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Mechanical characterization of freestanding lipid bilayers with temperature-controlled phase

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Soft Matter, 2024, 20,8524-8537
DOI: 10.1039/D4SM00706A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Arash Yahyazadeh Shourabi, Roland Kieffer, Djanick de Jong, Daniel Tam, Marie-Eve Aubin-Tam
Lipid membranes formed in a microfluidic device are studied with temperature-controlled optical tweezers, revealing how mechanical properties of ripple phase and gel-fluid phase-separated membranes change when heated above the transition temperature.
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Rolling and ordering of micro rods in shear flow induced by rod wall interactions

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00999A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Martin Wittmann, Igor M. Kulić, Antonio Stocco, Juliane Simmchen
We use experiments and theoretical models to investigate the rolling and translational motion of rod-shaped micro particles close to a solid wall in the presence or absence of shear flow.
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Coupled dynamics in binary mixtures of model colloidal Yukawa systems

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM01123F, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Daniel Weidig, Joachim Wagner
Self- and collective dynamics in mixtures of highly charged binary colloidal particles is analyzed by Brownian dynamics simulations. For equally charged, but differently sized particles coupling effects in their long-time dynamics are observed.
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Src kinase slows collective rotation of confined epithelial cell monolayers

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00827H, Paper
Nastassia Pricoupenko, Flavia Marsigliesi, Philippe Marcq, Carles Blanch-Mercader, Isabelle A Bonnet
Collective cell migration is key during development, wound healing and metastasis and relies on coordinated cell behaviors at the group level. Src kinase is a key signalling protein for physiological...
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Enhanced gravitational trapping of bottom-heavy Janus particles over parallel microgrooves

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00989D, Paper
Yan Wen, Jiayu Liu, Wei Wang, Pik-Yin Lai, Penger Tong
We report a systematic study of barrier-crossing dynamics of bottom-heavy self-propelled particles (SPPs) over a one-dimensional periodic potential landscape $U_0(x)$, which is fabricated on a microgroove-patterned polydimethylsiloxane (PDMS) substrate. From...
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Thickness-dependent response of aerosol-jet-printed ultrathin high-aspect-ratio electrochemical microactuators

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00886C, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Ji Zhang, Jeremy J. Baumberg, Sohini Kar-Narayan
Trilayer electrochemical actuators comprising an electrolyte layer sandwiched between two electrode layers have been shown to exhibit large deformations at low actuation voltages. Here we report aerosol-jet printing (AJP) of...
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Long-lived unidirectional flow of active particles within long narrow channels

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00879K, Paper
Man Xu, Ying Lan, Yuehua Yang, Hongyuan Jiang
We present the dynamics of particles in a device divided into two chambers by V-shaped barriers and connected by a narrow channel. Here three distinct movement modes occur, including stochastic movement, oscillation and unidirectional flows.
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Mapping deformation dynamics to composition of topologically-active DNA blends

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM01065E, Paper
Karthik R. Peddireddy, Ryan McGorty, Rae M. Robertson-Anderson
We leverage in situ enzymatic topological conversion and OpTiDDM to map the deformation dynamics of DNA blends with over 70 fractions of linear, ring and supercoiled molecules that span the phase space of possible topological compositions.
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Scale-dependent interactions enable emergent microrheological stress response of actin–vimentin composites

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00988F, Paper
Julie Pinchiaroli, Renita Saldanha, Alison E. Patteson, Rae M. Robertson-Anderson, Bekele J. Gurmessa
The unique mechanical behaviors of actin–vimentin composites in both linear and nonlinear regimes are shaped by the complex interactions among actin entanglements, vimentin crosslinking, and poroelastic properties.
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Liquid crystalline collagen assemblies as substrates for directed alignment of human Schwann cells

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00534A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Homa Ghaiedi, Luis Carlos Pinzon Herrera, Saja Alshafeay, Leonard Harris, Jorge Almodovar, Karthik Nayani
Collagen is a key component of the extracellular matrix (ECM) and well-oriented domains of collagen are important for mimicking the local cell environment in vitro. Here, we demonstrate macroscopic alignment on collagen in 2-D substrates and 3-D hydrogels.
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Towards a universal model for the foaming behavior of surfactants: a case study on per- and polyfluoroalkyl substances (PFAS)

