Thermodynamic behavior of two-dimensional vesicles

A Monte Carlo simulation of two-dimensional vesicles, modeled as closed, planar, self-avoiding tethered chains is presented. The effects of an internal pressure increment, , and a bending rigidity, , on the sizes and shapes is studied. For =0 scaling behavior is found, which, in the asymptotic deflated regime, 0 various nontrivial equilibrium shapes or cytotypes appear and dynamical behavior reminiscent of nonlinear flickering in real vesicles is found.