title: One-pot synthesis of AuPt alloyed nanoparticles by intense x-ray irradiation.
abstract: We synthesized AuPt alloyed nanoparticles in colloidal solution by a one-pot procedure based on synchrotron x-ray irradiation in the presence of PEG (polyethylene glycol). The exclusive presence of alloyed nanoparticles with fcc structure was confirmed by several different experiments including UV-vis spectroscopy, x-ray diffraction (XRD) and transmission electron microscopy (TEM). The composition of the AuPt alloyed nanoparticles can be varied in a continuous fashion by simply varying the feed ratios of Au and Pt precursors. The nanoparticles exhibited colloidal stability and biocompatibility, important for potential applications.
authors.affiliation: Institute of Physics, Academia Sinica, Nankang, Taipei, Taiwan. clwang@phys.sinica.edu.tw
authors.forename: Cheng-Liang
authors.initials: CL
authors.lastname: Wang
authors.forename: Bo-Jun
authors.initials: BJ
authors.lastname: Hsao
authors.forename: Sheng-Feng
authors.initials: SF
authors.lastname: Lai
authors.forename: Wen-Chang
authors.initials: WC
authors.lastname: Chen
authors.forename: Hsiang-Hsin
authors.initials: HH
authors.lastname: Chen
authors.forename: Yi-Yun
authors.initials: YY
authors.lastname: Chen
authors.forename: Chia-Chi
authors.initials: CC
authors.lastname: Chien
authors.forename: Xiaoqing
authors.initials: X
authors.lastname: Cai
authors.forename: Ivan M
authors.initials: IM
authors.lastname: Kempson
authors.forename: Y
authors.initials: Y
authors.lastname: Hwu
authors.forename: G
authors.initials: G
authors.lastname: Margaritondo