Star polymer translocation through Nano channel

Abstract

In this thesis we investigate star polymer translocation through nanochannel without external driving force. We used the two dimensional Monte Carlo simulation with Bond Fluctuating method. To inhabit the entropic barrier, we have carried out our system by placingpolymersleadingarmsinthemiddleofnanochannel. Thus,westudiedthestatic properties of star polymer for meansquareradiusofgyrationR2 g asafunctionofN. We found that the scaling relations of R2 g with polymer size N as R2 g N14661 which are in agreement with Flory prediction of real polymer chain. We also studied the dynamic properties of star polymers by investigating the escape time with chain length N, and N2467 which is in agreement with Rouse modelprediction that N1+2v , where v = 3 4 for 2D. In this work, we examine the interplay between the channel length L, width W andother parameters while simulating the translocation process.