Issue 20, 2022

Effect of albumin coating on the magnetic behavior of Mn ferrite nanoclusters

Abstract

The effect of clustering induced by albumin coating on the magnetic behaviour of ultra-small MnFe2O4 nanoparticles has been systematically investigated and compared with that in pure Mn ferrite nanoparticle dense assembly, using a mesoscopic scale approach and numerical simulations reproducing the experimental findings well. Our results provide evidence that in the coated system, the interplay between intra-particle and intra-cluster exchange interactions strongly affects the exchange bias and coercive field values, with the dipolar interactions playing a minor role. Instead, the albumin coating does not affect the thermal stability of the observed superspin glass phase, the freezing temperature being similar in the coated and uncoated systems.

Graphical abstract: Effect of albumin coating on the magnetic behavior of Mn ferrite nanoclusters

Supplementary files

Article information

Article type
Paper
Submitted
15 Jul 2022
Accepted
05 Sep 2022
First published
08 Sep 2022
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2022,4, 4366-4372

Effect of albumin coating on the magnetic behavior of Mn ferrite nanoclusters

M. Vasilakaki, N. Ntallis, D. Fiorani, D. Peddis and K. N. Trohidou, Nanoscale Adv., 2022, 4, 4366 DOI: 10.1039/D2NA00458E

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