David Hansmann – Investigador

David Hansmann

E-MAIL: david.hansmann@conicet.gov.ar

TEL: +54 9 223 481-1816


Adjunct Professor of the Faculty of Exact and Natural Sciences, UNMdP

Research associate at IFIMAR (CONICET)


I am adjunct professor at the Department of Physics of the State University of Mar del Plata and research associate at IFIMAR. My research focuses on the statistical physics of complex physical and biological systems.

My colleagues and I model and describe complex dynamic systems that develop in ordered and disordered environments to explain transitions between different behaviors or establish classes of universality. The models we use address different topics like the growth of interfaces, the movement of self-propelled (biological) agents and population dynamics, among other systems.

Current research topics:

– Modeling the movement of bacteria capable of moving through the Run and Tumble mechanism in different environments.
– The statistical properties of the Swimming to Swarming transition in a modeled bacterial colony.
– The laws and scale relationships for the statistical properties that characterize the movement of the colony of bacteria.
– The dynamic properties of the edge or wet/dry interface of a bacterial colony for bacterial systems that make up biofilms.
– The modeling of Quorum Sensing mechanisms considering surfactants and self-inducing molecules.
– Interface growth models using their related Langevin equations to determine universality classes.
– Competitive growth models using the coarse grain approach via test function transformations.


