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ZIEBERT Falko

   Falko Ziebert
   Equipe Théorie et Simulation  des Polymères
    Room:    B149
    Phone:  +33 (0)3.88.41.40.97
    Email:  ziebert(at)unistra.fr
    URL:  www.softmatter.uni-freiburg.de/mitarbeiter/ziebert

research interests :

    General topics :
    • nonlinear physics, non-equilibrium physics, soft matter physics, cellular biophysics pattern formation, instabilities, complex fluids
    • cytoskeletal dynamics and structure - filaments, motors, crosslinks ; self-assembly ;
      microtubule polymorphism, motility assays
    • confined polymer systems : stability, dewetting, adhesion ; polymer interfaces ; effects of internal stresses
    • biological membranes in external fields, electrostatic and electrokinetic effects
    • collective motion of bacteria
    • cell motility

short CV :

    • 2002 Diploma in physics, Universität des Saarlandes, Germany with Prof. W. Zimmermann
    • 2006 PhD in physics, Universität Bayreuth, Germany with Prof. W. Zimmermann
    • 2006-2007 postdoc, Argonne National Lab, U.S. with Dr. I.S. Aranson
    • 2008-2010 postdoc, ESPCI with Dr. E. Raphaël and Dr. D. Lacoste
    • Since 01/2011 joint postdoc position at Physikalisches Institut, Universität Freiburg, Germany with Prof. G. Reiter and Institut Charles Sadron, Strasbourg, France with Prof. J. Baschnagel

publications :

2017

Chowdhury, M., Al Akhrass, S., Ziebert, F., & Reiter, G. (2017). Relaxing Nonequilibrated Polymers in Thin Films at Temperatures Slightly Above the Glass Transition. J. Polym. Sci. Pt. B-Polym. Phys., 55(6), 515–523.
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2016

Baschnagel, J., Meyer, H., Wittmer, J., Kulic, I., Mohrbach, H., Ziebert, F., et al. (2016). Semiflexible Chains at Surfaces: Worm-Like Chains and beyond. Polymers, 8(8), 35 pp.
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Chowdhury, M., Sheng, X. Y., Ziebert, F., Yang, A. C. M., Sepe, A., Steiner, U., et al. (2016). Intrinsic Stresses in Thin Glassy Polymer Films Revealed by Crack Formation. Macromolecules, 49(23), 9060–9067.
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Gosselin, P., Mohrbach, H., Kulic, I. M., & Ziebert, F. (2016). On complex, curved trajectories in microtubule gliding. Physica D-Nonlinear Phenomena, 318, 105–111.
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2015

Helfferich, J., Vollmayr-Lee, K., Ziebert, F., Meyer, H., & Baschnagel, J. (2015). Glass formers display universal non-equilibrium dynamics on the level of single-particle jumps. Epl, 109(3).
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Loeber, J., Ziebert, F., & Aranson, I. S. (2015). Collisions of deformable cells lead to collective migration. Scientific Reports, 5.
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Ziebert, F., Mohrbach, H., & Kulic, I. M. (2015). A nonequilibrium power balance relation for analyzing dissipative filament dynamics. European Physical Journal E, 38(12), 1–8.
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Ziebert, F., Mohrbach, H., & Kulic, I. M. (2015). Why Microtubules Run in Circles: Mechanical Hysteresis of the Tubulin Lattice. Physical Review Letters, 114(14).
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2014

Helfferich, J., Ziebert, F., Frey, S., Meyer, H., Farago, J., Blumen, A., et al. (2014). Continuous-time random-walk approach to supercooled liquids. I. Different definitions of particle jumps and their consequences. Physical Review E, 89(4).
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Helfferich, J., Ziebert, F., Frey, S., Meyer, H., Farago, J., Blumen, A., et al. (2014). Continuous-time random-walk approach to supercooled liquids. II. Mean-square displacements in polymer melts. Physical Review E, 89(4).
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Loeber, J., Ziebert, F., & Aranson, I. S. (2014). Modeling crawling cell movement on soft engineered substrates. Soft Matter, 10(9), 1365–1373.
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2013

Closa, F., Raphael, E., & Ziebert, F. (2013). Electro-hydrodynamic instability of stressed viscoelastic polymer films. European Physical Journal E, 36(10).
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Ziebert, F., & Aranson, I. S. (2013). Effects of Adhesion Dynamics and Substrate Compliance on the Shape and Motility of Crawling Cells. Plos One, 8(5).
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2012

Chowdhury, M., Freyberg, P., Ziebert, F., Yang, A. C. - M., Steiner, U., & Reiter, G. (2012). Segmental relaxations have macroscopic consequences in glassy polymer films. Physical review letters, 109(13), 136102.
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Closa, F., Ziebert, F., & Raphael, E. (2012). Effects of In-plane Elastic Stress and Normal External Stress on Viscoelastic Thin Film Stability. Mathematical Modelling of Natural Phenomena, 7(4), 6–19.
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Ziebert, F., Swaminathan, S., & Aranson, I. S. (2012). Model for self-polarization and motility of keratocyte fragments. Journal of the Royal Society Interface, 9(70), 1084–1092.
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2011

