Fabrication of silica-coated magnetic nanoparticles with highly photoluminescent lanthanide probes

被引:63
作者
Choi, Jungkweon
Kim, Jin Chul
Lee, Yong Bok
Kim, In Seon
Park, Yong Ki
Hur, Nam Hwi [1 ]
机构
[1] Sogang Univ, Dept Chem, Seoul 121742, South Korea
[2] Korea Res Inst Stand & Sci, Div Metrol Qual Life, Taejon 305600, South Korea
[3] Gyeongin Reg Food & Drug Adm, Korea Ctr Food, Inchon 402835, South Korea
[4] Gyeongin Reg Food & Drug Adm, Drug Inspect Hazard Anal Team, Inchon 402835, South Korea
[5] Korea Basic Sci Inst, Div Electron Microscop Res, Taejon 305333, South Korea
关键词
D O I
10.1039/b617608a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Bi-functional nanoparticles (NPs) that consist of silica-coated magnetic cores and luminescent lanthanide (Ln) ions anchored on the silica surface via organic linker molecules are reported. Compared to individual Ln ions, the hybrid NPs show a drastically enhanced photoluminescence due to the efficient ligand-to-metal energy transfer in the Ln-loaded NPs: the new bi-functional NPs could be used in a variety of biological applications involving magnetic separation and optical detection.
引用
收藏
页码:1644 / 1646
页数:3
相关论文
共 26 条
[1]  
[Anonymous], EUR CELLS MAT
[2]   Luminescent and redox-active polynuclear transition metal complexes [J].
Balzani, V ;
Juris, A ;
Venturi, M ;
Campagna, S ;
Serroni, S .
CHEMICAL REVIEWS, 1996, 96 (02) :759-833
[3]   Benefiting from the unique properties of lanthanide ions [J].
Bünzli, JCG .
ACCOUNTS OF CHEMICAL RESEARCH, 2006, 39 (01) :53-61
[4]  
BUNZLI JCG, 1989, LANTHANIDE PROBES LI, P238
[5]   Characterization and spectroscopic studies of Eu3+ and Tb3+ complexes with 2,2′-bipyridine-4,4′-dicarboxylic acid [J].
Calefi, PS ;
Ribeiro, AO ;
Pires, AM ;
Serra, OA .
JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 344 (1-2) :285-288
[6]   In situ infrared spectroscopic analysis of the adsorption of ruthenium(II) bipyridyl dicarboxylic acid photosensitisers to TiO2 in aqueous solutions [J].
Duffy, NW ;
Dobson, KD ;
Gordon, KC ;
Robinson, BH ;
McQuillan, AJ .
CHEMICAL PHYSICS LETTERS, 1997, 266 (5-6) :451-455
[7]   Vibrational spectroscopic study of the coordination of (2,2′-bipyridyl-4,4′-dicarboxylic acid)ruthenium(II) complexes to the surface of nanocrystalline titania [J].
Finnie, KS ;
Bartlett, JR ;
Woolfrey, JL .
LANGMUIR, 1998, 14 (10) :2744-2749
[8]   Luminescent polymer microcapsules addressable by a magnetic field [J].
Gaponik, N ;
Radtchenko, IL ;
Sukhorukov, GB ;
Rogach, AL .
LANGMUIR, 2004, 20 (04) :1449-1452
[9]   γ-Fe2O3/II-VI sulfide nanocrystal heterojunctions [J].
Kwon, KW ;
Shim, M .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (29) :10269-10275
[10]   PERSPECTIVES IN SUPRAMOLECULAR CHEMISTRY - FROM MOLECULAR RECOGNITION TOWARDS MOLECULAR INFORMATION-PROCESSING AND SELF-ORGANIZATION [J].
LEHN, JM .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1990, 29 (11) :1304-1319