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Integrated magnetic bionanocomposites through nanoparticle-mediated assembly of ferritin.

Authors
  • Srivastava, Sudhanshu
  • Samanta, Bappaditya
  • Jordan, Brian J
  • Hong, Rui
  • Xiao, Qijun
  • Tuominen, Mark T
  • Rotello, Vincent M
Type
Published Article
Journal
Journal of the American Chemical Society
Publication Date
Sep 26, 2007
Volume
129
Issue
38
Pages
11776–11780
Identifiers
PMID: 17803305
Source
Medline
License
Unknown

Abstract

Magnetic (FePt) and nonmagnetic (Au) nanoparticles were used to assemble ferritin into near-monodisperse bionanocomposites featuring regular interparticle spacing. The FePt/ferritin assemblies are integrated magnetic materials with ferritin providing added magnetic volume fraction to the magnetic nanocomposite. These assemblies differ from either of their constituent particles in terms of blocking temperature (TB), net magnetic moment, coercivity, and remnance.

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