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(Active) Polymers
(Active) Polymers
What happens when a polymer is translocated across a porous medium? Which interplay we can expect between the interanl degrees of freedom of the polymer and the pore medium?
Active polymers are made of monomers that are active and they induce a force tangential to the backbone. The activity can induce novel dynamical regimes absent at equilibrium. Within this project we tackle the dynamics of sigle active filaments in different scenarios to explore the peculirarities of this intriguing active systems.
Nonmonotonous Translocation Time of Polymers across Pores
Phys. Rev. Lett. 131 048101 (2023)
Antiresonant driven systems for particle manipulation
Phys. Rev. E 103 062102 (2021)
Polymer Translocation Across a Corrugated Channel: Fick–Jacobs Approximation Extended Beyond the Mean First-Passage Time
Non-monotonous polymer translocation time across corrugated channels: Comparison between Fick-Jacobs approximation and numerical simulations
J. Chem. Phys. 145 114904 (2016)
Activity-Induced Collapse and Arrest of Active Polymer Rings
Physical Review Letters 126 (9), 097801 (2021)
Globulelike conformation and enhanced diffusion of active polymers
Active Engines & Information
Active Engines & Information
What happens if a heat engine is contact with an active bath instead that on an ideal gas?
What is the role of information in the onste of out-of-equiibrium patterns and structures?
Phys. Rev. Lett. 129, 228005 (2022)
Mechanical pressure and work cycle of confined active Brownian particle
Order and information in the patterns of spinning magnetic micro-disks at the air-water interface
Electrokinetics
Electrokinetics
The transport of electrolytes across varying-section channels and pores is crucial for several technological applications, such as blue energy harvesting devices, desalination membranes, particles-seperation devices as well as for biological scenarios such as ionic channles, acquaporines and nucler pores. Here we look for novel transport regimes that can be obtained by propelry tuning the geometry of the channl and the properties of the electrolyte.
Local electroneutrality breakdown for electrolytes within varying-section nanopores
Computational methods and theory for ion channel research
Advances in Physics: X 7 2080587 (2023)
Electroosmosis in nanopores: computational methods and technological applications
Advances in Physics: X 7 2036638 (2023)
Hydrodynamic simulations of sedimenting dilute particle suspensions under repulsive DLVO interactions
Driving an electrolyte through a corrugated nanopore
J. Chem. Phys. 151 084902 (2019)
Charge polarization, local electroneutrality breakdown and eddy formation due to electroosmosis in varying-section channels
Entropically induced asymmetric passage times of charged tracers across corrugated channels
J. Chem. Phys. 144 034901 (2016)
Geometrically Tuned Channel Permeability
Macromolecular Symposia 357 178 (2015)
Entropic electrokinetics: recirculation, particle separation, and negative mobility
Porous Materials
Porous Materials
In many circumstances, spanning from oil recovery, soil permeation, up to blood flow and cereals in sylos the transport is controlled by constrictions along the flowing direction. Here, the main question is the dependence of the transport on the geometry of the pore.
J. Mol. Liq. 368 120636 (2022)
J. Coll. Int. Sci. 641 251 (2023)
J. Coll. Int. Sci. 608 2694 (2022)
Antiresonant driven systems for particle manipulation
Phys. Rev. E 103 062102 (2021)
Transport of neutral and charged nanorods across varying-section channels
Reconfiguring confined magnetic colloids with tunable fluid transport behavior
National Science Review, nwaa301 (2020)
Active microrheology in corrugated channels
J. Chem. Phys. 149, 174908 (2018)
Local pressure for confined systems
Phys. Rev. E 97, 022102 (2018)
Rheological behavior of colloidal suspension with long-range interactions
Phys. Rev. E 98, 042603 (2018)
Rectification and non-Gaussian diffusion in heterogeneous media
Tracer diffusion of hard-sphere binary mixtures under nano-confinement
Confined chemical reactions
Confined chemical reactions
In several scenarios, spanning from the lotus leaf, to lab-on-a-chip devices, chemical reactions occur within confined scenarios such as pores, droplets, and thin films. Therefore it is crucial to assess their dynamics under diverse transport and chemical conditions
Precision of Radiation Chemistry Networks: Playing Jenga with Kinetic Models for Liquid-Phase Electron Microscopy
J. Chem. Phys. 159 134903 (2023)
Science Advances 8 eade3262 (2022)
Phys. Rev. Lett. 129 188003 (2022)
Inhomogeneous surface tension of chemically active fluid interfaces
Molecular Motors
Molecular Motors
When molecular motors actively displace inside the cell the induce a local flow of cytoplasm. Such a flow can induce fluid-mediated interactions among the moleculr motors. Moreover, the crowded envoronment of the cell as well as ist geometry (think of axons) may tune the performance of molecular motors
Phys. Rev. Lett. 119 168101 (2017)
J. Chem. Phys. 138 194906 (2013)
Phys. Rev. Lett. 109 168101 (2012)
Cooperative rectification in confined Brownian ratchets
Active Particles
Active Particles
One of the most intriguing features (but not the only one!) of phoresis is the chance that it offers to design micro and nano swimmers. In this series of works I explore the effective interactions between phoretic colloids and fluid interfaces.
Splitting probabilities for dynamics in corrugated channels: Passive vs. active Brownian motion
Model microswimmers in channels with varying cross section
J. Chem. Phys. 146 174901 (2017)
Phys. Rev. Lett. 116 078301 (2016)
Other
Other
No man is an island! Here I collect those contributions driven by curiosity, random encounters/collaborations, etc.
Resolving the microscopic hydrodynamics at the moving contact line
Phys. Rev. Fluids 7 L102001 (2023)
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