Nonlinear mechanical response of DNA due to anisotropic bending elasticity.
The response of a short DNA segment to bending is studied, taking into account the anisotropy in the bending rigidities caused by the double-helical structure. It is shown that the anisotropy introduces an effective nonlinear twist-bend coupling that can lead to the formation of kinks and modulation...
| Asıl Yazarlar: | , |
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| Materyal Türü: | Journal article |
| Dil: | English |
| Baskı/Yayın Bilgisi: |
2003
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| _version_ | 1826262739706707968 |
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| author | Mohammad-Rafiee, F Golestanian, R |
| author_facet | Mohammad-Rafiee, F Golestanian, R |
| author_sort | Mohammad-Rafiee, F |
| collection | OXFORD |
| description | The response of a short DNA segment to bending is studied, taking into account the anisotropy in the bending rigidities caused by the double-helical structure. It is shown that the anisotropy introduces an effective nonlinear twist-bend coupling that can lead to the formation of kinks and modulations in the curvature and/or in the twist, depending on the values of the elastic constants and the imposed deflection angle. The typical wavelength for the modulations, or the distance between the neighboring kinks is found to be set by half of the DNA pitch. |
| first_indexed | 2024-03-06T19:40:51Z |
| format | Journal article |
| id | oxford-uuid:209f2683-e48d-4cf2-83cb-084e3e208af0 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:40:51Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:209f2683-e48d-4cf2-83cb-084e3e208af02022-03-26T11:28:34ZNonlinear mechanical response of DNA due to anisotropic bending elasticity.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:209f2683-e48d-4cf2-83cb-084e3e208af0EnglishSymplectic Elements at Oxford2003Mohammad-Rafiee, FGolestanian, RThe response of a short DNA segment to bending is studied, taking into account the anisotropy in the bending rigidities caused by the double-helical structure. It is shown that the anisotropy introduces an effective nonlinear twist-bend coupling that can lead to the formation of kinks and modulations in the curvature and/or in the twist, depending on the values of the elastic constants and the imposed deflection angle. The typical wavelength for the modulations, or the distance between the neighboring kinks is found to be set by half of the DNA pitch. |
| spellingShingle | Mohammad-Rafiee, F Golestanian, R Nonlinear mechanical response of DNA due to anisotropic bending elasticity. |
| title | Nonlinear mechanical response of DNA due to anisotropic bending elasticity. |
| title_full | Nonlinear mechanical response of DNA due to anisotropic bending elasticity. |
| title_fullStr | Nonlinear mechanical response of DNA due to anisotropic bending elasticity. |
| title_full_unstemmed | Nonlinear mechanical response of DNA due to anisotropic bending elasticity. |
| title_short | Nonlinear mechanical response of DNA due to anisotropic bending elasticity. |
| title_sort | nonlinear mechanical response of dna due to anisotropic bending elasticity |
| work_keys_str_mv | AT mohammadrafieef nonlinearmechanicalresponseofdnaduetoanisotropicbendingelasticity AT golestanianr nonlinearmechanicalresponseofdnaduetoanisotropicbendingelasticity |