title: Pearling instabilities of membrane tubes with anchored polymers.
abstract: We have studied the pearling instability induced on hollow tubular lipid vesicles by hydrophilic polymers with hydrophobic side groups along the backbone. The results show that the polymer concentration is coupled to local membrane curvature. The relaxation of a pearled tube is characterized by two different well-separated time scales, indicating two physical mechanisms. We present a model, which explains the observed phenomena and predicts polymer segregation according to local membrane curvature at late stages.
authors.affiliation: Department of Physics of Complex Systems, The Weizmann Institute of Science, Rehovot, Israel.
authors.forename: I
authors.initials: I
authors.lastname: Tsafrir
authors.forename: D
authors.initials: D
authors.lastname: Sagi
authors.forename: T
authors.initials: T
authors.lastname: Arzi
authors.forename: M A
authors.initials: MA
authors.lastname: Guedeau-Boudeville
authors.forename: V
authors.initials: V
authors.lastname: Frette
authors.forename: D
authors.initials: D
authors.lastname: Kandel
authors.forename: J
authors.initials: J
authors.lastname: Stavans
mesh_terms: D005456:Fluorescent Dyes; D008081:Liposomes / Q000737:chemistry*; D008567:Membranes, Artificial; D008954:Models, Biological; D010713:Phosphatidylcholines / Q000737:chemistry*; D010743:Phospholipids / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry
chemical_list: D005456:Fluorescent Dyes; D008081:Liposomes; D008567:Membranes, Artificial; D010713:Phosphatidylcholines; D010743:Phospholipids; D011108:Polymers; C027891:1-stearoyl-2-oleoyl-sn-glycero-3-phosphocholine