Synthesis, photoluminescence and bioconjugation of rare-earth (Eu) complexes-embedded silica nanoparticles

被引：20
作者：
Wang, Yan
Qin, Weiping
Zhang, Jisen
Cao, Chunyan
Zhang, Jishuang
Jin, Ye
Ren, Xinguang
Zheng, Zhuhong
Lu, Shaozhe
机构：
[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrat Optoelect, Changchun 130012, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Excited State Proc, Changchun 130033, Peoples R China
[3] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2007年 / 142卷 / 12期
基金：
中国国家自然科学基金;
关键词：
rare-earth complexes; nanoparticles; streptavidin; luminescence;
D O I：
10.1016/j.ssc.2007.04.038
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Eu(DBM)(3)Phen-embedded silica nanoparticles were synthesized in water-in-oil (W/O) microemulsion containing aqueous phase of Eu(DBM)(3)Phen, surfactant Triton X-100, cosurfactant octanol and oil-phase cyclohexane. The size and morphology of the nanoparticles were characterized by transmission electron microscopy (TEM). The low-temperature time-resolved emission spectra indicate that the Eu complex in the silica nanoparticles have longer lifetime than that of the pure complex. Under 355 nm continuous excitation, the nanoparticles show high resistance to photobleaching. The free amino groups were attached to silica surfaces by copolymerization of 3-aminopropyl(triethoxy)silane. Preliminary results demonstrated that the silica-coated Eu complex nanoparticles can be a probe in the detection of biomolecular interactions. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：689 / 693
页数：5
相关论文
共 37 条
[1]   Semiconductor nanocrystals as fluorescent biological labels [J].
Bruchez, M ;
Moronne, M ;
Gin, P ;
Weiss, S ;
Alivisatos, AP .
SCIENCE, 1998, 281 (5385) :2013-2016
[2]   Atomic scale movement of the voltage-sensing region in a potassium channel measured via spectroscopy [J].
Cha, A ;
Snyder, GE ;
Selvin, PR ;
Bezanilla, F .
NATURE, 1999, 402 (6763) :809-813
[3]   Quantum dot bioconjugates for ultrasensitive nonisotopic detection [J].
Chan, WCW ;
Nie, SM .
SCIENCE, 1998, 281 (5385) :2016-2018
[4]   Quantum-dot-tagged microbeads for multiplexed optical coding of biomolecules [J].
Han, MY ;
Gao, XH ;
Su, JZ ;
Nie, S .
NATURE BIOTECHNOLOGY, 2001, 19 (07) :631-635
[5]  
JIAN Z, 2005, ANGEW CHEM INT EDIT, V44, P2508
[6]   Fluorescent probes for living cells [J].
Johnson, I .
HISTOCHEMICAL JOURNAL, 1998, 30 (03) :123-140
[7]   OPTICAL ABSORPTION INTENSITIES OF RARE-EARTH IONS [J].
JUDD, BR .
PHYSICAL REVIEW, 1962, 127 (03) :750-&
[8]   DIRECT-DETECTION OF NUCLEIC-ACID HYBRIDIZATION ON THE SURFACE OF A CHARGE-COUPLED-DEVICE [J].
LAMTURE, JB ;
BEATTIE, KL ;
BURKE, BE ;
EGGERS, MD ;
EHRLICH, DJ ;
FOWLER, R ;
HOLLIS, MA ;
KOSICKI, BB ;
REICH, RK ;
SMITH, SR ;
VARMA, RS ;
HOGAN, ME .
NUCLEIC ACIDS RESEARCH, 1994, 22 (11) :2121-2125
[9]   Rh-catalyzed kinetic resolution of enynes and highly enantioselective formation of 4-alkenyl-2,3-disubstituted tetrahydrofurans [J].
Lei, AW ;
He, MS ;
Zhang, XM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (38) :11472-11473
[10]   Preparation and luminescence properties of ormosil material doped with Eu(TTA)3phen complex [J].
Li, HR ;
Zhang, HJ ;
Lin, J ;
Wang, SB ;
Yang, KY .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2000, 278 (1-3) :218-222
1234