title: Characteristic periodic motion of polymers in shear flow.
abstract: The motion of both free and tethered polymer molecules as well as rigid Brownian rods in unbound shear flow is found to be characterized by a clear periodicity or tumbling frequency. Periodicity is shown using a combination of single molecule DNA experiments and computer simulations. In all cases, we develop scaling laws for this behavior and demonstrate that the frequency of characteristic periodic motion scales sublinearly with flow rate.
authors.affiliation: Department of Chemical Engineering, Stanford University, Stanford, California 94305, USA.
authors.forename: Charles M
authors.initials: CM
authors.lastname: Schroeder
authors.forename: Rodrigo E
authors.initials: RE
authors.lastname: Teixeira
authors.forename: Eric S G
authors.initials: ES
authors.lastname: Shaqfeh
authors.forename: Steven
authors.initials: S
authors.lastname: Chu
mesh_terms: D003198:Computer Simulation; D004247:DNA / Q000737:chemistry*; D008956:Models, Chemical; D010507:Periodicity; D011108:Polymers / Q000737:chemistry*
chemical_list: D011108:Polymers; D004247:DNA