期刊
ANALYTICA CHIMICA ACTA
卷 879, 期 -, 页码 97-103出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2015.03.036
关键词
Gold nanoclusters; Polymer protected gold nanoparticles; Fluorescent turn-on sensing; Determination of L-cysteine
资金
- NSFC [21375132, 21205125, 21175138, 21475137, 21135006, 21321003]
- Chinese Academy of Sciences
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据