Hybrid nanoparticles, composed of an iron oxide magnetic core embedded with gold fractal-grown hyper branches, have been synthesized by a seed-mediated growth approach. Magnetic and plasmonic properties have been described respectively through ferromagnetic resonance (FMR) and extinction spectra. According to the hydroxylamine amount, used as a surface catalysed reducing agent, the number of branches and the intensity of the fractal growth have been finely tuned and were observed through TEM microscopy. The magnetic core allowed their motion control via an external magnetic field. The plasmonic properties of these hyper-branched hybrid nanoparticles were recorded similar to those shown by the branched gold nanoparticles, but it is interesting to note that they showed an encouraging photothermal response.

Synthesis and Characterization of Hyper-Branched Nanoparticles with Magnetic and Plasmonic Properties

Candreva A.;Bartucci R.;Guzzi R.;Di Maio G.;Scarpelli F.;Aiello I.;Godbert N.;La Deda M.
2022-01-01

Abstract

Hybrid nanoparticles, composed of an iron oxide magnetic core embedded with gold fractal-grown hyper branches, have been synthesized by a seed-mediated growth approach. Magnetic and plasmonic properties have been described respectively through ferromagnetic resonance (FMR) and extinction spectra. According to the hydroxylamine amount, used as a surface catalysed reducing agent, the number of branches and the intensity of the fractal growth have been finely tuned and were observed through TEM microscopy. The magnetic core allowed their motion control via an external magnetic field. The plasmonic properties of these hyper-branched hybrid nanoparticles were recorded similar to those shown by the branched gold nanoparticles, but it is interesting to note that they showed an encouraging photothermal response.
2022
hybrid nanoparticles · hyper branches · magnetism · plasmonics · nanomaterials
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: https://hdl.handle.net/20.500.11770/339704
 Attenzione

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

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 7
  • ???jsp.display-item.citation.isi??? 9
social impact