Molecularly imprinted nanoparticles based potentiometric sensor with a nanomolar detection limit

	Molecularly imprinted nanoparticles based potentiometric sensor with a nanomolar detection limit
其他题名	Nanostructured iron(III)-copper(II) binary oxide A novel adsorbent for enhanced arsenic removal from aqueous solutions.pdf
	Liang, Rongning1,2 ; Kou, Lijuan 1,2; Chen, Zhaopeng1 ; Qin, Wei1
发表期刊	SENSORS AND ACTUATORS B-CHEMICAL
ISSN	0925-4005
	2013-11-01
卷号	188 页码:972-977
关键词	Potentiometric Sensors Molecularly Imprinted Nanoparticles Asymmetric Membranes Triclosan Trace-level Analysis
产权排序	[Liang, Rongning; Kou, Lijuan; Chen, Zhaopeng; Qin, Wei] Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai Inst Coastal Zone Res YIC,YICCAS, Yantai 264003, Shandong, Peoples R China; [Liang, Rongning; Kou, Lijuan] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
通讯作者	Qin, W (reprint author), Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai Inst Coastal Zone Res YIC,YICCAS, Yantai 264003, Shandong, Peoples R China. wqin@yic.ac.cn
英文摘要	A novel molecularly imprinted nanoparticles based potentiometric sensor with a nanomolar detection limit has been described. Uniform-sized molecularly imprinted nanoparticles are utilized as a recognition receptor to provide a higher affinity since they have a larger binding capability and can be well dispersed in the polymeric membrane of an ion-selective electrode (ISE). The asymmetric membrane rotating ISE configuration is introduced to improve the detection sensitivity by enhancing the nonequilibrium steady-state potential response at the sample-membrane interface. It has been found that the proposed electrode shows a remarkably improved sensitivity over conventional potentiometric sensors based on molecularly imprinted polymers (MIPs). By using triclosan as a model, the new concept offers a low detection limit of 1.9 x 10(-9) molL(-1) in 0.2 M NaHCO3/Na2CO3 of pH 10.1, which is at least two orders of magnitude lower than those of conventional MIPs based potentiometric sensors. The practical application of the proposed sensor has been carried out for the detection of trace levels of triclosan in toothpaste samples. (C) 2013 Elsevier B.V. All rights reserved.; A novel molecularly imprinted nanoparticles based potentiometric sensor with a nanomolar detection limit has been described. Uniform-sized molecularly imprinted nanoparticles are utilized as a recognition receptor to provide a higher affinity since they have a larger binding capability and can be well dispersed in the polymeric membrane of an ion-selective electrode (ISE). The asymmetric membrane rotating ISE configuration is introduced to improve the detection sensitivity by enhancing the nonequilibrium steady-state potential response at the sample-membrane interface. It has been found that the proposed electrode shows a remarkably improved sensitivity over conventional potentiometric sensors based on molecularly imprinted polymers (MIPs). By using triclosan as a model, the new concept offers a low detection limit of 1.9 x 10(-9) molL(-1) in 0.2 M NaHCO3/Na2CO3 of pH 10.1, which is at least two orders of magnitude lower than those of conventional MIPs based potentiometric sensors. The practical application of the proposed sensor has been carried out for the detection of trace levels of triclosan in toothpaste samples. (C) 2013 Elsevier B.V. All rights reserved.
文章类型	Article
资助机构	Instrument Developing Project of the Chinese Academy of Sciences [YZ201161]; National Natural Science Foundation of China [41206087, 20977073]; Department of Science and Technology of Shandong Province [BS2009DX006]; Taishan Scholar Program of Shandong Province [TS20081159]
收录类别	SCI
语种	英语
关键词[WOS]	ION-SELECTIVE ELECTRODES ; SENSITIVE MEMBRANE ELECTRODES ; POLYMER ; MICROSPHERES ; TRICLOSAN ; DIFFUSION ; SURFACE ; FLUXES
研究领域[WOS]	Chemistry ; Electrochemistry ; Instruments & Instrumentation
WOS记录号	WOS:000326345600130
引用统计	被引频次：40[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/6940
专题	中国科学院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai Inst Coastal Zone Res YIC,YICCAS, Yantai 264003, Shandong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liang, Rongning,Kou, Lijuan,Chen, Zhaopeng,et al. Molecularly imprinted nanoparticles based potentiometric sensor with a nanomolar detection limit[J]. SENSORS AND ACTUATORS B-CHEMICAL,2013,188:972-977.
APA	Liang, Rongning,Kou, Lijuan,Chen, Zhaopeng,&Qin, Wei.(2013).Molecularly imprinted nanoparticles based potentiometric sensor with a nanomolar detection limit.SENSORS AND ACTUATORS B-CHEMICAL,188,972-977.
MLA	Liang, Rongning,et al."Molecularly imprinted nanoparticles based potentiometric sensor with a nanomolar detection limit".SENSORS AND ACTUATORS B-CHEMICAL 188(2013):972-977.

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