Small zinc doped iron oxide tracers for magnetic particle imaging

H. T. Kim Duong, Ashkan Abdibastami, Lucy Gloag, Andre Bongers, Saeed Shanehsazzadeh, Melanie Nelson, Aidan Cousins, Narges Bayat, Hannah Mccalmont, Richard B. Lock, Scott Sulway, Joanna Biazick, J. Justin Gooding, Richard D. Tilley

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Magnetic particle imaging (MPI) has garnered significant attention in biomedical imaging research due to its excellent signal intensity that is generated directly from superparamagnetic iron oxide nanoparticles (SPIONs). Small nanoparticle tracers with high saturation magnetisation are crucial for MPI as they can prolong circulation, crossing the blood brain barrier and enhance cellular uptake. In this work, we demonstrate small zinc doped iron oxide nanoparticles (Zn-IONPs) are excellent MPI tracers. Our Zn-IONPs exhibited up to 37 % and 64% enhancement in saturation magnetisation (Msat) value and MPI signal intensity respectively compared to Fe3O4 of the same size. As a result, the polymer encapsulated Zn-IONPs achieved up to 2.7-fold enhancement in MPI signal intensity compared to VivoTrax. Furthermore, these polymer encapsulated NPs were also determined to be non-toxic hence making these Zn-IONPs ideal for many biomedical applications in MPI where small size is critical to prolong circulation time and crossing the blood brain barrier.

Original languageEnglish
Article number171304
Number of pages7
JournalJournal of Magnetism and Magnetic Materials
Volume587
Early online dateSept 2023
DOIs
Publication statusPublished - 1 Dec 2023
Externally publishedYes

Fingerprint

Dive into the research topics of 'Small zinc doped iron oxide tracers for magnetic particle imaging'. Together they form a unique fingerprint.

Cite this