We investigated the magnetic and heating properties of ferrofluids made of magnetic nanoparticles having a nanoflower structure dispersed in water or polyethylene glycol. In both cases, the magnetic behavior of the fluids is ruled by the effect of magnetic interactions, and these show a higher intensity when the dispersing medium is water with respect to the polyethylene glycol case. Also the ferrofluids heating power is different, as the one made of water turns out to be more effective for what concerns the temperature increase. Both result are in favor of a modification of the nanoflower structure induced by the carrier fluid.

Ferrofluids made of magnetic nanoflowers: effect of the carrier fluid on magnetic and heating properties

SPIZZO, Federico;DEL BIANCO, Lucia;TAMISARI, Melissa;
2016

Abstract

We investigated the magnetic and heating properties of ferrofluids made of magnetic nanoparticles having a nanoflower structure dispersed in water or polyethylene glycol. In both cases, the magnetic behavior of the fluids is ruled by the effect of magnetic interactions, and these show a higher intensity when the dispersing medium is water with respect to the polyethylene glycol case. Also the ferrofluids heating power is different, as the one made of water turns out to be more effective for what concerns the temperature increase. Both result are in favor of a modification of the nanoflower structure induced by the carrier fluid.
Magnetic nanoparticles, magnetic fluid hyperthermia, thermal decomposition, energy barrier distribution.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11392/2368949
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact