Modification of lipid membrane compressibility induced by an electric field
| العنوان: | Modification of lipid membrane compressibility induced by an electric field |
|---|---|
| المؤلفون: | Ignacio Pagonabarraga, K. R. Prathyusha, P. B. Sunil Kumar |
| المصدر: | Dipòsit Digital de la UB Universidad de Barcelona |
| بيانات النشر: | American Physical Society, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Biomolecules, Materials science, Electric fields, Condensed matter physics, Force field (physics), Flexural modulus, technology, industry, and agriculture, Modulus, Lipid membranes, 01 natural sciences, Membranes lipídiques, 010305 fluids & plasmas, Surface tension, Quantitative Biology::Subcellular Processes, Membrane, Biomolècules, Electric field, 0103 physical sciences, Compressibility, 010306 general physics, Lipid bilayer, Camps elèctrics |
| الوصف: | 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. |
| وصف الملف: | application/pdf |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a76f90b45f7be5b0257a2e166a18bd5 http://hdl.handle.net/2445/173713 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....7a76f90b45f7be5b0257a2e166a18bd5 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |