Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 3, Issue 4, Pages 1049-1054Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am101188y
Keywords
superparamagnetic nanoparticles; polyelectrolytes; nanostructured wires; electrostatic complexation; desalting transition
Funding
- Rhodia (France)
- Agence Nationale de la Recherche [BLAN07-3_206866, ANR-09-NANO-P200-36]
- European Community [214137]
- Region Ile-de-France in the DIM
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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 run and lengths between 1 mu m and 0.5 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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