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Aarts M, Bazant MZ, Bocquet L, Cicoira F, Dryfe RAW, Faez S, Fung YKC, Haimov E, Hockin B, Holm C, Kamsma TM, Kanoufi F, Kornyshev AA, Lemay SG, Levin Y, Marbach S, Mohamed E, Montes de Oca J, Mugele F, Olvera de la Cruz M, Perkin S, Pringle J, Robin P, Rotenberg B, Schlaich A, Siretanu I, Siwy ZS, Stein D, van Roij R, Vidaković-Koch T, Voïtchovsky K, Yossifon G, Zhang Y. Iontronic dynamics: general discussion. Faraday Discuss 2023; 246:322-355. [PMID: 37755134 DOI: 10.1039/d3fd90032k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
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2
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Abayzeed S, Anwar T, Barnaveli A, Bazant MZ, Bocquet L, Donev A, Dryfe RAW, Faez S, Janardanan A, Jiménez-Ángeles F, Kamsma TM, Kanoufi F, Kornyshev AA, Lemay SG, Levin Y, Marbach S, Montes de Oca J, Robin P, Siwy ZS, Stein D, van Roij R, Vidaković-Koch T, Yossifon G, Zhang Y. Iontronic coupling: general discussion. Faraday Discuss 2023; 246:157-178. [PMID: 37740306 DOI: 10.1039/d3fd90031b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
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3
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Bazant MZ, Bocquet L, Cicoira F, Duarte Sánchez DF, Farrell E, Holm C, Igor S, Janardanan A, Jiménez-Ángeles F, Johnson R, Kamsma TM, Kanoufi F, Kornyshev AA, Lemay SG, Levin Y, Marbach S, Olvera de la Cruz M, Perkin S, Pireddu G, Robin P, Rotenberg B, Schlaich A, Siwy ZS, Stein D, Thorneywork A, Valtiner M, van Roij R, Yossifon G, Zhang Y. Iontronics under confinement: general discussion. Faraday Discuss 2023; 246:592-617. [PMID: 37772440 DOI: 10.1039/d3fd90034g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
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4
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Aarts M, Abayzeed S, Barnaveli A, Bocquet L, Dryfe RAW, Duleba D, Faez S, Fung YKC, Holm C, Janardanan A, Jiménez-Ángeles F, Johnson R, Kanoufi F, Levin Y, Marbach S, Marchioro A, Mugele F, Olvera de la Cruz M, Pennathur S, Perkin S, Pireddu G, Robin P, Rotenberg B, Siretanu I, Siwy ZS, Stein D, Ton J, Valtiner M, van Roij R, Voïtchovsky K, Yossifon G, Zhang Z. Iontronic microscopy: general discussion. Faraday Discuss 2023; 246:466-486. [PMID: 37740315 DOI: 10.1039/d3fd90033a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
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5
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Hoang Ngoc Minh T, Rotenberg B, Marbach S. Ionic fluctuations in finite volumes: fractional noise and hyperuniformity. Faraday Discuss 2023; 246:225-250. [PMID: 37565454 DOI: 10.1039/d3fd00031a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Observing finite regions of a bigger system is a common aim, from microscopy to molecular simulations. In the latter especially, there is ongoing interest in predicting thermodynamic properties from tracking fluctuations in finite observation volumes. However, kinetic properties have received little attention, especially not in ionic solutions, where electrostatic interactions play a decisive role. Here, we probe ionic fluctuations in finite volumes with Brownian dynamics and build an analytical framework that reproduces our simulation results and is broadly applicable to other systems with pairwise interactions. Particle number and charge correlations exhibit a rich phenomenology with time, characterized by a diversity of timescales. The noise spectrum of both quantities decays as 1/f3/2, where f is the frequency. This signature of fractional noise shows the universality of 1/f3/2 scalings when observing diffusing particles in finite domains. The hyperuniform behaviour of charge fluctuations, namely that correlations scale with the area of the observation volume, is preserved in time. Correlations even become proportional to the box perimeter at sufficiently long times. Our results pave the way to understand fluctuations in more complex systems, from nanopores to single-particle electrochemistry.
