Hydrodynamic Properties of Polymers Screening the Electrokinetic Flow: Insights from a Computational Study.

ABSTRACT: Understanding the hydrodynamic properties of polymeric coatings is crucial for the rational design of molecular transport involving polymeric surfaces and is relevant to drug delivery, sieving, molecular separations, etc. It has been found that the hydrodynamic radius of a polymer segment is an order of magnitude smaller than its physical size, but the origin of this effect does not seem to be well understood. Herein, we study the hydrodynamic properties of polymeric coatings by using molecular dynamics simulations, navigated by the continuous Navier-Stokes-Brinkman model. We confirm that the averaged hydrodynamic radius of a polymer bead is about one order of magnitude smaller than its physical radius, and, in addition, we show that it exhibits a strong dependence on the degree of polymer

SUBMITTER: Wu P 

PROVIDER: S-EPMC6631430 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature