Bifunctional magnetic-optical nanocomposites: grafting lanthanide complex onto core-shell magnetic silica nanoarchitecture.
A new class of bifunctional architecture combining the useful functions of superparamagnetism and terbium complex luminescence into one material has been prepared via two main steps by a modified Stöber method and the layer-by-layer (LbL) assembly technique. The obtained bifunctional nanocomposites exhibit superparamagnetic behavior, high fluorescence intensity, and color purity. The architecture has been characterized by field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), UV-vis absorption and emission spectroscopy, X-ray diffraction, and superconducting quantum interference device (SQUID) magnetometry.
Yu
Shi-Yong
SY
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
Zhang
Hong-Jie
HJ
Yu
Jiang-Bo
JB
Wang
Cheng
C
Sun
Li-Ning
LN
Shi
Wei-Dong
WD
D028581:Lanthanoid Series Elements / Q000737:chemistry*; D049449:Luminescence; D008163:Luminescent Measurements; D008280:Magnetics; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D009942:Organometallic Compounds / Q000138:chemical synthesis*; D012822:Silicon Dioxide / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature; D013725:Terbium / Q000737:chemistry*; D013997:Time Factors; D014961:X-Ray Diffraction
D028581:Lanthanoid Series Elements; D009942:Organometallic Compounds; D013725:Terbium; D012822:Silicon Dioxide