Flow Control by Smart Nanofluidic Channels: A Dissipative Particle Dynamics Simulation

• DOI: 10.1021/ma060628f
• Publication Date: 2006-07-13T10:01:14Z
• Authors: Jianhua Huang; Yongmei Wang; Mohamed Laradji
• Keywords: Dissipative particle dynamics

Dissipative particle dynamics (DPD) simulation is used to investigate solvent flow through a slit channel grafted with stimuli-responsive polymer brushes. The coated can regulate permeability when, in response stimuli, the brush undergoes conformational changes. effects of grafting density and chain length on control capability by smart have been studied. Results show that nearly 100-fold reduction permeation rate be achieved such channels proper choice parameters. Recommendations suitable parameters for optimum are given. interplay between brushes hydrodynamic also briefly revisited. In good regime, height low decreases increase pressure drop, but high less perturbed drop. poor even regardless density.