  We address the forces exerted by the electromagnetic field emitted by a
planar uctuating source on dielectric particles that have arose much interest
because of their recently shown magnetodielectric behavior. In this context, we
analyze as a particular case the modification of the Casimir and Van der Waals
forces. We study the effect of the source coherence length as well as the
interplay between the force from the radiated field and that from the electric
and magnetic dipoles induced on the particle. This allows a control of these
interactions as well as of the weight and interference effects between the
fields from both kinds of induced dipoles, in particular when large changes in
their differential scattering cross section occur due to Kerker minimum forward
or zero backward conditions; thus opening new paths to nanoparticle ensembling
and manipulation. The influence of surface waves of the source is also studied.
