Dual recognition strategy for ultra-sensitive fluorescent detection of Hg2+ at femto-molar level based on aptamer functionalized sulfur quantum dots

doi:10.1016/j.arabjc.2022.104080

	Dual recognition strategy for ultra-sensitive fluorescent detection of Hg2+ at femto-molar level based on aptamer functionalized sulfur quantum dots
	Wang, Xiaobin1 ; Guo, Wei 2; Wang, Xiaoling 1; Hua, Qing 1; Tang, Feiyan 1; Li, Xin 1; Luan, Feng 1; Zhang, Zhiyang3 ; Tian, Chunyuan 1; Zhuang, Xuming 1; Zhao, Lijun 1
发表期刊	ARABIAN JOURNAL OF CHEMISTRY
ISSN	1878-5352
	2022-09-01
卷号	15 期号:9 页码:11
关键词	Dual recognition strategy Sulfur quantum dots Aptamer Mercury ions Ultrasensitive
DOI	10.1016/j.arabjc.2022.104080
通讯作者	Guo, Wei([email protected]) ; Zhuang, Xuming([email protected]) ; Zhao, Lijun([email protected])
英文摘要	In the present study, a dual recognition strategy for ultrasensitive detection of Hg2+ was successfully developed for the first time based on aptamer functionalized sulfur quantum dots (AptSQDs). The developed Apt-SQDs not only retained the good fluorescence properties of quantum dots but also overcame the problem of poor selectivity of SQDs for heavy metal ions. This system used the dual recognition strategy, including the combination of S-x(2-) and Hg2+ and T-Hg2+-T structures to excellently identify and capture Hg2+, and an ultrahigh sensitivity fluorescent aptasensor was fabricated. The fluorescent aptasensor had a good response to Hg(2+ )at concentrations ranging of 10(-15) to 10(-7) M with an ultralow limit of detection of 0.3 fM, and the response to other metal ions was far less than that to Hg2+ . It was successfully applied to detect Hg2+ in nearby environmental water samples (tap water, lake water and river water) with a good recovery rate. Moreover, portable test papers that would be useful for Hg2+ monitoring in environmental water were designed. The dual recognition strategy not only achieves ultrasensitive fluorescent detection of Hg2+ but also provides a new insight into the further expansion of the application of SQDs. (C) 2022 The Authors. Published by Elsevier B.V. on behalf of King Saud University.
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province
收录类别	SCI
语种	英语
关键词[WOS]	GOLD NANOPARTICLES ; MERCURY ; ION ; APTASENSOR ; EXPOSURE ; PROBE ; ACID
研究领域[WOS]	Chemistry
WOS记录号	WOS:000883519800010
引用统计	被引频次：7[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/133337/37228
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
通讯作者	Guo, Wei; Zhuang, Xuming; Zhao, Lijun
作者单位	1.Yantai Univ, Coll Chem & Chem Engn, Yantai 264005, Peoples R China 2.Shandong Dyne Marine Biopharmaceut Co Ltd, Weihai 264300, Peoples R China 3.Chinese Acad Sci, Shandong Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiaobin,Guo, Wei,Wang, Xiaoling,et al. Dual recognition strategy for ultra-sensitive fluorescent detection of Hg2+ at femto-molar level based on aptamer functionalized sulfur quantum dots[J]. ARABIAN JOURNAL OF CHEMISTRY,2022,15(9):11.
APA	Wang, Xiaobin.,Guo, Wei.,Wang, Xiaoling.,Hua, Qing.,Tang, Feiyan.,...&Zhao, Lijun.(2022).Dual recognition strategy for ultra-sensitive fluorescent detection of Hg2+ at femto-molar level based on aptamer functionalized sulfur quantum dots.ARABIAN JOURNAL OF CHEMISTRY,15(9),11.
MLA	Wang, Xiaobin,et al."Dual recognition strategy for ultra-sensitive fluorescent detection of Hg2+ at femto-molar level based on aptamer functionalized sulfur quantum dots".ARABIAN JOURNAL OF CHEMISTRY 15.9(2022):11.