title: Segregation of semiflexible macromolecules in nanochannel.
abstract: Investigation of segregation of polymer coils in open channel was extended relative to previous studies from flexible chains to semiflexible chains. Our results are based on simulation of confinement free energy of a chain in channel and on direct simulation of coil segregation process. For confinement free energy, we confirm the predicted opposite trend with increasing chain stiffness for the weak and for strong confinement regimes. Results of two different approaches are consistent, in agreement with theoretical analysis and indicate a stronger segregation tendency of flexible chains in channel relative to semiflexible chains both in its extent and dynamics.
authors.affiliation: Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava 45, Slovakia.
authors.forename: Dušan
authors.initials: D
authors.lastname: Račko
authors.forename: Peter
authors.initials: P
authors.lastname: Cifra
mesh_terms: D046911:Macromolecular Substances / Q000737:chemistry; D056004:Molecular Dynamics Simulation; D049329:Nanostructures / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*
chemical_list: D046911:Macromolecular Substances; D011108:Polymers