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Nonlinear mechanics of thermoreversibly associating dendrimer glasses: We model the mechanics of associating trivalent dendrimer network glasses
with a focus on their energy dissipation properties. Various combinations of
sticky bond (SB) strength and kinetics are employed. The toughness
(work-to-fracture) of these sys... | cond-mat_soft |
Quenches and crunchs: Does the system explore in aging the same part of
the configuration space explored in equilibrium ?: Numerical studies are providing novel information on the physical processes
associated to physical aging. The process of aging has been shown to consist in
a slow process of explorations of deepe... | cond-mat_soft |
Mechanisms and Rates of Nucleation of Amyloid Fibrils: The classical nucleation theory finds the rate of nucleation proportional to
the monomer concentration raised to the power, which is the `critical nucleaus
size', ${n_c}$. The implicit assumption, that amyloids nucleate in the same
way, has been recently challenged... | cond-mat_soft |
Rotational motion of a droplet induced by interfacial tension: Spontaneous rotation of a droplet induced by the Marangoni flow is analyzed
in a two-dimensional system. The droplet with the small particle which supplies
a surfactant at the interface is considered. We calculated flow field around
the droplet using Stokes... | cond-mat_soft |
Vortex formation in a slowly rotating Bose-Einstein condensate confined
in a harmonic-plus-gaussian laser trap: Motivated by the recent experiment at ENS [ V. Bretin, S. Stock, Y. Seurin
and, J. Dalibard, Phys. Rev. Lett. {\bf 92}, 050403 (2004)], we study a
rotating (non-)interacting atomic Bose-Einstein condensate ... | cond-mat_soft |
Modeling liquid migration in active swollen gel spheres: Liquid migration in active soft solids is a very common phenomenon in Nature
at different scales: from cells to leaves. It can be caused by mechanical as
well as chemical actions. The work focuses on the migration of liquid provoked
by remodeling processes in an ... | cond-mat_soft |
The elasto-/hydro-dynamics of quasicrystals with 12- and 18-fold
symmetries in some soft matters and mathematical solutions: The observation recently of 12-fold quasicrystals in polymers, nanoparticle
mixture and 12-fold and 18-fold quasicrystals in colloidal solutions are
important events for the study of quasicryst... | cond-mat_soft |
Heirarchical and synergistic self-assembly in composites of model
Wormlike micellar-polymers and nanoparticles results in nanostructures with
diverse morphologies: Using Monte Carlo simulations, we investigate the self-assembly of model
nanoparticles inside a matrix of model equilibrium polymers (or matrix of
Worml... | cond-mat_soft |
Single-Trajectory Characterization of Active Swimmers in a Flow: We develop a maximum likelihood method to infer relevant physical properties
of elongated active particles. Using individual trajectories of advected
swimmers as input, we are able to accurately determine their rotational
diffusion coefficients and an eff... | cond-mat_soft |
Efficient equilibration of confined and free-standing films of highly
entangled polymer melts: Equilibration of polymer melts containing highly entangled long polymer
chains in confinement or with free surfaces is a challenge for computer
simulations. We approach this problem by first studying polymer melts based on
... | cond-mat_soft |
Comment on "Layering transition in confined molecular thin films:
Nucleation and growth": When fluid is confined between two molecularly smooth surfaces to a few
molecular diameters, it shows a large enhancement of its viscosity. From
experiments it seems clear that the fluid is squeezed out layer by layer. A
simple ... | cond-mat_soft |
Potential of Mean Force between a Spherical Particle Suspended in a
Nematic Liquid Crystal and a Substrate: We consider a system where a spherical particle is suspended in a nematic
liquid crystal confined between two walls. We calculate the liquid-crystal
mediated potential of mean force between the sphere and a sub... | cond-mat_soft |
Conformational Properties of an Adsorbed Charged Polymer: The behavior of a strongly charged polymer adsorbed on an oppositely charged
surface of low-dielectric constant is formulated by the functional integral
method. By separating the translational, conformational, and fluctuational
degrees of freedom, the scaling be... | cond-mat_soft |
Reversibility and hysteresis of the sharp yielding transition of a
colloidal glass under oscillatory shear: The mechanical response of glasses remains challenging to understand. Recent
results indicate that the oscillatory rheology of soft glasses is accompanied
by a sharp non-equilibrium transition in the microscopi... | cond-mat_soft |
Colloids in Two-Dimensional Active Nematics: Conformal Cogs and
