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Dipole-interaction mediated hyperthermia heating mechanism of nanostructured Fe3O4 composites.
- Source :
-
Materials Letters . Aug2014, Vol. 129, p57-60. 4p. - Publication Year :
- 2014
-
Abstract
- Abstract: A correlation between the DC magnetization and hyperthermia heating rate in high frequency magnetic fields was established for two distinctively different magnetic nanoparticle (MNP) systems: (1) polystyrene (PS)/Fe3O4 based composites, consisting of 10nm diameter Fe3O4 nanoparticles embedded in the matrix of polystyrene (PS) spheres (~100nm), and (2) similar Fe3O4 nanoparticles coated with polyacrylic acid (PAA) and dispersed in water. Due to physical confinement of Fe3O4 nanoparticles in the former, the PS/Fe3O4 composite exhibited much lower magnetic hyperthermia heating compared to the latter. The reduced magnetic hyperthermia heating in the polystyrene (PS)/Fe3O4 based composites was found to be associated with strong dipolar interactions. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 129
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 96446140
- Full Text :
- https://doi.org/10.1016/j.matlet.2014.05.001