Research

Thermal Tunneling of Homopolymers through Amphiphilic Membranes

ACS Macro Lett., 6, pp 247–251 (2017)
Marco Werner, Jasper Bathmann, Vladimir A. Baulin, and Jens-Uwe Sommer
We propose a theory to predict the passive translocation of flexible polymers through amphiphilic membranes. By using a generic model for the potential felt by a monomer across the membrane we calculate the free energy profile for homopolymers as a function […]

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Translocation and Induced Permeability of Random Amphiphilic Copolymers Interacting with Lipid Bilayer Membranes

Biomacromolecules, (2014) Article ASAP DOI: 10.1021/bm501266x

Marco Werner  and Jens-Uwe Sommer
We investigate adsorption and passive translocation of random amphiphilic copolymers interacting with a self-assembled lipid bilayer membrane. By using the bond fluctuation model with explicit solvent, we consider random copolymers under variation of the fraction, H̅, of hydrophobic sites and chain length. Our results indicate a point of […]

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Critical adsorption controls translocation of polymer chain through lipid bilayers and permeation of solvent

J.-U. Sommer, M. Werner and V. A. Baulin

Europhysics Letters, 98, 18003 (2012)

Monte Carlo simulations using an explicit solvent model indicate a new pathway for translocation of a polymer chain through a lipid bilayer. We consider a polymer chain composed of repeat units with a given hydrophobicity and a coarse-grained model of a lipid bilayer in […]

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