Title

Bending and radial deformation of lipid tubules on self-assembled thiol monolayers

Authors

Authors

Y. Zhao; N. Mahajan;J. Y. Fang

Comments

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Abbreviated Journal Title

J. Phys. Chem. B

Keywords

FORCE MICROSCOPY; DRUG-DELIVERY; NANOTUBES; DNA; MICROSTRUCTURES; ARCHITECTURES; FABRICATION; TRANSITION; NANOFIBERS; TEMPLATES; Chemistry, Physical

Abstract

Lipid tubules represent a hollow, cylindrical supramolecular structure formed by rolled-up lipid bilayers. We find that the lipid tubules of 1,2-bis(tricosa-10,12-diynoyl)-sn-glycero-3-phosphocholine can be bent into a loopike shape by the shrinking contact line of droplets on self-assembled monolayers (SAMs) of 1-dodecanethiol. The persistence length of individual lipid tubules is estimated to be similar to 41 mu m. The radial deformation of the lipid tubules on SAMs is studied under applied load using atomic force microscope. The stiffness of the tubules in the radial direction is found to increase when the number of the lipid bilayers in the tubule wall increases.

Journal Title

Journal of Physical Chemistry B

Volume

110

Issue/Number

44

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

22060

Last Page

22063

WOS Identifier

WOS:000241729300003

ISSN

1520-6106

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