; 21475135) ; National Basic Research Program of China(2015CB932002) ; National Basic Research Program of China(2015CB932002) ; Science and Technology Service Network Initiative of Chinese Academy of China(KFJ-SW-STS-172) ; Science and Technology Service Network Initiative of Chinese Academy of China(KFJ-SW-STS-172) ; National Natural Science Foundation of China(21375131 ; National Natural Science Foundation of China(21375131 ; 21675158 ; 21675158 ; 21605144 ; 21605144 ; 21475135) ; 21475135)
WOS研究方向Chemistry ; Electrochemistry ; Instruments & Instrumentation
WOS类目Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
WOS记录号WOS:000408277500129
引用统计
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33610
专题中科院合肥智能机械研究所
作者单位1.Chinese Acad Sci, Inst Intelligent Machines, CAS Ctr Excellence Nanosci, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China
3.Anhui Univ, Sch Chem & Chem Engn, Hefei 230601, Anhui, Peoples R China
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Zhang, Cheng,Zhang, Kui,Zhao, Tingting,et al. Selective phosphorescence sensing of pesticide based on the inhibition of silver(I) quenched ZnS:Mn2+ quantum dots[J]. SENSORS AND ACTUATORS B-CHEMICAL,2017,252:1083-1088.
APA Zhang, Cheng,Zhang, Kui,Zhao, Tingting,Liu, Bianhua,Wang, Zhenyang,&Zhang, Zhongping.(2017).Selective phosphorescence sensing of pesticide based on the inhibition of silver(I) quenched ZnS:Mn2+ quantum dots.SENSORS AND ACTUATORS B-CHEMICAL,252,1083-1088.
MLA Zhang, Cheng,et al."Selective phosphorescence sensing of pesticide based on the inhibition of silver(I) quenched ZnS:Mn2+ quantum dots".SENSORS AND ACTUATORS B-CHEMICAL 252(2017):1083-1088.
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