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Manipulation of Chemically Synthesized FePt Nanoparticles in Water: Core–Shell Silica/FePt Nanocomposites
Author(s) -
SalgueiriñoMaceira Verónica,
CorreaDuarte Miguel A.,
Farle Michael
Publication year - 2005
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200500135
Subject(s) - nanoparticle , materials science , adsorption , polyelectrolyte , nanocomposite , monolayer , chemical engineering , nanotechnology , layer (electronics) , core (optical fiber) , solvent , shell (structure) , layer by layer , morphology (biology) , electrostatic interaction , organic chemistry , polymer , composite material , chemistry , chemical physics , biology , engineering , genetics
FePt‐functionalized silica particles (see Figure) have been developed with controlled core–shell morphology using the layer‐by‐layer sequential adsorption technique of polyelectrolytes that favor the further adsorption of one monolayer of FePt nanoparticles. The FePt nanoparticles (synthesized in an organic solvent; inset) can be manipulated in water by exploiting electrostatic interactions. Such a procedure allows the preparation of FePt shells with predictable technological applications.