Quantification of Magnetic Nanoparticle Uptake in Cells by Temperature Dependent Magnetorelaxometry

Typically, magnetic iron oxide nanoparticles (MNP) with core diameter in the range of about 16 nm to 22 nm are accessible by magnetorelaxometric (MRX) measurements at room temperature whereas the relaxation of smaller particles is too fast to be observed with a conventional MRX setup. In order to extend the size limitation towards smaller particles, we suggest applying temperature dependent magnet...