Abstract
We synthesized AuPt alloyed nanoparticles in colloidal solution by a one-pot procedurebased on synchrotron x-ray irradiation in the presence of PEG (polyethylene glycol). Theexclusive presence of alloyed nanoparticles with fcc structure was confirmed by severaldifferent experiments including UV–vis spectroscopy, x-ray diffraction (XRD) andtransmission electron microscopy (TEM). The composition of the AuPt alloyednanoparticles can be varied in a continuous fashion by simply varying the feed ratios of Auand Pt precursors. The nanoparticles exhibited colloidal stability and biocompatibility,important for potential applications.
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