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Fluorescent probe for turn-on sensing of L-cysteine by ensemble of AuNCs and polymer protected AuNPs

文献类型：期刊论文

作者Xu, Xiaozhe1,3; Qiao, Juan1; Li, Nan1,2; Qi, Li1; Zhang, Shufeng3
刊名ANALYTICA CHIMICA ACTA
出版日期2015-06-16
卷号879页码:97-103
关键词Gold nanoclusters Polymer protected gold nanoparticles Fluorescent turn-on sensing Determination of L-cysteine
英文摘要A new fluorescent probe based on ensemble of gold nanoclusters (AuNCs) and polymer protected gold nanoparticles (AuNPs) for turn-on sensing of L-cysteine was designed and prepared. The AuNCs were protected by bovine serum albumin and had strong fluorescence. The polymer protected AuNPs were synthesized by a facile in situ strategy at room temperature and could quench the fluorescence of AuNCs due to the Forster resonance energy transfer. Interestingly, it has been observed that the quenched fluorescence of AuNCs was recovered by L-cysteine, which could induce the aggregation of polymer protected AuNPs by sulfur group. Then the prepared fluorescent probe was successfully used for determination of L-Cys in human urines, which would have an evolving aspect and promote the subsequent exploration. (C) 2015 Elsevier B.V. All rights reserved.
收录类别SCI
语种英语
公开日期2016-05-09
源URL[http://ir.iccas.ac.cn/handle/121111/28117]  
专题化学研究所_活体分析化学实验室
作者单位1.Chinese Acad Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Tianjin Normal Univ, Coll Chem, Tianjin 300387, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Xiaozhe,Qiao, Juan,Li, Nan,et al. Fluorescent probe for turn-on sensing of L-cysteine by ensemble of AuNCs and polymer protected AuNPs[J]. ANALYTICA CHIMICA ACTA,2015,879:97-103.
APA Xu, Xiaozhe,Qiao, Juan,Li, Nan,Qi, Li,&Zhang, Shufeng.(2015).Fluorescent probe for turn-on sensing of L-cysteine by ensemble of AuNCs and polymer protected AuNPs.ANALYTICA CHIMICA ACTA,879,97-103.
MLA Xu, Xiaozhe,et al."Fluorescent probe for turn-on sensing of L-cysteine by ensemble of AuNCs and polymer protected AuNPs".ANALYTICA CHIMICA ACTA 879(2015):97-103.

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来源：化学研究所

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