Synthesis and Dispersion of Magnetic Nano-Particles by a Surfactant-Mediated Approach

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Magnetic nano-particles of around 20nm synthesized by poly-ethylene glycol (PEG) and sodium oleate mediated approach show well stability without sediment during 6 months. Upon treated through the modification procedure, magnetic nano-particles have a weakly physical bond with PEG, meanwhile a strong bond with sodium oleate. Naked magnetic nano-particles present positive charges on the surface, while turn to be negative when modified with sodium oleate, which suggest that the hydrophilic carboxyl on the surface of the nano-particles is outward. Magnetic property of the nano-particles changes according to the concentrations of reactants and surfactant.

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Periodical:

Key Engineering Materials (Volumes 330-332)

Main Theme:

Edited by:

Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu

Pages:

231-234

Citation:

P. Hou et al., "Synthesis and Dispersion of Magnetic Nano-Particles by a Surfactant-Mediated Approach", Key Engineering Materials, Vols. 330-332, pp. 231-234, 2007

Online since:

February 2007

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$38.00

[1] Ajay Kumar Guptaa, Mona Guptab. Biomaterials Vol. 26 (2005), p.3995.

[2] Chatterjee J, Haik Y, Chen C-J. J Magn Magn Mater Vol. 257(2003), p.113.

[3] Gupta AK, Wells S. IEEE Trans Nanobiosci Vol. 3 (2004), p.66.

[4] Dormann JL, Fiorani D. North- Holland Elsevier (1992), p.267.

[5] Gupta AK, Curtis ASG. Biomaterials Vol. 25 (2004), p.3029.

[6] Fong-Yu Cheng, Chia-Hao Su, Yu-Sheng Yang. Biomaterials Vol. 26 (2005), p.729.

[7] Jordan A, Scholz R, Maier-Hauff K. J Magn Magn Mater Vol. 225 (2001).

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