Bacterial magnetosomes as MPI tracer

Bacterial magnetosomes as a new type of biogenic MPI tracer

For the first time, we present the investigation of the MPIperformance of magnetosomes isolated from the bacterium Magnetospirillum gryphiswaldense. Magnetic particle spectroscopy (MPS) studies as well as static M/H measurements are performed and compared with the current MPI gold-standard, Resovist^®. We show that the MPS signal exhibited by the magnetosomes is highly improved compared to Resovist, the hitherto gold-standard in MPI. This is made possible through the magnetosomes’ structural features such as high crystallinity and large crystal size, which result in large magnetic moments and negligible magnetic anisotropy.

More information available under 10.1039/C7NR01530E

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