Themed collection Soft Matter 20th Anniversary Collection

Harnessing Interfacial Entropic Effects in Polymer Grafted Nanoparticle Composites for Tailoring their Thermo-Mechanical and Separation Properties.
Soft Matter, 2025, Accepted Manuscript
https://doi.org/10.1039/D4SM01549E
Probing nanopores: molecular dynamics insights into the mechanisms of DNA and protein translocation through solid-state and biological nanopores
Nanopore sequencing technology has revolutionized single-molecule analysis through its unique capability to detect and characterize individual biomolecules with unprecedented precision.
Soft Matter, 2025,21, 2385-2399
https://doi.org/10.1039/D4SM01534G

Rethinking nuclear shaping: insights from the nuclear drop model
The resistance of the liquid drop-like nucleus to deformation is dependent on whether the nuclear lamina is smooth or wrinkled. When it is smooth and taut, the nuclear shape can be calculated from geometric constraints on volume and surface area.
Soft Matter, 2024,20, 7558-7565
https://doi.org/10.1039/D4SM00683F
Interface morphodynamics in living tissues
Interfaces are widespread and essential in living systems, playing crucial roles in biological processes. Understanding the evolution and morphodynamic behavior can provide valuable insights into life formation, development, and disease progression.
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D5SM00145E

Recent advances in nanoprecipitation: from mechanistic insights to applications in nanomaterial synthesis
Nanoprecipitation is a versatile, low-energy technique for synthesizing nanomaterials through phase separation, enabling precise tuning of nanomaterial properties.
Soft Matter, 2025,21, 2759-2781
https://doi.org/10.1039/D5SM00006H

Polyvinyl alcohol-based polarizers for new displays: molecules, processing and properties
This review clarifies the structure–process–property relationship in PVA-based polarizers.
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D4SM01530D
Physics of polymer gels: Toyoichi Tanaka and after
This review revisits the works of Toyoichi Tanaka on the physics of polymer gels and discusses their scientific significance, covering volume phase transition, structure, dynamics, kinetics and inhomogeneities, followed by some recent topics.
Soft Matter, 2025,21, 1995-2009
https://doi.org/10.1039/D4SM01418A
Peptide-mediated liquid–liquid phase separation and biomolecular condensates
Peptide-mediated liquid–liquid phase separation (LLPS) underpins the formation of dynamic biomolecular condensates, regulated by diverse molecular interactions, and highlights potential applications in drug delivery and synthetic biology.
Soft Matter, 2025,21, 1781-1812
https://doi.org/10.1039/D4SM01477D
Supramolecular chiroptical sensing of chiral species based on circularly polarized luminescence
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.
Soft Matter, 2024,20, 8937-8946
https://doi.org/10.1039/D4SM00960F
Cluster-directed ionic framework supramolecular hydrogel with high-temperature tolerability and enhanced water evaporation
Ionic supramolecular frameworks made of polyoxometalates and cationic pseudo-rotaxane can form hydrogels with a stable, hierarchical porous structure that remains stable at temperatures above water's boiling point, reducing the evaporation enthalpy.
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D5SM00004A
Understanding polymer–colloid gels: a solvent perspective using low-field NMR
We perform a dual rheological and NMR systematic characterization of CMC/CB hydrogels emphasizing phase transitions through the variation of both the gel formulation and temperature.
Soft Matter, 2025,21, 342-347
https://doi.org/10.1039/D4SM01098A

Designing yield stress fluids for advanced materials processing using derivatives of pH-responsive branched copolymer surfactants.
Soft Matter, 2025, Accepted Manuscript
https://doi.org/10.1039/D4SM01473A
Effective modulus of particle-packing containing hard and soft particles
We determine the effective modulus of particle-packing containing hard and soft spheres via nanoindentation and compare the value with those obtained from cracking of drying colloidal films and buckling of drying colloidal drops.
Soft Matter, 2025,21, 2986-2993
https://doi.org/10.1039/D4SM01366B

Compression, expansion and relaxation of soft colloidal monolayers at the air/water interface
Soft Matter, 2025, Accepted Manuscript
https://doi.org/10.1039/D4SM01383B

