title: Instabilities of isotropic solutions of active polar filaments.
abstract: We study the dynamics of an isotropic solution of polar filaments coupled by molecular motors which generate relative motion of the filaments in two and three dimensions. We investigate the stability of the homogeneous state for constant motor concentration taking into account excluded volume and an estimate of entanglement. At low filament density the system develops a density instability, while at high density entanglement drives the instability of orientational fluctuations.
authors.affiliation: Applied Mathematics, University of Leeds, Leeds LS2 9JT, United Kingdom.
authors.forename: Tanniemola B
authors.initials: TB
authors.lastname: Liverpool
authors.forename: M Cristina
authors.initials: MC
authors.lastname: Marchetti
mesh_terms: D000199:Actins / Q000737:chemistry / Q000378:metabolism; D003599:Cytoskeleton / Q000737:chemistry* / Q000378:metabolism; D007382:Intermediate Filaments / Q000737:chemistry / Q000378:metabolism; D016547:Kinesins / Q000737:chemistry / Q000378:metabolism; D008870:Microtubules / Q000737:chemistry / Q000378:metabolism; D008954:Models, Biological; D020409:Molecular Motor Proteins / Q000737:chemistry* / Q000378:metabolism; D009218:Myosins / Q000737:chemistry / Q000378:metabolism; D012996:Solutions
chemical_list: D000199:Actins; D020409:Molecular Motor Proteins; D012996:Solutions; D009218:Myosins; D016547:Kinesins