M(H) dependence and size distribution of SPIONs measured by atomic magnetometry
Simone Colombo, Victor Lebedev, Zoran D. Grujic, Vladimir Dolgovskiy, and Antoine Weis
TL;DR
This paper presents a method using atomic magnetometry to accurately measure the magnetic response of SPION suspensions, enabling precise determination of iron content and particle size distribution.
Contribution
It introduces a novel application of atomic magnetometry for detailed characterization of SPIONs, providing a non-invasive and precise measurement technique.
Findings
Accurate measurement of iron mass content mFe
Determination of particle size distribution
Enhanced characterization of SPION suspensions
Abstract
We demonstrate that the quasistatic recording of the magnetic excitation function M(H) of superparamagnetic iron oxide magnetic nanoparticle (SPION) suspensions by an atomic magnetometer allows a precise determination of the sample's iron mass content mFe and the particle size distribution.
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