Driven Translocation of a Star Polymer from a Confined Cylindrical Cavity with a Finite Volume

We performed a coarse-grained Langevin Dynamics simulation to investigate the translocation process of homogeneous star polymers through a nanopore in the case where the polymer is initially confined inside a cylindrical cavity. The translocation time is investigated in terms of the total number of beads for three- and four-armed star polymers. Moreover, the geometry of the cavity, that is, its volume and its aspect ratio has an obvious impact on the polymer conformation as it crosses the nanopore, and hence a significant influence on the translocation times distribution. That is why polymer translocation times were also computed by varying the volume and the aspect ratio of the cylindrical cavity.