Artículo
Field-induced flocculation on biocompatible magnetic colloids
Fecha de publicación:
07/2008
Editorial:
Elsevier Science
Revista:
Journal of Magnetism and Magnetic Materials
ISSN:
0304-8853
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Field dependence of the optical transmission of a polyaspartic-coated magnetite magnetic fluid dispersed in water was investigated at different particle volume fractions. The particle size distribution of the sample was obtained from the analysis of the transmission electron microscopy pictures. The transmissivity decreased increasing the magnetic field until a critical field is achieved. Above this value, the opposite effect was observed. Indeed, the critical field decreases the higher the particle volume fraction being in qualitative similarity with phase separation behavior. However, the origin of the effect is attributed to the precipitation of field-induced nanoparticle chains. These phenomena might be useful on obtaining one-dimensional nanoparticle arrangements.
Palabras clave:
Magnetic Liquid
,
Fine Particle System
,
Magneto-Optical Effect
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Articulos(INTECIN)
Articulos de INST.D/TEC.Y CS.DE LA ING."HILARIO FERNANDEZ LONG"
Articulos de INST.D/TEC.Y CS.DE LA ING."HILARIO FERNANDEZ LONG"
Citación
Cintra, E. R.; Santos Junior, J. L.; Socolovsky, Leandro Martin; Buske, N.; Bakuzis, A. F.; Field-induced flocculation on biocompatible magnetic colloids; Elsevier Science; Journal of Magnetism and Magnetic Materials; 320; 14; 7-2008; 351-353
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