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Affiliation(s)
- Thê Hoang Ngoc Minh
- Sorbonne Université, CNRS, Physicochimie des Électrolytes et Nanosystèmes Interfaciaux, F-75005 Paris, France
| | - Benjamin Rotenberg
- Sorbonne Université, CNRS, Physicochimie des Électrolytes et Nanosystèmes Interfaciaux, F-75005 Paris, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, 80039 Amiens Cedex, France
| | - Sophie Marbach
- Sorbonne Université, CNRS, Physicochimie des Électrolytes et Nanosystèmes Interfaciaux, F-75005 Paris, France
- Courant Institute of Mathematical Sciences, New York University, NY, 10012, USA.
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6
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Marbach S, Miles CE. Coarse-grained dynamics of transiently bound fast linkers. J Chem Phys 2023; 158:2893955. [PMID: 37265213 DOI: 10.1063/5.0139036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/28/2023] [Indexed: 06/03/2023] Open
Abstract
Transient bonds between fast linkers and slower particles are widespread in physical and biological systems. Despite their diverse structure and function, a commonality is that the linkers diffuse on timescales much faster compared to the overall motion of the particles they bind to. This limits numerical and theoretical approaches that need to resolve these diverse timescales with high accuracy. Many models, therefore, resort to effective, yet ad hoc, dynamics, where linker motion is only accounted for when bound. This paper provides a mathematical justification for such coarse-grained dynamics that preserves detailed balance at equilibrium. Our derivation is based on multiscale averaging techniques and is broadly applicable. We verify our results with simulations on a minimal model of fast linker binding to a slow particle. We show how our framework can be applied to various systems, including those with multiple linkers, stiffening linkers upon binding, or slip bonds with force-dependent unbinding. Importantly, the preservation of detailed balance only sets the ratio of the binding to the unbinding rates, but it does not constrain the detailed expression of binding kinetics. We conclude by discussing how various choices of binding kinetics may affect macroscopic dynamics.
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Affiliation(s)
- Sophie Marbach
- CNRS, Sorbonne Université, Physicochimie des Electrolytes et Nanosystèmes Interfaciaux, F-75005 Paris, France
- Courant Institute of Mathematical Sciences, New York University, New York, New York 10012, USA
| | - Christopher E Miles
- Department of Mathematics, University of California, Irvine, Irvine 92697, USA
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Marbach S, Ziethen N, Bastin L, Bäuerle FK, Alim K. Vein fate determined by flow-based but time-delayed integration of network architecture. eLife 2023; 12:78100. [PMID: 36916885 DOI: 10.7554/elife.78100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 03/13/2023] [Indexed: 03/16/2023] Open
Abstract
Veins in vascular networks, such as in blood vasculature or leaf networks, continuously reorganize, grow or shrink, to minimize energy dissipation. Flow shear stress on vein walls has been set forth as the local driver for a vein's continuous adaptation. Yet, shear feedback alone cannot account for the observed diversity of vein dynamics - a puzzle made harder by scarce spatiotemporal data. Here, we resolve network-wide vein dynamics and shear rate during spontaneous reorganization in the prototypical vascular networks of Physarum polycephalum. Our experiments reveal a plethora of vein dynamics (stable, growing, shrinking) where the role of shear is ambiguous. Quantitative analysis of our data reveals that (a) shear rate indeed feeds back on vein radius, yet, with a time delay of 1-3 min. Further, we reconcile the experimentally observed disparate vein fates by developing a model for vein adaptation within a network and accounting for the observed time delay. The model reveals that (b) vein fate is determined by parameters - local pressure or relative vein resistance - which integrate the entire network's architecture, as they result from global conservation of fluid volume. Finally, we observe avalanches of network reorganization events that cause entire clusters of veins to vanish. Such avalanches are consistent with network architecture integrating parameters governing vein fate as vein connections continuously change. As the network architecture integrating parameters intrinsically arise from laminar fluid flow in veins, we expect our findings to play a role across ow-based vascular networks.