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00931B, Paper
Muchu Zhou, Reza Foudazi
Foam fractionation offers a promising solution for the separation of surface-active contaminants from water.
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Morphology and line tension of twist disclinations in a nematic liquid crystal

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM01076K, Paper
Open Access
Yihao Chen, Mina Mandić, Charlotte G. Slaughter, Michio Tanaka, James M. Kikkawa, Peter J. Collings, A. G. Yodh
This work characterizes twist disclinations in nematic liquid crystals, using confocal microscopy to measure their 3D profile and test theoretical predictions, and using magnetic fields to deform the disclinations and measure their line tension.
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Active nematic coherence probed under spatial patterns of distributed activity

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00651H, Paper
Ignasi Vélez Cerón, Jordi Ignes-Mullol, Francesc Sagues
A photoresponsive variant of the paradigmatic active nematic fluid made of microtubules and powered by kinesin motors is studied in the conventional two-dimensional interfaced form when forced under blue-light illumination....
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Dynamical crossovers and correlations in a harmonic chain of active particles

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Soft Matter, 2024, 20,8638-8653
DOI: 10.1039/D4SM00350K, Paper
Subhajit Paul, Abhishek Dhar, Debasish Chaudhuri
We explore the dynamics of a tracer in a harmonic chain of active particles, investigating the influence of interactions. Depending upon the time-scales governed by the interaction and the persistence of activity, we explore crossovers between different scaling behaviors of its dynamics.
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Model predictive control of non-interacting active Brownian particles

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Soft Matter, 2024, 20,8581-8588
DOI: 10.1039/D4SM00902A, Paper
Titus Quah, Kevin J. Modica, James B. Rawlings, Sho C. Takatori
Model predictive control is used to guide the spatiotemporal distribution of active Brownian particles by forecasting future states and optimizing control inputs to achieve tasks like dividing a population into two groups.
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Tuning collective actuation of active solids by optimizing activity localization

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Soft Matter, 2024, 20,8570-8580
DOI: 10.1039/D4SM00868E, Paper
Davi Lazzari, Olivier Dauchot, Carolina Brito
Active solids, more specifically elastic lattices embedded with polar active units, exhibit collective actuation when the elasto-active feedback, generically present in such systems, exceeds some critical value.
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Pickering emulsions for stimuli-responsive transdermal drug delivery: effect of rheology and microstructure on performance

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Soft Matter, 2024, 20,8621-8637
DOI: 10.1039/D4SM00993B, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Simona Migliozzi, Yiting He, Maryam Parhizkar, Yang Lan, Panagiota Angeli
Elucidating the impact of microgels attributes on the microstructure, rheology and functionality of Pickering emulsions.
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Enhanced chemotaxis efficiency of Escherichia coli in viscoelastic solutions

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Soft Matter, 2024, 20,8675-8683
DOI: 10.1039/D4SM01094A, Paper
Shaoying Zhu, Rui He, Caijuan Yue, Rongjing Zhang, Junhua Yuan
E. coli shows enhanced chemotaxis in viscoelastic media, with faster migration and higher accumulation in attractant-rich areas compared to Newtonian conditions.
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Confined bicontinuous microemulsions: nanoscale dynamics of the surfactant film

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Soft Matter, 2024, 20,8692-8701
DOI: 10.1039/D4SM00925H, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Margarethe Dahl, Olaf Holderer, René Haverkamp, Ingo Hoffmann, Kathleen Wood, Jessica Hübner, Thomas Hellweg, Stefan Wellert
A confined bicontinuous C10E4–D2O–n-octane microemulsion is studied using neutron spin echo spectroscopy (NSE). The pore size of the confining matrices determines the dynamics of the confined bicontinuous microemulsion.
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Hydrophobic fouling-resistant electrospun nanofiber membranes from poly(vinylidene fluoride)/polyampholyte blends

