As Kai Grass is not a member of our working group anymore, the information on this page might be outdated.
During my PhD thesis (8.15 MB), I investigated the structure formation and dynamics of polyelectrolytes during DNA Electrophoresis. This work is closely related to the separation of DNA during sequencing using varying electrophoretic techniques. My work will included theoretical approaches as well as extensive computer simulations with newly devised models. The work led to a deeper understanding of the complex mechanisms involved in this process. A seconde research topic was the study of different label types for end-labeled free-solution electrophoresis (ELFSE)
Further research topics are electro-hydrodynamics in confinement and an iPBS interative Poisson Boltzmann solver.
I am also interested in analyzing and simulating surprising properties of various other complex systems.
My other personal interests are karate and roleplaying games.
K. Grass and C. Holm.
"Polyelectrolytes in electric fields: Measuring the dynamical effective charge and effective friction".
[PDF] (4 MB)
K. Grass and C. Holm and G. W. Slater.
"Optimizing end-labeled free-solution electrophoresis by increasing the hydrodynamic friction of the drag labels".
G. W. Slater and C. Holm and M. V. Chubynsky and H. W. de Haan and A. Dubé and K. Grass and O. A. Hickey and C. Kingsburry and D. Sean and T. N. Shendruk and L. Zhan.
"Modeling the separation of macromolecules: A review of current computer simulation methods".
[PDF] (602 KB)
K. Grass and C. Holm.
"On the importance of hydrodynamic interactions in polyelectrolyte electrophoresis".
Journal of Physics: Condensed Matter
[PDF] (245 KB)
K. Grass and U. Böhme and U. Scheler and H. Cottet and C. Holm.
"Importance of Hydrodynamic Shielding for the Dynamic Behavior of Short Polyelectrolyte Chains".
Physical Review Letters
[PDF] (115 KB)
Martin O. Steinhauser and Kai Grass and Elmar Strassburger and Alexander Blumen.
"Impact failure of granular materials – Non-equilibrium multiscale simulations and high-speed experiments".
International Journal of Plasticity
[PDF] (6 MB)
Martin O. Steinhauser and Kai Grass and Klaus Thoma and Alexander Blumen.
"Impact dynamics and failure of brittle solid states by means of nonequilibrium molecular dynamics simulations".