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Affiliation(s)
- Sophie Marbach
- Courant Institute of Mathematical Sciences, New York University, New York, United States
| | - Noah Ziethen
- Max Planck Institute for Dynamics and Self-Organization, Goettingen, Germany
| | - Leonie Bastin
- Max Planck Institute for Dynamics and Self-Organization, Goettingen, Germany
| | - Felix K Bäuerle
- Max Planck Institute for Dynamics and Self-Organization, Goettingen, Germany
| | - Karen Alim
- Department of Bioscience, Technical University of Munich, Garching, Germany
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Marbach S, Holmes-Cerfon M. Mass Changes the Diffusion Coefficient of Particles with Ligand-Receptor Contacts in the Overdamped Limit. Phys Rev Lett 2022; 129:048003. [PMID: 35939031 DOI: 10.1103/physrevlett.129.048003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 03/29/2022] [Accepted: 06/22/2022] [Indexed: 06/15/2023]
Abstract
Inertia does not generally affect the long-time diffusion of passive overdamped particles in fluids. Yet a model starting from the Langevin equation predicts a surprising property of particles coated with ligands that bind reversibly to surface receptors: heavy particles diffuse more slowly than light ones of the same size. We show this by simulation and by deriving an analytic formula for the mass-dependent diffusion coefficient in the overdamped limit. We estimate the magnitude of this effect for a range of biophysical ligand-receptor systems, and find it is potentially observable for tailored micronscale DNA-coated colloids.
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Affiliation(s)
- Sophie Marbach
- Courant Institute of Mathematical Sciences, New York University, New York 10012, USA
- CNRS, Sorbonne Université, Physicochimie des Electrolytes et Nanosystèmes Interfaciaux, F-75005 Paris, France
| | - Miranda Holmes-Cerfon
- Courant Institute of Mathematical Sciences, New York University, New York 10012, USA
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9
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Marbach S, Zheng JA, Holmes-Cerfon M. Correction: The nanocaterpillar's random walk: diffusion with ligand-receptor contacts. Soft Matter 2022; 18:4030. [PMID: 35532151 DOI: 10.1039/d2sm90058k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Correction for 'The nanocaterpillar's random walk: diffusion with ligand-receptor contacts' by Sophie Marbach et al., Soft Matter, 2022, 18, 3130-3146, DOI: https://doi.org/10.1039/D1SM01544C.
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Affiliation(s)
- Sophie Marbach
- Courant Institute of Mathematical Sciences, New York University, NY, 10012, USA.
- CNRS, Sorbonne Université, Physicochimie des Electrolytes et Nanosystèmes Interfaciaux, F-75005 Paris, France
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10
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Cui F, Marbach S, Zheng JA, Holmes-Cerfon M, Pine DJ. Comprehensive view of microscopic interactions between DNA-coated colloids. Nat Commun 2022; 13:2304. [PMID: 35484104 PMCID: PMC9051097 DOI: 10.1038/s41467-022-29853-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 04/04/2022] [Indexed: 11/23/2022] Open
Abstract
The self-assembly of DNA-coated colloids into highly-ordered structures offers great promise for advanced optical materials. However, control of disorder, defects, melting, and crystal growth is hindered by the lack of a microscopic understanding of DNA-mediated colloidal interactions. Here we use total internal reflection microscopy to measure in situ the interaction potential between DNA-coated colloids with nanometer resolution and the macroscopic melting behavior. The range and strength of the interaction are measured and linked to key material design parameters, including DNA sequence, polymer length, grafting density, and complementary fraction. We present a first-principles model that screens and combines existing theories into one coherent framework and quantitatively reproduces our experimental data without fitting parameters over a wide range of DNA ligand designs. Our theory identifies a subtle competition between DNA binding and steric repulsion and accurately predicts adhesion and melting at a molecular level. Combining experimental and theoretical results, our work provides a quantitative and predictive approach for guiding material design with DNA-nanotechnology and can be further extended to a diversity of colloidal and biological systems. A quantitative prediction of DNA-mediated interactions between colloids is crucial to the design of colloidal structures for optical applications. Cui et al. measure the interaction potential with nanometer resolution and propose a theory to accurately predict adhesion and melting at a molecular level.
