Active transport in complex media: Relationship between persistence and superdiffusion

We study the relationship between anomalous diffusion and persistent motion of micron-sized particles moving in a viscoelastic environment and subjected to an external noise. In the framework of a generalized Langevin equation, we compare the analytical expressions of the mean square displacement an...

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Detalles Bibliográficos
Autores principales:	Levi, Valeria, Bruno, Luciana
Publicado:	2011
Materias:	Anomalous diffusion Generalized Langevin equation Intracellular transport Turning angle Viscoelastic media Diffusion Viscoelasticity Differential equations
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03784371_v390_n6_p1026_Despsito http://hdl.handle.net/20.500.12110/paper_03784371_v390_n6_p1026_Despsito
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_03784371_v390_n6_p1026_Despsito
record_format	dspace
spelling	paper:paper_03784371_v390_n6_p1026_Despsito2023-06-08T15:40:15Z Active transport in complex media: Relationship between persistence and superdiffusion Levi, Valeria Bruno, Luciana Anomalous diffusion Generalized Langevin equation Intracellular transport Turning angle Viscoelastic media Anomalous diffusion Generalized Langevin equation Intracellular transport Turning angle Viscoelastic media Diffusion Viscoelasticity Differential equations We study the relationship between anomalous diffusion and persistent motion of micron-sized particles moving in a viscoelastic environment and subjected to an external noise. In the framework of a generalized Langevin equation, we compare the analytical expressions of the mean square displacement and the mean cosine of the turning angle. Both magnitudes can be easily computed from the particles trajectories, and allow us to investigate the different anomalous regimes typically obtained, for instance, in single particle tracking experiments within living cells. Finally, we analyze the directional changes occurring during the motion of pigment organelles driven by molecular motors in Xenopus laevis melanocytes, as an example of application of our model. © 2010 Elsevier B.V. All rights reserved. Fil:Levi, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bruno, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03784371_v390_n6_p1026_Despsito http://hdl.handle.net/20.500.12110/paper_03784371_v390_n6_p1026_Despsito
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Anomalous diffusion Generalized Langevin equation Intracellular transport Turning angle Viscoelastic media Anomalous diffusion Generalized Langevin equation Intracellular transport Turning angle Viscoelastic media Diffusion Viscoelasticity Differential equations
spellingShingle	Anomalous diffusion Generalized Langevin equation Intracellular transport Turning angle Viscoelastic media Anomalous diffusion Generalized Langevin equation Intracellular transport Turning angle Viscoelastic media Diffusion Viscoelasticity Differential equations Levi, Valeria Bruno, Luciana Active transport in complex media: Relationship between persistence and superdiffusion
topic_facet	Anomalous diffusion Generalized Langevin equation Intracellular transport Turning angle Viscoelastic media Anomalous diffusion Generalized Langevin equation Intracellular transport Turning angle Viscoelastic media Diffusion Viscoelasticity Differential equations
description	We study the relationship between anomalous diffusion and persistent motion of micron-sized particles moving in a viscoelastic environment and subjected to an external noise. In the framework of a generalized Langevin equation, we compare the analytical expressions of the mean square displacement and the mean cosine of the turning angle. Both magnitudes can be easily computed from the particles trajectories, and allow us to investigate the different anomalous regimes typically obtained, for instance, in single particle tracking experiments within living cells. Finally, we analyze the directional changes occurring during the motion of pigment organelles driven by molecular motors in Xenopus laevis melanocytes, as an example of application of our model. © 2010 Elsevier B.V. All rights reserved.
author	Levi, Valeria Bruno, Luciana
author_facet	Levi, Valeria Bruno, Luciana
author_sort	Levi, Valeria
title	Active transport in complex media: Relationship between persistence and superdiffusion
title_short	Active transport in complex media: Relationship between persistence and superdiffusion
title_full	Active transport in complex media: Relationship between persistence and superdiffusion
title_fullStr	Active transport in complex media: Relationship between persistence and superdiffusion
title_full_unstemmed	Active transport in complex media: Relationship between persistence and superdiffusion
title_sort	active transport in complex media: relationship between persistence and superdiffusion
publishDate	2011
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03784371_v390_n6_p1026_Despsito http://hdl.handle.net/20.500.12110/paper_03784371_v390_n6_p1026_Despsito
work_keys_str_mv	AT levivaleria activetransportincomplexmediarelationshipbetweenpersistenceandsuperdiffusion AT brunoluciana activetransportincomplexmediarelationshipbetweenpersistenceandsuperdiffusion
_version_	1768544644469096448

Active transport in complex media: Relationship between persistence and superdiffusion

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