Aqueous dispersion of monodisperse magnetic iron oxide nanocrystals through phase transfer

William W. Yu, Emmanuel Chang, Christie M. Sayes, Rebekah Drezek, Vicki L. Colvin

Research output: Contribution to journalArticlepeer-review

195 Scopus citations

Abstract

A facile method was developed for completely transferring high quality monodisperse iron oxide nanocrystals from organic solvents to water. The as-prepared aqueous dispersions of iron oxide nanocrystals were extremely stable and could be functionalized for bioconjugation with biomolecules. These iron oxide nanocrystals showed negligible cytotoxicity to human breast cancer cells (SK-BR-3) and human dermal fibroblast cells. This method is general and versatile for many organic solvent-synthesized nanoparticles, including fluorescent semiconductor nanocrystals.

Original languageEnglish (US)
Article number033
Pages (from-to)4483-4487
Number of pages5
JournalNanotechnology
Volume17
Issue number17
DOIs
StatePublished - Aug 1 2006

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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