Publications in journals / Pesentations at scientific meetings  since 2011

  • Fier G., Hansmann D., Buceta R.C., “Langevin equations for the run-and-tumble of swimming bacteria”, Soft Matter (2018), DOI:10.1039/C8SM00252E
  • Fier G., Hansmann D., Buceta R.C., “Stochastic Model for Direction Changes of Swimming Bacteria”, Soft Matter (2017), 13 – 3385-3394
  • Hansmann D., Fier G., Buceta R.C., “New Insights into the Dynamics of Swarming Bacteria: A Theoretical Study”, Biorxiv (2016) and arXiv (2016)
  • Michel R., Hansmann D., Neumann S., Glasser W., Schuhmacher H., Dagendorf V., Nolte R., Herpers U., Smirnov A.N., Ryzhov I.V., Prokofiev A.V., Malmborg P., Kollár D.,Meulders J.-P. ,“Excitation functions for the production of radionuclides by neutron-induced reactions on C, O, Mg, Al, Si, Fe, Co, Ni, Cu, Ag, Te, Pb, and U up to 180 MeV”, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms (2015), 30.
  • Buceta R.C., Hansmann D., van Haeften B., “Revisiting random deposition with surface relaxation: approaches from growth rules to the Edwards-Wilkinson equation”, Journal of Statistical Mechanics: theory and Experiment (2014), 12028.
  • Gesing Th. M., Mendive C.B, Curti M., Hansmann D., Nénert G., Kalita P- E., Linpinska K. E., Cornelius L., Murshed M. M, “Structural properties of mullite-type Pb(Al1-xMnx)BO4”, Zeitschrift fuer Kristallographie (2013), 532.
  • Hansmann D., Buceta R.C., “Coarse grained approach for volume conserving models”, Physica A: Statistical Mechanics and its Applications 392 (2013) , 301
  • Buceta R.C., Hansmann D., “Coarse grained approach for universality classification of discrete models”, Journal of Physics A: Math. Theor. 45 (2012) 435202
  • Mendive C., Hansmann D., Bredow T., Bahnemann D. “New Insights into the Mechanism of TiO2 Photocatalysis: Processes beyond the Electron-Hole Creation” Journal of Physical Chemistry C 115 (2011) 19676
  • Vassallo L., Hansmann D. (Mayo 2018) Crecimiento de colonias de bacterias no motiles, 16th TREFEMAC, Mar del Plata, Argentina
  • Buceta R.C., Fier G., Hansmann D (Mayo 2018) Modelo estocástico para describir los cambios de dirección en la natación de bacterias flageladas, 16th TREFEMAC, Mar del Plata, Argentina
  • Fier G., Buceta R.C., Hansmann D. (Mayo 2018) Ecuaciones de Langevin para comportamiento de Run y Tumble en bacterias flageladas, 16th TREFEMAC, Mar del Plata, Argentina
  • Hansmann D., Fier G., Buceta R.C. (Mayo 2016) Modeling Collective Bacterial Behavior based on inelastic collisions, 14th TREFEMAC, Bariloche, Argentina
  • Hansmann D., Fier G., Terranova G. (Mayo 2016) Comparison of Guided Random Search Techniques to Minimize Objective Functions of Continuous Variables, 14th TREFEMAC, Bariloche, Argentina
  • Fier G., Hansmann D, Buceta R.C. (Diciembre 2015) Pattern-Formation Governed by Classical Mechanics, VI Taller Marplatense de Bioinformática y Genómica, Buenos Aires, Argentina
  • Fier G., Hansmann D, Buceta R.C. (Agosto 2015) Motility of Escherichia coli: Transition from swimming to swarming, XI Congreso Argentino de Microbiologia General, Cordoba, Argentina
  • Hansmann D., Fier G., Buceta R.C. (Mayo 2015) Modeling the motion of E.coli in colonies of different cellular densities: A transition from swimming to swarming, 13th TREFEMAC, San Rafael, Argentina
  • Buceta R.C., Hansmann D. , von Haeften B. (Mayo 2015) Conectando el modelo RDSR con la ecuación de Edwards-Wilkinson, 13th TREFEMAC, San Rafael, Argentina
  • Fier G., Buceta R.C, Hansmann D. (Agosto 2014) Modelo Cinético Simple de Swarming Bacteriano, 6° Escuela Argentina de Matemática y Biología – BIOMAT, La Falda, Argentina
  • Hansmann D., Fier G., Buceta R.C. (Mayo 2014) Competitive Bacterial Swarming Model, 12th TREFEMAC, Bahia Blanca, Argentina
  • Hansmann D., Buceta R.C. (Deciembre 2013) New Coarse Grained Approach for Discrete Surface Models, 14th International Workshop on Instabilities and Non-Equilibrium Structures, Viña del Mar, Chile
  • Buceta R.C., Hansmann D., Torres M F (Mayo 2013) Estudio del ruido Barkhausen en un modelo de película delgada, 11° TREFEMAC, La Plata, Argentina
  • Buceta R.C., Hansmann D., (Mayo 2013) Modelos discretos de molecular-beam-epitaxy. Enfoque de grano grueso vía funciones test, 11° TREFEMAC, La Plata, Argentina
  • Murshed M. M., Curti M., Hansmann D., Mendive C.B., Gesing Th. M.,(Marzo 2013) Raman studies on mullite-type PbMBO4, 21st Annual Meeting of the German Crystallographic Society (DGK), Freiberg, Alemania
  • M. Gesing, Hansmann D., Nénert G., Murshed M. M., (Marzo 2013) Lattice thermal expansion modeling of mullite-type PbFeBO4, 21st Annual Meeting of the German Crystallographic Society (DGK), Freiberg, Alemania
  • Mendive C., Hansmann D., Curti M., Bredow T., Bahnemann D., (Octobre 2012) What an electron-hole pair upon UV irradiation can do besides the red-ox reactions, The 7° Annual Conference on the Physics, Chemistry and Biology of Water, Vermont, EE.UU.
  • Hansmann D., Buceta R.C., (Mayo 2012) New coarse grained approach for simple surface growth model, 10° TREFEMAC, Córdoba, Argentina.
  • Buceta R.C., Hansmann D., (Mayo 2012) Conserved surface dynamics with(out) deposition or relaxation, 10° TREFEMAC, Córdoba, Argentina.
  • Mendive C. B., Hansmann D., Bredow T., Bahnemann D., (Mayo 2011) Comprendiendo los Mecanismos en Fotocatálisis Asistida por TiO2: Procesos térmicos más allá de la creación del par electrón hueco, XVII Congreso Argentino de Fisicoquímica y Química Inorgánica, Córdoba, Argentina.
  • Buceta R.C., Hansmann D., (Mayo 2011) Deposición Balística Revisitada, 9° TREFEMAC, San Luis, Argentina.