161 citations · 420 across the 14 of their papers we have counts for
15 papers
Design Principles for Programmable Topological Soft Networks
Andrea Bonato, Davide Marenduzzo, Enzo Orlandini
Physical crosslinks in conventional gels are static and spatially localised, fundamentally limiting their capacity to adapt, self-heal, or perform mechanical work. Topological gels…
Nucleoid clustering drives stepwise expansion and segregation of replicating bacterial chromosomes
Giada Forte, Enzo Orlandini, Davide Marenduzzo
Bacterial chromosome replication occurs in the absence of a canonical spindle apparatus; yet it reliably produces organised and segregated genomes. While both passive and active me…
Topological localisation and motility of active knots
Andrea Bonato, Davide Marenduzzo, Enzo Orlandini +1
Nonequilibrium active polymers provide a minimal framework to investigate biopolymers such as DNA and chromatin under the action of molecular motors. Here we study active ring poly…
Field-induced phase transitions in ferro-antiferromagnetic diblock copolymers
Alberto Raiola, Emanuele Locatelli, Davide Marenduzzo +1
We study the equilibrium properties of a model of magnetic diblock copolymer where each monomer is decorated with an Ising-like spin. Spins interact ferromagnetically within each b…
Topological weight and structural diversity of polydisperse chromatin loop networks
Andrea Bonato, Enrico Carlon, Sergey Kitaev +2
Current biophysical models for transcriptionally active chromatin view this as a polymer with sticky sites, mimicking transcription units such as promoters and enhancers which inte…
3D active nematic disclinations behave as Majorana quasiparticles
Louise C. Head, Giuseppe Negro, Livio N. Carenza +7
Quasiparticles are low-energy excitations with important roles in condensed matter physics. An intriguing example is provided by Majorana fermions, quasiparticles which are identic…
Topological spectra and entropy of chromatin loop networks
Andrea Bonato, Dom Corbett, Sergey Kitaev +3
The 3D folding of a mammalian gene can be studied by a polymer model, where the chromatin fibre is represented by a semiflexible polymer which interacts with multivalent proteins,…
Combinatorics and topological weights of chromatin loop networks
Andrea Bonato, Dom Corbett, Sergey Kitaev +3
Polymer physics models suggest that chromatin spontaneously folds into loop networks with transcription units (TUs), such as enhancers and promoters, as anchors. Here we use combin…
Ring-o-rings: a new category of supramolecular structures with topologically tunable properties
Luca Tubiana, Franco Ferrari, Enzo Orlandini
Macrochains of topologically interlocked rings with unique physical properties have recently gained considerable interest in supramolecular chemistry, biology, and soft matter. Mos…
Shear dynamics of an inverted nematic emulsion
A. Tiribocchi, M. Da Re, D. Marenduzzo +1
Here we study theoretically the dynamics of a 2D and a 3D isotropic droplet in a nematic liquid crystal under a shear flow. We find a large repertoire of possible nonequilibrium st…
Facilitated diffusion on confined DNA
G. Foffano, D. Marenduzzo, E. Orlandini
In living cells, proteins combine 3D bulk diffusion and 1D sliding along the DNA to reach a target faster. This process is known as facilitated diffusion, and we investigate its dy…
Shearing active gels close to the isotropic-nematic transition
M. E. Cates, S. M. Fielding, D. Marenduzzo +2
We study numerically the rheological properties of a slab of active gel close o the isotropic-nematic transition. The flow behavior shows strong dependence on sample size, boundary…
Switching hydrodynamics in multi-domain, twisted nematic, liquid crystal devices
D. Marenduzzo, E. Orlandini, J. M. Yeomans
We study the switching dynamics in two-domain and four-domain twisted nematic liquid crystal devices. The equilibrium configuration of these devices involves the coexistence of reg…
Dynamical scaling of the DNA unzipping transition
D. Marenduzzo, S. M. Bhattacharjee, A. Maritan +2
We report studies of the equilibrium and the dynamics of a general set of lattice models which capture the essence of the force-induced or mechanical DNA unzipping transition. Besi…
Lattice Boltzmann simulations of lamellar and droplet phases
G. Gonnella, E. Orlandini, J. M. Yeomans
Lattice Boltzmann simulations are used to investigate spinodal decomposition in a two-dimensional binary fluid with equilibrium lamellar and droplet phases. We emphasise the import…