Institutional Repository of Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (KLCEP)
| Molecularly imprinted polymers-coated gold nanoclusters for fluorescent detection of bisphenol A | |
Wu, Xiaqing1,2; Zhang, Zhong2,5; Li, Jinhua2 ; You, Huiyan1; Li, Yanbin3,4; Chen, Lingxin2; You, HY (reprint author), Dalian Univ, Environm & Chem Engn Coll, Dalian 116622, Peoples R China. dlyhy@dicp.ac.cn; lxchen@yic.ac.cn
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| 发表期刊 | SENSORS AND ACTUATORS B-CHEMICAL
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| ISSN | 0925-4005 |
| 2015-05-01 | |
| 卷号 | 211页码:507-514 |
| 关键词 | Gold Nanoclusters Molecularly Imprinted Polymers Fluorescent Detection Bisphenol a |
| DOI | 10.1016/j.snb.2015.01.115 |
| 产权排序 | [Wu, Xiaqing; You, Huiyan] Dalian Univ, Environm & Chem Engn Coll, Dalian 116622, Peoples R China; [Wu, Xiaqing; 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; [Li, Yanbin] Zhejiang Univ, Coll Biosyst Engn & Food Sci, Hangzhou 310058, Zhejiang, Peoples R China; [Li, Yanbin] Univ Arkansas, Dept Biol & Agr Engn, Fayetteville, AR 72701 USA; [Zhang, Zhong] Univ Chinese Acad Sci, Beijing 100049, Peoples R 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 | A flexible fluorescent sensing strategy for the recognition and detection of bisphenol A (BPA) has been proposed based on molecularly imprinted polymers (MIPs)-coated gold nanoclusters (AuNCs), by taking advantages of the high selectivity of MIPs and the strong fluorescence property of AuNCs. SiO2@AuNCs were initially prepared by making use of the powerful amido bonds between carboxyl-terminated AuNCs and amino-functionalized SiO2 nanoparticles. Then MIPs-coated AuNCs were formed by anchoring MIP layer on the surface of SiO2@AuNCs via a solgel process. In the presence of imprinting template BPA, a Meisenheimer complex could be formed between BPA and the primary amino groups on the surface of the AuNCs, and the photoluminescent energy of AuNCs would be transferred to the complex, and thereby result in the fluorescence quenching of AuNCs. The fluorescence-quenching fractions of the sensor presented a satisfactory linearity with BPA concentrations over the range of 013.1 mu M and the detection limit could reach 0.10 mu M. Distinguished selectivity was also exhibited to BPA over other possibly competing molecules. Moreover, the sensor was successfully applied to determine BPA in seawater, and the average recoveries of BPA at three spiking levels ranged from 91.3 to 96.2% with relative standard deviations below 4.8%. This AuNCs-MIPs based sensor provided great potentials for recognition and determination of phenolic environmental estrogens in complicated samples. (C) 2015 Elsevier B.V. All rights reserved.; A flexible fluorescent sensing strategy for the recognition and detection of bisphenol A (BPA) has been proposed based on molecularly imprinted polymers (MIPs)-coated gold nanoclusters (AuNCs), by taking advantages of the high selectivity of MIPs and the strong fluorescence property of AuNCs. SiO2@AuNCs were initially prepared by making use of the powerful amido bonds between carboxyl-terminated AuNCs and amino-functionalized SiO2 nanoparticles. Then MIPs-coated AuNCs were formed by anchoring MIP layer on the surface of SiO2@AuNCs via a solgel process. In the presence of imprinting template BPA, a Meisenheimer complex could be formed between BPA and the primary amino groups on the surface of the AuNCs, and the photoluminescent energy of AuNCs would be transferred to the complex, and thereby result in the fluorescence quenching of AuNCs. The fluorescence-quenching fractions of the sensor presented a satisfactory linearity with BPA concentrations over the range of 013.1 mu M and the detection limit could reach 0.10 mu M. Distinguished selectivity was also exhibited to BPA over other possibly competing molecules. Moreover, the sensor was successfully applied to determine BPA in seawater, and the average recoveries of BPA at three spiking levels ranged from 91.3 to 96.2% with relative standard deviations below 4.8%. This AuNCs-MIPs based sensor provided great potentials for recognition and determination of phenolic environmental estrogens in complicated samples. (C) 2015 Elsevier B.V. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | QUANTUM DOTS ; SURFACE ; CHEMOSENSORS ; RECOGNITION ; CARRIERS ; HYBRID |
| 研究领域[WOS] | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| WOS记录号 | WOS:000350003700064 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/8629 |
| 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 | You, HY (reprint author), Dalian Univ, Environm & Chem Engn Coll, Dalian 116622, Peoples R China. dlyhy@dicp.ac.cn; lxchen@yic.ac.cn |
| 作者单位 | 1.Dalian Univ, Environm & Chem Engn Coll, Dalian 116622, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 3.Zhejiang Univ, Coll Biosyst Engn & Food Sci, Hangzhou 310058, Zhejiang, Peoples R China 4.Univ Arkansas, Dept Biol & Agr Engn, Fayetteville, AR 72701 USA 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Xiaqing,Zhang, Zhong,Li, Jinhua,et al. Molecularly imprinted polymers-coated gold nanoclusters for fluorescent detection of bisphenol A[J]. SENSORS AND ACTUATORS B-CHEMICAL,2015,211:507-514. |
| APA | Wu, Xiaqing.,Zhang, Zhong.,Li, Jinhua.,You, Huiyan.,Li, Yanbin.,...&lxchen@yic.ac.cn.(2015).Molecularly imprinted polymers-coated gold nanoclusters for fluorescent detection of bisphenol A.SENSORS AND ACTUATORS B-CHEMICAL,211,507-514. |
| MLA | Wu, Xiaqing,et al."Molecularly imprinted polymers-coated gold nanoclusters for fluorescent detection of bisphenol A".SENSORS AND ACTUATORS B-CHEMICAL 211(2015):507-514. |
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