Controlled Growth of Se Nanoparticles on Ag Nanoparticles in Different Ratios


  • This work was supported by the U.S. Department of Energy (DE–FG–02–01ER45935). X.G. thanks Dr. Tsiola Areti at the Core Facilities for Imaging, Cell, and Molecular Biology in the Biology Department at Queens College—CUNY, for the use of the transmission electron microscope. We also thank Dr. William L'Amoreaux at the College of Staten Island for assistance with the EDX.


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The integration of multiple nano- particles (NPs) with different physical properties into a multifunctional hybrid NP is a challenge. Here, a new wet chemical synthesis is used to generate hybrid NPs by the heterogeneous growth of one NP onto another equivalent-sized NP (see Figure). The hybrid NPs consist of Ag-NPs and Se-NPs in controlled nanoparticle ratios of 1:1, 1:2, and 1:3, respectively. The Se-NPs were grown on the Ag-NP, and the number of Se-NPs was controlled by the initial concentration of Se ions.