Purification and magnetic interrogation of hybrid Au-Fe3O 4 and FePt-Fe3O4 nanoparticles

Jacob S. Beveridge, Matthew R. Buck, James F. Bondi, Rajiv Misra, Peter Schiffer, Raymond E. Schaak, Mary Elizabeth Williams

Research output: Contribution to journalArticlepeer-review

Abstract

Purifying heterodimers: Differential magnetic catch and release separation is used to purify two important hybrid nanocrystal systems, Au-Fe 3O4 and FePt-Fe3O4. The purified samples have substantially different magnetic properties compared to the as-synthesized materials: the magnetization values are more accurate and magnetic polydispersity is identified in morphologically similar hybrid nanoparticles.

Original languageEnglish (US)
Pages (from-to)9875-9879
Number of pages5
JournalAngewandte Chemie - International Edition
Volume50
Issue number42
DOIs
StatePublished - Oct 10 2011
Externally publishedYes

Keywords

  • heterostructures
  • hybrid nanocrystals
  • magnetic nanoparticles
  • nanostructures
  • purification

ASJC Scopus subject areas

  • General Chemistry
  • Catalysis

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