MorphoPhysics Group


The following selected list of publications give an indication of the sort of research we work on within the group. For a full publication list see here. These publications come from work done within the former group of John Dunlop, Biomimetic Actuation and Tissue Growth, in the Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany.

Our research interests range from exploring:

  • the role of substrate geometry on cells and growing tissues,
  • mechanical design principles of morphing materials (natural and synthetic),
  • structure-function relationships in biological materials, and
  • simulations of active matter.

Tissue Growth

  • Kollmannsberger, P., Bidan, C., Dunlop, J. W. C., Fratzl, P., Vogel, V., Tensile forces drive a reversible fibroblast-to-myofibroblast transition during tissue growth in engineered clefts, Science Advances, 2018, 4:eaao4881 
  • Bidan, C. M., Kollmannsberger, P., Gering, V., Ehrig, S., Joly, P., Petersen, A., Vogel, V., Fratzl, P., Dunlop, J. W.C., Gradual conversion of cellular stress patterns into pre-stressed matrix architecture during in vitro tissue growth. Journal of the Royal Society Interface, 2016, 13: 20160136.
  • Fischer, F. D., Zickler, G., Dunlop, J. W. C., Fratzl, P. Tissue growth controlled by geometric boundary conditions: a simple model recapitulating aspects of callus formation and bone healing, Journal of the Royal Society Interface, 2015, 12, 20150108.
  • Bidan C.M., Kommareddy K.P., Rumpler M., Kollmannsberger P., Fratzl P., Dunlop J.W.C. Geometry as a factor for tissue growth: Towards shape optimization of tissue engineering scaffolds, Advanced HealthCare Materials, 2013, 2, 186-194.
  • Gamsjäger, E., Bidan, C. M., Fischer, F.D., Fratzl P., Dunlop, J.W.C., Modelling the role of surface stress on the kinetics of tissue growth in confined geometries, Acta Biomaterialia, 2013, 9, 5531-5543.
  • Bidan C.M., Kommareddy K.P., Rumpler M., Kollmannsberger P., Bréchet Y., Fratzl P., Dunlop J.W.C., How Linear Tension Converts to Curvature: Geometric Control of Bone Tissue Growth, PLoS ONE, 2012, 7(5): e36336.
  • Rumpler, M., Woesz, A., Dunlop, J. W. C., van Dongen, J. T., Fratzl, P., The effect of geometry on three-dimensional tissue growth, Journal of the Royal Society Interface, 2008, 5(27): 1173–1180. 

Morphing Materials

Synthetic Actuators

  • Gong, J., Lin, H., Dunlop, J. W. C., Yuan, J., Hierarchically arranged helical fiber actuators derived from commercial cloth, Advanced Materials, 2017, 1605103.
  • Stoychev, G., Guiducci, L., Turcaud, S., Dunlop, J. W. C., and Ionov, L., Hole-programmed superfast multistep actuation of polymer bilayers, Advanced Functional Materials, 2016, 26, 7733-7739.
  • Guiducci, L., Weaver, J. C., Bréchet, Y. J. M., Fratzl, P., Dunlop, J. W. C., The Geometric Design and Fabrication of Actuating Cellular Structures, Advanced Materials Interfaces, 2015, 2, 1500011.
  • Zhao, Q., Heyda, J., Dzubiella, J., Täuber, T., Dunlop, J. W. C. Yuan, J., Porous poly(ionic liquid) actuator with ultra-high sensitivity to solvents, Advanced Materials, 2015, 27, 2913-2917.
  • Zhao, Q., Dunlop, J. W. C., Qiu, X., Huang, F., Zhang, Z., Heyda, J., Dzubiella, J., Antonietti, M., and Yuan, J., An instant multi-responsive porous polymer actuator operating via solvent molecule sorption, Nature Communications, 2014, 5, 4293.
  • Stoychev, G., Turcaud, S., Dunlop, J. W. C., Ionov, L., Hierarchical multi-step folding of polymer bilayers, Advanced Functional Materials, 2013, 23, 2295-2300.