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Soft Matter, 2024, 20,8654-8662
DOI: 10.1039/D4SM00817K, Paper
Anuja S. Jayasekara, Luca Mazzaferro, Ryan O’Hara, Ayse Asatekin, Peggy Cebe
This study reports the fabrication of non-woven fibrous membranes from electrospinning blended solutions of PVDF with a random polyampholyte amphiphilic copolymer (r-PAC) in N,N-dimethylformamide and methanol.
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Entropically and enthalpically driven self-assembly of a naphthalimide-based luminescent organic π-amphiphile in water

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Soft Matter, 2024, 20,8684-8691
DOI: 10.1039/D4SM00986J, Paper
Sk Mursed Ali, Sujauddin Sk, Shuvajyoti Sarkar, Sayani Das, Nayim Sepay, Mijanur Rahaman Molla
Entropically and enthalpically favourable vesicular self-assembly of a naphthalimide based water soluble luminescent organic dipolar building block is reported.
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Bending of polymer films: a method for obtaining a compressive modulus of thin films

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Soft Matter, 2024, 20,8589-8600
DOI: 10.1039/D4SM00084F, Paper
Akihiro Ohara, Ko Okumura
We constructed a theory and method for measuring the compressive modulus by combining tensile and bending tests. Elastic asymmetry was confirmed in an industrial PET film.
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Extended kinetic theory applied to pressure-controlled shear flows of frictionless spheres between rigid, bumpy planes

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Soft Matter, 2024, 20,8702-8715
DOI: 10.1039/D4SM00831F, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Dalila Vescovi, Astrid S. de Wijn, Graham L. W. Cross, Diego Berzi
We perform discrete simulations of steady, pressure-imposed, heterogeneous flows of frictionless spheres sheared between parallel bumpy planes, and use the results to test the predictions of the extended kinetic theory of granular gases.
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Structure affinity of the Langmuir monolayer and the corresponding Langmuir–Blodgett film revealed by X-ray techniques

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Soft Matter, 2024, 20,8601-8609
DOI: 10.1039/D4SM01050G, Paper
Alvina V. Alexandrova, Maxim A. Shcherbina, Yuriy L. Repchenko, Yuriy M. Selivantiev, Alexander V. Shokurov, Vladimir V. Arslanov, Sofiya L. Selektor
Using X-ray techniques, crown-substituted chromoionophore Langmuir–Blodgett films were proved to preserve the fine structure and functional features of pre-organized monolayers.
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Influence of counterion type on the scattering of a semiflexible polyelectrolyte

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Soft Matter, 2024, 20,8610-8620
DOI: 10.1039/D4SM00874J, Paper
Open Access
Anish Gulati, Jack F. Douglas, Olga Matsarskaia, Carlos G. Lopez
Understanding the influence of counterion and backbone solvation on the conformational and thermodynamic properties of polyelectrolytes in solution is one of the main open challenges in polyelectrolyte science.
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Light scattering study of algal floc growth and structure: alum vs. polymeric plant-derived flocculant

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00837E, Paper
Temitope Orimolade, Ngoc-Tram Le, Lyle Trimble, Bandaru Ramarao, Sitaraman Krishnan
Algal flocculation using alum shows dynamic fractal restructuring over time, while Moringa oleifera protein induces faster densification, enhancing floc strength.
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The role of macrocycles in supramolecular assembly with polymers

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Soft Matter, 2024, 20,8549-8560
DOI: 10.1039/D4SM01053A, Review Article
Ruslan Kashapov, Yuliya Razuvayeva, Elena Fedorova, Lucia Zakharova
Supramolecular self-assembly of polymers with macrocycles has attracted the attention because it enables the spontaneous creation of nanostructures with unique properties.
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Thin free-standing liquid films manipulation: device design to turn on/off gravity in flow regimes for thickness map control and for material structuring

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00951G, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Paolo Iaccarino, Zhe Wang, Andrea Marfuggi, Simone Russo, Vincenzo Ferraro, Giuseppe Vitiello, Sara Coppola, Ernesto Di Maio
We design a device to control liquid film drainage, able to switch between viscous-capillary and viscous-gravity regimes to stabilize thickness and modify particle arrangement, offering potential for film studies and 2D structure fabrication.
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Hydrogel-based 3D fabrication of multiple replicas with varying sizes and materials from a single template via iterative shrinking

