Abstract The electrostatic layer-by-layer technique has been exploited as an useful strategy for fabrication of nanostructured thin
films, in which specific properties can be controlled at the molecular level. Ferrofluids consist of a colloidal suspension
of magnetic grains (with only a few nanometers of diameter) with present interesting physical properties and applications,
ranging from telecommunication to drug delivery systems. In this article, we developed a new strategy to manipulate ferrofluids
upon their immobilization in nanostructured layered films in conjunction with conventional polyelectrolytes using the layer-by-layer
technique. We investigated the morphological, optical, and magnetic properties of the immobilized ferrofluid as a function
of number of bilayers presented in the films. Ferrofluid/polyelectrolyte multilayers homogeneously covered the substrates
surface, and the magnetic and optical properties of films exhibited a linear dependence on the number of bilayers adsorbed.
films, in which specific properties can be controlled at the molecular level. Ferrofluids consist of a colloidal suspension
of magnetic grains (with only a few nanometers of diameter) with present interesting physical properties and applications,
ranging from telecommunication to drug delivery systems. In this article, we developed a new strategy to manipulate ferrofluids
upon their immobilization in nanostructured layered films in conjunction with conventional polyelectrolytes using the layer-by-layer
technique. We investigated the morphological, optical, and magnetic properties of the immobilized ferrofluid as a function
of number of bilayers presented in the films. Ferrofluid/polyelectrolyte multilayers homogeneously covered the substrates
surface, and the magnetic and optical properties of films exhibited a linear dependence on the number of bilayers adsorbed.
- Content Type Journal Article
- Category Research Paper
- DOI 10.1007/s11051-010-9855-z
- Authors
- A. Pereira, Universidade Federal de Santa Catarina Departamento de Física Florianópolis SC 88040-900 Brazil
- S. Alves, Universidade Federal de São Paulo Departamento de Ciências Exatas e da Terra de Física Diadema SP 09972-270 Brazil
- M. Casanova, Universidade de São Paulo Instituto de Física de São Carlos P.O. Box 369 São Carlos SP 13560-970 Brazil
- V. Zucolotto, Universidade de São Paulo Instituto de Física de São Carlos P.O. Box 369 São Carlos SP 13560-970 Brazil
- I. H. Bechtold, Universidade Federal de Santa Catarina Departamento de Física Florianópolis SC 88040-900 Brazil
- Journal Journal of Nanoparticle Research
- Online ISSN 1572-896X
- Print ISSN 1388-0764
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