Pubblicazioni

Autori:

Basagni, Andrea; Torresan, Veronica; Marzola, Pasquina; Fernàndez van Raap, Marcela B; Nodari, Luca; Amendola, Vincenzo

Titolo:

Structural evolution under physical and chemical stimuli of metastable Au-Fe nanoalloys obtained by laser ablation in liquid

Anno:

2023

Tipologia prodotto:

Articolo in Rivista

Tipologia ANVUR:

Articolo su rivista

Lingua:

Inglese

Formato:

A Stampa

Referee:

Sì

Nome rivista:

FARADAY DISCUSSIONS

ISSN Rivista:

1364-5498

N° Volume:

242

Intervallo pagine:

286-300

Parole chiave:

Atmospheric pressure; Dynamics; Gold alloys; Iron alloys; Laser ablation; Liquids; Magnetic resonance imaging; Medical nanotechnology; Nanoparticles

Breve descrizione dei contenuti:

Metastable alloy nanoparticles are investigated for their variety of appealing properties exploitable for photonics, magnetism, catalysis and nanobiotechnology. Notably, nanophases out of thermodynamic equilibrium feature a complex "ultrastructure" leading to a dynamic evolution of composition and atomic arrangement in response to physical-chemical stimuli. In this manuscript, metastable Au-Fe alloy nanoparticles were produced by laser ablation in liquid, an emerging versatile synthetic approach for freezing multielement nanosystems in non-equilibrium conditions. The Au-Fe nanoalloys were characterized through electron microscopy, elemental analysis, X-ray diffraction and Mossbauer spectroscopy. The dynamics of the structure of the Au-Fe system was tracked at high temperature under vacuum and atmospheric conditions, evidencing the intrinsic transformative nature of the metastable nanoalloy produced by laser ablation in liquid. This dynamic structure is relevant to possible application in several fields, from photocatalysis to nanomedicine, as demonstrated through an experiment of magnetic resonance imaging in biological fluids.

Pagina Web:

https://doi.org/10.1039/D2FD00087C

Id prodotto:

130296

Handle IRIS:

11562/1079607

ultima modifica:

23 febbraio 2023

Citazione bibliografica:

Basagni, Andrea; Torresan, Veronica; Marzola, Pasquina; Fernàndez van Raap, Marcela B; Nodari, Luca; Amendola, Vincenzo, Structural evolution under physical and chemical stimuli of metastable Au-Fe nanoalloys obtained by laser ablation in liquid «FARADAY DISCUSSIONS» , vol. 242 , 2023 , pp. 286-300

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