Closa, F., Ziebert, F., & Raphael, E. (2011). Interplay of internal stresses, electric stresses, and surface diffusion in polymer films. Physical Review E, 83(5).
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Ryan, S. D., Haines, B. M., Berlyand, L., Ziebert, F., & Aranson, I. S. (2011). Viscosity of bacterial suspensions: Hydrodynamic interactions and self-induced noise. Physical Review E, 83(5).
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Swaminathan, S., Ziebert, F., Aranson, I. S., & Karpeev, D. (2011). Motor-Mediated Microtubule Self-Organization in Dilute and Semi-Dilute Filament Solutions. Mathematical Modelling of Natural Phenomena, 6(1), 119–137.
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2010

Swaminathan, S., Ziebert, F., Aranson, I. S., & Karpeev, D. (2010). Patterns and intrinsic fluctuations in semi-dilute motor-filament systems. Epl, 90(2).
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Vilmin, T., Ziebert, F., & Raphael, E. (2010). Simple View on Fingering Instability of Debonding Soft Elastic Adhesives. Langmuir, 26(5), 3257–3260.
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Ziebert, F., & Lacoste, D. (2010). A Poisson-Boltzmann approach for a lipid membrane in an electric field. New Journal of Physics, 12.
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Ziebert, F., Bazant, M. Z., & Lacoste, D. (2010). Effective zero-thickness model for a conductive membrane driven by an electric field. Physical Review E, 81(3).
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2009

Swaminathan, S., Ziebert, F., Karpeev, D., & Aranson, I. S. (2009). Motor-mediated alignment of microtubules in semidilute mixtures. Physical Review E, 79(3).
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Ziebert, F., & Raphael, E. (2009). Dewetting dynamics of stressed viscoelastic thin polymer films. Physical Review E, 79(3).
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Ziebert, F., & Raphael, E. (2009). Dewetting of thin polymer films: Influence of interface evolution. Epl, 86(4).
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Ziebert, F., Vershinin, M., Gross, S. P., & Aranson, I. S. (2009). Collective alignment of polar filaments by molecular motors. European Physical Journal E, 28(4), 401–409.
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2008

Peter, R., Schaller, V., Ziebert, F., & Zimmermann, W. (2008). Pattern formation in active cytoskeletal networks. New Journal of Physics, 10.
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Ruehle, V., Ziebert, F., Peter, R., & Zimmermann, W. (2008). Instabilities in a two-dimensional polar-filament-motor system. European Physical Journal E, 27(3), 243–251.
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Ziebert, F., & Aranson, I. S. (2008). Rheological and structural properties of dilute active filament solutions. Physical Review E, 77(1).
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2007

Smith, D., Ziebert, F., Humphrey, D., Duggan, C., Steinbeck, M., Zimmermann, W., et al. (2007). Molecular motor-induced instabilities and cross linkers determine biopolymer organization. Biophysical Journal, 93(12), 4445–4452.
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Ziebert, F., Aranson, I. S., & Tsimring, L. S. (2007). Effects of cross-links on motor-mediated filament organization. New Journal of Physics, 9.
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2006

Brand, H. R., Pleiner, H., & Ziebert, F. (2006). Macroscopic dynamics of polar nematic liquid crystals. Physical Review E, 74(2).
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2005

Peter, R., Hilt, M., Ziebert, F., Bammert, J., Erlenkamper, C., Lorscheid, N., et al. (2005). Stripe-hexagon competition in forced pattern-forming systems with broken up-down symmetry. Physical Review E, 71(4).
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Ziebert, F., & Zimmermann, W. (2005). Nonlinear competition between asters and stripes in filament-motor systems. European Physical Journal E, 18(1), 41–54.
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2004

Ziebert, F., & Zimmermann, W. (2004). Comment on “Instabilities of isotropic solutions of active polar filaments”. Physical Review Letters, 93(15).
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Ziebert, F., & Zimmermann, W. (2004). Pattern formation driven by nematic ordering of assembling biopolymers. Physical Review E, 70(2).
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collaborators :

    • Igor S. Aranson
       - Materials Science Division, Argonne National Laboratory, U.S.
    • Jörg Baschnagel
       - Institut Charles Sadron, Strasbourg, France.
    • Martin Z. Bazant
       - Department of Mathematics and Department of Chemical Engineering, MIT, U.S.
    • Helmut R. Brand
       - Universität Bayreuth, Germany.
    • Pascal Damman
       - Laboratoire Interfaces et Fluides Complexes, Université de Mons-Hainaut, Belgium.
    • Steven P. Gross
       - Department of Developmental and Cell Biology, UC Irvine, U.S.
    • Josef Käs
       - Universität Leipzig, Germany.
    • Igor Kulic
       - Institut Charles Sadron, Strasbourg, France.
    • David Lacoste
       - Laboratoire de Physico-Chimie Théorique, ESPCI, France.
    • Hervé Mohrbach
       - Université de Metz, France.
    • Liliane Léger
       - Laboratoire de Physique des Solides, Université Paris-Sud Orsay , France.
    • Harald Pleiner
       - Max Planck Insitute for Polymer Research, Mainz, Germany.
    • Elie Raphaël
       - Laboratoire de Physico-Chimie Théorique, ESPCI, France.
    • Günter Reiter
       - Universität Freiburg, Germany.
    • Sumanth Swaminathan
       - Engineering and Applied Mathematics, Northwestern University, Evanston , U.S.
    • Lev S. Tsimring
       - Institute for Nonlinear Science (BioCircuits Institute), UC San Diego, U.S.
    • Walter Zimmermann
       - Universität Bayreuth, Germany.

updated 12/2012