Synthesis and bio-functionalization of multifunctional magnetic Fe(3)O(4)@Y(2)O(3):Eu nanocomposites.

نویسندگان

  • Zhi Ya Ma
  • Dosi Dosev
  • Mikaela Nichkova
  • Shirley J Gee
  • Bruce D Hammock
  • Ian M Kennedy
چکیده

A facile homogenous precipitation method has been developed for the synthesis of multifunctional, magnetic, luminescent nanocomposites with Fe(3)O(4) nanoparticles as the core and europium-doped yttrium oxide (Y(2)O(3):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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عنوان ژورنال:
  • Journal of materials chemistry

دوره 19 27  شماره 

صفحات  -

تاریخ انتشار 2009