Membrane curvature induced by polymer adsorption

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The phenomena resulting from interaction between polymers and membranes pose important problems for biological applications. Based on a scaling theory, we investigate the spontaneous curvature of a membrane induced by either flexible or semiflexible chain adsorption. Irrespective of chain stiffness, a weakly adsorbed polymer induces the membrane to bend away (to have a positive curvature) from the polymer mostly due to increase of the conformational entropy compared with that for a flat surface. On the other hand, a strongly adsorbed polymer induces the membrane to bend toward the polymer mostly due to decrease in the interaction energy, leading to a possibility of encapsulation of polymer by the membrane.
Publisher
AMERICAN PHYSICAL SOC
Issue Date
2001-04
Language
English
Article Type
Article
Keywords

SLIDING COLUMNAR PHASE; SEMIFLEXIBLE POLYMERS; ATTRACTING SURFACES; ANCHORED POLYMERS; LIPID COMPLEXES; FLUID MEMBRANES; CHARGED SURFACE; TRANSITION; ADHESION; ELASTICITY

Citation

PHYSICAL REVIEW E, v.63, no.4

ISSN
1063-651X
DOI
10.1103/PhysRevE.63.041910
URI
http://hdl.handle.net/10203/82108
Appears in Collection
NT-Journal Papers(저널논문)
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