Smartphone-assisted ratiometric fluorescence sensor based on NS-codoped carbon dots/Au nanoclusters for rapid detection of Hg2+

作者全名："Zhang, Jieyuan; Wang, Ting; Du, Yuxuan; Wu, Yue; Jiang, Xinhui; Zou, Hecun; Zhang, Zhengwei"

作者地址："[Zhang, Jieyuan; Wang, Ting; Du, Yuxuan; Wu, Yue; Jiang, Xinhui; Zou, Hecun; Zhang, Zhengwei] Chongqing Med Univ, Coll Pharm, Chongqing 400016, Peoples R China; [Zou, Hecun] Chongqing Med Univ, Inst Life Sci, Chongqing 400016, Peoples R China; [Wang, Ting] Chongqing Med & Pharmaceut Coll, Affiliated Hosp 1, Dept Pharm, Chongqing 400060, Peoples R China"

通信作者："Zou, HC; Zhang, ZW (通讯作者)，Chongqing Med Univ, Coll Pharm, Chongqing 400016, Peoples R China.; Zou, HC (通讯作者)，Chongqing Med Univ, Inst Life Sci, Chongqing 400016, Peoples R China."

来源：MICROCHEMICAL JOURNAL

ESI学科分类：CHEMISTRY

WOS号：WOS:001202811900001

JCR分区：Q1

影响因子：4.8

年份：2024

卷号：199

期号：　

开始页：　

结束页：　

文献类型：Article

关键词：NSCDs; AuNCs; Mercury ion; Ratiometric fluorescence; Smartphone sensing

摘要："Mercury metal can be absorbed into human body through the food chain, and cause considerable harm to human health. Herein, a novel smartphone-enabled ratiometric fluorescence sensing system, which was made up of nitrogen -sulfur co-doped carbon dots (NSCDs) and Au nanoclusters (AuNCs), had developed for rapid detection of mercury ion (Hg2+). The NSCDs/AuNCs displayed dual -emission fluorescence at 406/690 nm. After introducing Hg2+, the fluorescence at 690 nm was obviously quenched, while the signal around 406 nm was slightly attenuated, causing a color change from pink-purple to blue. Under the most suitable conditions, the ratiometric fluorescence probe had two linear ranges of 0.05-3.0 and 3.0-7.0 mu M with a low limit of detection (LOD) of 18 nM. The approach was utilized to detect Hg2+ in real water samples. Furthermore, a portable smartphoneassisted sensing platform based on NSCDs/AuNCs provides a simple, affordable, and efficient method for monitoring Hg2+ in the environments and other fields."

基金机构："National Natural Science Foundation of China [82003713, 82003854]; Natural Science Foundation of Chongqing [cstc2020jcyj-msxmX0158, cstc2021jcyj-msxmX0302]; CQMU Program for Youth Innovation in Future Medicine [W0152]"

基金资助正文："This work was funded by the National Natural Science Foundation of China (82003713 and 82003854) , the Natural Science Foundation of Chongqing (cstc2020jcyj-msxmX0158 and cstc2021jcyj-msxmX0302) , and CQMU Program for Youth Innovation in Future Medicine (W0152) ."