The search for optimal nanoparticles for magnetic particle imaging (MPI) has been receiving much attention. Currently, Resovist® an iron oxide nanoparticle-based MR contrast agent is considered as the gold standard for MPS and MPI measurements. In this paper, we evaluate the initial MPS response of iron oxide-based nanoparticle systems with variation in core size and coating. In this context, we synthesized iron oxide nanoparticles with different core sizes (5 and 10 nm) by employing co-preciptiation method. Further, these iron cores were adsorptively coated with endogenous fluorophores (flavin analogues: FMN, FAD) to increase their stability and to enhance MR contrast. We have performed initial experiments on these particles in a magnetic particle spectrometer. Their spectrum of higher harmonics was obtained and found to fall off more rapidly than Resovist®. No difference in magnetic behavior was seen between particles with different coatings.
CITATION STYLE
Jayapaul, J., Truhn, D., Kiessling, F., Lüdtke-Buzug, K., & Buzug, T. M. (2012). Initial MPS response of adsorptively-coated fluorescent iron oxide nanoparticles. In Springer Proceedings in Physics (Vol. 140, pp. 47–52). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-3-642-24133-8_8
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