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

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 effici...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2007-04 (16), p.1644-1646
Main Authors: Choi, Jungkweon, Kim, Jin Chul, Lee, Yong Bok, Kim, In Seon, Park, Yong Ki, Hur, Nam Hwi
Format: Article
Language:English
Subjects:
Lanthanoid Series Elements
Luminescent Agents - chemical synthesis
Luminescent Agents - chemistry
Magnetics
Molecular Structure
Nanoparticles - chemistry
Photochemistry
Silicon Dioxide - chemistry
Spectrum Analysis, Raman
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Summary: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.
ISSN:1359-7345
1364-548X
DOI:10.1039/b617608a