Modification of lipid membrane compressibility induced by an electric field

Changes in membrane deformation and compressibility, induced by an external electric field, are investigated using coarse-grained martini force field simulations in a salt-free environment. We observe changes in the area of the membrane above a critical electric field. Below this value, the membrane...

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Autores: Prathyusha, K. R., Pagonabarraga Mora, Ignacio, Sunil Kumar, P. B.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/173713
Acceso en línea:https://hdl.handle.net/2445/173713
Access Level:acceso abierto
Palabra clave:Membranes lipídiques
Camps elèctrics
Biomolècules
Lipid membranes
Electric fields
Biomolecules
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spelling Modification of lipid membrane compressibility induced by an electric fieldPrathyusha, K. R.Pagonabarraga Mora, IgnacioSunil Kumar, P. B.Membranes lipídiquesCamps elèctricsBiomolèculesLipid membranesElectric fieldsBiomoleculesChanges in membrane deformation and compressibility, induced by an external electric field, are investigated using coarse-grained martini force field simulations in a salt-free environment. We observe changes in the area of the membrane above a critical electric field. Below this value, the membrane compressibility modulus is found to decrease monotonically. For higher electric fields, the membrane projected area remains constant while the net interfacial area increases, with the corresponding compressibility moduli, show the opposite behavior. We find that the mechanical parameters, surface tension and bending modulus, of a freely floating membrane in the absence of explicit ions, are unaffected by the presence of the electric field. We believe these results have a bearing on our understanding of the electroformation of uncharged lipids in a salt-free environment.American Physical Society2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/173713Articles publicats en revistes (Física de la Matèria Condensada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1103/PhysRevE.102.062413Physical Review E, 2020, vol. 102, p. 062413https://doi.org/10.1103/PhysRevE.102.062413(c) American Physical Society, 2020info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1737132026-05-27T06:46:51Z
dc.title.none.fl_str_mv Modification of lipid membrane compressibility induced by an electric field
title Modification of lipid membrane compressibility induced by an electric field
spellingShingle Modification of lipid membrane compressibility induced by an electric field
Prathyusha, K. R.
Membranes lipídiques
Camps elèctrics
Biomolècules
Lipid membranes
Electric fields
Biomolecules
title_short Modification of lipid membrane compressibility induced by an electric field
title_full Modification of lipid membrane compressibility induced by an electric field
title_fullStr Modification of lipid membrane compressibility induced by an electric field
title_full_unstemmed Modification of lipid membrane compressibility induced by an electric field
title_sort Modification of lipid membrane compressibility induced by an electric field
dc.creator.none.fl_str_mv Prathyusha, K. R.
Pagonabarraga Mora, Ignacio
Sunil Kumar, P. B.
author Prathyusha, K. R.
author_facet Prathyusha, K. R.
Pagonabarraga Mora, Ignacio
Sunil Kumar, P. B.
author_role author
author2 Pagonabarraga Mora, Ignacio
Sunil Kumar, P. B.
author2_role author
author
dc.subject.none.fl_str_mv Membranes lipídiques
Camps elèctrics
Biomolècules
Lipid membranes
Electric fields
Biomolecules
topic Membranes lipídiques
Camps elèctrics
Biomolècules
Lipid membranes
Electric fields
Biomolecules
description Changes in membrane deformation and compressibility, induced by an external electric field, are investigated using coarse-grained martini force field simulations in a salt-free environment. We observe changes in the area of the membrane above a critical electric field. Below this value, the membrane compressibility modulus is found to decrease monotonically. For higher electric fields, the membrane projected area remains constant while the net interfacial area increases, with the corresponding compressibility moduli, show the opposite behavior. We find that the mechanical parameters, surface tension and bending modulus, of a freely floating membrane in the absence of explicit ions, are unaffected by the presence of the electric field. We believe these results have a bearing on our understanding of the electroformation of uncharged lipids in a salt-free environment.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/173713
url https://hdl.handle.net/2445/173713
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1103/PhysRevE.102.062413
Physical Review E, 2020, vol. 102, p. 062413
https://doi.org/10.1103/PhysRevE.102.062413
dc.rights.none.fl_str_mv (c) American Physical Society, 2020
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Physical Society, 2020
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física de la Matèria Condensada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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