Departmental Papers (BE)

Document Type

Journal Article

Date of this Version

July 2005

Comments

Copyright American Physical Society. Reprinted from Physical Review Letters, Volume 95, Issue 2, Article 026101, 8 July 2005, 4 pages.
Publisher URL: http://dx.doi.org/10.1103/PhysRevLett.95.026101

Abstract

The adhesion and bending modulus of polybutadiene-poly(ethylene oxide) block copolymer vesicles made from a bidisperse mixture of polymers is measured using micropipette aspiration. The adhesion energy between biotinylated vesicles and avidin beads is modeled by incorporating the extension of the adhesive ligands above the surface brush of the vesicle according to the blob model of bidisperse polymer mixtures of Komura and Safran assuming the polymer brush at the surface of the vesicle is compact. The same model accurately reproduces the scaling of the bending modulus with polymer composition.

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Date Posted: 09 September 2005

This document has been peer reviewed.