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Cover Picture: Luminescence Resonance Energy Transfer Sensors Based on the Assemblies of Oppositely Charged Lanthanide/Gold Nanoparticles in Aqueous Solution (Chem. Asian J. 10/2008)
Author(s) -
Gu JianQin,
Sun LingDong,
Yan ZhengGuang,
Yan ChunHua
Publication year - 2008
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.200890029
Subject(s) - lanthanide , luminescence , nanoparticle , surface plasmon resonance , colloidal gold , aqueous solution , materials science , photochemistry , doping , chemistry , nanotechnology , ion , optoelectronics , organic chemistry
Luminescence resonance energy transfer (LRET) based sensors are developed by L.‐D. Sun, C.‐H. Yan et al. from assemblies of oppositely charged donors and acceptors. The LRET sensors are based on lanthanide‐doped nanoparticles as donors and gold nanoparticles as acceptors which combine through electrostatic interactions between the oppositely charged nanoparticles. Negatively charged lanthanide‐doped nanoparticles, YVO 4 :Eu and LaPO 4 :Ce,Tb, with a high luminescence quantum yield and good water solubility, are synthesized through a polymer‐assisted hydrothermal method. The positively charged polyhedral and spherical gold nanoparticles exhibit surface plasmon resonance (SPR) bands which overlap well with the emission of the Eu 3+ and Tb 3+ ions within the lanthanide nanoparticles. For further details, turn to their Full Paper on page 1857 ff.