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Affiliation(s)
- Fan Cui
- Department of Physics, New York University, New York, NY, USA
| | - Sophie Marbach
- Courant Institute of Mathematical Sciences, New York University, New York, NY, USA.,CNRS, Sorbonne Université, Physicochimie des Electrolytes et Nanosystèmes, Interfaciaux, F-75005, Paris, France
| | | | | | - David J Pine
- Department of Physics, New York University, New York, NY, USA. .,Department of Chemical & Biomolecular Engineering, New York University, New York, NY, USA.
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Abstract
Particles with ligand-receptor contacts bind and unbind fluctuating "legs" to surfaces, whose fluctuations cause the particle to diffuse. Quantifying the diffusion of such "nanoscale caterpillars" is a challenge, since binding events often occur on very short time and length scales. Here we derive an analytical formula, validated by simulations, for the long time translational diffusion coefficient of an overdamped nanocaterpillar, under a range of modeling assumptions. We demonstrate that the effective diffusion coefficient, which depends on the microscopic parameters governing the legs, can be orders of magnitude smaller than the background diffusion coefficient. Furthermore it varies rapidly with temperature, and reproduces the striking variations seen in existing data and our own measurements of the diffusion of DNA-coated colloids. Our model gives insight into the mechanism of motion, and allows us to ask: when does a nanocaterpillar prefer to move by sliding, where one leg is always linked to the surface, and when does it prefer to move by hopping, which requires all legs to unbind simultaneously? We compare a range of systems (viruses, molecular motors, white blood cells, protein cargos in the nuclear pore complex, bacteria such as Escherichia coli, and DNA-coated colloids) and present guidelines to control the mode of motion for materials design.
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Affiliation(s)
- Sophie Marbach
- Courant Institute of Mathematical Sciences, New York University, NY, 10012, USA.
- CNRS, Sorbonne Université, Physicochimie des Electrolytes et Nanosystèmes Interfaciaux, F-75005 Paris, France
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12
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Abstract
Fluctuations affect nanoporous transport in complex and intricate ways, making optimization of the signal-to-noise ratio in artificial designs challenging. Here, we focus on the simplest nanopore system, where non-interacting particles diffuse through a pore separating reservoirs. We find that the concentration difference between both sides (akin to the osmotic pressure drop) exhibits fractional noise in time t with mean square average that grows as t1/2. This originates from the diffusive exchange of particles from one region to another. We fully rationalize this effect, with particle simulations and analytic solutions. We further infer the parameters (pore radius and pore thickness) that control this exotic behavior. As a consequence, we show that the number of particles within the pore also exhibits fractional noise. Such fractional noise is responsible for noise spectral density scaling as 1/f3/2 with frequency f, and we quantify its amplitude. Our theoretical approach is applicable to more complex nanoporous systems (for example, with adsorption within the pore) and drastically simplifies both particle simulations and analytic calculus.
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Affiliation(s)
- S Marbach
- Courant Institute for Mathematical Sciences, New York University, New York, 10012, USA and CNRS, Sorbonne Université, Physicochimie des Electrolytes et Nanosystèmes Interfaciaux, F-75005 Paris, France
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13
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Abstract
Electro- and diffusio- phoresis of particles correspond respectively to the transport of particles under electric field and solute concentration gradients. Such interfacial transport phenomena take their origin in a diffuse layer close to the particle surface, and the motion of the particle is force-free. In the case of electrophoresis, it is further expected that the stress acting on the moving particle vanishes locally as a consequence of local electroneutrality. But the argument does not apply to diffusiophoresis, which takes its origin in solute concentration gradients. In this paper we investigate further the local and global force balance on a particle undergoing diffusiophoresis. We calculate the local tension applied on the particle surface and show that, counter-intuitively, the local force on the particle does not vanish for diffusiophoresis, in spite of the global force being zero as expected. Incidentally, our description allows to clarify the osmotic balance in diffusiophoresis, which has been a source of debates in the recent years. We explore various cases, including hard and soft interactions, as well as porous particles, and provide analytic predictions for the local force balance in these various systems. The existence of local stresses may induce deformation of soft particles undergoing diffusiophoresis, hence suggesting applications in terms of particle separation based on capillary diffusiophoresis.
