A scanner for imaging magnetic particles in planar samples was developed using the planar frequency mixing magnetic detection technique. The magnetic intermodulation product response from the nonlinear nonhysteretic magnetization of the particles is recorded upon a two-frequency excitation. It can be used to take 2D images of thin biological samples.
Hong, H., Lim, E., Jeong, J., Chang, J., Shin, S., Krause, H. Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples. J. Vis. Exp. (112), e53869, doi:10.3791/53869 (2016).