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Core-Shell Nanoarchitectures: A Strategy To Improve the Efficiency of Luminescence Resonance Energy Transfer
Song, Cuihong1; Ye, Zhiqiang2; Wang, Guilan2; Yuan, Jingli1,2; Guan, Yafeng1; Yuan JL(袁景利); Guan YF(关亚风)
关键词Terbium Chelate Tetramethylrhodamine Core-shell Nanoparticle Luminescence Resonance Energy Transfer
刊名ACS NANO
2010-09-01
DOI10.1021/nn100820u
4期:9页:5389-5397
收录类别SCI
文章类型Article
部门归属1
项目归属105
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]TIME-RESOLVED FLUORESCENCE ; SILICA NANOPARTICLES ; TERBIUM CHELATE ; QUANTUM DOTS ; COMPLEXES ; IMMUNOASSAYS ; FLUOROMETRY ; PRINCIPLES ; ACCEPTOR ; SENSOR
英文摘要The development of core-shell nanoparticles has shown a wide range of new applications in the fields of chemistry, bioscience, and materials science because of their improved physical and chemical properties over their single-component counterparts. In the present work, we took the core-shell nanoarchitectures as an example to research the luminescence resonance energy transfer (LRET) process between a luminescent Tb(3+) chelate, N,N,N(1),N(1)-[4`-phenyl-2,2`:6`,2`-terpyridine-6,6`-diyl]bis(methylenenitrilo)tetrakis(acetate)-Tb(3+) (PTTA-Tb(3+)), and an organic dye, 5-carboxytetramethylrhodamine (CTMR). PTTA-Tb(3+) and CTMR were chosen as the donor-acceptor pair of LRET in our model construction because of their effective spectral overlapping. The core shell nanoparticles featuring a CTMR-SiO(2) core surrounded by a concentric PTTA-Tb(3+)-SiO(2) shell were prepared using a reverse microemulsion method. These nanoparticles are spherical, uniform in size, and highly photostable. The results of LRET experiments show that the sensitized emission lifetime of the acceptor in the nanoparticles is significantly prolonged (similar to 246 mu s), which is attributed to the long emission lifetime of the Tb(3+) chelate donor. According to the results of the steady-state and time-resolved luminescence spectroscopy, an energy transfer efficiency of similar to 80% and a large Forster distance between the donor and the acceptor in the core-shell nanoparticles are calculated, respectively. The new core-shell nanoparticles with a high LRET efficiency and long Forster distance enable them to be promising optical probes for a variety of possible applications such as molecular imaging and multiplex signaling.
语种英语
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WOS记录号WOS:000282121000054
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/103405
专题中国科学院大连化学物理研究所
通讯作者Yuan JL(袁景利); Guan YF(关亚风)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Instrumentat & Analyt Chem, Dalian 116023, Peoples R China
2.Dalian Univ Technol, Sch Chem, State Key Lab Fine Chem, Dalian 116012, Peoples R China
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Song, Cuihong,Ye, Zhiqiang,Wang, Guilan,et al. Core-Shell Nanoarchitectures: A Strategy To Improve the Efficiency of Luminescence Resonance Energy Transfer[J]. ACS NANO,2010,4(9):5389-5397.
APA Song, Cuihong.,Ye, Zhiqiang.,Wang, Guilan.,Yuan, Jingli.,Guan, Yafeng.,...&关亚风.(2010).Core-Shell Nanoarchitectures: A Strategy To Improve the Efficiency of Luminescence Resonance Energy Transfer.ACS NANO,4(9),5389-5397.
MLA Song, Cuihong,et al."Core-Shell Nanoarchitectures: A Strategy To Improve the Efficiency of Luminescence Resonance Energy Transfer".ACS NANO 4.9(2010):5389-5397.
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