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题名: A europium(III) complex as an efficient singlet oxygen luminescence probe
作者: Song, Bo;  Wang, Guilan;  Tan, Mingqian;  Yuan, Jingli
通讯作者: 袁景利
刊名: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
发表日期: 2006-10-18
DOI: 10.1021/ja062990f
卷: 128, 期:41, 页:13442-13450
收录类别: SCI ;  IC
文章类型: Article
部门归属: 1
项目归属: 101
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: A new europium(III) complex, [4'-(10-methyl-9-anthryl)-2,2': 6', 2"-terpyridine-6,6"-diyl] bis(methylenenitrilo) tetrakis(acetate)-Eu(3+), was designed and synthesized as a highly sensitive and selective time-gated luminescence probe for singlet oxygen ((1)O(2)). The new probe is highly water soluble with a large stability constant of similar to 10(21) and a wide pH available range (pH 3-10), and can specifically react with (1)O(2) to form its endoperoxide (EP-MTTA-Eu(3+)) with a high reaction rate constant at 10(10) M(-1) s(-1), accompanied by the remarkable increases of luminescence quantum yield from 0.90% to 13.8% and lifetime from 0.80 to 1.29 ms, respectively. The wide applicability of the probe was demonstrated by detection of (1)O(2) generated from a MoO(4)(2-)/H(2)O(2) system, a photosensitization system of 5,10,15,20-tetrakis(1-methyl-4-pyridinio)-porphyrin tetra(p-toluenesulfonate) (TMPyP), and a horseradish peroxidase catalyzed aerobic oxidation system of indole-3-acetic acid (IAA). In addition, it was found that the new probe could be easily transferred into living HeLa cells by incubation with TMPyP. A time-gated luminescence imaging technique that can fully eliminate the short-lived background fluorescence from TMPyP and cell components has been successfully developed for monitoring the time-dependent generation of (1)O(2) in living cells.
关键词[WOS]: TIME-RESOLVED FLUORESCENCE ;  PEROXIDASE-CATALYZED OXIDATION ;  DIELS-ALDER REACTIONS ;  MOLECULAR-OXYGEN ;  PHOTODYNAMIC THERAPY ;  HYDROGEN-PEROXIDE ;  LANTHANIDE COMPLEXES ;  CHELATE ;  GENERATION ;  CELL
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000241157600039
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/97917
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Analyt Chem, Dalian 116023, Peoples R China
2.Dalian Univ Technol, State Key Lab Fine Chem, Dept Chem, Dalian 116012, Peoples R China

Recommended Citation:
Song, Bo,Wang, Guilan,Tan, Mingqian,et al. A europium(III) complex as an efficient singlet oxygen luminescence probe[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2006,128(41):13442-13450.
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