کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
596556 | 879524 | 2008 | 7 صفحه PDF | دانلود رایگان |
Grafting of silanated monomethoxy poly(ethylene glycol) (m-PEG) onto maghemite nanoparticles surface in aqueous medium through one step procedure was investigated. The major characteristic of this work is that the grafting of m-PEG was produced during the synthesis of maghemite nanoparticles. The maghemite nanoparticles were characterized by photon correlation spectroscopy (PCS), zeta potential measurement, X-ray diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM), Fourier transform infrared spectrometer (FTIR), and X-ray photoelectron spectroscopy (XPS). The spinel structure of maghemite nanoparticles was verified and successful grafting of m-PEG was evidenced. Thermogravimetric analysis (TGA) attested the presence of 15% (w/w) of m-PEG around the maghemite nanoparticles.
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 330, Issue 1, 20 November 2008, Pages 1–7