Magnetic nanowires generated via the waterborne desalting transition pathway

Details Magnetic nanowires generated via the waterborne desalting transition pathway Magnetic nanowires generated via the waterborne desalting transition pathway

2011-08-10

arxiv.org/abs/1108.2082v1

ACS Appl. Mater. Interfaces, 2011, 3 (4), pp 1049--1054

Physics

Condensed Matter

Materials Science

11 pages, 4 figures

Scientific paper

10.1021/am101188y

We report a simple and versatile waterborne synthesis of magnetic nanowires following the innovative concept of electrostatic "desalting transition". Highly persistent superparamagnetic nanowires are generated from the controlled assembly of oppositely charged nanoparticles and commercially available polyelectrolytes. The wires have diameters around 200 nm and lengths comprised between 1 {\mu}m and 1/2 mm, with either positive or negative charges on their surface. Beyond, we show that this soft-chemistry assembly approach is a general phenomenon independent of the feature of the macromolecular building blocks, opening significant perspectives for the design of multifunctional materials.

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