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Optical Properties and Magnetic Manipulation of Bimaterial Nanopyramids

Authors


  • This work was supported by the Center of Cancer Nanotechnology Excellence (CCNE) initiative of the National Institutes of Health's National Cancer Institute under Award Number U54CA119341. This work made use of the NUANCE Center facilities, which are supported by NSF-MRSEC, NSF-NSEC and the Keck Foundation. T.W.O. is a DuPont Young Professor, an Alfred P. Sloan Research Fellow, a Cottrell Scholar of Research Corporation, and a David and Lucile Packard Fellow.

Abstract

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Multifunctional Nanoparticles: A facile approach to create multi-functional nanopyramids has been demonstrated. The surfaces of bi-material Au/Ni nanopyramids were differentially modified with chemical and biological moieties. Dye-labeled nanopyramids were used as probes for dual-mode optical imaging (scattering and fluorescence). Under a magnetic field, these multi-functional Au/Ni NPs also assembled into 1D chains that exhibited polarization- dependent optical properties.

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