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Study of Solid Wall–Liquid Interaction on Pressure-Driven Liquid Transport Through a Nanopore in a Membrane

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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.

Keywords: MEMBRANE; MOLECULAR DYNAMICS SIMULATION; NANOPORE; PRESSURE-DRIVEN FLOW; SOLID WALL-LIQUID INTERACTION

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2009.C026

Publication date: 2009-02-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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