Sequential synthesis of core-shell nanoparticles using reverse micelles
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United States of America Patent
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Aug 10, 2004
Grant Date -
Jun 6, 2002
app pub date -
Apr 9, 2001
filing date -
Apr 7, 2000
priority date (Note) -
Expired
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Abstract
By utilizing the sequential synthesis afforded reverse micelles, nanocomposite materials can be synthesized which have a diamagnetic core surrounded by a thin shell of ferromagnetic material passivated with a second shell of a diamagnet. Using gold as the diamagnetic material and iron as the ferromagnetic material, nanocomposites can be synthesized where there is a thin layer of the magnetic material, which is passivated and protected from oxidation. In this case, all of the spins of the magnetic layer lie within the surface of the particle.
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