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Article: Buckling and enforced stretching of bio-filaments
Title | Buckling and enforced stretching of bio-filaments |
---|---|
Authors | |
Keywords | Analytical expressions Bending deformations Bio-filament Closed form Contour lengths |
Issue Date | 2012 |
Publisher | Elsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/jmps |
Citation | Journal of the Mechanics and Physics of Solids, 2012, v. 60 n. 11, p. 1941-1951 How to Cite? |
Abstract | We examine the force needed to extend/compress a bio-filament, a key issue in the study of cytoskeleton mechanics and polymer physics, by considering both the associated stretching and bending deformations. Specifically, closed form relationships are derived to predict the buckling of stiff filaments such as F-actin and microtubules. Our results clearly demonstrate that the maximum force a 2D filament can sustain is higher than the Euler buckling load whereas the force in a 3D filament is always below it, and hence clarify some of the ambiguities in the literature. In addition, analytical expression is also obtained to describe how the extensional force increases when a flexible molecule, like DNA, is stretched close to its contour length, which has been shown to fit a variety of experimental data very well. Our theory provides important corrections/improvements to several well-known existing models. © 2012 Elsevier Ltd. |
Persistent Identifier | http://hdl.handle.net/10722/164190 |
ISSN | 2023 Impact Factor: 5.0 2023 SCImago Journal Rankings: 1.632 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hu, B | en_US |
dc.contributor.author | Shenoy, VB | en_US |
dc.contributor.author | Lin, Y | en_US |
dc.date.accessioned | 2012-09-20T07:56:32Z | - |
dc.date.available | 2012-09-20T07:56:32Z | - |
dc.date.issued | 2012 | en_US |
dc.identifier.citation | Journal of the Mechanics and Physics of Solids, 2012, v. 60 n. 11, p. 1941-1951 | en_US |
dc.identifier.issn | 0022-5096 | - |
dc.identifier.uri | http://hdl.handle.net/10722/164190 | - |
dc.description.abstract | We examine the force needed to extend/compress a bio-filament, a key issue in the study of cytoskeleton mechanics and polymer physics, by considering both the associated stretching and bending deformations. Specifically, closed form relationships are derived to predict the buckling of stiff filaments such as F-actin and microtubules. Our results clearly demonstrate that the maximum force a 2D filament can sustain is higher than the Euler buckling load whereas the force in a 3D filament is always below it, and hence clarify some of the ambiguities in the literature. In addition, analytical expression is also obtained to describe how the extensional force increases when a flexible molecule, like DNA, is stretched close to its contour length, which has been shown to fit a variety of experimental data very well. Our theory provides important corrections/improvements to several well-known existing models. © 2012 Elsevier Ltd. | - |
dc.language | eng | en_US |
dc.publisher | Elsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/jmps | - |
dc.relation.ispartof | Journal of the Mechanics and Physics of Solids | en_US |
dc.rights | NOTICE: this is the author’s version of a work that was accepted for publication in Journal of the Mechanics and Physics of Solids. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of the Mechanics and Physics of Solids, 2012, v. 60 n. 11, p. 1941-1951. DOI: 10.1016/j.jmps.2012.06.004 | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Analytical expressions | - |
dc.subject | Bending deformations | - |
dc.subject | Bio-filament | - |
dc.subject | Closed form | - |
dc.subject | Contour lengths | - |
dc.title | Buckling and enforced stretching of bio-filaments | en_US |
dc.type | Article | en_US |
dc.identifier.email | Hu, B: drben@hku.hk | en_US |
dc.identifier.email | Lin, Y: ylin@hku.hk | en_US |
dc.identifier.authority | Lin, Y=rp00080 | en_US |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1016/j.jmps.2012.06.004 | - |
dc.identifier.scopus | eid_2-s2.0-84865200856 | - |
dc.identifier.hkuros | 205787 | en_US |
dc.identifier.volume | 60 | en_US |
dc.identifier.issue | 11 | - |
dc.identifier.spage | 1941 | - |
dc.identifier.epage | 1951 | - |
dc.identifier.eissn | 1873-4782 | - |
dc.identifier.isi | WOS:000308679900007 | - |
dc.publisher.place | United Kingdom | - |
dc.identifier.citeulike | 10818356 | - |
dc.identifier.issnl | 0022-5096 | - |