title: Spherical vesicles distorted by a grafted latex bead: an exact solution.
abstract: We present an exact solution to the problem of the global shape description of a spherical vesicle distorted by a grafted latex bead. This solution is derived by treating the nonlinearity in bending elasticity through the (topological) Bogomol'nyi decomposition technique and elastic compatibility. We recover the "hat-model" approximation in the limit of a small latex bead and find that the region antipodal to the grafted latex bead flattens. We also derive the appropriate shape equation using the variational principle and relevant constraints.
authors.affiliation: Graduate Institute of Biophysics and Center for Complex Systems, National Central University, 300 Jhongda Road, Jhongli City, Taoyuan, Taiwan 320, Taiwan. jgmbenoit@mailsnare.net
authors.forename: Jérôme
authors.initials: J
authors.lastname: Benoit
authors.forename: Avadh
authors.initials: A
authors.lastname: Saxena
mesh_terms: D001703:Biophysics / Q000379:methods*; D003198:Computer Simulation; D004548:Elasticity; D007840:Latex; D008560:Membrane Fluidity; D008863:Microspheres; D015233:Models, Statistical; D008962:Models, Theoretical; D016011:Normal Distribution; D015203:Reproducibility of Results; D013499:Surface Properties
chemical_list: D007840:Latex