Viscoelastic properties of ring-linear DNA blends exhibit nonmonotonic dependence on blend composition
Karthik R. Peddireddy, Megan Lee, Charles M. Schroeder, Rae M. Robertson-Anderson
Abstract
This paper presents linear and nonlinear optical tweezers microrheology measurements of entangled blends of ring and linear DNA. The authors observe a strong non-monotonic dependence of viscoelastic properties on the fraction of linear chains in the blend, arising from the threading of ring polymers by linear chains.
Topics & Concepts
MicrorheologyViscoelasticityMaterials scienceLinear polymerPolymerPolymer blendNonlinear systemRing (chemistry)Chain (unit)Optical tweezersFraction (chemistry)Composite materialThermodynamicsPolymer chemistryLinear relationshipChemical physicsRheologyRheology and Fluid Dynamics StudiesAdvanced Physical and Chemical Molecular InteractionsMaterial Dynamics and Properties