Inertia-driven propulsion of asymmetric spinner-dimers at moderate Reynolds numbers
Soft Matter, 2025, Accepted Manuscript
https://doi.org/10.1039/D5SM00108K

Biosurfactant/surfactant mixing properties at the air–water interface: comparing rhamnolipids and sophorolipids mixed with the anionic surfactant sodium dodecyl benzene sulfonate
There is an increasing interest in the use of biosurfactants in the development of more biocompatible and biosustainable surfactant-based products.
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D5SM00147A

Nonlinear behavior of stochastic athermal fiber networks with elastic–plastic fibers
We determine the dependence of the network yield stress and strain on structural parameters, and identify the effect of plasticity on the non-linear deformation and dissipation.
Soft Matter, 2025,21, 2882-2895
https://doi.org/10.1039/D4SM01427H

Impact of cross-linking on the time–temperature superposition of creep rupture in epoxy resins
Highly cross-linked epoxy resins caused horizontal shift factor in large-stress creep to deviate from Williams–Landel–Ferry equation, exhibiting Arrhenius-type behaviour.
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D4SM01540A

Tunable assembly of confined Janus microswimmers in sub-kHz AC electric fields under gravity
Varying the frequency of alternating current (AC) electric fields drives the assembly of different phases comprising Janus microswimmers confined under gravity.
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D4SM01511H

Chain dynamics in polyisoprene stars with arms linked by dynamic covalent bonds to the central core
Model systems incorporating dynamic covalent bonds, like star-shaped polymers, are ideal for gaining insights into the role played by the bond exchange in the dynamics.
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D5SM00091B

Microfiber suspensions for the removal of adhered colloids from surfaces, microdevices, and cavities
Effective methods for cleaning surfaces are important for applications including dentistry, healthcare, micro-devices, and the manufacture of electronic components and semiconductors.
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D5SM00065C
Synergistic effects of azobenzene and thiourea backbones in multiresponsive copolymers for sensing and adhesive technologies
Multifunctional azobenzene-based copolymers are designed and synthesized. The azobenzene groups exhibited thermally induced cis-to-trans isomerization, leading to structural reorganization, increased molecular packing, and elevated Tg.
Soft Matter, 2025,21, 2704-2715
https://doi.org/10.1039/D4SM01536C
Spontaneous generation of angular momentum in chiral active crystals
We study a two-dimensional chiral active crystal composed of underdamped chiral active particles, which show the spontaneous generation of angular momentum.
Soft Matter, 2025,21, 2586-2606
https://doi.org/10.1039/D4SM01426J

Solute dispersion in pre-turbulent confined active nematics
We study how self-organised active flows in confined channels disperse solutes and extend the Taylor–Aris dispersion law to incorporate active nematic flows.
Soft Matter, 2025,21, 2569-2577
https://doi.org/10.1039/D4SM01175A
Tuneable microfibrillar collagen structures within dense chitosan hydrogels
Concentrated type I collagen–chitosan mixed hydrogels were prepared. Unusual branched collagen fibrils were obtained whose microstructure varies with collagen content and gelation method.
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D4SM01448K

The motion of catalytically active colloids approaching a surface
Catalytic microswimmers are typically studied close to walls, where they are known to slow down upon addition of salt. By lifting them up, we showed how their speeds change with distance from the wall, with and without salt.
Soft Matter, 2025,21, 2541-2547
https://doi.org/10.1039/D4SM01387E
Quantitative rationalization of the unexpectedly moderate water wettability of poly(vinyl alcohol) surfaces: thermodynamic evaluation and prediction of surface hydrogen bonding
In this work, a series of as-prepared poly(vinyl alcohol) (PVA) films with varied water wettability was prepared by curing at systematically adjusted temperatures.
Soft Matter, 2025,21, 2548-2557
https://doi.org/10.1039/D4SM01524J

Poroelasticity and permeability of fibrous polymer networks under compression
Fibrous biopolymer gels under compression lose volume by the flow of water through pores. Fluid flow and network deformation in the gel are non-uniform. A model accounting for buckling of fibers captures the observed deformation and flow patterns.
Soft Matter, 2025,21, 2400-2412
https://doi.org/10.1039/D4SM01223B

Viscotaxis of beating flagella
Many biological microorganisms and artificial microswimmers react to external environmental gradients, like viscosity. Symmetric eukaryotic flagella swim up-gradient, while chirality implies drifting circles perpendicular to the gradient (picture).
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D4SM01328J

Development of colorimetric PEG-based hydrogel sensors for urea detection
Urea has environmental, agricultural and clinical importance being present in many bodily fluids including blood, urine, tears and sweat.
Soft Matter, 2025,21, 2268-2281
https://doi.org/10.1039/D4SM01500B

Hybrid phytoglycogen-dopamine nanoparticles as biodegradable underwater adhesives
Phytoglycogen-dopamine hybrids are developed as very sticky and biodegradable (towards glucosidase enzymes) underwater adhesive materials.
Soft Matter, 2025,21, 2282-2290
https://doi.org/10.1039/D4SM01454E
Demixing of an active-passive binary mixture through a two-dimensional elastic meshwork
A monodisperse mixture of active and passive particles can be separated using an elastic meshwork with a mesh size smaller than the particle size.
Soft Matter, 2025,21, 2242-2250
https://doi.org/10.1039/D4SM01443J

New perspectives on green and sustainable wet cleaning systems for art conservation
Green microemulsions based on bio-derived and eco-friendly surfactants enhance cleaning efficacy, aligning with environmental conservation and cultural heritage preservation.
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D5SM00017C

Unravelling chain confinement and dynamics of weakly entangled polymers in one component nanocomposites
Motional heterogeneity for the grafted chains in the OCNC depends on the confinement strength.
Soft Matter, 2025, Advance Article
https://doi.org/10.1039/D4SM01505C
Hydrogen-bond disruption in molecularly engineered Janus evaporators for enhanced solar desalination
Tailoring the alkyl groups of biparental polyelectrolytes in the Janus evaporator effectively disrupts water hydrogen bonding, achieving a low water evaporation enthalpy of 1434 J g−1 and an evaporation rate of 4.1 kg m−2 h−1.
Soft Matter, 2025,21, 2114-2123
https://doi.org/10.1039/D4SM01484G

Drop splitting on hydrophobic wedge-shaped tips after central impact: effect of sharpness and wetting properties
Does a knife-like wedge-shaped tips always split a centrally impacting water drop? Here, we combine experiments and volume of fluid (VOF) simulations to investigate this process. The answer might surprise you—find out in this manuscript.
Soft Matter, 2025,21, 1949-1956
https://doi.org/10.1039/D4SM01373E
Knotting and adsorption of end-grafted active polymers
Increasing the rotational inertia of the active head in the active polymer enhances the knotting and weakens the adsorption of an end-grafted active polymer. Knotted polymers are less adsorbed than unknotted ones.
Soft Matter, 2025,21, 1873-1883
https://doi.org/10.1039/D4SM01355G
Chemical and physical properties of orthoconic liquid crystals: 2H NMR spectroscopy and molecular dynamics simulations
2H NMR spectroscopy, MD simulations, X-ray diffraction and electrooptic measurements show a very high tilt angle in the orthoconic antiferroelectric phase.
Soft Matter, 2025,21, 1646-1661
https://doi.org/10.1039/D4SM01321B
Boundaries and cross-linking densities modulate domain sizes of polydomain nematic elastomers
The tangible effects of the interfaces and cross-linking density on the domain size of the polydomain structures of nematic liquid crystal elastomers were explored.
Soft Matter, 2025,21, 1233-1240
https://doi.org/10.1039/D4SM01419G

α-Synuclein interaction with POPC/POPS vesicles
We have investigated the adsorption of α-Synuclein (αSyn) onto small unilamellar vesicles composed of zwitterionic POPC and anionic POPS lipids, as well as the impact αSyn fibril formation has on vesicle stability.
Soft Matter, 2025,21, 914-926
https://doi.org/10.1039/D4SM01036A

Two-stage photodegradation of indomethacin molecular nanocomposites under extreme confinement
The incorporation of a glassy material into a self-assembled nanoparticle (NP) film can produce highly loaded nanocomposites, with improved photostability under the right conditions.
Soft Matter, 2025,21, 1002-1011
https://doi.org/10.1039/D4SM01266F

Nematic liquid crystal flow driven by time-varying active surface anchoring
We demonstrate the generation of diverse material flow regimes in nematic liquid cells as driven by time-variable active surface anchoring, including no-net flow, oscillatory flow, steady flow, and pulsating flow.
Soft Matter, 2025,21, 835-843
https://doi.org/10.1039/D4SM00924J
Controlled synthesis of ternary acrylamide/sodium acrylate/polyethyleneglycol hybrids by integrating different clays and fillers: a comprehensive evaluation of structural features
Eco-friendly poly(acrylamide-co-sodium acrylate)/polyethyleneglycol hybrid gels reinforced with Bentonite, Kaolin, Mica, Graphene and Silica for enhanced elasticity, swelling and adsorptive properties.
Soft Matter, 2025,21, 866-892
https://doi.org/10.1039/D4SM01090F
Phage probes couple to DNA relaxation dynamics to reveal universal behavior across scales and regimes
M13 phage are a novel microrheological probe that are sensitive to polymer relaxations, capturing DNA dynamics and revealing universal scaling behaviors across the unentangled and entangled regimes.
Soft Matter, 2025,21, 935-947
https://doi.org/10.1039/D4SM01150C
Magnetic microwire rheometer reveals differences in hydrogel degradation via disulfide reducing agents
Mucus is composed of a complex network of mucin polymers connected by disulfide bonds.
Soft Matter, 2025,21, 427-434
https://doi.org/10.1039/D4SM01118J
Composite of knitted fabric and soft matrix. I. Crack growth in the course direction
This study focuses on the microscopic processes of crack growth in a composite of knitted fabric and soft matrix in the course direction under both monotonic and cyclic stretching.
Soft Matter, 2024,20, 9614-9621
https://doi.org/10.1039/D4SM01114G

Divalent cation effects in the glass transition of poly(diallyldimethylammonium)–poly(styrene sulfonate) polyelectrolyte complexes
The assembly and dynamics of polyelectrolyte complexes (PECs) and polyelectrolyte multilayers (PEMs) are influenced by water content, pH, and salt concentration.
Soft Matter, 2024,20, 9631-9641
https://doi.org/10.1039/D4SM00856A

Solvent-free confinement of ordered microparticle monolayers: effect of host substrate and pattern symmetry
We report a solvent-free assembly method where microspheres align on fluorocarbon patterns without rigid boundaries, creating tunable crystal patterns. Our findings highlight the impact of tribocharging and substrate elasticity on particle ordering.
Soft Matter, 2024,20, 9413-9423
https://doi.org/10.1039/D4SM01196A

A dynamical system approach to relaxation in glass-forming liquids
We adapt a dynamical system approach to the practical matter of estimating relaxation times in both cooled liquids and crystals at elevated temperatures, which we identify as weakly non-integrable dynamical systems.
Soft Matter, 2024,20, 9140-9160
https://doi.org/10.1039/D4SM00976B
Mapping deformation dynamics to composition of topologically-active DNA blends
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.
Soft Matter, 2024,20, 8909-8923
https://doi.org/10.1039/D4SM01065E

Curvature induces and enhances transport of spinning colloids through narrow channels
Curvature in a microfluidic channel can be used to induce and enhance the propulsion of magnetically driven microscopic rotors.
Soft Matter, 2024,20, 7615-7622
https://doi.org/10.1039/D4SM00829D
Effect of rotational shear on the dielectric dispersion of a nematic liquid crystal above the Freedericksz threshold field
Rheo-dielectric studies of soft materials provide important information on the dynamic structure and electric polarization.
Soft Matter, 2024,20, 6965-6970
https://doi.org/10.1039/D4SM00682H
About this collection
June 2025 marks 20 years since the first articles were published in Soft Matter and as part of the celebrations for Soft Matter’s 20th Anniversary, we are delighted to introduce to you our 20th Anniversary Collection. Featuring high quality research and review articles from some of the top authors in the field, we hope you enjoy reading this special collection.
We would like to thank all of our authors, reviewers, and readers for your incredible support since we launched and we look forward to seeing what developments the next 20 years will bring!