Publications by Ignacio Pagonabarraga Mora

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Arrested phase separation in chiral fluids of colloidal spinners

Ignacio Pagonabarraga Mora

We investigate phase separation in a chiral fluid, made of spinning ferromagnetic colloids that interact both via hydrodynamic and dipolar forces and collectively organize into separated circulating clusters. We show that, at high spinning frequency, hydro ...

AMER PHYSICAL SOC2021

Nematic Ordering of Anisotropic Nanoparticles in Block Copolymers

Ignacio Pagonabarraga Mora

Block copolymer melts have been previously used to control the position and alignment of anisotropic nanoparticles. In this work, 2D and 3D mesoscopic simulations are used to explore the phase behavior of block copolymer/nanoparticle systems. The method co ...

WILEY-V C H VERLAG GMBH2021

Dynamics and clogging of colloidal monolayers magnetically driven through a heterogeneous landscape

Ignacio Pagonabarraga Mora

We combine experiments and numerical simulations to investigate the emergence of clogging in a system of interacting paramagnetic colloidal particles driven against a disordered landscape of larger obstacles. We consider a single aperture in a landscape of ...

ROYAL SOC CHEMISTRY2020

Unfolding the prospects of computational (bio)materials modeling

Ignacio Pagonabarraga Mora

In this perspective communication, we briefly sketch the current state of computational (bio)material research and discuss possible solutions for the four challenges that have been increasingly identified within this community: (i) the desire to develop a ...

AMER INST PHYSICS2020

Self-Propulsion of Active Colloids via Ion Release: Theory and Experiments

Ignacio Pagonabarraga Mora, Samuel Sanchez

We study the self-propulsion of a charged colloidal particle that releases ionic species using theory and experiments. We relax the assumptions of thin Debye length and weak nonequilibrium effects assumed in classical phoretic models. This leads to a numbe ...

2020

Block Copolymer-Nanorod Co-assembly in Thin Films: Effects of Rod-Rod Interaction and Confinement

Ignacio Pagonabarraga Mora

Simulations and experiments of nanorods (NRs) show that co-assembly with block copolymer (BCP) melts leads to the formation of a superstructure of side-to-side NRs perpendicular to the lamellar axis. A mesoscopic model is validated against scanning electro ...

AMER CHEMICAL SOC2020

Propulsion and energetics of a minimal magnetic microswimmer

Ignacio Pagonabarraga Mora

In this manuscript we describe the realization of a minimal hybrid microswimmer, composed of a ferromagnetic nanorod and a paramagnetic microsphere. The unbounded pair is propelled in water upon application of a swinging magnetic field that induces a perio ...

ROYAL SOC CHEMISTRY2020

Unravelling the role of phoretic and hydrodynamic interactions in active colloidal suspensions

Ignacio Pagonabarraga Mora

Active fluids comprise a variety of systems composed of elements immersed in a fluid environment which can convert some form of energy into directed motion; as such they are intrinsically out-of-equilibrium in the absence of any external force. A fundament ...

ROYAL SOC CHEMISTRY2020

Ignacio Pagonabarraga Mora

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Arrested phase separation in chiral fluids of colloidal spinners

Nematic Ordering of Anisotropic Nanoparticles in Block Copolymers

Dynamics and clogging of colloidal monolayers magnetically driven through a heterogeneous landscape

Unfolding the prospects of computational (bio)materials modeling

Self-Assembly of Microscopic Rods Due to Depletion Interaction

Self-Propulsion of Active Colloids via Ion Release: Theory and Experiments

Block Copolymer-Nanorod Co-assembly in Thin Films: Effects of Rod-Rod Interaction and Confinement

Propulsion and energetics of a minimal magnetic microswimmer

Unravelling the role of phoretic and hydrodynamic interactions in active colloidal suspensions

Arrested phase separation in chiral fluids of colloidal spinners

Nematic Ordering of Anisotropic Nanoparticles in Block Copolymers

Dynamics and clogging of colloidal monolayers magnetically driven through a heterogeneous landscape

Unfolding the prospects of computational (bio)materials modeling

Unravelling the role of phoretic and hydrodynamic interactions in active colloidal suspensions

Self-Assembly of Microscopic Rods Due to Depletion Interaction

Propulsion and energetics of a minimal magnetic microswimmer

Self-Propulsion of Active Colloids via Ion Release: Theory and Experiments

Block Copolymer-Nanorod Co-assembly in Thin Films: Effects of Rod-Rod Interaction and Confinement