Models for spatial polymerization dynamics of rod-like polymers

Models for spatial polymerization dynamics of rod-like polymers.

We investigate the polymerization kinetics of rod-like polymer filaments interacting with a distribution of monomer in one spatial dimension (e.g. along a narrow tube). We consider a variety of possible cases, including competition by the filament tips for the available monomer, and behaviour analogous to "treadmilling" in which the polymer adds subunits to one end and loses them at the other e...

From toroidal to rod-like condensates of semiflexible polymers.

The competition between toroidal and rod-like conformations as possible ground states for DNA condensation is studied as a function of the stiffness, the length of the DNA, and the form of the long-range interactions between neighboring molecules, using analytical theory supported by Monte Carlo simulations. Both conformations considered are characterized by a local nematic order with hexagonal...

Molecular Dynamics simulations of rod-like polyelectrolytes

We present theoretical and numerical results on stii, linear polyelec-trolytes within the framework of the cell model. With the help of an innec-tion point criterium we discuss counterion condensation for systems with added salt. Molecular dynamics simulations of the cell model are used to show, under which circumstances the mean-eld Poisson-Boltzmann theory fails qualitatively. We present meas...

Earthquake Analysis of Spatial Rod Systems

A master element to be employed as a general spatial rod finite element is presented. This spatially curved and pretwisted element can have variable cross-section and variable curvature change. It may also be resting on an elastic foundation. Also, a finite element formulation for a general earthquake analysis of spatial rods is presented. The theoretical foundation has lead to a general-purpos...

Polymerization of Peptide Polymers for Biomaterial Applications