Influence of hydrodynamic coupling on the electric linear dichroism of DNA fragments
In the present work, we study the effect of translational-rotational hydrodynamic coupling on the stationary electric linear dichroism of DNA fragments. The theoretical resolution of the problem has, so far, been dealt with analytic methods valid only in the limit of low electric fields. In this wor...
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2011
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219606_v134_n12_p_Umazano http://hdl.handle.net/20.500.12110/paper_00219606_v134_n12_p_Umazano |
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paper:paper_00219606_v134_n12_p_Umazano2023-06-08T14:44:18Z Influence of hydrodynamic coupling on the electric linear dichroism of DNA fragments Analytic method Diffusion tensor DNA fragment Electric dichroism Electric polarizabilities Hydrodynamic coupling Linear dichroism Orientational distribution functions Rotational coupling Rotational diffusion Dichroism Distribution functions DNA Electric fields Fluid dynamics Fokker Planck equation Hydrodynamics Nucleic acids Numerical methods Polarization Tensors Electric properties DNA article chemical model chemical structure chemistry conformation electricity hydrodynamics DNA Electricity Hydrodynamics Models, Chemical Models, Molecular Nucleic Acid Conformation In the present work, we study the effect of translational-rotational hydrodynamic coupling on the stationary electric linear dichroism of DNA fragments. The theoretical resolution of the problem has, so far, been dealt with analytic methods valid only in the limit of low electric fields. In this work, we apply numerical methods that allow us to study the problem and also consider electric fields of arbitrary strength. We use the bent rod molecules model to describe DNA fragments with physical properties characterized by their electric charge, electric polarizability tensor, rotational diffusion tensor, and translation-rotation coupling diffusion tensor. The necessary orientational distribution function to calculate electric dichroism is obtained by solving the Fokker-Planck equation through the finite difference method. We analyze the different contributions due to electric polarizability and translational- rotational coupling to the electric dichroism. © 2011 American Institute of Physics. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219606_v134_n12_p_Umazano http://hdl.handle.net/20.500.12110/paper_00219606_v134_n12_p_Umazano |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Analytic method Diffusion tensor DNA fragment Electric dichroism Electric polarizabilities Hydrodynamic coupling Linear dichroism Orientational distribution functions Rotational coupling Rotational diffusion Dichroism Distribution functions DNA Electric fields Fluid dynamics Fokker Planck equation Hydrodynamics Nucleic acids Numerical methods Polarization Tensors Electric properties DNA article chemical model chemical structure chemistry conformation electricity hydrodynamics DNA Electricity Hydrodynamics Models, Chemical Models, Molecular Nucleic Acid Conformation |
| spellingShingle |
Analytic method Diffusion tensor DNA fragment Electric dichroism Electric polarizabilities Hydrodynamic coupling Linear dichroism Orientational distribution functions Rotational coupling Rotational diffusion Dichroism Distribution functions DNA Electric fields Fluid dynamics Fokker Planck equation Hydrodynamics Nucleic acids Numerical methods Polarization Tensors Electric properties DNA article chemical model chemical structure chemistry conformation electricity hydrodynamics DNA Electricity Hydrodynamics Models, Chemical Models, Molecular Nucleic Acid Conformation Influence of hydrodynamic coupling on the electric linear dichroism of DNA fragments |
| topic_facet |
Analytic method Diffusion tensor DNA fragment Electric dichroism Electric polarizabilities Hydrodynamic coupling Linear dichroism Orientational distribution functions Rotational coupling Rotational diffusion Dichroism Distribution functions DNA Electric fields Fluid dynamics Fokker Planck equation Hydrodynamics Nucleic acids Numerical methods Polarization Tensors Electric properties DNA article chemical model chemical structure chemistry conformation electricity hydrodynamics DNA Electricity Hydrodynamics Models, Chemical Models, Molecular Nucleic Acid Conformation |
| description |
In the present work, we study the effect of translational-rotational hydrodynamic coupling on the stationary electric linear dichroism of DNA fragments. The theoretical resolution of the problem has, so far, been dealt with analytic methods valid only in the limit of low electric fields. In this work, we apply numerical methods that allow us to study the problem and also consider electric fields of arbitrary strength. We use the bent rod molecules model to describe DNA fragments with physical properties characterized by their electric charge, electric polarizability tensor, rotational diffusion tensor, and translation-rotation coupling diffusion tensor. The necessary orientational distribution function to calculate electric dichroism is obtained by solving the Fokker-Planck equation through the finite difference method. We analyze the different contributions due to electric polarizability and translational- rotational coupling to the electric dichroism. © 2011 American Institute of Physics. |
| title |
Influence of hydrodynamic coupling on the electric linear dichroism of DNA fragments |
| title_short |
Influence of hydrodynamic coupling on the electric linear dichroism of DNA fragments |
| title_full |
Influence of hydrodynamic coupling on the electric linear dichroism of DNA fragments |
| title_fullStr |
Influence of hydrodynamic coupling on the electric linear dichroism of DNA fragments |
| title_full_unstemmed |
Influence of hydrodynamic coupling on the electric linear dichroism of DNA fragments |
| title_sort |
influence of hydrodynamic coupling on the electric linear dichroism of dna fragments |
| publishDate |
2011 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219606_v134_n12_p_Umazano http://hdl.handle.net/20.500.12110/paper_00219606_v134_n12_p_Umazano |
| _version_ |
1768544853268889600 |