Study of Solid Wall–Liquid Interaction on Pressure-Driven Liquid Transport Through a Nanopore in a Membrane
Abstract:The effect of pore wall–liquid interaction on the liquid transport through a nanopore in a membrane was studied by an improved pressure-driven non-equilibrium molecular dynamics (NEMD) method. The NEMD results showed that pressures in the reservoirs were constant and were equal to the pressures externally exerted on the self-adjusting plates that drove the flow; pressures in the nanopore decreased monotonically in the stream-wise direction when the solid wall–liquid had weak or neutral interaction, but exhibited a different distribution pattern in the case of the solid wall–liquid exhibiting strong attractive interaction. The transport ability of the nanopore depended significantly on the pore wall–liquid interaction.
Document Type: Research Article
Publication date: 2009-02-01
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