Lateral Dynamics in Polymer-Supported Membranes

We investigate the lateral dynamics in a purely viscous lipid membrane which is supported by a thin polymer sheet (polymer-supported membrane). The generalized frequency-dependent mobility tensor of the polymer-supported membrane is obtained by taking into account the viscoelasticity of the polymer...

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Detalles Bibliográficos
Autores principales: Komura, Shigeyuki, Ramachandran, Sanoop, Seki, Kazuhiko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2012
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5449032/
http://dx.doi.org/10.3390/ma5101923
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author Komura, Shigeyuki
Ramachandran, Sanoop
Seki, Kazuhiko
author_facet Komura, Shigeyuki
Ramachandran, Sanoop
Seki, Kazuhiko
author_sort Komura, Shigeyuki
collection PubMed
description We investigate the lateral dynamics in a purely viscous lipid membrane which is supported by a thin polymer sheet (polymer-supported membrane). The generalized frequency-dependent mobility tensor of the polymer-supported membrane is obtained by taking into account the viscoelasticity of the polymer sheet. Due to its viscoelasticity, the cross-correlation functions of two particles embedded in the membrane exhibit an anomalous diffusion. A useful relation for two-point microrheology connecting the cross-correlation function and the modulus of the polymer sheet is provided.
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spelling pubmed-54490322017-07-28 Lateral Dynamics in Polymer-Supported Membranes Komura, Shigeyuki Ramachandran, Sanoop Seki, Kazuhiko Materials (Basel) Article We investigate the lateral dynamics in a purely viscous lipid membrane which is supported by a thin polymer sheet (polymer-supported membrane). The generalized frequency-dependent mobility tensor of the polymer-supported membrane is obtained by taking into account the viscoelasticity of the polymer sheet. Due to its viscoelasticity, the cross-correlation functions of two particles embedded in the membrane exhibit an anomalous diffusion. A useful relation for two-point microrheology connecting the cross-correlation function and the modulus of the polymer sheet is provided. MDPI 2012-10-19 /pmc/articles/PMC5449032/ http://dx.doi.org/10.3390/ma5101923 Text en © 2012 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Komura, Shigeyuki
Ramachandran, Sanoop
Seki, Kazuhiko
Lateral Dynamics in Polymer-Supported Membranes
title Lateral Dynamics in Polymer-Supported Membranes
title_full Lateral Dynamics in Polymer-Supported Membranes
title_fullStr Lateral Dynamics in Polymer-Supported Membranes
title_full_unstemmed Lateral Dynamics in Polymer-Supported Membranes
title_short Lateral Dynamics in Polymer-Supported Membranes
title_sort lateral dynamics in polymer-supported membranes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5449032/
http://dx.doi.org/10.3390/ma5101923
work_keys_str_mv AT komurashigeyuki lateraldynamicsinpolymersupportedmembranes
AT ramachandransanoop lateraldynamicsinpolymersupportedmembranes
AT sekikazuhiko lateraldynamicsinpolymersupportedmembranes

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