One step grafting of monomethoxy poly(ethylene glycol) during synthesis of maghemite nanoparticles in aqueous medium

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 ma...

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Published inColloids and surfaces. A, Physicochemical and engineering aspects Vol. 330; no. 1; pp. 1 - 7
Main Authors Hu, L., Hach, D., Chaumont, D., Brachais, C.-H., Couvercelle, J.-P.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 20.11.2008
Elsevier
Subjects
Aqueous medium
Chemical Sciences
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Grafting
Hybrids
Maghemite
Monomethoxy poly(ethylene glycol)
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Polymers
Surface physical chemistry
Hybrids
Aqueous medium
Grafting
Monomethoxy poly(ethylene glycol)
Maghemite
Correlation
Nanoparticle
Thermogravimetry
X ray
Spectrometer
X ray diffraction
Photon
Ethylene oxide polymer
Infrared spectrometry
Transmission electron microscopy
Synthesis
Spinel
Spinels
Electrokinetic potential
Photoelectron spectrometry
Raman spectrometry
Structure
hybrids
maghemite
monomethoxy poly(ethylene glycol)
aqueous medium
grafting
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Summary: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.
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2008.07.044