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

文献类型：期刊论文

作者Wang, Xiaobin3; Guo, Wei2; Wang, Xiaoling3; Hua, Qing3; Tang, Feiyan3; Li, Xin3; Luan, Feng3; Zhang, Zhiyang1; Tian, Chunyuan3; Zhuang, Xuming3
刊名ARABIAN JOURNAL OF CHEMISTRY
出版日期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
ISSN号1878-5352
DOI10.1016/j.arabjc.2022.104080
通讯作者Guo, Wei(guodawei0298@163.com) ; Zhuang, Xuming(xmzhuang@iccas.ac.cn) ; Zhao, Lijun(zhaoljytu@ytu.edu.cn)
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.
WOS关键词GOLD NANOPARTICLES ; MERCURY ; ION ; APTASENSOR ; EXPOSURE ; PROBE ; ACID
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000883519800010
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province
源URL[http://ir.yic.ac.cn/handle/133337/37227]  
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
烟台海岸带研究所_山东省海岸带环境工程技术研究中心
通讯作者Guo, Wei; Zhuang, Xuming; Zhao, Lijun
作者单位1.Chinese Acad Sci, Shandong Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Shandong Dyne Marine Biopharmaceut Co Ltd, Weihai 264300, Peoples R China
3.Yantai Univ, Coll Chem & Chem Engn, Yantai 264005, 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.

入库方式： OAI收割

来源：烟台海岸带研究所

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