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Flow Injection of Polymers Into Nanopores

Tuesday, November 10, 2009: 5:00 PM
Pres. Boardroom A (Gaylord Opryland Hotel)

O. Berk Usta, Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA
Anton Markejestein, Laboratory for Aero & Hydrodynamics, Delft University of Technology, Delft, Netherlands
Issam Ali, Department of Physics, Sultan Qaboos University, Al-Khodh
Anna C. Balazs, Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA
Julia Yeomans, Theoretical Physics, University of Oxford, Oxford, United Kingdom

We use a mesoscale simulation to measure the strength of the velocity flux needed to push a polymer into a narrow channel. We find excellent agreement with the prediction by Sakaue et al [1], based on a de-Gennes blob model of the polymer, that the critical flux for translocation depends linearly on the temperature, but is independent of the length of the polymer chain or the width of the channel.

[1] T. Sakaue, E. Raphašel, P.G. de Gennes and F. Brochard-Wyart, Europhys. Lett. 72 83 (2005)

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See more of this Session: Complex-Fluid and Bio-Fluid Dynamics II
See more of this Group/Topical: Engineering Sciences and Fundamentals