Controllable Spontaneous Rotation: A major challenge in the study of active systems is to harness their
non-equilibrium dynamics into useful work. We address this by showing how to
design colloids with controllable spontaneous propulsion or rotation when... | cond-mat_soft |
Dispersing Nanoparticles in a Polymer Film via Solvent Evaporation: Large scale molecular dynamics simulations are used to study the dispersion
of nanoparticles (NPs) in a polymer film during solvent evaporation. As the
solvent evaporates, a dense polymer-rich skin layer forms at the liquid/vapor
interface, which is ei... | cond-mat_soft |
Mesoscopic theory for inhomogeneous mixtures: Mesoscopic density functional theory for inhomogeneous mixtures of sperical
particles is developed in terms of mesoscopic volume fractions by a systematic
coarse-graining procedure starting form microscopic theory. Approximate
expressions for the correlation functions and f... | cond-mat_soft |
Laminar Flow and Backrind Formation in Molding of Viscoelastic Silicone
Rubber: When a thermoset polymer is cured at elevated temperature in a closed mold,
thermal expansion can produce flaws in the finished product. Those flaws occur
when rising internal pressure pushes the mold open and cured polymer flows out
thro... | cond-mat_soft |
Phase transitions of a tethered membrane model on a torus with intrinsic
curvature: A tethered surface model is investigated by using the canonical Monte Carlo
simulation technique on a torus with an intrinsic curvature. We find that the
model undergoes a first-order phase transition between the smooth phase and the
... | cond-mat_soft |
DNA versus RNA -- which shows higher electronic conduction?: In this study, we compare the charge transport properties of multiple (double
stranded) dsRNA sequences with corresponding dsDNA sequences. Recent studies
have presented a contradictory picture of relative charge transport
efficiencies in A-form DNA:RNA hybri... | cond-mat_soft |
Simple production of cellulose nanofibril microcapsules and the rheology
of their suspensions: Microcapsules are commonly used in applications ranging from therapeutics to
personal care products due to their ability to deliver encapsulated species
through their porous shells. Here, we demonstrate a simple and scalabl... | cond-mat_soft |
1-D Cluster Array at the Three Phase Contact Line in Diluted Colloids
Subjected to A.C. Electric Fields: Colloidal particles provide an efficient mean of building multiple scale
structured materials from colloidal dispersions. In this Brief Report, we
account for experimental evidence on the formation of a colloidal ... | cond-mat_soft |
To grow or to shrink: A tale of two rubber balloons: Two identical rubber balloons are partially inflated with air (to different
extent) and connected by a hose with a valve. It is found that depending on
balloon volumes, when the valve is opened the air will flow either from the
larger (fuller) balloon to the smaller ... | cond-mat_soft |
On the modulational stability of Gross-Pittaevskii type equations in 1+1
dimensions: The modulational stability of the nonlinear Schr{\"o}dinger (NLS) equation is
examined in the cases with linear and quadratic external potential. This study
is motivated by recent experimental studies in the context of matter waves i... | cond-mat_soft |
First-order phase transitions in lattice bilayers of Janus-like
particles: Monte Carlo simulations: The first-order phase transitions in the lattice model of Janus-like
particles confined in slit-like pores are studied. We assume a cubic lattice
with molecules that can freely change their orientation on a lattice sit... | cond-mat_soft |
Out-of-equilibrium interactions and collective locomotion of colloidal
spheres with squirming of nematoelastic multipoles: Many living and artificial systems show a similar emergent behavior and
collective motions on different scales, starting from swarms of bacteria to
synthetic active particles, herds of mammals an... | cond-mat_soft |
Channel Flow of Smectic Films: The hydrodynamics of smectic films at an air-water interface is discussed,
with particular focus on the viscous response of the film under flow normal to
the layers. The corrections to the response functions of the smectic phase,
arising from the coupling between the flow and the smectic ... | cond-mat_soft |
Chiral oily streaks in a smectic-A liquid crystal: The liquid crystal octylcyanobiphenyl (8CB) was doped with the chiral agent
CB15 and spin-coated onto a substrate treated for planar alignment of the
director, resulting in a film of thickness several hundred nm in the smectic-A
phase. In both doped and undoped samples... | cond-mat_soft |
Can pulling cause right- to left-handed structural transitions in
negatively supercoiled DNA double-helix?: The folding angle distribution of stretched and negatively supercoiled DNA
double-helix is investigated based on a theoretical model we proposed earlier
[H. Zhou et al., Phys. Rev. Lett. 82, 4560 (1999)]. It is... | cond-mat_soft |
Anisotropic imbibition on surfaces patterned with polygonal posts: We present and interpret lattice Boltzmann simulations of thick films
spreading on surfaces patterned with polygonal posts. We show that the
mechanism of pinning and depinning differs with the direction of advance, and
demonstrate that this leads to ani... | cond-mat_soft |
Numerical study of the spherically-symmetric Gross-Pitaevskii equation
in two space dimensions: We present a numerical study of the time-dependent and time-independent
Gross-Pitaevskii (GP) equation in two space dimensions, which describes the
Bose-Einstein condensate of trapped bosons at ultralow temperature with bo... | cond-mat_soft |
Skinny emulsions take on granular matter: Our understanding of the structural features of foams and emulsions has
advanced significantly over the last 20 years. However, with a search for
"super-stable" liquid dispersions, foam and emulsion science employs
increasingly complex formulations which create solid-like visco... | cond-mat_soft |
Temperature distribution in a gas-solid fixed bed probed by rapid
magnetic resonance imaging: Controlling the temperature distribution inside catalytic fixed bed reactors
is crucial for yield optimization and process stability. Yet, in situ
temperature measurements with spatial and temporal resolution are still
chall... | cond-mat_soft |
Statistical properties of a granular gas fluidized by turbulent air
wakes: We perform experiments with a granular system that consists of a collection
of identical hollow spheres (ping-pong balls). Particles rest on a horizontal
metallic grid and are confined within a circular region. Fluidization is
achieved by mean... | cond-mat_soft |
Transport of Particles in Liquid Crystals: Colloidal particles in a liquid crystal (LC) behave very differently from
their counterparts in isotropic fluids. Elastic nature of the orientational
order and surface anchoring of the director cause long-range anisotropic
interactions and lead to the phenomenon of levitation.... | cond-mat_soft |
Packing of elastic wires in spherical cavities: We investigate the morphologies and maximum packing density of thin wires
packed into spherical cavities. Using simulations and experiments, we find that
ordered as well as disordered structures emerge, depending on the amount of
internal torsion. We find that the highest... | cond-mat_soft |
Surface creasing of soft elastic continua as a Kosterlitz-Thouless
transition: Harnessing a model from composite materials science, we show how point-like
cusped surface features arise as quasi-particle excitations, termed "ghost
fibers", on the surface of a homogeneous soft elastic material. These
deformations appea... | cond-mat_soft |
Realization of Bose-Einstein condensates in lower dimensions: Bose-Einstein condensates of sodium atoms have been prepared in optical and
magnetic traps in which the energy-level spacing in one or two dimensions
exceeds the interaction energy between atoms, realizing condensates of lower
dimensionality. The cross-over ... | cond-mat_soft |
Pattern formation in two-dimensional hard-core/soft-shell systems with
variable soft shell profiles: Hard-core/soft shell (HCSS) particles have been shown to self-assemble into a
remarkably rich variety of structures under compression due to the simple
interplay between the hard-core and soft-shoulder length scales i... | cond-mat_soft |
Template Dissolution Interfacial Patterning of Single Colloids for
Nanoelectrochemistry and Nanosensing: Deterministic positioning and assembly of colloidal nanoparticles (NPs) onto
substrates is a core requirement and a promising alternative to top down
lithography to create functional nanostructures and nanodevices... | cond-mat_soft |
Dynamic Elastic Moduli in Magnetic Gels: Normal Modes and Linear
Response: In the perspective of developing smart hybrid materials with customized
features, ferrogels and magnetorheological elastomers allow a synergy of
elasticity and magnetism. The interplay between elastic and magnetic properties
gives rise to a un... | cond-mat_soft |
Dilute polymer solutions under shear flow: comprehensive qualitative
analysis using a bead-spring chain model with a FENE-Fraenkel spring: Although the non-equilibrium behaviour of polymer solutions is generally well
understood, particularly in extensional flow, there remain several unanswered
questions for dilute so... | cond-mat_soft |
The effect of an exterior electric field on the instability of
dielectric plates: We investigate the theoretical nonlinear response, Hessian stability, and
possible wrinkling behaviour of a voltage-activated dielectric plate immersed
in a tank filled with silicone oil. Fixed rigid electrodes are placed on the
top and... | cond-mat_soft |
A sheet on deformable sphere: "wrinklogami" patterns suppress
curvature-induced delamination: The adhesion of a stiff film onto a curved substrate often generates elastic
stresses in the film that eventually give rise to its delamination. Here we
predict that delamination of very thin films can be dramatically suppre... | cond-mat_soft |
Temperature of maximum density and excess properties of short-chain
alcohol aqueous solutions: A simplified model simulation study: We perform an extensive computational study of binary mixtures of water and
short-chain alcohols resorting to two-scale potential models to account for the
singularities of hydrogen bond... | cond-mat_soft |
Local structural features elucidate crystallization of complex
structures: Complex crystal structures are composed of multiple local environments, and
how this type of order emerges spontaneously during crystal growth has yet to
be fully understood. We study crystal growth across various structures and
along differen... | cond-mat_soft |
Bubble Statistics and Dynamics in Double-Stranded DNA: The dynamical properties of double-stranded DNA are studied in the framework
of the Peyrard-Bishop-Dauxois model using Langevin dynamics. Our simulations
are analyzed in terms of two probability functions describing coherently
localized separations ("bubbles") of t... | cond-mat_soft |
Thermalization of plastic flow versus stationarity of thermomechanical
equilibrium in SGR theory: We discuss issues related to thermalization of plastic flow in the context of
soft glassy rheology (SGR) theory. An apparent problem with the theory in its
current form is that the stationarity of thermomechanical equili... | cond-mat_soft |
Nucleation of stable cylinders from a metastable lamellar phase in a
diblock copolymer melt: The nucleation of a droplet of stable cylinder phase from a metastable
lamellar phase is examined within the single-mode approximation to the
Brazovskii model for diblock copolymer melts. By employing a variational ansatz
for... | cond-mat_soft |
The Origin of Persistent Shear Stress in Supercooled Liquids: We show that the long time tail of the shear stress autocorrelation, whose
growth at large supercooling is responsible for the apparent divergence of the
shear viscosity, is a direct result of a residual shear stress in the
structures associated with the loc... | cond-mat_soft |
Active Viscoelastic Matter: from Bacterial Drag Reduction to Turbulent
Solids: A paradigm for internally driven matter is the active nematic liquid crystal,
whereby the equations of a conventional nematic are supplemented by a minimal
active stress that violates time reversal symmetry. In practice, active fluids
may ... | cond-mat_soft |
Swimming statistics of cargo-loaded single bacteria: Burgeoning interest in the area of bacteria-powered micro robotic systems
prompted us to study the dynamics of cargo transport by single bacteria. In
this paper, we have studied the swimming behaviour of oil-droplets attached as
a cargo to the cell bodies of single b... | cond-mat_soft |
Liquid-Gas phase transition in Bose-Einstein Condensates with time
evolution: We study the effects of a repulsive three-body interaction on a system of
trapped ultra-cold atoms in Bose-Einstein condensed state. The stationary
solutions of the corresponding $s-$wave non-linear Schr\"{o}dinger equation
suggest a scenar... | cond-mat_soft |
An adaptive hierarchical domain decomposition method for parallel
contact dynamics simulations of granular materials: A fully parallel version of the contact dynamics (CD) method is presented in
this paper. For large enough systems, 100% efficiency has been demonstrated for
up to 256 processors using a hierarchical d... | cond-mat_soft |
Novel self-assembled morphologies from isotropic interactions: We present results from particle simulations with isotropic medium range
interactions in two dimensions. At low temperature novel types of aggregated
structures appear. We show that these structures can be explained by
spontaneous symmetry breaking in analy... | cond-mat_soft |
Interaction between Nearly Hard Colloidal Spheres at an Oil-Water
Interface: We show that the interaction potential between sterically stabilized, nearly
hard-sphere [poly(methylmethacrylate)-poly(lauryl methacrylate) (PMMA-PLMA)]
colloids at a water-oil interface has a negligible unscreened-dipole
contribution, sugg... | cond-mat_soft |
Complex Memory Formation in Frictional Granular Media: Using numerical simulations it is shown that a jammed, random pack of soft
frictional grains can store an arbitrary waveform that is applied as a small
time-dependent shear while the system is slowly compressed. When the system is
decompressed at a later time, an a... | cond-mat_soft |
Smectic-A and Smectic-C Phases and Phase Transitions in Liquid
Crystal-Aerosil Gels: High-resolution X-ray scattering studies of the nonpolar thermotropic liquid
crystal 4-n-pentylphenylthiol-4'-n-octyloxybenzoate (\bar{8}S5) in aerosil gel
nano-networks reveal that the aerosil-induced disorder significantly alters
b... | cond-mat_soft |
Experimental verification of Arcsine laws in mesoscopic non-equilibrium
and active systems: A large number of processes in the mesoscopic world occur out of equilibrium,
where the time course of a system evolution becomes immensely important since
it is driven principally by dissipative effects. Non-equilibrium stead... | cond-mat_soft |
Sensitivity of the stress response function to packing preparation: A granular assembly composed of a collection of identical grains may pack
under different microscopic configurations with microscopic features that are
sensitive to the preparation history. A given configuration may also change in
response to external ... | cond-mat_soft |
Bending and Twisting Elasticity: a Revised Marko-Siggia Model on DNA
Chirality: A revised Marko-Siggia elastic model for DNA double helix [Macromolecules 27,
981 (1994)] is proposed, which includes the WLC bending energy and a new chiral
twisting energy term. It is predicted that the mean helical repeat length (HRL)
... | cond-mat_soft |
Dynamical properties of densely packed confined hard-sphere fluids: Numerical solutions of the mode-coupling theory (MCT) equations for a
hard-sphere fluid confined between two parallel hard walls are elaborated. The
governing equations feature multiple parallel relaxation channels which
significantly complicate their ... | cond-mat_soft |
The effect of chain polydispersity on the elasticity of disordered
polymer networks: Due to their unique structural and mechanical properties,
randomly-crosslinked polymer networks play an important role in many different
fields, ranging from cellular biology to industrial processes. In order to
elucidate how these p... | cond-mat_soft |
Mechanics and force transmission in soft composites of rods in elastic
gels: We report detailed theoretical investigations of the micro-mechanics and bulk
elastic properties of composites consisting of randomly distributed stiff
fibers embedded in an elastic matrix in two and three dimensions. Recent
experiments publ... | cond-mat_soft |
Dynamic correlations in Brownian many-body systems: For classical Brownian systems driven out of equilibrium we derive
inhomogeneous two-time correlation functions from functional differentiation of
the one-body density and current with respect to external fields. In order to
allow for appropriate freedom upon building... | cond-mat_soft |
Localization transition of random copolymers at interfaces: We consider adsorption of random copolymer chains onto an interface within
the model of Garel et al. Europhysics Letters 8, 9 (1989). By using the replica
method the adsorption of the copolymer at the interface is mapped onto the
problem of finding the ground ... | cond-mat_soft |
Determining the Anchoring Strength of a Capillary Using Topological
Defects: We consider a smectic-A* in a capillary with surface anchoring that favors
parallel alignment. If the bulk phase of the smectic is the standard
twist-grain-boundary phase of chiral smectics, then there will be a critical
radius below which t... | cond-mat_soft |
Shapes enhancing the propulsion of multiflagellated helical
microswimmers: In this paper we are interested in optimizing the shape of multi-flagellated
helical microswimmers. Mimicking the propagation of helical waves along the
flagella, they self-propel by rotating their tails. The swimmer's dynamics is
computed usi... | cond-mat_soft |
Surface relaxation of lyotropic lamellar phases: We study the relaxation modes of an interface between a lyotropic lamellar
phase and a gas or a simple liquid. The response is found to be qualitatively
different from those of both simple liquids and single-component smectic-A
liquid crystals. At low rates it is governe... | cond-mat_soft |
Thermal fluctuations of an interface near a contact line: The effect of thermal fluctuations near a contact line of a liquid interface
partially wetting an impenetrable substrate is studied analytically and
numerically. Promoting both the interface profile and the contact line position
to random variables, we explore t... | cond-mat_soft |
Dancing disclinations in confined active nematics: The spontaneous emergence of collective flows is a generic property of active
fluids and often leads to chaotic flow patterns characterised by swirls, jets,
and topological disclinations in their orientation field. However, the ability
to achieve structured flows and o... | cond-mat_soft |
Neural Network Model for Structure Factor of Polymer Systems: As an important physical quantity to understand the internal structure of
polymer chains, the structure factor is being studied both in theory and
experiment. Theoretically, the structure factor of Gaussian chains have been
solved analytically, but for worml... | cond-mat_soft |
A molecular dynamics study of chemical gelation in a patchy particle
model: We report event-driven molecular dynamics simulations of the irreversible
gelation of hard ellipsoids of revolution containing several associating
groups, characterizing how the cluster size distribution evolves as a function
of the extent of... | cond-mat_soft |
Curvature Dependence of Hydrophobic Hydration Dynamics: We investigate the curvature-dependence of water dynamics in the vicinity of
hydrophobic spherical solutes using molecular dynamics simulations. For both,
the lateral and perpendicular diffusivity as well as for H-bond kinetics of
water in the first hydration shel... | cond-mat_soft |
Phase diagram of heteronuclear Janus dumbbells: Using Aggregation-Volume-Bias Monte Carlo simulations along with Successive
Umbrella Sampling and Histogram Re-weighting, we study the phase diagram of a
system of dumbbells formed by two touching spheres having variable sizes, as
well as different interaction properties.... | cond-mat_soft |
Local Cooperativity Mechanism in the DNA Melting Transition: We propose a new statistical mechanics model for the melting transition of
DNA. Base pairing and stacking are treated as separate degrees of freedom, and
the interplay between pairing and stacking is described by a set of local rules
which mimic the geometric... | cond-mat_soft |
Heterogeneous Solvent Dissipation Coupled with Particle Rearrangement in
Shear Thinning Non-Brownian Suspensions: Dense non-Brownian suspensions exhibit significant shear thinning, although a
comprehensive understanding of the full scope of this phenomenon remains
elusive. This study numerically reveals intimate hete... | cond-mat_soft |
Role of the glassy dynamics and thermal mixing in the dynamic nuclear
polarization and relaxation mechanisms of pyruvic acid: The temperature dependence of $^1$H and $^{13}$C nuclear spin-lattice
relaxation rate $1/T_1$ has been studied in the 1.6 K - 4.2 K temperature range
in pure pyruvic acid and in pyruvic acid c... | cond-mat_soft |
Wall slip and flow of concentrated hard-sphere colloidal suspensions: We present a comprehensive study of the slip and flow of concentrated
colloidal suspensions using cone-plate rheometry and simultaneous confocal
imaging. In the colloidal glass regime, for smooth, non-stick walls, the solid
nature of the suspension c... | cond-mat_soft |
Charged dendrimers revisited: Effective charge and surface potential of
dendritic polyglycerol sulfate: We investigate key electrostatic features of charged dendrimers at hand of
the biomedically important dendritic polyglycerol sulfate (dPGS) macromolecule
using multi-scale computer simulations and Zetasizer experim... | cond-mat_soft |
Versatile coating platform for metal oxide nanoparticles: applications
to materials and biological science: In this feature article, we provide an overview of our research on
statistical copolymers as a coating material for metal oxide nanoparticles and
surfaces. These copolymers contain functional groups enabling no... | cond-mat_soft |
Intra-Globular Structures in Multiblock Copolymer Chains from a Monte
Carlo Simulation: Multiblock copolymer chains in implicit nonselective solvents are studied by
Monte Carlo method which employs a parallel tempering algorithm. Chains
consisting of 120 $A$ and 120 $B$ monomers, arranged in three distinct
microarchi... | cond-mat_soft |
Surprising simplicity in the modeling of dynamic granular intrusion: Granular intrusions, such as dynamic impact or wheel locomotion, are complex
multiphase phenomena where the grains exhibit solid-like and fluid-like
characteristics together with an ejected gas-like phase. Despite decades of
modeling efforts, a unifie... | cond-mat_soft |
Micelle formation, gelation and phase separation of amphiphilic
multiblock copolymers: The phase behaviour of amphiphilic multiblock copolymers with a large number
of blocks in semidilute solutions is studied by lattice Monte Carlo
simulations. The influence on the resulting structures of the concentration,
the solve... | cond-mat_soft |
Force spectroscopy of polymer desorption: Theory and Molecular Dynamics
simulation: Forced detachment of a single polymer chain, strongly-adsorbed on a solid
substrate, is investigated by two complementary methods: a coarse-grained
analytical dynamical model, based on the Onsager stochastic equation, and
Molecular Dy... | cond-mat_soft |
Fundamental measure theory for the electric double layer: implications
for blue-energy harvesting and water desalination: Capacitive mixing (CAPMIX) and capacitive deionization (CDI) are promising
candidates for harvesting clean, renewable energy and for the energy efficient
