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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
Source PublicationSENSORS AND ACTUATORS B-CHEMICAL
Volume252Pages:1083-1088
AbstractPesticides 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.
SubtypeArticle
KeywordPhosphorescence Mn-doped Zns Quantum Dots Silver(i) Pesticide Fruit Peel
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Funding OrganizationNational 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
WOS KeywordFLUORESCENCE DETECTION ; SERS ; ZNS ; NANOCRYSTALS ; THIRAM ; IONS
Indexed BySCI
Language英语
Funding OrganizationNational 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 Research AreaChemistry ; Electrochemistry ; Instruments & Instrumentation
WOS SubjectChemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
WOS IDWOS:000408277500129
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33610
Collection中科院合肥智能机械研究所
Affiliation1.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
Recommended Citation
GB/T 7714
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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