Magnetic Core/Shell Fe<sub>3</sub>O<sub>4</sub>/Au and Fe<sub>3</sub>O<sub>4</sub>/Au/Ag Nanoparticles with Tunable\nPlasmonic Properties
Zhichuan Xu (1272711)Yanglong Hou (1423069)Shouheng Sun (1306617)
Abstract
Core/shell structured Fe<sub>3</sub>O<sub>4</sub>/Au and Fe<sub>3</sub>O<sub>4</sub>/Au/Ag nanoparticles are synthesized by depositing Au and Ag on the Fe<sub>3</sub>O<sub>4</sub> 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.
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