39 citations · 99 across the 14 of their papers we have counts for
12 papers · 1 filter
Partial vision leads to an unexpected emergent collective behavior in active aligning particles
Raúl Molina-Prados Lallena, José Martín-Roca, Chantal Valeriani
The Vicsek Model represents a paradigmatic framework for understanding the collective motion of active aligning particles, traditionally assuming isotropic interaction fields. Insp…
How Phase Coexistence affects the mechanical properties of heterogeneous 2D suspensions
Raul Molina-Prados Lallena, Jose Martin-Roca, Kristian Thijssen +3
Although numerical simulations of rheological measurements typically focus on homogeneous systems, heterogeneity can profoundly impact material properties. We report on the rheolog…
Numerical methods for unraveling inter-particle potentials in colloidal suspensions: A comparative study for two-dimensional suspensions
Clare R. Rees-Zimmerman, José Martín-Roca, David Evans +3
We compare three model-free numerical methods for inverting structural data to obtain interaction potentials, namely iterative Boltzmann inversion (IBI), test-particle insertion (T…
Colloidal Model for Investigating Optimal Efficiency in Weakly Coupled Ratchet Motors
José Martín-Roca, Laura Izquierdo-Solís, Fernando Martínez-Pedrero +3
We investigate the transport of superparamagnetic colloidal particles along self-assembled tracks using a periodically applied magnetic field as a model for ratchet-like mechanisms…
Tangentially Active Polymers in Cylindrical Channels
José Martín-Roca, Emanuele Locatelli, Valentino Bianco +2
We present an analytical and computational study characterizing the structural and dynamical properties of an active filament confined in cylindrical channels. We first outline the…
The carnivorous plant Genlisea harnesses active particle dynamics to prey on microfauna
José Martín-Roca, C. Miguel Barriuso-Gutiérrez, Raúl Martínez Fernández +4
Carnivory in plants is an unusual trait that has arisen multiple times, independently, throughout evolutionary history. Plants in the genus Genlisea are carnivorous, and feed on mi…
Rheology of Pseudomonas fluorescens biofilms: from experiments to predictive DPD mesoscopic modelling
Jose Mart. n-Roca, Valentino Bianco, Francisco Alarcon +6
Bacterial biofilms mechanically behave as viscoelastic media consisting of micron-sized bacteria crosslinked to a selfproduced network of extracellular polymeric substances (EPS) e…
Minimal numerical ingredients describe chemical microswimmers's 3D motion
Maximilian R. Bailey, C. Miguel Barriuso Gutiérrez, José Martín-Roca +6
The underlying mechanisms and physics of catalytic Janus microswimmers is highly complex, requiring details of the associated phoretic fields and the physiochemical properties of c…
Simulating active agents under confinement with Dissipative Particles (hydro)Dynamics
C. Miguel Barriuso G., Jose Martin-Roca, Valentino Bianco +2
We study active agents embedded in bulk or in confinement explicitly considering hydrodynamics and simulating the swimmers via an implementation inspired by the squirmer model. We…
Dynamical anomalies and structural features of Active Brownian Particles characterised by two repulsive length scales
Jose Martin-Roca, Raul Martinez, Fernando Martinez-Pedrero +2
In this work we study a two-dimensional system composed by Active Brownian Particles (ABPs) interacting via a repulsive potential with two-length-scales, a soft shell and a hard-co…
Rotating Micro-Spheres for Adsorption Monitoring at a Fluid Interface
J. Martín-Roca, M. Jiménez, F. Ortega +4
Hypothesis: A broad range of phenomena, such as emulsification and emulsion stability, foam formation or liquid evaporation, are closely related to the dynamics of adsorbing colloi…
Characterization of MIPS in a suspension of repulsive Active Brownian Particles through dynamical features
Jose Martin, Raul Martinez, Lachlan C. Alexander +5
The two-dimensional Active Brownian Particles system is meant to be composed of hard disks, that show excluded volume interactions, usually simulated via molecular dynamics using p…