Magnetic Core/Shell Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles with Tunable Plasmonic Properties

Zhichuan J. Xu; Yanglong Hou; Shouheng Sun

doi:10.1021/ja073057v

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Magnetic Core/Shell Fe₃O₄/Au and Fe₃O₄/Au/Ag Nanoparticles with Tunable Plasmonic Properties

Zhichuan J. Xu Yanglong Hou Shouheng Sun

Year: 2007 Journal: Journal of the American Chemical Society Vol: 129 (28)Pages: 8698-8699 Publisher: American Chemical Society

DOI: 10.1021/ja073057v

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Abstract

Core/shell structured Fe3O4/Au and Fe3O4/Au/Ag nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 nanoparticle surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical nanoparticles should have great potentials for nanoparticle-based diagnostic and therapeutic applications.

Keywords:

Nanoparticle Plasmon Shell (structure) Chemistry Core (optical fiber) Aqueous solution Nanotechnology Optoelectronics Optics Physical chemistry Materials science Composite material Physics

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Gold and Silver Nanoparticles Synthesis and Applications

Physical Sciences → Materials Science → Electronic, Optical and Magnetic Materials

Nanoparticle-Based Drug Delivery

Physical Sciences → Materials Science → Biomaterials

Characterization and Applications of Magnetic Nanoparticles

Physical Sciences → Engineering → Biomedical Engineering

Magnetic Core/Shell Fe₃O₄/Au and Fe₃O₄/Au/Ag Nanoparticles with Tunable Plasmonic Properties

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