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Affiliation(s)
- S. Marbach
- Ecole Normale Supérieure, PSL Research University, CNRS, 24 rue Lhomond, Paris, France
- Courant Institute of Mathematical Sciences, NYU, 251 Mercer Street, New York, NY, USA
| | - H. Yoshida
- Ecole Normale Supérieure, PSL Research University, CNRS, 24 rue Lhomond, Paris, France
- Toyota Central R&D Labs., Inc., Bunkyo-ku, Tokyo 112-0004, Japan
| | - L. Bocquet
- Ecole Normale Supérieure, PSL Research University, CNRS, 24 rue Lhomond, Paris, France
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Abstract
To overcome the traditional paradigm of filtration, where separation is essentially performed upon steric sieving principles, we explore the concept of dynamic osmosis through active membranes. A partially permeable membrane presents a time-tuneable feature that changes the effective pore interaction with the solute and thus actively changes permeability with time. In general, we find that slow flickering frequencies effectively decrease the osmotic pressure and large flickering frequencies do not change it. In the presence of an asymmetric membrane, we find a resonant frequency where pumping of the solute is performed and can be analyzed in terms of ratchet transport. We discuss and highlight the properties of this resonant osmotic transport. Furthermore, we show that dynamic osmosis allows us to pump the solute at the nanoscale using less energy than reverse osmosis. This opens new possibilities to build advanced filtration devices and design artificial ionic machinery.
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Affiliation(s)
- Sophie Marbach
- Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, F-75005 Paris, France
| | - Nikita Kavokine
- Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, F-75005 Paris, France
| | - Lydéric Bocquet
- Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, F-75005 Paris, France
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15
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Kavokine N, Marbach S, Siria A, Bocquet L. Ionic Coulomb blockade as a fractional Wien effect. Nat Nanotechnol 2019; 14:573-578. [PMID: 30962547 DOI: 10.1038/s41565-019-0425-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 03/07/2019] [Indexed: 06/09/2023]
Abstract
Recent advances in nanofluidics have allowed the exploration of ion transport down to molecular-scale confinement, yet artificial porins are still far from reaching the advanced functionalities of biological ion machinery. Achieving single ion transport that is tunable by an external gate-the ionic analogue of electronic Coulomb blockade-would open new avenues in this quest. However, an understanding of ionic Coulomb blockade beyond the electronic analogy is still lacking. Here, we show that the many-body dynamics of ions in a charged nanochannel result in quantized and strongly nonlinear ionic transport, in full agreement with molecular simulations. We find that ionic Coulomb blockade occurs when, upon sufficient confinement, oppositely charged ions form 'Bjerrum pairs', and the conduction proceeds through a mechanism reminiscent of Onsager's Wien effect. Our findings open the way to novel nanofluidic functionalities, such as an ion pump based on ionic Coulomb blockade, inspired by its electronic counterpart.
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Affiliation(s)
- Nikita Kavokine
- Laboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, Paris, France
| | - Sophie Marbach
- Laboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, Paris, France
| | - Alessandro Siria
- Laboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, Paris, France
| | - Lydéric Bocquet
- Laboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, Paris, France.
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Abstract
Osmosis is a universal phenomenon occurring in a broad variety of processes and fields. It is the archetype of entropic forces, both trivial in its fundamental expression - the van 't Hoff perfect gas law - and highly subtle in its physical roots. While osmosis is intimately linked with transport across membranes, it also manifests itself as an interfacial transport phenomenon: the so-called diffusio-osmosis and -phoresis, whose consequences are presently actively explored for example for the manipulation of colloidal suspensions or the development of active colloidal swimmers. Here we give a global and unifying view of the phenomenon of osmosis and its consequences with a multi-disciplinary perspective. Pushing the fundamental understanding of osmosis allows one to propose new perspectives for different fields and we highlight a number of examples along these lines, for example introducing the concepts of osmotic diodes, active separation and far from equilibrium osmosis, raising in turn fundamental questions in the thermodynamics of separation. The applications of osmosis are also obviously considerable and span very diverse fields. Here we discuss a selection of phenomena and applications where osmosis shows great promises: osmotic phenomena in membrane science (with recent developments in separation, desalination, reverse osmosis for water purification thanks in particular to the emergence of new nanomaterials); applications in biology and health (in particular discussing the kidney filtration process); osmosis and energy harvesting (in particular, osmotic power and blue energy as well as capacitive mixing); applications in detergency and cleaning, as well as for oil recovery in porous media.
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Affiliation(s)
- Sophie Marbach
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, Paris, France.
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17
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Ferrannini E, Frias JP, Guja C, Hardy E, Öhman P, Jabbour S, DeFronzo R, Marbach S. Duration-8-Studie: Mechanismen der glykämischen Kontrolle unter Depot-Exenatide+Dapagliflozin im Vergleich zu den Einzelsubstanzen. DIABETOL STOFFWECHS 2018. [DOI: 10.1055/s-0038-1641910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- E Ferrannini
- CNR Institute of Clinical Physiology, Pisa, Italy
| | - JP Frias
- National Research Institute, Los Angeles, United States
| | - C Guja
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - E Hardy
- AstraZeneca, Gaithersburg, United States
| | - P Öhman
- AstraZeneca, Gaithersburg, United States
| | - S Jabbour
- Thomas Jefferson University, Philadelphia, United States
| | - R DeFronzo
- Diabetes Division, University of Texas Health Science Center, San Antonio, United States
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18
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Affiliation(s)
- Sophie Marbach
- Laboratoire de Physique Statistique, UMR CNRS 8550, Ecole Normale Supérieure, PSL Research University, 24 Rue Lhomond, 75005 Paris, France
| | - Lydéric Bocquet
- Laboratoire de Physique Statistique, UMR CNRS 8550, Ecole Normale Supérieure, PSL Research University, 24 Rue Lhomond, 75005 Paris, France
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19
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Yoshida H, Marbach S, Bocquet L. Osmotic and diffusio-osmotic flow generation at high solute concentration. II. Molecular dynamics simulations. J Chem Phys 2017; 146:194702. [DOI: 10.1063/1.4981794] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hiroaki Yoshida
- LPS, UMR CNRS 8550, Ecole Normale Supérieure, 24 Rue Lhomond, 75005 Paris, France
- Toyota Central R&D Labs., Inc.,
Nagakute, Aichi 480-1192, Japan
| | - Sophie Marbach
- LPS, UMR CNRS 8550, Ecole Normale Supérieure, 24 Rue Lhomond, 75005 Paris, France
| | - Lydéric Bocquet
- LPS, UMR CNRS 8550, Ecole Normale Supérieure, 24 Rue Lhomond, 75005 Paris, France
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20
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Marbach S, Yoshida H, Bocquet L. Osmotic and diffusio-osmotic flow generation at high solute concentration. I. Mechanical approaches. J Chem Phys 2017; 146:194701. [DOI: 10.1063/1.4982221] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Sophie Marbach
- LPS, UMR CNRS 8550, Ecole Normale Supérieure, PSL Research University, 24 Rue Lhomond, 75005 Paris, France
| | - Hiroaki Yoshida
- LPS, UMR CNRS 8550, Ecole Normale Supérieure, PSL Research University, 24 Rue Lhomond, 75005 Paris, France
- Toyota Central R&D Labs., Inc., Nagakute, Aichi 480-1192, Japan
| | - Lydéric Bocquet
- LPS, UMR CNRS 8550, Ecole Normale Supérieure, PSL Research University, 24 Rue Lhomond, 75005 Paris, France
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21
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Qin L, Orme M, Varol N, Kalkan A, Erdmann M, Bell K, Mukherjee J, Marbach S. Kombination von DPP-4-/SGLT-2-Inhibitoren als Add-on zu Metformin bei Patienten mit Typ-2-Diabetes: Vergleich mit OAD, GLP-1RA und Basalinsulin. DIABETOL STOFFWECHS 2017. [DOI: 10.1055/s-0037-1601751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- L Qin
- AstraZeneca, Gaithersburg, United States
| | - M Orme
- ICERA Consulting Ltd, Swindon, United States
| | - N Varol
- AstraZeneca, Cambridge, United Kingdom
| | - A Kalkan
- AstraZeneca, Söderttalje, Sweden
| | | | - K Bell
- AstraZeneca, Fort Washington, United States
| | - J Mukherjee
- Bristol-Myers Squibb, Wallingford, United States
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22
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Marbach S, Alim K, Andrew N, Pringle A, Brenner MP. Pruning to Increase Taylor Dispersion in Physarum polycephalum Networks. Phys Rev Lett 2016; 117:178103. [PMID: 27824465 DOI: 10.1103/physrevlett.117.178103] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Indexed: 06/06/2023]
Abstract
How do the topology and geometry of a tubular network affect the spread of particles within fluid flows? We investigate patterns of effective dispersion in the hierarchical, biological transport network formed by Physarum polycephalum. We demonstrate that a change in topology-pruning in the foraging state-causes a large increase in effective dispersion throughout the network. By comparison, changes in the hierarchy of tube radii result in smaller and more localized differences. Pruned networks capitalize on Taylor dispersion to increase the dispersion capability.
