A molecular imprinting-based turn-on Ratiometric fluorescence sensor for highly selective and sensitive detection of 2,4-dichlorophenoxyacetic acid (2,4-D)

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	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
刊名	BIOSENSORS & BIOELECTRONICS
	2016-07-15
卷号	81 页码:438-444
关键词	Molecular imprinting Fluorescence turn-on Photoinduced electron transfer Ratiometric fluorescence 2,4-Dichlorophenoxyacetic acid (2,4-D) Water sample
ISSN号	0956-5663
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
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
英文摘要	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.
研究领域[WOS]	Biophysics ; Biotechnology & Applied Microbiology ; Chemistry ; Electrochemistry ; Science & Technology - Other Topics
关键词[WOS]	SOLID-PHASE MICROEXTRACTION ; GAS-CHROMATOGRAPHY ; WATER SAMPLES ; QUANTUM DOTS ; TRACE DETERMINATION ; GOLD NANOCLUSTERS ; MASS-SPECTROMETRY ; HERBICIDES ; POLYMER ; NANOPARTICLES
收录类别	SCI
语种	英语
WOS记录号	WOS:000374811800060
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/17053]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
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
推荐引用方式 GB/T 7714	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.,...&Chen, LX.(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.