Molecularly imprinted polymers-coated gold nanoclusters for fluorescent detection of bisphenol A

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

	Molecularly imprinted polymers-coated gold nanoclusters for fluorescent detection of bisphenol A
	Wu, Xiaqing 1,2; Zhang, Zhong 2,5; Li, Jinhua2 ; You, Huiyan 1; Li, Yanbin 3,4; Chen, Lingxin2
刊名	SENSORS AND ACTUATORS B-CHEMICAL
	2015-05-01
卷号	211 页码:507-514
关键词	Gold nanoclusters Molecularly imprinted polymers Fluorescent detection Bisphenol A
ISSN号	0925-4005
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
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
中文摘要	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.
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.
学科主题	Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
研究领域[WOS]	Chemistry ; Electrochemistry ; Instruments & Instrumentation
关键词[WOS]	QUANTUM DOTS ; SURFACE ; CHEMOSENSORS ; RECOGNITION ; CARRIERS ; HYBRID
收录类别	SCI
语种	英语
WOS记录号	WOS:000350003700064
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/8629]
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.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,&Chen, Lingxin.(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.