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题名:
Magnetic molecularly imprinted polymers for the fluorescent detection of trace 17 beta-estradiol in environmental water
作者: Ming, Weina; Wang, Xiaoyan; Lu, Wenhui; Zhang, Zhong; Song, Xingliang; Jinhua LI(李金花); Chen, Lingxin
刊名: SENSORS AND ACTUATORS B-CHEMICAL
ISSN号: 0925-4005
出版日期: 2017-02-01
卷号: 238, 页码:1309-1315
关键词: 17 beta-Estradiol ; Molecularly imprinted polymers ; Magnetic separation ; Competitive adsorption ; Surface imprinting ; Fluorescent detection
DOI: 10.1016/j.snb.2016.09.111
产权排序: [Ming, Weina; Wang, Xiaoyan; Lu, Wenhui; Zhang, Zhong; Li, Jinhua; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; [Ming, Weina; Chen, Lingxin] Qufu Normal Univ, Coll Chem & Chem Engn, Key Lab Life Organ Anal Shandong Prov, Qufu 273165, Peoples R China; [Wang, Xiaoyan] Binzhou Med Univ, Sch Pharm, Yantai 264003, Peoples R China; [Song, Xingliang] Linyi Univ, Sch Chem & Chem Engn, Linyi 276005, Peoples R China
通讯作者: Li, JH ; Chen, LX (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China. jhli@yic.ac.cn ; lxchen@yic.ac.cn
作者部门: 中科院海岸带环境过程与生态修复重点实验室
英文摘要: A novel core-shell structured composite of Fe3O4 nanoparticles and molecularly imprinted polymers (MIPs), namely, magnetic MIPs (M-MIPs), was synthesized by surface imprinting technique combined with precipitation polymerization for the selective and sensitive fluorescent detection of 17 beta-estradiol (17 beta-E-2) based on the competitive desorption of fluorescein as a fluorescent indicator from the M-MIPs. The resulting M-MIPs were well characterized, and they showed ideal spherical morphology and magnetic property. Competitive rebinding of 17 beta-E-2, to the corresponding recognition sites regulated the release of fluorescein and resulted in an enhanced fluorescence signal. The fluorescence increase linearly coincided with the concentration of 17 beta-E-2 within the range of 0.10-70 mu M with a detection limit of 0.03 mu M. The recovery of 17 beta-E-2 from spiked lake and river water samples ranged from 98.2 to 103.8% with relative standard deviations between 1.1 and 3.8%. This study successfully integrated surface imprinting, competitive adsorption, magnetic separation and fluorescent detection, and also demonstrated fast binding kinetics, easy separation and reusability, and sensitive determination of template molecules. Thus, the MMIP-based method may provide a simple, rapid, convenient, cost-effective and environmentally friendly way for the highly selective and sensitive recognition and detection of non-fluorescent molecules at trace levels. (C) 2016 Elsevier B.V. All rights reserved.
研究领域[WOS]: Chemistry ; Electrochemistry ; Instruments & Instrumentation
项目资助者: National Defense Science and Technology Innovation Project of Chinese Academy of Sciences(CXJJ-16M254) ; National Natural Science Foundation of China(21477160 ; 21275158 ; 21575159)
关键词[WOS]: SOLID-PHASE EXTRACTION ; SELECTIVE REMOVAL ; AU NANOPARTICLES ; QUANTUM DOTS ; BISPHENOL-A ; SHELL ; SAMPLES ; SEPARATION ; BIOSENSOR ; SORBENT
文章类型: Article
收录类别: SCI
语种: 英语
WOS记录号: WOS:000388948600158
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/19266
Appears in Collections:中科院海岸带环境过程与生态修复重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
2.Qufu Normal Univ, Coll Chem & Chem Engn, Key Lab Life Organ Anal Shandong Prov, Qufu 273165, Peoples R China
3.Qufu Normal Univ, Coll Chem & Chem Engn, Key Lab Life Organ Anal Shandong Prov, Qufu 273165, Peoples R China
4.Binzhou Med Univ, Sch Pharm, Yantai 264003, Peoples R China
5.Linyi Univ, Sch Chem & Chem Engn, Linyi 276005, Peoples R China

Recommended Citation:
Ming, Weina,Wang, Xiaoyan,Lu, Wenhui,et al. Magnetic molecularly imprinted polymers for the fluorescent detection of trace 17 beta-estradiol in environmental water[J]. SENSORS AND ACTUATORS B-CHEMICAL,2017,238:1309-1315.
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