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Affiliation(s)
- Sophie Marbach
- Harvard John A. Paulson School of Engineering and Applied Sciences and Kavli Institute for Bionano Science and Technology, Harvard University, Cambridge, Massachusetts 02138, USA
- International Centre for Fundamental Physics, École Normale Supérieure, PSL Research University, 75005 Paris, France
| | - Karen Alim
- Harvard John A. Paulson School of Engineering and Applied Sciences and Kavli Institute for Bionano Science and Technology, Harvard University, Cambridge, Massachusetts 02138, USA
- Max Planck Institute for Dynamics and Self-Organization, 37077 Göttingen, Germany
| | - Natalie Andrew
- Harvard John A. Paulson School of Engineering and Applied Sciences and Kavli Institute for Bionano Science and Technology, Harvard University, Cambridge, Massachusetts 02138, USA
- Max Planck Institute for Dynamics and Self-Organization, 37077 Göttingen, Germany
| | - Anne Pringle
- Departments of Botany and Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Michael P Brenner
- Harvard John A. Paulson School of Engineering and Applied Sciences and Kavli Institute for Bionano Science and Technology, Harvard University, Cambridge, Massachusetts 02138, USA
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23
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Kosiborod M, Gause-Nilsson I, Sugg J, Sonesson C, Johnsson E, Marbach S. Wirksamkeit und Verträglichkeit von Dapagliflozin bei Patienten mit Typ-2-Diabetes und begleitender Herzinsuffizienz. DIABETOL STOFFWECHS 2016. [DOI: 10.1055/s-0036-1580880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Marbach S, Godeau AL, Riveline D, Joanny JF, Prost J. Theoretical study of actin layers attachment and separation. Eur Phys J E Soft Matter 2015; 38:122. [PMID: 26590152 DOI: 10.1140/epje/i2015-15122-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 11/03/2015] [Indexed: 06/05/2023]
Abstract
We use the theory of active gels to study theoretically the merging and separation of two actin dense layers akin to cortical layers of animal cells. The layers bind at a distance equal to twice the thickness of a free layer, thus forming a single dense layer, similar in this sense to a lamellipodium. When that unique layer is stretched apart, it is resilient to break apart up to a critical length larger than twice the thickness of a free layer. We show that this behavior can result from the high contractile properties of the actomyosin gel due to the activity of myosin molecular motors. Furthermore, we establish that the stability of the stretched single layer is highly dependent on the properties of the gel. Indeed, the nematic order of the actin filaments along the polymerizing membranes is a destabilizing factor.
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Affiliation(s)
- Sophie Marbach
- Physico-Chimie Curie, (Institut Curie, Cnrs UMR 168, UPMC), Institut Curie Centre de Recherche, 26, rue de l'Ulm, 75005, Paris, France.