production of potable water, respectively.... | cond-mat_soft |
Deformation and motion of giant unilamellar vesicles loaded with gold
nanoparticles driven by induced charge electro-osmotic flow: A vesicle is a spherical structure composed of a phospholipid bilayer that is
used as a container for chemicals, both it in vivo and it in vitro systems. In
both cases, the vesicles can b... | cond-mat_soft |
Some comments on the fracture of viscoelastic solids: Crack propagation in viscoelastic solids like rubber is of great practical
importance. Shrimali and Lopez-Pamies have proposed a new interesting approach
for the crack propagation in viscoelastic solids. We give comments on the
validity of the theory and point out s... | cond-mat_soft |
Withdrawing a solid from a bath: how much liquid is coated?: A solid withdrawn from a liquid bath entrains a film. In this review, after
recalling the predictions and results for pure Newtonian liquids coated on
simple solids, we analyze the deviations to this ideal case exploring
successively three potential sources o... | cond-mat_soft |
Lift force on an asymmetrical obstacle immersed in a dilute granular
flow: This paper investigates the lift force exerted on an elliptical obstacle
immersed in a granular flow through analytical calculations and computer
simulations. The results are shown as a function of the obstacle size,
orientation with respect t... | cond-mat_soft |
Anisotropic Characteristic Lengths of Colloidal Monolayers Near a
Water-Air Interface: Near-interface colloidal monolayers have often been used as model systems for
research on hydrodynamics in biophysics and microfluidic systems. Using optical
microscopy and multiparticle tracking techniques, the correlated diffusio... | cond-mat_soft |
Physics of suction cups in air and in water: We present experimental results for the dependency of the pull-off time
(failure time) on the pull-off force for suction cups in the air and in water.
The results are analyzed using a theory we have developed for the contact
between suction cups and randomly rough surfaces. ... | cond-mat_soft |
Global perspectives on the energy landscapes of liquids, supercooled
liquids, and glassy systems: The potential energy landscape ensemble: In principle, all of the dynamical complexities of many-body systems are
encapsulated in the potential energy landscapes on which the atoms move - an
observation that suggests tha... | cond-mat_soft |
Temperature as an external field for colloid-polymer mixtures :
"quenching" by heating and "melting" by cooling: We investigate the response to temperature of a well-known colloid-polymer
mixture. At room temperature, the critical value of the second virial
coefficient of the effective interaction for the Asakura-Oos... | cond-mat_soft |
Helix formation in linear achiral dendronized polymers. A computer
simulation study: We present a molecular simulation study of the structure of linear
dendronized polymers. We use excluded volume interactions in the context of a
generic coarse-grained molecular model whose geometrical parameters are tuned
to represe... | cond-mat_soft |
Parametric excitation of wrinkles in elastic sheets on elastic and
viscoelastic substrates: Thin elastic sheets supported on compliant media form wrinkles under lateral
compression. Since the lateral pressure is coupled to the sheet's deformation,
varying it periodically in time creates a parametric excitation. We st... | cond-mat_soft |
Superfast collective motion of magnetic particles: It is well-known that magnetic forces can induce a formation of densely
packed strings of magnetic particles or even sheafs of several strings
(spindles). Here we show that in a sufficiently strong magnetic field, more
complex aggregates of particles, translating with ... | cond-mat_soft |
Saffman-Taylor instability in a non-Brownian suspension: finger
selection and destabilization: We study the Saffman-Taylor instability in a non-Brownian suspension by
injection of air. We find that flow structuration in the Hele-Shaw cell can be
described by an effective viscosity depending on the volume fraction. Wh... | cond-mat_soft |
Interfacial Reactions: Mixed Order Kinetics and Segregation Effects: We study A-B reaction kinetics at a fixed interface separating A and B bulks.
Initially, the number of reactions ${\cal R}_t \sim t n_A^\infty n_B^\infty$ is
2nd order in the far-field densities $n_A^\infty,n_B^\infty$. First order
kinetics, governed ... | cond-mat_soft |
Wave mixing of optical pulses and Bose-Einstein condensates: We investigate theoretically the four-wave mixing of optical and matter waves
resulting from the scattering of a short light pulse off an atomic
Bose-Einstein condensate, as recently demonstrated by D. Schneble {\em et al.}
[ Science {\bf 300}, 475 (2003)]. W... | cond-mat_soft |
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