Monte Carlo Simulation of Static and Dynamic Properties of Linear Polymer in a Crowded Environment

In this paper, we investigate the static and dynamic properties of linear polymer in the presence of obstacles. A Monte Carlo (MC) simulation method in two dimensions with a bond fluctuation model (BFM) was used to achieve this goal. To overcome the entropic barrier, we put the middle monomer of the...

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Main Authors: Deme Tesfaye Umeta, Solomon Negash Asfaw, Solomon Hailemariam Didu, Chimdessa Gashu Feyisa, Dereje Kenea Feyisa
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Advances in Polymer Technology
Online Access:http://dx.doi.org/10.1155/2022/6707429
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author Deme Tesfaye Umeta
Solomon Negash Asfaw
Solomon Hailemariam Didu
Chimdessa Gashu Feyisa
Dereje Kenea Feyisa
author_facet Deme Tesfaye Umeta
Solomon Negash Asfaw
Solomon Hailemariam Didu
Chimdessa Gashu Feyisa
Dereje Kenea Feyisa
author_sort Deme Tesfaye Umeta
collection DOAJ
description In this paper, we investigate the static and dynamic properties of linear polymer in the presence of obstacles. A Monte Carlo (MC) simulation method in two dimensions with a bond fluctuation model (BFM) was used to achieve this goal. To overcome the entropic barrier, we put the middle monomer of the polymer in the middle of the pore, which is placed between ordered and disordered obstacles. We probed the static properties of the polymer by calculating the mean square of the radius of gyration and the mean square end-to-end distance of the polymer, and we found that the scaling exponents of both the mean square end-to-end distance R2 and the mean square radius of gyration Rg2 as a function of the polymer length N vary with the area fraction of crowding agents, ϕ. The dynamic properties have also been studied by exploring the translocation of the polymer. Our current research shows that the escape time τ increases as ϕ increases. Moreover, in the power-law relation of escape time τ as a function of polymer length N, the scaling exponent (α) changes with ϕ. Furthermore, the study has shown that the translocation of the polymer favors the disordered barriers.
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series Advances in Polymer Technology
spelling doaj-art-fa405165b48248f691774975ede65c3a2025-02-03T06:04:39ZengWileyAdvances in Polymer Technology1098-23292022-01-01202210.1155/2022/6707429Monte Carlo Simulation of Static and Dynamic Properties of Linear Polymer in a Crowded EnvironmentDeme Tesfaye Umeta0Solomon Negash Asfaw1Solomon Hailemariam Didu2Chimdessa Gashu Feyisa3Dereje Kenea Feyisa4Department of PhysicsDepartment of PhysicsDepartment of PhysicsDepartment of PhysicsDepartment of PhysicsIn this paper, we investigate the static and dynamic properties of linear polymer in the presence of obstacles. A Monte Carlo (MC) simulation method in two dimensions with a bond fluctuation model (BFM) was used to achieve this goal. To overcome the entropic barrier, we put the middle monomer of the polymer in the middle of the pore, which is placed between ordered and disordered obstacles. We probed the static properties of the polymer by calculating the mean square of the radius of gyration and the mean square end-to-end distance of the polymer, and we found that the scaling exponents of both the mean square end-to-end distance R2 and the mean square radius of gyration Rg2 as a function of the polymer length N vary with the area fraction of crowding agents, ϕ. The dynamic properties have also been studied by exploring the translocation of the polymer. Our current research shows that the escape time τ increases as ϕ increases. Moreover, in the power-law relation of escape time τ as a function of polymer length N, the scaling exponent (α) changes with ϕ. Furthermore, the study has shown that the translocation of the polymer favors the disordered barriers.http://dx.doi.org/10.1155/2022/6707429
spellingShingle Deme Tesfaye Umeta
Solomon Negash Asfaw
Solomon Hailemariam Didu
Chimdessa Gashu Feyisa
Dereje Kenea Feyisa
Monte Carlo Simulation of Static and Dynamic Properties of Linear Polymer in a Crowded Environment
Advances in Polymer Technology
title Monte Carlo Simulation of Static and Dynamic Properties of Linear Polymer in a Crowded Environment
title_full Monte Carlo Simulation of Static and Dynamic Properties of Linear Polymer in a Crowded Environment
title_fullStr Monte Carlo Simulation of Static and Dynamic Properties of Linear Polymer in a Crowded Environment
title_full_unstemmed Monte Carlo Simulation of Static and Dynamic Properties of Linear Polymer in a Crowded Environment
title_short Monte Carlo Simulation of Static and Dynamic Properties of Linear Polymer in a Crowded Environment
title_sort monte carlo simulation of static and dynamic properties of linear polymer in a crowded environment
url http://dx.doi.org/10.1155/2022/6707429
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