Berlin 2015 – scientific programme
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DY: Fachverband Dynamik und Statistische Physik
DY 2: Statistical Physics in Biological Systems (joint session DY/ BP/CPP)
DY 2.7: Talk
Monday, March 16, 2015, 11:30–11:45, BH-N 243
DNA denaturation transition: environmental effects on scaling — •Christian von Ferber1 and Yurij Holovatch2 — 1Coventry University, UK — 2Institute for Condensed Matter Physics, National Academy of Sciences of Ukraine, Lviv, UA
The Poland and Scheraga model for the DNA denaturation transition is reconsidered taking into account environmental effects. We apply field theoretical methods to discuss environmental effects on the nature of the transition. In particular we discuss variants of the transition that may occur due to particular properties of the environment. These are the presence of uncorrelated and power-law long-range correlated disorder which influences the transition as function of the power law exponent, the quality of the solution which may affect the self- and mutual interaction of both single and double strands and combination of these. All these have significant effects on the transition.