Title

Elastic modulus of viral nanotubes

Authors

Authors

Y. Zhao; Z. B. Ge;J. Y. Fang

Comments

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Abbreviated Journal Title

Phys. Rev. E

Keywords

TOBACCO-MOSAIC-VIRUS; MECHANICAL-PROPERTIES; LIPID TUBULES; VISUALIZATION; NANOPARTICLES; DEPOSITION; CAPSIDS; Physics, Fluids & Plasmas; Physics, Mathematical

Abstract

We report an experimental and theoretical study of the radial elasticity of tobacco mosaic virus (TMV) nanotubes. An atomic force microscope tip is used to apply small radial indentations to deform TMV nanotubes. The initial elastic response of TMV nanotubes can be described by finite-element analysis in 5 nm indentation depths and Hertz theory in 1.5 nm indentation depths. The derived radial Young's modulus of TMV nanotubes is 0.92 +/- 0.15 GPa from finite-element analysis and 1.0 +/- 0.2 GPa from the Hertz model, which are comparable with the reported axial Young's modulus of 1.1 GPa [Falvo et al., Biophys. J. 72, 1396 (1997)].

Journal Title

Physical Review E

Volume

78

Issue/Number

3

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

5

WOS Identifier

WOS:000259682700093

ISSN

1539-3755

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