- ICFP, Physics Department, Ecole Normale Supérieure de Paris, 24 rue Lhomond, 75005, Paris, France.
| | - Amélie Luise Godeau
- Laboratory of Cell Physics, Institut de Science et d'Ingénierie Supramoléculaires, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Université de Strasbourg and Centre National de la Recherche Scientifique UMR 7006, Strasbourg, France
- Development and Stem Cells Program, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique UMR 7104, Institut National de la Santé et de la Recherche Médicale (U964), Université de Strasbourg, Illkirch, France
| | - Daniel Riveline
- Laboratory of Cell Physics, Institut de Science et d'Ingénierie Supramoléculaires, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Université de Strasbourg and Centre National de la Recherche Scientifique UMR 7006, Strasbourg, France
- Development and Stem Cells Program, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique UMR 7104, Institut National de la Santé et de la Recherche Médicale (U964), Université de Strasbourg, Illkirch, France
| | - Jean-François Joanny
- Physico-Chimie Curie, (Institut Curie, Cnrs UMR 168, UPMC), Institut Curie Centre de Recherche, 26, rue de l'Ulm, 75005, Paris, France.
- ESPCI, 10 rue Vauquelin, 75005, Paris, France.
| | - Jacques Prost
- Physico-Chimie Curie, (Institut Curie, Cnrs UMR 168, UPMC), Institut Curie Centre de Recherche, 26, rue de l'Ulm, 75005, Paris, France
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25
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Weber MA, Mansfield TA, List JF, Ptaszynska A, Marbach S. Verträglichkeit von Dapagliflozin bei T2DM-Patienten, deren Hypertonie unter einem Renin-Angiotensin-System-Blocker ± einem zweiten Antihypertensivum nicht ausreichend kontrolliert ist. DIABETOL STOFFWECHS 2015. [DOI: 10.1055/s-0035-1549615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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26
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Yavin Y, Mansfield TA, Ptaszynska A, Apanovitch AM, Johnsson KM, Johnsson E, Parikh SJ, List JF, Marbach S. Keine erhöhte Hyperkaliämie-Inzidenz bei Therapie mit dem SGLT-2 Inhibitor Dapagliflozin. DIABETOL STOFFWECHS 2015. [DOI: 10.1055/s-0035-1549753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Basar-Eroglu C, Schmiedt-Fehr C, Marbach S, Brand A, Mathes B. Altered oscillatory alpha and theta networks in schizophrenia. Brain Res 2008; 1235:143-52. [PMID: 18657525 DOI: 10.1016/j.brainres.2008.06.114] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2008] [Accepted: 06/23/2008] [Indexed: 11/30/2022]
Abstract
In the present study we used a simple visual evoked potential and a visual oddball paradigm to investigate alterations in the temporal integration of different frequency components such as alpha and theta oscillations in patients with schizophrenia. We found that neither the amplitude enhancement after stimulus onset nor the intertrial phase coherence was generally reduced in patients, but that the topography of the neural response was altered. While healthy controls elicited their maximum early alpha as well as late theta response over posterior electrode sites, the maximum response in patients was shifted to anterior electrode positions. This result was not found for the late theta response for targets as target processing was accompanied with frontal theta amplitude enhancement in healthy controls as well. The change of the topographical response pattern was mirrored by the intertrial phase coherence in both frequency bands. The findings imply that schizophrenia is related to multiple alterations in oscillatory networks. Even during simple tasks without high cognitive demands dysfunctional mechanisms of temporal and regional coordination appear to be of importance in schizophrenia.
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Affiliation(s)
- C Basar-Eroglu
- University of Bremen, Institute of Psychology and Cognition Research, Grazer Str. 4, D-28359 Bremen, Germany.
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28
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Hechler T, Kosfelder J, Denecke H, Dobe M, Hübner B, Martin A, Menke A, Schroeder S, Marbach S, Zernikow B. Schmerzbezogene Copingstrategien von Kindern und Jugendlichen mit chronischen Schmerzen. Schmerz 2008; 22:442-57. [DOI: 10.1007/s00482-008-0621-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Ebrecht M, Marbach S, Kungel M, Werner C, Marcus R, McQuade R, Modell S. Aripiprazole monotherapy in the treatment of acute bipolar I mania: a randomized, placebo- and lithium-controlled study. Pharmacopsychiatry 2007. [DOI: 10.1055/s-2007-991683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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