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题名:
Preparation of photonic-magnetic responsive molecularly imprinted microspheres and their application to fast and selective extraction of 17 beta-estradiol
作者: Peng, HL; Luo, M; Xiong, H; Yu, NX; Ning, FJ; Fan, JP; Zeng, ZL; Jinhua LI(李金花); Chen, LX
刊名: JOURNAL OF CHROMATOGRAPHY A
ISSN号: 0021-9673
出版日期: 2016-04-15
卷号: 1442, 页码:1-11
关键词: Molecularly imprinted polymers ; Photonic responsive ; Magnetic separation ; 17 beta-Estradiol
DOI: 10.1016/j.chroma.2016.03.003
产权排序: [Peng, Hailong; Luo, Mei; Fan, Jieping; Zeng, Zheling] Nanchang Univ, Sch Resources Environm & Chem Engn, Nanchang 330031, Peoples R China; [Peng, Hailong; Luo, Mei; Xiong, Hua; Yu, Ningxiang; Ning, Fangjian] Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, Peoples R China; [Li, Jinhua; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
通讯作者: Xiong, H (reprint author), Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, 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. huaxiong100@126.com ; 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: Photonic-magnetic responsive molecularly imprinted microspheres (PM-MIMs) were prepared by seed polymerization, through suitable functionalization of magnetic nanoparticles for further coating with photoresponsive functional monomer and imprinted layers, and then were successfully applied to the fast and selective extraction of 17 beta-estradiol (17 beta-E-2) from real samples. The PM-MIMs possessed a sandwich micro-spherical structure containing Fe3O4 core, SiO2 middle layer, and MIPs shell with thickness of 25 nm. The PM-MIMs displayed excellent photoresponsive properties and could be rapidly separated from solutions under an external magnet. The PM-MIMs had specific affinity towards 17 beta-E-2 with high adsorption capacity (Q(max) = 0.84 mg g(-1)) and fast binding kinetics (K-d = 26.08 mg L-1). The PM-MIMs proved to be an ideal photoswitch with the ability of reversible uptake and release of 17 beta-E-2 upon alternate 365 and 440 nm irradiation: 45.0% of 17 beta-E-2 released from the PM-MIMs upon 365 nm irradiation, and 94.0% of the released 17 beta-E-2 was rebound to the PM-MIMs at 440 nm. Accordingly, the PM-MIMs were applied for fast separation and extraction of 17 beta-E-2 followed by HPLC-UV determination, presenting the low limit of detection (LOD, S/N =3) and quantification (LOQ S/N =10) of 0.18 and 0.62,mol L-1, respectively. The high recoveries for spiked milk powder and drinking water samples were in the range of 97.5-113.0% with relative standard deviations less than 4.4%. This study reasonably combined photonic response, magnetic separation and surface imprinting, which endowed the PM-MIMs with significant advantages of high adsorption capacity and fast binding kinetics, convenient separation and recycled use, and simple rapid eco-benign adsorption/elution processes for template molecules. Thus, the PM-MIMs based method may be a simple, rapid, convenient, cost-effective and environmentally-friendly way for simultaneous separation, enrichment and detection of trace 17 beta-E-2 in complicated matrices. (C) 2016 Elsevier B.V. All rights reserved.
研究领域[WOS]: Biochemistry & Molecular Biology ; Chemistry
项目资助者: National Natural Science Foundation of China(21477160 ; Natural Science Foundation of Jiangxi Province(20142BAB213003 ; International Science and Technology Cooperation Program of China(2011DFA32770) ; 21366019) ; 20151BAB203029)
关键词[WOS]: SOLID-PHASE EXTRACTION ; AQUEOUS-MEDIA ; BISPHENOL-A ; POLYMERS ; SEPARATION ; SURFACE ; SAMPLES ; ESTROGENS ; RELEASE ; SYSTEM
文章类型: Article
收录类别: SCI
语种: 英语
WOS记录号: WOS:000374083100001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/17037
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.Nanchang Univ, Sch Resources Environm & Chem Engn
2.Nanchang Univ, State Key Lab Food Sci & Technol
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat

Recommended Citation:
Peng, HL,Luo, M,Xiong, H,et al. Preparation of photonic-magnetic responsive molecularly imprinted microspheres and their application to fast and selective extraction of 17 beta-estradiol[J]. JOURNAL OF CHROMATOGRAPHY A,2016,1442:1-11.
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