International Journal on Magnetic Particle Imaging IJMPI
Vol. 9 No. 1 Suppl 1 (2023): Int J Mag Part Imag

Proceedings Articles

Insight COMPASS – the physics behind

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Johanna Günther (Universität Würzburg Experimentelle Physik 5), Thomas Kampf , Martin Rückert , Bernhard Friedrich , Rainer Tietze , Stefan Lyer , Thomas Hennig , Lars Dölken , Christoph Alexiou , Volker Behr , Patrick Vogel 


Critical Offset Magnetic PArticle SpectroScopy (COMPASS) is a new method that allows to detect slight changes in the mobility of particles in a solution very sensitively. While first applications in detecting biomarkers such as SARS CoV 2 antibodies show very promising results, the full potential of the technique and the underlying physical effects were yet only considered superficially. Here we present the first results of a detailed study of the behavior of the particle signal under variations of relevant system parameters with a focus on particle size, viscosity and temperature of the solution to win more information about the behavior of the effect and find new interesting application possibilities.

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