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DTSTART;TZID=US/Eastern:20150226T160000
DTEND;TZID=US/Eastern:20150226T170000
SUMMARY:Computer Simulation Studies of Polymer Adsorption and Aggregation - From Flexible to Stiff -- Prof. Wolfhard Janke
DESCRIPTION:Departmental Colloquium. An overview is given on recent computer simulation studies of polymer adsorption and aggregation using generic coarse-grained models. The simulations are performed with Monte Carlo methods in generalized ensembles (multicanonical and parallel tempering) and analyzed from a canonical and microcanonical view. As examples polymer chains interacting with a flat patterned surface or being confined in a spherical cage will be discussed. Of particular interest is the scaling behavior of conformational transitions in dependence of the polymer's bending stiffness. Bending stiffness also  plays a key role for semiflexible polymer aggregation. Our results show that this is the distinguishing parameter that controls whether amorphous aggregates or twisted bundle-like motifs are formed.
LOCATION:Physics Auditorium (202)
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