104 citations · 472 across the 16 of their papers we have counts for
10 papers · 1 filter
Active flow-driven DNA remodeling generates millimeter-scale mechanical oscillations
Maya Levanon, Noa S. Goldberg, Dvir Cohen +3
In living systems, DNA undergoes continuous and rhythmic mechanical remodeling through condensation, looping, and disentangling to regulate gene expression, segregate chromosomes,…
Environment-stored memory in active nematics and extra-cellular matrix remodeling
Ram M. Adar, Jean-François Joanny
Many active systems display nematic order, while interacting with their environment. In this work, we show theoretically how environment-stored memory acts an effective external fi…
Conductivity of Concentrated Electrolytes
Yael Avni, Ram M. Adar, David Andelman +1
The conductivity of ionic solutions is arguably their most important trait, being widely used in electrochemical, biochemical, and environmental applications. The Debye-Hückel-Onsa…
Permeation Instabilities in Active, Polar Gels
Ram M. Adar, Jean-François Joanny
We present a theory of active, permeating, polar gels, based on a two-fluid model. An active relative force between the gel components creates a steady-state current. We analyze it…
Charge Oscillations in Ionic Liquids: A Microscopic Cluster Model
Yael Avni, Ram M. Adar, David Andelman
In spite of their enormous applications as alternative energy storage devices and lubricants, room temperature ionic liquids (ILs) still pose many challenges from a pure scientific…
Screening length for finite-size ions in concentrated electrolytes
Ram M. Adar, Samuel A. Safran, Haim Diamant +1
The classical Debye-Huckel (DH) theory clearly accounts for the origin of screening in electrolyte solutions and works rather well for dilute electrolyte solutions. While the Debye…
Osmotic pressure between arbitrarily charged surfaces: a revisited approach
Ram M. Adar, David Andelman
The properties of ionic solutions between charged surfaces are often studied within the Poisson-Boltzmann framework, by finding the electrostatic potential profile. For example, th…
Bjerrum Pairs in Ionic Solutions: a Poisson-Boltzmann Approach
Ram M. Adar, Tomer Markovich, David Andelman
Ionic solutions are often regarded as fully dissociated ions dispersed in a polar solvent. While this picture holds for dilute solutions, at higher ionic concentrations, oppositely…
Electrostatics of Patchy Surfaces
Ram M. Adar, David Andelman, Haim Diamant
In the study of colloidal, biological and electrochemical systems, it is customary to treat surfaces, macromolecules and electrodes as homogeneously charged. This simplified approa…
Electrostatic Attraction between Overall Neutral Surfaces
Ram M. Adar, David Andelman, Haim Diamant
Two overall neutral surfaces with positive and negative charged domains ("patches") have been shown in recent experiments to exhibit long-range attraction when immersed in an ionic…