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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)
KeywordTerbium Chelate Tetramethylrhodamine Core-shell Nanoparticle Luminescence Resonance Energy Transfer
Source PublicationACS NANO
2010-09-01
DOI10.1021/nn100820u
Volume4Issue:9Pages:5389-5397
Indexed BySCI
SubtypeArticle
Department1
Funding Project105
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordTIME-RESOLVED FLUORESCENCE ; SILICA NANOPARTICLES ; TERBIUM CHELATE ; QUANTUM DOTS ; COMPLEXES ; IMMUNOASSAYS ; FLUOROMETRY ; PRINCIPLES ; ACCEPTOR ; SENSOR
AbstractThe 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.
Language英语
URL查看原文
WOS IDWOS:000282121000054
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/103405
Collection中国科学院大连化学物理研究所
Corresponding AuthorYuan JL(袁景利); Guan YF(关亚风)
Affiliation1.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
Recommended Citation
GB/T 7714
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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