Synthesis and bio-functionalization of multifunctional magnetic Fe3O4@Y2O3:Eu nanocomposites
2009; Royal Society of Chemistry; Volume: 19; Issue: 27 Linguagem: Inglês
10.1039/b901427f
ISSN1364-5501
AutoresZhi Ya, Dosi Dosev, Mikaela Nichkova, Shirley J. Gee, Bruce D. Hammock, Ian M. Kennedy,
Tópico(s)Advanced Nanomaterials in Catalysis
ResumoA facile homogenous precipitation method has been developed for the synthesis of multifunctional, magnetic, luminescent nanocomposites with Fe3O4 nanoparticles as the core and europium-doped yttrium oxide (Y2O3:Eu) as the shell. The nanocomposites showed both super-paramagnetic behavior and unique europium fluorescence properties with high emission intensity. Their surface has been modified with a bifunctional ligand, p-aminobenzoic acid (PABA), and further biofunctionalized with biotin; the nanocomposites showed specific targeting for avidin-coupled polystyrene beads.
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