Hydrodynamical Effects on Nanoscopic Systems: the Case of Colloids And DNA (11th January 2007)
Dr. Simone Melchionna
(SOFT-INFM, Università degli studi di Roma La Sapienza)
We present a computational method to model nano-sized systems, such as colloidal suspensions and DNA in solution. As compared to existing literature our model includes i) a new treatment of solid-fluid boundary conditions ii) effective potentials specific to gel-forming fluids iii) fluctuating hydrodynamics with stochastic forcing of the kinetic modes.
On the colloidal side, some preliminary results regarding deep quenching scenarios and gel-formation are presented. Regarding DNA, we expound a numerical study of DNA translocation across nanopores mimicking devices for automatic sequencing.