171 citations · 594 across the 26 of their papers we have counts for
20 papers · 1 filter
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…
Interfacial free energy and Tolman length of curved liquid-solid interfaces from equilibrium studies
P. Montero de Hijes, Jorge. R. Espinosa, Valentino Bianco +2
In this work, we study by means of simulations of hard spheres the equilibrium between a spherical solid cluster and the fluid. In the NVT ensemble we observe stable/metastable clu…
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…
Non-monotonous translocation time of polymers across pores
Emanuele Locatelli, Valentino Bianco, Chantal Valeriani +1
Polymers confined in corrugated channels, i.e. channels of varying amplitude, display {multiple local maxima and minima of the diffusion coefficient upon increasing their degree of…
Hydrophobic homopolymer's coil-globule transition and adsorption onto a hydrophobic surface under different conditions
Bernat Durà Faulí, Valentino Bianco, Giancarlo Franzese
Unstructured proteins can modulate cellular responses to environmental conditions by undergoing coil-globule transitions and phase separation. However, the molecular mechanisms of…
Rheology of Pseudomonas fluorescens biofilms: from experiments to DPD mesoscopic modelling
Jose Martin Roca, Valentino Bianco, Francisco Alarcon +6
The presence of bacterial biofilms in clinical and industrial settings is a major issue worldwide. A biofilm is a viscoelastic matrix, composed of bacteria producing a network of E…
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…
Water Contribution to the Protein Folding and its Relevance in Protein Design and Protein Aggregation
Giancarlo Franzese, Joan Àguila Rojas, Valentino Bianco +1
Water plays a fundamental role in protein stability. However, the effect of the properties of water on the behaviour of proteins is only partially understood. Several theories have…
Active polymer rings: activity-induced collapse and dynamical arrest
Emanuele Locatelli, Valentino Bianco, Paolo Malgaretti
We investigate, using numerical simulations, the conformations of isolated active ring polymers. We find that the their behaviour depends crucially on their size: short rings ($N \…
Protein Unfolding and Aggregation near a Hydrophobic Interface
David March, Valentino Bianco, Giancarlo Franzese
The behavior of proteins near interfaces is relevant for biological and medical purposes. Previous results in bulk show that, when the protein concentration increases, the proteins…
Self-adaptation of Pseudomonas fluorescens biofilms to hydrodynamic stress
Josue J. Perez, Francisco Alarcon Oseguera, Ajay K. Monnappa +9
In some conditions, bacteria self-organise into biofilms, supracellular structures made of a self-produced embedding matrix, mainly composed on polysaccharides, DNA, proteins and l…
In silico evidence that protein unfolding is as a precursor of the protein aggregation
Valentino Bianco, Giancarlo Franzese, Ivan Coluzza
We present a computational study on the folding and aggregation of proteins in aqueous environment, as function of its concentration. We show how the increase of the concentration…
Hydrogen bond correlated percolation in a supercooled water monolayer as a hallmark of the critical region
Valentino Bianco, Giancarlo Franzese
Numerical simulations for a number of water models have supported the possibility of a metastable liquid-liquid critical point (LLCP) in the deep super-cooled region. Here we consi…
Globule-like conformation and enhanced diffusion of active polymers
Valentino Bianco, Emanuele Locatelli, Paolo Malgaretti
We study the dynamics and conformation of polymers composed by active monomers. By means of Brownian dynamics simulations we show that when the direction of the self-propulsion of…
Multi-scale approach for self-Assembly and protein folding
Oriol Vilanova, Valentino Bianco, Giancarlo Franzese
We develop a multi-scale approach to simulate hydrated nanobio systems under realistic condi- tions (e.g., nanoparticles and protein solutions at physiological conditions over time…
How the stability of a folded protein depends on interfacial water properties and residue-residue interactions
Valentino Bianco, Neus Pagès Gelabert, Ivan Coluzza +1
Proteins work only if folded in their native state, but changes in temperature T and pressure P induce their unfolding. Therefore for each protein there is a stability region (SR)…
Reentrant spinodals and the Speedy scenario in colloidal model systems
Lorenzo Rovigatti, Valentino Bianco, José Maria Tavares +1
A re-entrant gas-liquid spinodal was proposed as a possible explanation of the apparent divergence of the compressibility and specific heat on supercooling water. Such a counter in…
Universal criterion for designability of heteropolymers
Chiara Cardelli, Valentino Bianco, Lorenzo Rovigatti +4
Proteins are an example of heteropolymers able to self-assemble in specific target structures. The self-assembly of designed artificial heteropolymers is still, to the best of our…
Non-monotonous polymer translocation time across corrugated channels: comparison between Fick-Jacobs approximation and numerical simulations
Valentino Bianco, Paolo Malgaretti
We study the translocation of polymers across varying-section channels. Using systematic approximations, we derive a simplified model that reduces the problem of polymer translocat…
Critical behavior of a water monolayer under hydrophobic confinement
Valentino Bianco, Giancarlo Franzese
The properties of water can have a strong dependence on the confinement. Here, we consider a water monolayer nanoconfined between hydrophobic parallel walls under conditions that p…