Polyelectrolyte stabilized nanowires from Fe3O4 nanoparticles via magnetic field induced self-assembly

被引:112
作者
Sheparovych, R
Sahoo, Y
Motornov, M
Wang, SM
Luo, H
Prasad, PN
Sokolov, I
Minko, S
机构
[1] Clarkson Univ, Dept Chem, Potsdam, NY 13699 USA
[2] Clarkson Univ, Dept Phys, Potsdam, NY 13699 USA
[3] SUNY Buffalo, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USA
[4] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA
关键词
D O I
10.1021/cm051274u
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
An experiment that uses magnetic field for the fabrication of polyelectrolyte stabilized nanowires from Fe 3O 4 nanoparticles, is descrobed. Self-assembled block copolymer morphologies were used to prepare superlattices of nanoparticles, and single polyelectrolyte molecules were templated with metal nanoparticles. Reversible formation of ID structures for paramagnetic particles induced by magnetic field has been used to tune properties of magnetorheological fluids. Magnetization of hysteresis of the aligned nanowires was measured, and was found that the coercive force fields show differences when the magnetic field during the measurement was parallel and perpendicular to the patterns.
引用
收藏
页码:591 / 593
页数:3
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