Ratiometric Fluorescent Ion Detection in Water with High Sensitivity via Aggregation-Mediated Fluorescence Resonance Energy Transfer Using a Conjugated Polyelectrolyte as an Optical Platform

doi:10.1002/marc.201200811

QIBEBT-IR > 先进有机功能材料研究组

	Ratiometric Fluorescent Ion Detection in Water with High Sensitivity via Aggregation-Mediated Fluorescence Resonance Energy Transfer Using a Conjugated Polyelectrolyte as an Optical Platform
	Le, Van Sang 1; Kim, Boram 1; Lee, Wonho 1; Jeong, Ji-Eun 1; Yang, Renqiang 2; Woo, Han Young 1
	2013-05-14
发表期刊	MACROMOLECULAR RAPID COMMUNICATIONS
卷号	34 期号:9 页码:772-778
摘要	A cationic conjugated polyelectrolyte was designed and synthesized based on poly(fluorene-co-phenylene) containing 5 mol% benzothiadiazole (BT) as a low energy trap and 15-crown-5 as a recognizing group for potassium ions. A potassium ion can form a sandwich-type 2:1 Lewis acid-based complex with 15-crown-5, to cause the intermolecular aggregation of polymers. This facilitates inter-chain fluorescence resonance energy transfer (FRET) to a low-energy BT segment, resulting in fluorescent signal amplification, even at dilute analyte concentrations. Highly sensitive and selective detection of K+ ions was demonstrated in water. The linear response of ratiometric fluorescent signal as a function of [K+] allows K+ quantification in a range of nanomolar concentrations with a detection limit of approximate to 0.7 x 109 M.
文章类型	Article
关键词	Aggregation Chemosensor Crown Ether Fluorescence Potassium
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1002/marc.201200811
关键词[WOS]	DNA CONCENTRATION DETERMINATION ; INTERPOLYELECTROLYTE COMPLEXES ; POTASSIUM ; SENSOR ; POLYMERS ; K+ ; TETRAHYDROFURAN ; QUANTIFICATION ; CHEMOSENSORS ; MOIETIES
收录类别	SCI
语种	英语
WOS研究方向	Polymer Science
WOS类目	Polymer Science
WOS记录号	WOS:000318354500011
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6035
专题	先进有机功能材料研究组
作者单位	1.Pusan Natl Univ, Dept Nanofus Technol, Dept Cognomechatron Engn, Miryang 627706, South Korea 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Le, Van Sang,Kim, Boram,Lee, Wonho,et al. Ratiometric Fluorescent Ion Detection in Water with High Sensitivity via Aggregation-Mediated Fluorescence Resonance Energy Transfer Using a Conjugated Polyelectrolyte as an Optical Platform[J]. MACROMOLECULAR RAPID COMMUNICATIONS,2013,34(9):772-778.
APA	Le, Van Sang,Kim, Boram,Lee, Wonho,Jeong, Ji-Eun,Yang, Renqiang,&Woo, Han Young.(2013).Ratiometric Fluorescent Ion Detection in Water with High Sensitivity via Aggregation-Mediated Fluorescence Resonance Energy Transfer Using a Conjugated Polyelectrolyte as an Optical Platform.MACROMOLECULAR RAPID COMMUNICATIONS,34(9),772-778.
MLA	Le, Van Sang,et al."Ratiometric Fluorescent Ion Detection in Water with High Sensitivity via Aggregation-Mediated Fluorescence Resonance Energy Transfer Using a Conjugated Polyelectrolyte as an Optical Platform".MACROMOLECULAR RAPID COMMUNICATIONS 34.9(2013):772-778.