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| Preparation of photonic-magnetic responsive molecularly imprinted microspheres and their application to fast and selective extraction of 17β-estradiol | |
Peng, Hailong1,2; Luo, Mei1,2; Xiong, Hua2; Yu, Ningxiang2; Ning, Fangjian2; Fan, Jieping1; Zeng, Zheling1; Li, Jinhua3 ; Chen, Lingxin3; Xiong, Hua (huaxiong100@126.com)
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| 发表期刊 | Journal of Chromatography A
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| ISSN | 0021-9673 |
| 2016 | |
| 卷号 | 1442页码:1-11 |
| 关键词 | Nanomagnetics-adsorption Bins Cost Effectiveness Extraction Irradiation Magnetic Separation Magnetism Microspheres Nanoparticles Potable Water Separation Drinking Water Samples High Adsorption Capacity Magnetic Nano-particles Molecularly Imprinted Microspheres Molecularly Imprinted Polymer Photo-responsive Property Relative Standard Deviations Simultaneous Separation |
| 产权排序 | (1) School of Resources Environmental, Chemical Engineering, Nanchang University, Nanchang; 330031, China; (2) State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang; 330047, China; (3) Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai; 264003, China |
| 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 17β-estradiol (17β-E2) from real samples. The PM-MIMs possessed a sandwich micro-spherical structure containing Fe3O4core, SiO2middle 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 17β-E2with high adsorption capacity (Qmax = 0.84 mg g−1) and fast binding kinetics (Kd = 26.08 mg L−1). The PM-MIMs proved to be an ideal photoswitch with the ability of reversible uptake and release of 17β-E2upon alternate 365 and 440 nm irradiation: 45.0% of 17β-E2released from the PM-MIMs upon 365 nm irradiation, and 94.0% of the released 17β-E2was rebound to the PM-MIMs at 440 nm. Accordingly, the PM-MIMs were applied for fast separation and extraction of 17β-E2followed 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 μmol 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 17β-E2in complicated matrices. |
| 文章类型 | Journal article |
| 语种 | 英语 |
| WOS记录号 | WOS:35 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/17511 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Xiong, Hua (huaxiong100@126.com) |
| 作者单位 | 1. School of Resources Environmental, Chemical Engineering, Nanchang University 2. State Key Laboratory of Food Science and Technology, Nanchang University 3. Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | Peng, Hailong,Luo, Mei,Xiong, Hua,et al. Preparation of photonic-magnetic responsive molecularly imprinted microspheres and their application to fast and selective extraction of 17β-estradiol[J]. Journal of Chromatography A,2016,1442:1-11. |
| APA | Peng, Hailong.,Luo, Mei.,Xiong, Hua.,Yu, Ningxiang.,Ning, Fangjian.,...&Xiong, Hua .(2016).Preparation of photonic-magnetic responsive molecularly imprinted microspheres and their application to fast and selective extraction of 17β-estradiol.Journal of Chromatography A,1442,1-11. |
| MLA | Peng, Hailong,et al."Preparation of photonic-magnetic responsive molecularly imprinted microspheres and their application to fast and selective extraction of 17β-estradiol".Journal of Chromatography A 1442(2016):1-11. |
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| 2016-JCA-MIP-PM-E2.p（2479KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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