A molecular imprinting-based turn-on Ratiometric fluorescence sensor for highly selective and sensitive detection of 2,4-dichlorophenoxyacetic acid (2,4-D)
Wang, XY; Yu, JL; Wu, XQ; Fu, JQ; Kang, Q; Shen, DZ; Li, JH; Chen, LX; Shen, DZ (reprint author), Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Collaborat Innovat Ctr Functionalized Probes Chem, Key Lab Mol & Nano Probes,Minist Educ,Shandong Pr, Jinan 250014, Peoples R China.; Chen, LX (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China. dzshen@sdnu.edu.cn; lxchen@yic.ac.cn
2016-07-15
发表期刊BIOSENSORS & BIOELECTRONICS
ISSN0956-5663
卷号81页码:438-444
产权排序[Wang, Xiaoyan; Yu, Jialuo; Kang, Qi; Shen, Dazhong] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Collaborat Innovat Ctr Functionalized Probes Chem, Key Lab Mol & Nano Probes,Minist Educ,Shandong Pr, Jinan 250014, Peoples R China; [Wang, Xiaoyan; Yu, Jialuo; Wu, Xiaqing; Fu, Junqing; Li, Jinhua; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; [Wang, Xiaoyan] Binzhou Med Univ, Sch Pharm, Yantai 264003, Peoples R China
摘要A novel molecular imprinting-based turn-on ratiometric fluorescence sensor was constructed via a facile sol-gel polymerization for detection of 2,4-dichlorophenoxyacetic acid (2,4-D) on the basis of photo induced electron transfer (PET) by using nitrobenzoxadiazole (NBD) as detection signal source and quantum dots (QDs) as reference signal source. With the presence and increase of 2,4-D, the amine groups on the surface of QDs@SiO2 could bind with 2,4-D and thereby the NBD fluorescence intensities could be significantly enhanced since the PET process was inhibited, while the QDs maintained constant intensities. Accordingly, the ratio of the dual-emission intensities of green NBD and red QDs could be utilized for turn-on fluorescent detection of 2,4-D, along with continuous color changes from orange-red to green readily observed by the naked eye. The as-prepared fluorescence sensor obtained high sensitivity with a low detection limit of 0.14 mu M within 5 min, and distinguished recognition selectivity for 2,4-D over its analogs. Moreover, the sensor was successfully applied to determine 2,4-D in real water samples, and high recoveries at three spiking levels of 2,4-D ranged from 95.0% to 110.1% with precisions below 4.5%. The simple, rapid and reliable visual sensing strategy would not only provide potential applications for high selective ultratrace analysis of complicated matrices, but also greatly enrich the research connotations of molecularly imprinted sensors. (C) 2016 Elsevier B.V. All rights reserved.
关键词Molecular Imprinting Fluorescence Turn-on Photoinduced Electron Transfer Ratiometric Fluorescence Water Sample 2 4-dichlorophenoxyacetic Acid (2 4-d)
作者部门中科院海岸带环境过程与生态修复重点实验室
DOI10.1016/j.bios.2016.03.031
项目资助者National Natural Science Foundation of China(21575080 ; Research Fund for the Doctoral Program of Higher Education of China(20113704110003) ; Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry ; 21275091 ; 21275158 ; 21477160)
收录类别SCI
关键词[WOS]SOLID-PHASE MICROEXTRACTION ; GAS-CHROMATOGRAPHY ; WATER SAMPLES ; QUANTUM DOTS ; TRACE DETERMINATION ; GOLD NANOCLUSTERS ; MASS-SPECTROMETRY ; HERBICIDES ; POLYMER ; NANOPARTICLES
文章类型Article
语种英语
WOS研究方向Biophysics ; Biotechnology & Applied Microbiology ; Chemistry ; Electrochemistry ; Science & Technology - Other Topics
WOS记录号WOS:000374811800060
引用统计
被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/17053
专题中科院海岸带环境过程与生态修复重点实验室
通讯作者Shen, DZ (reprint author), Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Collaborat Innovat Ctr Functionalized Probes Chem, Key Lab Mol & Nano Probes,Minist Educ,Shandong Pr, Jinan 250014, Peoples R China.; Chen, LX (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China. dzshen@sdnu.edu.cn; lxchen@yic.ac.cn
作者单位1.Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Collaborat Innovat Ctr Functionalized Probes Chem, Key Lab Mol & Nano Probes,Minist Educ
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat
3.Binzhou Med Univ, Sch Pharm
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Wang, XY,Yu, JL,Wu, XQ,et al. A molecular imprinting-based turn-on Ratiometric fluorescence sensor for highly selective and sensitive detection of 2,4-dichlorophenoxyacetic acid (2,4-D)[J]. BIOSENSORS & BIOELECTRONICS,2016,81:438-444.
APA Wang, XY.,Yu, JL.,Wu, XQ.,Fu, JQ.,Kang, Q.,...&lxchen@yic.ac.cn.(2016).A molecular imprinting-based turn-on Ratiometric fluorescence sensor for highly selective and sensitive detection of 2,4-dichlorophenoxyacetic acid (2,4-D).BIOSENSORS & BIOELECTRONICS,81,438-444.
MLA Wang, XY,et al."A molecular imprinting-based turn-on Ratiometric fluorescence sensor for highly selective and sensitive detection of 2,4-dichlorophenoxyacetic acid (2,4-D)".BIOSENSORS & BIOELECTRONICS 81(2016):438-444.
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