| Title: | Sequence disorder-induced first order phase transition in confined polyelectrolytes |
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| Authors: | ID Stepanyan, V. (Author)
ID Badasyan, Artem (Author)
ID Morozov, V. (Author)
ID Mamasakhlisov, Yevgeni S. (Author)
ID Podgornik, Rudolf (Author) |
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| Files: |  https://pubs.aip.org/aip/jcp/article-pdf/doi/10.1063/5.0228162/20188245/134906_1_5.0228162.pdf
https://pubs.aip.org/aip/jcp/article-pdf/doi/10.1063/5.0228162/20188245/134906_1_5.0228162.pdf
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| Language: | English |
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| Work type: | Unknown |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | We consider a statistical mechanical model of a generic flexible polyelectrolyte, comprised of identically charged monomers with long-range electrostatic interactions and short-range interactions quantified by a disorder field along the polymer contour sequence, which is randomly quenched. The free energy and the monomer density profile of the system for no electrolyte screening are calculated in the case of a system composed of two infinite planar bounding surfaces with an intervening oppositely charged polyelectrolyte chain. We show that the effect of the contour sequence disorder, mediated by short-range interactions, leads to an enhanced localization of the polyelectrolyte chain and a first order phase transition at a critical value of the inter-surface spacing. This phase transition results in an abrupt change of the pressure from negative to positive values, effectively eliminating polyelectrolyte mediated bridging attraction. |
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| Keywords: | polyelectrolyte, Anderson localization, Poisson-Boltzmann equation, phase transitions, electrostatics, polyelectrolytes, Edwards equation, nonlinear schrodinger equation, nucleic acids |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 01.01.2024 |
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| Year of publishing: | 2024 |
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| Number of pages: | str. 1-11 |
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| Numbering: | Vol. 161, issue 13, [article no.] 134906 |
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| PID: | 20.500.12556/RUNG-9382-aebf7fae-6375-ec42-ab5d-8c41fb978693  |
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| COBISS.SI-ID: | 210190595 |
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| ISSN: | 0021-9606 |
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| UDC: | 544 |
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| ISSN on article: | 0021-9606 |
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| eISSN: | 1089-7690 |
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| DOI: | 10.1063/5.0228162 |
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| NUK URN: | URN:SI:UNG:REP:WLYCJCQH |
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| Publication date in RUNG: | 04.10.2024 |
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| Views: | 44 |
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| Downloads: | 0 |
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