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 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.
Choi
Jungkweon
J
Div. of Metrology for Quality Life, Korea Research Institute of Standards and Science, Yuseong P. O. Box 102, Daejeon, 305-600, Korea.
Kim
Jin Chul
JC
Lee
Yong Bok
YB
Kim
In Seon
IS
Park
Yong Ki
YK
Hur
Nam Hwi
NH
D028581:Lanthanoid Series Elements; D049408:Luminescent Agents / Q000138:chemical synthesis / Q000737:chemistry*; D008280:Magnetics; D015394:Molecular Structure; D053758:Nanoparticles / Q000737:chemistry*; D010777:Photochemistry; D012822:Silicon Dioxide / Q000737:chemistry*; D013059:Spectrum Analysis, Raman
D028581:Lanthanoid Series Elements; D049408:Luminescent Agents; D012822:Silicon Dioxide