Plasmonic-magnetic dual-functional graded nanoparticles with oxide shell passivation designed for bioapplications

Ryoichi Kitaura, Mari Takahashi, Priyank Mohan, Koichi Higashimine, Derrick Mott, Shinya Maenosono

Research output: Contribution to journalArticlepeer-review

Abstract

Plasmonic-magnetic dual-functional nanoparticles consisting of a graded structure with plasmonic silver (Ag) and ferromagnetic iron-cobalt-platinum alloy (FeCoPt) components mixed at the atomic level with a composition gradient were chemically synthesized. The surfaces of the nanoparticles were uniformly covered with iron oxide (Fe x O y ). The resulting nanoparticles possessed a graded-core/oxide-shell structure and unique physical properties. In addition, the surfaces of the nanoparticles were biotinylated to enhance their versatility for use in various bioapplications such as bioimaging, biosensing, immunodiagnosis, and hyperthermia.

Original languageEnglish
Article number105001
JournalApplied Physics Express
Volume11
Issue number10
DOIs
Publication statusPublished - 2018 Oct 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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