402 citations · 8.7k across the 191 of their papers we have counts for
18 papers · 1 filter
Actomyosin contraction induces droplet motility
Thomas Le Goff, Benno Liebchen, Davide Marenduzzo
While cell crawling on a solid surface is relatively well understood, and relies on substrate adhesion, some cells can also swim in the bulk, through mechanisms that are still larg…
Active interface growth and pattern formation in membrane-protein systems
F. Cagnetta, M. R. Evans, D. Marenduzzo
Inspired by recent experimental observation of patterning at the membrane of a living cell, we propose a generic model for the dynamics of a fluctuating interface driven by particl…
Density Dependent Cohesion Leads to Controlled Phase Separation in Brownian Suspensions
Gavin Melaugh, Davide Marenduzzo, Alexander Morozov +1
Mechanical interactions between biological cells may be mediated by secreted products, making them dependent on the local particle density. Here, we explore the generic physics of…
Kinetic theory of pattern formation in mixtures of microtubules and molecular motors
Ivan Maryshev, Davide Marenduzzo, Andrew B. Goryachev +1
In this study we formulate a theoretical approach, based on a Boltzmann-like kinetic equation, to describe pattern formation in two-dimensional mixtures of microtubular filaments a…
Anchoring-driven spontaneous rotations in active gel droplets
Ana R. Fialho, Matthew L. Blow, Davide Marenduzzo
We study the dynamics of an active gel droplet with imposed orientational anchoring (normal or planar) at its surface. We find that if the activity is large enough droplets subject…
Flow of deformable droplets: discontinuous shear thinning and velocity oscillations
M. Foglino, A. N. Morozov, O. Henrich +1
We study the rheology of a suspension of soft deformable droplets subjected to a pressure-driven flow. Through computer simulations, we measure the apparent viscosity as a function…
Shaping Epigenetic Memory via Genomic Bookmarking
Davide Michieletto, Michael Chiang, Davide Coli +4
Reconciling the stability of epigenetic patterns with the rapid turnover of histone modifications and their adaptability to external stimuli is an outstanding challenge. Here, we p…
A hydrodynamic bifurcation in electroosmotically-driven periodic flows
Alexander Morozov, Davide Marenduzzo, Ronald G. Larson
In this paper we report a novel inertial instability that occurs in electro-osmotically driven channel flows. We assume that the charge motion under the influence of an externally…
Ring Polymers: Threadings, Knot Electrophoresis and Topological Glasses
Davide Michieletto, Enzo Orlandini, Davide Marenduzzo +1
Elucidating the physics of a concentrated suspension of ring polymers, or of an ensemble of ring polymers in a complex environment, is an important outstanding question in polymer…
Switching dynamics in cholesteric liquid crystal emulsions
Federico Fadda, Giuseppe Gonnella, Davide Marenduzzo +2
In this work we numerically study the switching dynamics of a 2D cholesteric emulsion droplet immersed in an isotropic fluid under an electric field, which is either uniform or rot…
Contractile and chiral activities co-determine the helicity of swimming droplet trajectories
Elsen Tjhung, Michael E. Cates, Davide Marenduzzo
Active fluids are a class of non-equilibrium systems where energy is injected into the system continuously by the constituent particles themselves. Many examples, such as bacterial…
Epigenetic Transitions and Knotted Solitons in Stretched Chromatin
Davide Michieletto, Enzo Orlandini, Davide Marenduzzo
The spreading and regulation of epigenetic marks on chromosomes is crucial to establish and maintain cellular identity. Nonetheless, the dynamical mechanism leading to the establis…
Dynamical Scaling and Phase Coexistence in Topologically-Constrained DNA Melting
Y. A. G. Fosado, D. Michieletto, D. Marenduzzo
There is a long-standing experimental observation that the melting of topologically constrained DNA, such as circular-closed plasmids, is less abrupt than that of linear molecules.…
Entropic elasticity and dynamics of the bacterial chromosome: a simulation study
M. C. F. Pereira, C. A. Brackley, J. S. Lintuvuori +2
We study the compression and extension dynamics of a DNA-like polymer interacting with non-DNA binding and DNA-binding proteins, by means of computer simulations. The geometry we c…
Phoretic Interactions Generically Induce Dynamic Clusters and Wave Patterns in Active Colloids
Benno Liebchen, Davide Marenduzzo, Michael E. Cates
We introduce a representative minimal model for phoretically interacting active colloids. Combining kinetic theory, linear stability analyses, and a general relation between self-p…
The role of correlations in the collective behaviour of microswimmer suspensions
Joakim Stenhammar, Cesare Nardini, Rupert W. Nash +2
In this Letter, we study the collective behaviour of a large number of self-propelled microswimmers immersed in a fluid. Using unprecedently large-scale lattice Boltzmann simulatio…
Motility of active nematic films driven by "active anchoring"
Matthew L. Blow, Marco Aqil, Benno Liebchen +1
We provide a minimal model for an active nematic film in contact with both a solid substrate and a passive isotropic fluid, and explore its dynamics in one and two dimensions using…
Hydrodynamic instabilities in active cholesteric liquid crystals
Carl A. Whitfield, Tapan Chandra Adhyapak, Adriano Tiribocchi +3
We describe the basic properties and consequences of introducing active stresses, with principal direction along the local director, in cholesteric liquid crystals. The helical gro…