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00835A, Paper
Eunseok Heo, Hye Been Koo, Jun Chang Yang, In Cho, Hyun-Hee Lee, Yong-Jin Yoon, Steve Park, Jae-Byum Chang
3D printing technologies have been widely used for the rapid prototyping of 3D structures, but their application in a broader context has been hampered by their low printing throughput. For...
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Co-assembly of Cellulose Nanocrystals and Gold Nanorods: Insights from Molecular Dynamics Modelling

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00871E, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Jiaxin Hou, William W Sampson, Ahu Gumrah Dumanli
A coarse-grained molecular dynamics model is developed to explore the co-assembly of cellulose nanocrystals (CNCs) and gold nanorods (AuNRs) under sedimentation conditions with varying vol- umetric concentration and particle-size ratios....
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Dynamics of switching processes: general results and applications to intermittent active motion

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM01054J, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Ion Santra, Deepak Gupta, Kristian S Olsen
Systems switching between different dynamical phases is an ubiquitous phenomenon. The general understanding of such a process is limited. To this end, we present a general expression that captures fluctuations...
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Dynamics of polymers in coarse-grained nematic solvents

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00968A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Zahra Valei, Karolina Wamsler, Alex J Parker, Therese A Obara, Alex Klotz, Tyler Nathan Shendruk
Polymers are a primary building block in many biomaterials, often interacting with anisotropic backgrounds. While previous studies have considered polymer dynamics within nematic solvents, rarely are the the effects of...
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Interfacial viscoelasticity in oscillating drops of cyclodextrin-surfactant aqueous solution: experiments and theory

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM01007H, Paper
José Roberto Romero-Arias, Alberto S. Luviano, Miguel Costas, Aurora Hernandez-Machado, Rafael A Barrio
We present experiments involving oscillating droplets in aqueous cyclodextrin-surfactant solutions. In these experiments, α-cyclodextrin (αCD) and anionic surfactants exhibit remarkable viscoelasticity at the liquid/air interface, with dilatational modulus varying across...
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Fibrotaxis: gradient-free, spontaneous and controllable droplet motion on soft solids

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM01022A, Paper
Open Access
Sthavishtha Bhopalam, Jesus Bueno, Hector Gomez
Most passive droplet transport strategies rely on spatial variations of material properties to drive droplet motion, leading to gradient-based mechanisms with intrinsic length scales that limit the droplet velocity or...
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Mechanical properties soft hydrogels: assessment by scanning ion-conductance microscopy and atomic force microscopy

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00966E, Paper
Tatiana Tikhonova, Yuri M. Efremov, Vasilii Kolmogorov, Aleksei Iakovlev, Nikolay Sysoev, Peter S. Timashev, Victor Fadeev, Alexander Tivtikyan, Sergey Salikhov, Petr Gorelkin, Yuri Korchev, Alexandr Erofeev, Evgeny Shirshin
The growing interest in biomimetic hydrogels is due to their successful applications in tissue engineering, 3D cell culturing and drug delivery. Major characteristics of hydrogels include swelling, porosity, degradation rate,...
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Supramolecular chiroptical sensing of chiral species based on circularly polarized luminescence

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00960F, Review Article
Panyang Chen, Huahua Fan, Sifan Du, Xin Wen, Li Zhang, Minghua Liu
Chiral analytes can bind to an achiral fluorescent system to generate circularly polarized luminescence (CPL). Subsequently, the CPL signal can be employed to determine the absolute configuration of the chiral substrate.
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Tribocharging of granular materials flowing in grounded inclined tubes

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM01082E, Paper
Nicolas Preud’homme, Julien Schockmel, Eric Opsomer, Geoffroy Lumay
Numerical simulations using the patch model and the method of image charges, validated against experiments, show that tribocharging in granular materials within inclined grounded tubes depends on the tube's tilt angle and length.
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Solvent-Free Confinement of Ordered Microparticle Monolayers: Effect of Host Substrate and Pattern Symmetry

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM01196A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Ignaas Jimidar, Mitch de Waard, Gijs Roozendaal, Kai Sotthewes
The self-organisation of individual suspended colloids into ordered structures that can be mediated by confinement has garnered interest recently. Despite the push for solvent reduction for sustainability reasons, the comprehension...
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Obstacle-enhanced spontaneous oscillation of confined active granules

