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Magnetic properties of macroscopic colloid crystals of silica-coated FePt nanoparticles with controllable interstices for molecular separation
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10.1063/1.3070659
/content/aip/journal/jap/105/7/10.1063/1.3070659
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/7/10.1063/1.3070659
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Macroscopic colloidal crystals of silica-encapsulated FePt nanoparticles. (b) Low magnification TEM micrograph showing hcp packing of the nanoparticles. (c) High magnification TEM micrograph showing the core-shell structure of the nanoparticles.

Image of FIG. 2.
FIG. 2.

SAXS data (circles) modeled (line) with a best fit of a hcp crystal composed of monodisperse ellipsoids of , , and .

Image of FIG. 3.
FIG. 3.

Plot of magnetic moment per unit mass as a function of the applied field for two samples of silica-encapsulated FePt nanoparticles in the form of colloidal crystals and unaligned particle assemblies.

Image of FIG. 4.
FIG. 4.

Plot of the absorbance of (a) cytochrome B5 and (b) BSA protein as a function of time in the presence of the colloidal crystals with (diamonds) and without (squares) dc applied field. The solid lines were added as a guide for the eyes.

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/content/aip/journal/jap/105/7/10.1063/1.3070659
2009-02-09
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetic properties of macroscopic colloid crystals of silica-coated FePt nanoparticles with controllable interstices for molecular separation
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/7/10.1063/1.3070659
10.1063/1.3070659
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