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Simulation study on the translocation of polymer chains through nanopores
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10.1063/1.2757174
/content/aip/journal/jcp/127/4/10.1063/1.2757174
http://aip.metastore.ingenta.com/content/aip/journal/jcp/127/4/10.1063/1.2757174
View: Figures

Figures

Image of Scheme 1.
Scheme 1.

A chain with length is translocating through the pore on square lattice. There are segments outside the confinement, and the segment is trapped in the pore. Thick solid horizontal lines represent impenetrable walls, and thin dashed vertical lines represent periodic boundaries.

Image of FIG. 1.
FIG. 1.

Plot of free energy landscapes as a function of for two initial concentrations: (thick solid curve) and (thin solid curve). Simulation box size is , pore size is , and chain length is . These two concentrations represent chain numbers and 1, respectively.

Image of FIG. 2.
FIG. 2.

Semilogrithmic plot of vs concentration for systems with chain lengths , 20, 60, and 80. The smallest four ’s for are obtained from the simulations in the boxes with sizes of , , , and , whereas all other ’s are simulated in a box with size of with pore size of . The inset presents the dependence of on . The straight line has a slope of .

Image of FIG. 3.
FIG. 3.

Log-log plot of chemical potential difference vs the concentration for systems with chain lengths , 20, 60, and 80. The inset presents the log-log plot of vs at high regions. The solid line, as a guide to the eyes, has a slope of 1.31. Simulation box size is and pore size is .

Image of FIG. 4.
FIG. 4.

(a) Log-log plot of the barrier and chemical potential vs concentration for the chain of length . (b) Plot of the intersection concentration vs the chain length . Simulation box size is with pore size is .

Image of FIG. 5.
FIG. 5.

(a) Log-log plot of the relaxation time vs concentration for systems with chain lengths , 10, 20, 40, 60, and 80. (b) Log-log plot of the escaping time vs the concentration for systems with chain lengths , 20, 40, 60, and 80. Simulation box size is and pore size is .

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/content/aip/journal/jcp/127/4/10.1063/1.2757174
2007-07-31
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Simulation study on the translocation of polymer chains through nanopores
http://aip.metastore.ingenta.com/content/aip/journal/jcp/127/4/10.1063/1.2757174
10.1063/1.2757174
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