Title

Buckling of lipid tubules in shrinking liquid droplets

Authors

Authors

Y. Zhao; L. N. An;J. Y. Fang

Comments

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Abbreviated Journal Title

Nano Lett.

Keywords

STRETCHING DNA; MOLECULES; MICROSTRUCTURES; MICROTUBULES; TEMPLATES; NANOTUBE; LENGTH; Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &; Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter

Abstract

Self-assembled hollow lipid tubules are interesting and potentially useful supramolecular structures. Here, we study the deformation of lipid tubules of 1,2-bis(tricosa-10,12-diynoyl)-sn-glycero-3-phosphocholine (DC8,9PC) trapped inside liquid droplets on glass substrates. The interface tension of the shrinking liquid droplets exerts a compression force on the ends of the trapped lipid tubules, and causes them to buckle. This provides a method to measure their mechanical properties. The Young's modulus of the DC8,9PC lipid tubules is estimated to similar to 1.07 GPa. As the strain energy of the buckled tubules builds up, they poke through the interface of shrinking liquid droplets and then adhere onto glass substrates to form looplike shapes.

Journal Title

Nano Letters

Volume

7

Issue/Number

5

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

1360

Last Page

1363

WOS Identifier

WOS:000246313000044

ISSN

1530-6984

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