| Issue |
EPL
Volume 118, Number 2, April 2017
|
|
|---|---|---|
| Article Number | 28001 | |
| Number of page(s) | 6 | |
| Section | Interdisciplinary Physics and Related Areas of Science and Technology | |
| DOI | https://doi.org/10.1209/0295-5075/118/28001 | |
| Published online | 20 June 2017 | |
Statistical mechanics of a polymer chain attached to the interface of a cone-shaped channel
1 Department of Physics, Banaras Hindu University - Varanasi 221005, India
2 Department of Physics, IIT(BHU) - Varanasi 221005, India
Received: 6 December 2016
Accepted: 22 May 2017
A polymer chain confined in nano-scale geometry has been used to investigate the underlying mechanism of Nuclear Pore Complex (NPC), where transport of cargoes is directional. It was shown here that depending on the solvent quality (good or poor) across the channel, a polymer chain can be either inside or outside the channel or both. Exact results based on the short chain revealed that a slight variation in the solvent quality can drag the polymer chain inside the pore and vice versa similarly to one seen in NPC. Furthermore, we also report the absence of crystalline (highly dense) state when the pore size is less than a certain value, which may have potential application in packaging of DNA inside the preformed viral proheads.
PACS: 87.15.A- – Theory, modeling, and computer simulation / 87.10.Hk – Lattice models / 05.70.Fh – Phase transitions: general studies
© EPLA, 2017
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