中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Study on the fluorescence resonance energy transfer between CdTe QDs and butyl-rhodamine B in the presence of CTMAB and its application on the detection of Hg(II)
作者: Li, Juan1;  Mei, Fang1;  Li, Wen-You1;  He, Xi-Wen1;  Zhang, Yu-Kui1, 2
关键词: fluorescence resonance energy transfer ;  CdTe quantum dots ;  butyl-rhodamine B ;  Hg(II) ;  detection
刊名: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
发表日期: 2008-09-01
DOI: 10.1016/j.saa.2007.09.017
卷: 70, 期:4, 页:811-817
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Spectroscopy
研究领域[WOS]: Spectroscopy
英文摘要: The thioglycolic acid-functionalized CdTe quantum dots (QDs) were synthesized in aqueous solution using safe and low-cost inorganic salts as precursors. Fluorescence resonance energy transfer (FRET) system was constructed between CdTe QDs (donor) and butyl-rhodamine B (BRB) (acceptor) in the presence of cetyltrimethylammonium bromide (CTMAB). CTMAB micelles formed in water reduced the distance between the donor and the acceptor significantly and thus improved the FRET efficiency, which resulted in an obvious fluorescence enhancement of the acceptor. Several factors which impacted the fluorescence spectra of the FRET system were studied. The energy transfer efficiency (E) and the distance (r) between CdTe and BRB were obtained. The feasibility of the prepared FRET system as fluorescence probe for detecting Hg(II) in aqueous solution was demonstrated. At pH 6.60, a linear relationship could be established between the quenched fluorescence intensity of BRB and the concentration of Hg(II) in the range of 0.0625-2.5 mu mol L(-1). The limit of detection was 20.3 nmol L(-1). The developed method was proved to be sensitive and repeatable to detect Hg(II) in a wide range in aqueous solutions. (C) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: AQUEOUS-SOLUTION ;  QUANTUM DOTS ;  NANOCRYSTALS ;  NANOPARTICLES ;  PROBE ;  ION
语种: 英语
WOS记录号: WOS:000258363300016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140891
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog Res & Anal Ctr, Dalian 116011, Peoples R China

Recommended Citation:
Li, Juan,Mei, Fang,Li, Wen-You,et al. Study on the fluorescence resonance energy transfer between CdTe QDs and butyl-rhodamine B in the presence of CTMAB and its application on the detection of Hg(II)[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2008,70(4):811-817.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Li, Juan]'s Articles
 [Mei, Fang]'s Articles
 [Li, Wen-You]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Li, Juan]‘s Articles
 [Mei, Fang]‘s Articles
 [Li, Wen-You]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace