Influence of hydrodynamic coupling on the electric linear dichroism of DNA fragments

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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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Autores principales:	Umazano, J.P., Bertolotto, J.A.
Formato:	Artículo publishedVersion
Lenguaje:	Inglés
Publicado:	2011
Materias:	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 article chemical model chemical structure chemistry conformation electricity hydrodynamics Electricity Models, Chemical Models, Molecular Nucleic Acid Conformation
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00219606_v134_n12_p_Umazano https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00219606_v134_n12_p_Umazano_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

id	I28-R145-paper_00219606_v134_n12_p_Umazano_oai
record_format	dspace
spelling	I28-R145-paper_00219606_v134_n12_p_Umazano_oai2024-08-16 Umazano, J.P. Bertolotto, J.A. 2011 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. application/pdf http://hdl.handle.net/20.500.12110/paper_00219606_v134_n12_p_Umazano eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar J Chem Phys 2011;134(12) 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 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00219606_v134_n12_p_Umazano_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
language	Inglés
orig_language_str_mv	eng
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 Umazano, J.P. Bertolotto, J.A. 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.
format	Artículo Artículo publishedVersion
author	Umazano, J.P. Bertolotto, J.A.
author_facet	Umazano, J.P. Bertolotto, J.A.
author_sort	Umazano, J.P.
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	http://hdl.handle.net/20.500.12110/paper_00219606_v134_n12_p_Umazano https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00219606_v134_n12_p_Umazano_oai
work_keys_str_mv	AT umazanojp influenceofhydrodynamiccouplingontheelectriclineardichroismofdnafragments AT bertolottoja influenceofhydrodynamiccouplingontheelectriclineardichroismofdnafragments
_version_	1809356972279988224

Influence of hydrodynamic coupling on the electric linear dichroism of DNA fragments

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