Document Detail


Pressure patches for membranes: the induced pinch of a grafted polymer.
MedLine Citation:
PMID:  11088569     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Achieving control of membrane shape and topology is of crucial importance to regulate function and performance of many systems in the realms of biology, physics, and chemical sciences. The design of a kit of versatile microscopic tools for tuning the shapes of fluid membranes relies ultimately on the possibility of tailoring molecules for applying a given, well-chosen force, to the self-assembled interfaces. Here we discuss theoretically the ability of grafted polymers to perform as mesoscopic pressure patches. We compute the pressure that a grafted polymer applies to the supporting surface. We also show that this entropic pressure leads to a well-defined pinched form of the membranes. Moreover, new membrane-mediated forces result from the action of these pressure tools, enabling action upon their spatial distribution along the membrane surface.
Authors:
T Bickel; C Marques; C Jeppesen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics     Volume:  62     ISSN:  1063-651X     ISO Abbreviation:  Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics     Publication Date:  2000 Jul 
Date Detail:
Created Date:  2001-01-08     Completed Date:  2001-01-08     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9887340     Medline TA:  Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1124-7     Citation Subset:  IM    
Affiliation:
LDFC-UMR 7506, 3 rue de l'Université, 67084 Strasbourg Cedex, France.
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MeSH Terms
Descriptor/Qualifier:
Elasticity
Lipid Bilayers / chemistry,  metabolism
Liposomes / chemistry,  metabolism
Membrane Fluidity
Membranes, Artificial*
Normal Distribution
Polymers / metabolism*
Pressure
Temperature
Thermodynamics
Tissue Adhesions
Chemical
Reg. No./Substance:
0/Lipid Bilayers; 0/Liposomes; 0/Membranes, Artificial; 0/Polymers

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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