  Inverse Patchy Colloids (IPCs) differ from conventional patchy particles
because their patches repel (rather than attract) each other and attract
(rather than repel) the part of the colloidal surface that is free of patches.
These particular features occur, .e.g., in heterogeneously charged colloidal
systems. Here we consider overall neutral IPCs carrying two, relatively small,
polar patches. Previous studies of the same model under planar confinement have
evidenced the formation of branched, disordered aggregates composed of
ring-like structures. We investigate here the bulk behavior of the system via
molecular dynamics simulations, focusing on both the structure and the dynamics
of the fluid phase in a wide region of the phase diagram. Additionally, the
simulation results for the static observables are compared to the Associative
Percus Yevick solution of an integral equation approach based on the
multi-density Ornstein-Zernike theory. A good agreement between theoretical and
numerical quantities is observed even in the region of the phase diagram where
the slowing down of the dynamics occurs.

Soft Condensed Matter