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

	Fluorescent probe for turn-on sensing of L-cysteine by ensemble of AuNCs and polymer protected AuNPs
	Xu, Xiaozhe 1,3; Qiao, Juan 1; Li, Nan 1,2; Qi, Li 1; Zhang, Shufeng 3
刊名	ANALYTICA CHIMICA ACTA
	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
内容类型	期刊论文
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.