volume 95(7), page 076001 (12 August 2005):

"DPD Simulations of Polymer Chains: Scaling Laws and Shearing Response Compared to DNA Experiments"

V. Symeonidis, G. E. Karniadakis and B. Caswell

Abstract: Dissipative Particle Dynamics (DPD) simulations of several bead-spring representations of polymer chains in dilute solution are used to demonstrate the correct static scaling laws for the radius of gyration. Shear flow results for the wormlike chain (WLC) simulating single DNA molecules compare well with average extensions from experiments, irrespective of the number of beads. However, coarse-graining with more than a few beads degrades the agreement of the autocorrelation of the extension.