Polymer Translocation Through A Nanopore

In this paper we investigate Monte Carlo simulation of polymer translocation throughrna nanopore. To this end we used the bond rnuctuation method (BFM) to study therntranslocation process of a polymer chain of length N in two dimensions, in the absencernof external force on the polymer (i.e. unbiased translocation). To overcome the entropicrnbarrier we consider a polymer which is initially placed in the middle of the pore andrnstudy the average escape time needed for the polymer to completely exit the pore onrneither side of the end. Numerically we nd that the escape time scales with the chainrnlength N as N1+2 , where is the Flory exponent as far as the pore is small enough.rnAnd this scaling agree with the translocation time of a polymer which passes through arnnanopore in one direction only. In this work, we examine the interplay between the porernlength L, width W and other parameters while simulating the translocation process. Wernalso study the statistical properties of a polymer chain by calculating the average-squaredrnend-to-end distance R2 and the average-squared radius of gyration R2rng of a chain polymer;rnand the di usion constant D for the dynamical properties

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