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. 2013 Mar 21;5(6):2511-9.
doi: 10.1039/c3nr33374d.

Polyoxometalate-stabilized, water dispersible Fe₂Pt magnetic nanoparticles

K M Seemann  1 , A Bauer, J Kindervater, M Meyer, C Besson, M Luysberg, P Durkin, W Pyckhout-Hintzen, N Budisa, R Georgii, C M Schneider, P Kögerler
Affiliations

Polyoxometalate-stabilized, water dispersible Fe₂Pt magnetic nanoparticles

K M Seemann et al. Nanoscale. .

Abstract

Magnetic Fe2Pt core-shell nanoparticles with 2 nm cores were synthesized with a monolayer coating of silicotungstate Keggin clusters. The core-shell composition is substantiated by structural analysis performed using high-resolution scanning transmission electron microscopy (HR-STEM) and small angle X-ray scattering (SAXS) in a liquid suspension. The molecular metal oxide cluster shell introduces an enhanced dispersibility of the magnetic Fe-Pt core-shell nanoparticles in aqueous media and thereby opens up new routes to nanoparticle bio-functionalization, for example, using pre-functionalized polyoxometalates.

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