Synthesis and Magnetic Properties of Fe3O4 Nanoparticles Coated with Biocompatible Double Hydrophilic Block Copolymer

被引：14
作者：
Basina, G. [2 ]
Mountrichas, G. [1 ]
Devlin, E. [2 ]
Boukos, N. [2 ]
Niarchos, D. [2 ]
Petridis, D. [2 ]
Pispas, S. [1 ]
Tzitzios, V. [2 ]
机构：
[1] Natl Hellen Res Fdn, Inst Theoret & Phys Chem, GR-11635 Athens, Greece
[2] NCSR Demokritos Agia Paraskevi, Inst Mat Sci, Athens 15310, Greece
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 08期
关键词：
Magnetite; Nanoparticles; Ferrofluids; Double Hydrophilic Block Copolymer; FTIR SPECTRAL CHARACTERIZATION; IRON-OXIDE NANOPARTICLES; THIN-FILM COATINGS; OLEIC-ACID; SIZE; FERROFLUIDS; DELIVERY; ALCOHOL; GLASSES; MEDIA;
D O I：
10.1166/jnn.2009.1275
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Fe3O4 nanoparticles coated with double hydrophilic biocompatible poly(sodium(2-sulfamate-3-carboxyl ate) isoprene)-b-poly (ethylene oxide) block copolymer were prepared by a one step precipitation method. The magnetic nanoparticles have 15 nm mean diameter (TEM), 68 nm hydrodynamic diameter, -30.10 mV zeta-potential and form very stable dispersion in aqueous media. Structural characterization using powder XRD and Mossbauer spectroscopy establish the magnetite phase, while thermogravimetric analysis and FT-IR spectroscopy confirm the presence of the block copolymer on the nanoparticles surface. The magnetic properties were determined using a vibrating sample magnetometer (VSM) at room temperature and reveal superparamagnetic behavior while the composite materials shows high saturation magnetization up to 67.7 emu/gr.
引用
收藏
页码：4753 / 4759
页数：7
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