Orientationally ordered aggregates of stiff polyelectrolytes in the presence of multivalent salt
Aggregation of stiff polyelectrolytes in solution and angle- and distance-dependent potential of mean force between two like-charged rods are studied in the presence of 3-valent salt using molecular dynamics simulations. In the bulk solution, formation of long-lived metastable structures with simila...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2009
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| _version_ | 1797077942146170880 |
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| author | Mohammadinejad, S Fazli, H Golestanian, R |
| author_facet | Mohammadinejad, S Fazli, H Golestanian, R |
| author_sort | Mohammadinejad, S |
| collection | OXFORD |
| description | Aggregation of stiff polyelectrolytes in solution and angle- and distance-dependent potential of mean force between two like-charged rods are studied in the presence of 3-valent salt using molecular dynamics simulations. In the bulk solution, formation of long-lived metastable structures with similarities to the raft-like structures of actin filaments is observed within a range of salt concentration. The system finally goes to a state with lower free energy in which finite-sized bundles of parallel polyelectrolytes form. Preferred angle and interaction type between two like-charged rods at different separations and salt concentrations are also studied, which shed some light on the formation of orientationally ordered structures. |
| first_indexed | 2024-03-07T00:25:17Z |
| format | Journal article |
| id | oxford-uuid:7def80a7-5953-4024-bd5c-51ca80cf4887 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:25:17Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:7def80a7-5953-4024-bd5c-51ca80cf48872022-03-26T21:06:52ZOrientationally ordered aggregates of stiff polyelectrolytes in the presence of multivalent saltJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7def80a7-5953-4024-bd5c-51ca80cf4887EnglishSymplectic Elements at Oxford2009Mohammadinejad, SFazli, HGolestanian, RAggregation of stiff polyelectrolytes in solution and angle- and distance-dependent potential of mean force between two like-charged rods are studied in the presence of 3-valent salt using molecular dynamics simulations. In the bulk solution, formation of long-lived metastable structures with similarities to the raft-like structures of actin filaments is observed within a range of salt concentration. The system finally goes to a state with lower free energy in which finite-sized bundles of parallel polyelectrolytes form. Preferred angle and interaction type between two like-charged rods at different separations and salt concentrations are also studied, which shed some light on the formation of orientationally ordered structures. |
| spellingShingle | Mohammadinejad, S Fazli, H Golestanian, R Orientationally ordered aggregates of stiff polyelectrolytes in the presence of multivalent salt |
| title | Orientationally ordered aggregates of stiff polyelectrolytes in the
presence of multivalent salt |
| title_full | Orientationally ordered aggregates of stiff polyelectrolytes in the
presence of multivalent salt |
| title_fullStr | Orientationally ordered aggregates of stiff polyelectrolytes in the
presence of multivalent salt |
| title_full_unstemmed | Orientationally ordered aggregates of stiff polyelectrolytes in the
presence of multivalent salt |
| title_short | Orientationally ordered aggregates of stiff polyelectrolytes in the
presence of multivalent salt |
| title_sort | orientationally ordered aggregates of stiff polyelectrolytes in the presence of multivalent salt |
| work_keys_str_mv | AT mohammadinejads orientationallyorderedaggregatesofstiffpolyelectrolytesinthepresenceofmultivalentsalt AT fazlih orientationallyorderedaggregatesofstiffpolyelectrolytesinthepresenceofmultivalentsalt AT golestanianr orientationallyorderedaggregatesofstiffpolyelectrolytesinthepresenceofmultivalentsalt |