title: Fabrication of silica-coated magnetic nanoparticles with highly photoluminescent lanthanide probes.
abstract: 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.
authors.affiliation: Div. of Metrology for Quality Life, Korea Research Institute of Standards and Science, Yuseong P. O. Box 102, Daejeon, 305-600, Korea.
authors.forename: Jungkweon
authors.initials: J
authors.lastname: Choi
authors.forename: Jin Chul
authors.initials: JC
authors.lastname: Kim
authors.forename: Yong Bok
authors.initials: YB
authors.lastname: Lee
authors.forename: In Seon
authors.initials: IS
authors.lastname: Kim
authors.forename: Yong Ki
authors.initials: YK
authors.lastname: Park
authors.forename: Nam Hwi
authors.initials: NH
authors.lastname: Hur
mesh_terms: 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
chemical_list: D028581:Lanthanoid Series Elements; D049408:Luminescent Agents; D012822:Silicon Dioxide