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM01027B, Paper
Xue Zhang, Yuxin Tian, Ran Ni, Yong Zhu, Luhui Ning, Peng Liu, Mingcheng Yang, Ning Zheng
Obstacle-enhanced spontaneous oscillation of confined active granules. (a) Without obstacles. (b) With obstacles.
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Biomimetic mineralization of positively charged silica nanoparticles templated by thermoresponsive protein micelles: applications to electrostatic assembly of hierarchical and composite superstructures

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00907J, Paper
Nada Y. Naser, William C. Wixson, Helen Larson, Brandi M. Cossairt, Lilo D. Pozzo, François Baneyx
Exploiting the ability of a solid-binding elastin-like peptide to micellize, we mineralize monodisperse silica nanoparticles whose positive surface charge enables one-step electrostatic assembly of various mono- and bi-material superstructures.
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Pairing-specific microstructure in depletion gels of bidisperse colloids

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00811A, Paper
Open Access
Rony A. Waheibi, Lilian C. Hsiao
We report the ensemble-averaged and pairing-specific network microstructure formed by short-range depletion attractions in bidisperse hard sphere-like colloidal systems.
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Individual Closed-Loop Control of Micromotors by Selective Light Actuation

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00810C, Communication
Open Access
David Rivas, Max Sokolich, Sambeeta Das
Control of individual micromotors within a group would allow for improved efficiency, greater ability to accomplish complex tasks, higher throughput, and increased adaptability. However, independent control of micromotors remains a...
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Coarsening dynamics of aster defects in a model polar active matter

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00788C, Paper
Soumyadeep Mondal, Pankaj Popli, Sumantra Sarkar
We numerically study the dynamics of topological defects in 2D polar active matter coupled to a conserved density field, which shows anomalous kinetics and defect distribution. The initial many- defect...
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Scale-dependent sharpening of interfacial fluctuations in shape-based models of dense cellular sheets

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00804A, Paper
Haicen Yue, Charles Packard, Daniel Sussman
The properties of tissue interfaces – between separate populations of cells, or between a group of cells and its environment – has attracted intense theoretical, computational, and experimental study. Recent...
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Percolation transitions in a binary mixture of active Brownian particles with different softness

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00981A, Paper
Monika Sanoria, Raghunath Chelakkot, Amitabha Nandi
Homogeneous active Brownian particle (ABP) systems with purely repulsive interactions are considered to exhibit a simple phase behavior, but various physical attributes of active entities can lead to variation in the collective dynamics.
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The influence of active agent motility on SIRS epidemiological dynamics

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00864B, Paper
Open Access
R. Kailasham, Aditya S. Khair
Motility induced phase separation of active disks with SIRS epidemiological dynamics.
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Shape memory and recovery mechanism in hard magnetic soft materials

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM01165A, Paper
Rong Jia, Kai Tan, Qian Deng
Two parts are integrated to close a circle: shape memory and recovery of hard-magnetic soft materials (HMSMs).
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Self-consistent electrostatic formalism of bulk electrolytes based on the asymmetric treatment of the short- and long-range ion interactions

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Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM01174K, Paper
Sahin Buyukdagli
Internal energy of monovalent electrolytes (left) and dimensionless screening parameter of multivalent electrolytes (right).
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A generalized model for predicting different morphologies of bacterial swarming on a porous solid surface

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM01072H, Paper
Uttam Kumar, Pushpavanam Subramaniam
In this study, we develop a comprehensive two-phase model to analyze the dynamics of bacterial swarming on porous substrates. The two distinct phases under consideration are the cell and aqueous...
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Effects of Hydration Water on Bioresponsiveness of Polymer Interfaces Revealed by Analysis of Linear and Cyclic Polymer–Grafted Substrates

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Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00977K, Paper
Open Access
Shin-nosuke Nishimura, Naoya Kurahashi, Shohei Shiomoto, Yoshihisa Harada, Masaru Tanaka
Given that the hydration water of polymer matrices may differ from that of outermost polymer surfaces, processes at biomaterial–biofluid interfaces and role of hydration water therein cannot be adequately examined...
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