Magnetically driven preparation of 1-D nano-necklaces capable of MRI relaxation enhancement

Aaron M King; Teresa Insinna; Connor J R Wells; Isabel A Raby; Yurii K Gun'ko; Gemma-Louise Davies

doi:10.1039/d3na00137g

Magnetically driven preparation of 1-D nano-necklaces capable of MRI relaxation enhancement

Nanoscale Adv. 2023 May 24;5(12):3209-3213. doi: 10.1039/d3na00137g. eCollection 2023 Jun 13.

Authors

Aaron M King¹, Teresa Insinna¹, Connor J R Wells¹, Isabel A Raby¹, Yurii K Gun'ko², Gemma-Louise Davies¹

Affiliations

¹ Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK.
² School of Chemistry, Trinity College Dublin Dublin 2 Ireland gemma-louise.davies@ucl.ac.uk.

Abstract

We report a novel magnetically-facilitated approach to produce 1-D 'nano-necklace' arrays composed of 0-D magnetic nanoparticles, which are assembled and coated with an oxide layer to produce semi-flexible core@shell type structures. These 'nano-necklaces' demonstrate good MRI relaxation properties despite their coating and permanent alignment, with low field enhancement due to structural and magnetocrystalline anisotropy.