Natural Actuators

  • Guiducci, L., Razghandi, K., Turcaud, S., Bertinetti, L., Rüggeberg, M., Weaver, J., Fratzl, P., Burgert, I., and Dunlop, J. W. C., Honeycomb actuators inspired by unfolding of ice-plant seed capsules, PLoS ONE, 2016, 11, e0163506.
  • Abraham, Y., Tamburu, C., Klein, E., Dunlop, J. W. C., Fratzl, P., Raviv, U., Elbaum, R., Tilted cellulose arrangement as a novel mechanism for hygroscopic coiling in the stork's bill awn, Journal of the Royal Society Interface, 2012, 9, 640-647.
  • Harrington, M. J., Razghandi, K., Ditsch, F., Guiducci, L., Rueggeberg, M., Dunlop J. W. C., Fratzl, P., Neinhuis, C., and Burgert, I., Origami-like unfolding of hydro-actuated ice plant seed capsules, Nature Communications, 2011, 2, 337.
  • Goswami, L., Dunlop, J. W. C., Jungnikl, K, Eder, M., Gierlinger, N., Coutand, C., Jeronimidis, G., Fratzl, P., Burgert, I., Stress generation in tension wood of poplar is based on the lateral swelling power of the G-layer, The Plant Journal, 2008, 56, 531-538.

Structure-Function Relationships in Biological Materials

  • Albéric, M., Dean, M. N., Gourrier, A., Wagermaier, W., Dunlop, J. W. C., Staude, A., Fratzl, P., Reiche, I., Relation between the macroscopic pattern of elephant ivory and its three-dimensional micro-tubular network, PLoS ONE, 2017, 12, e0166671.
  • Jayasankar, A, Seidel, R., Guiducci, L., Hosny, A.S.F., Fratzl, P., Weaver, J. C., Dunlop, J. W.C., Dean, M.N., Mechanical behavior of idealized, stingray-skeleton-inspired tiled composites as a function of geometry and material properties. Journal of the Mechanical Behavior of Biomedical Materials, 2017. 73, 86-101
  • Ukmar-Godec, T., Bertinetti, L., Dunlop, J. W.C., Godec, A., Grabiger, M. A., Masic, A., Nguyen, H., Zlotnikov, I., Zaslansky, P., Faivre, D., Materials nanoarchitecturing via cation-mediated protein assembly: making limpet teeth without mineral, Advanced Materials, 2017. 29, 1701171.
  • Leroux, O., Eder, M., Saxe, F., Dunlop, J. W. C., Viane, R. L. L., Knox, J. P., Comparative in situ analysis reveals the dynamic nature of sclerenchyma cell walls of the fern Asplenium rutifolium,  Accepted in Annals of Botany. 2017
  • Habegger, M.L, Dean M.N, Dunlop, J. W. C., Mullins, G, Stokes, M, Huber, D.R, Winters, D and Motta, P.J, Feeding in billfishes: inferring the role of the rostrum from a biomechanical standpoint, Journal of Experimental Biology, 2015, 218, 824-836.

Simulating Active Matter

  • Ehrig, S., Ferracci, J., Weinkamer, R., Dunlop, J. W.C., Curvature controlled defect dynamics in active systems. PRE, 2017, 95, 062609.
  • Bennet, M., McCarthy, A., Fix, D., Edwards, M. R., Repp, F., Vach, P., Dunlop, J. W. C., Sitti, M., Buller, G. S., Klumpp, S., Faivre, D., Influence of Magnetic Fields on Magneto-Aerotaxis, PLoS One, 2014, 9(7), e101150.
  • Rusconi, M., Valleriani, A., Dunlop, J. W. C., Kurths, J., Weinkamer, R., Quantitative approach to the stochastics of bone remodelling, EPL, 2012. 97, 28009.
  • Hartmann, M., Dunlop, J. W. C., Fratzl, P., Bréchet, Y., Weinkamer, R., Trabecular bone remodelling simulated by a stochastic exchange of discrete bone packets from the surface, Journal of Mechanical Behaviour of Biomedical Materials, 2011, 4, 879-887.
  • Dunlop, J. W. C., Hartmann, M. A., Bréchet, Y. J. M., Fratzl, P., Weinkamer, R., Bone remodeling is controlled by an activation barrier, not by a lazy zone, Calcified Tissue International, 2009, 85, 45-54.
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