Open AccessFormation of Au/Pd Alloy Nanoparticles on TMV
Author(s) -
JungSun Lim,
Seung Min Kim,
SangYup Lee,
Eric A. Stach,
James N. Culver,
Michael T. Harris
Publication year - 2010
Publication title -
journal of nanomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 66
eISSN - 1687-4129
pISSN - 1687-4110
DOI - 10.1155/2010/620505
Subject(s) - alloy , materials science , selected area diffraction , transmission electron microscopy , nanoparticle , palladium , metal , chemical engineering , surface plasmon resonance , energy dispersive x ray spectroscopy , colloidal gold , electron diffraction , spectroscopy , metallurgy , nuclear chemistry , scanning electron microscope , nanotechnology , diffraction , catalysis , composite material , chemistry , organic chemistry , optics , physics , quantum mechanics , engineering
A gold-palladium (AuPd) solid solution alloy was successfully deposited on the genetically engineered tobacco mosaic virus (TMV1Cys) by the biosorption of Au(III) and Pd(II) precursors and the reduction of the Au(III) and Pd(II) to their respective metals or metal alloy. The resulting morphologies of alloy nanoparticles deposited on the TMV1Cys were observed with transmission electron microscopy (TEM), and the AuPd alloy formation was supported with surface plasmon resonance (SPR) and selected area electron diffraction (SAED). In addition, selected alloy nanoparticles on the TMV1Cys were analyzed further with electron energy loss spectroscopy (EELS) to confirm the presence of gold and palladium. Our result implies that biotemplated metal mineralization is a potentially useful methodology to prepare alloy nanoparticles
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