Soft Matter最新文献

Correction: Droplet breakup against an isolated obstacle. 修正：液滴在一个孤立的障碍物上破裂。

IF 2.9 3区化学

Soft Matter Pub Date : 2026-09-03 DOI: 10.1039/d6sm90133f

David J Meer, Shivnag Sista, Mark D Shattuck, Corey S O'Hern, Eric R Weeks

引用次数: 0

A torrent intercepts the ionic flow in a polyelectrolyte solution II. 激流阻断了聚电解质溶液II中的离子流。

IF 2.9 3区化学

Soft Matter Pub Date : 2026-09-03 DOI: 10.1039/d6sm00276e

Rentaro Kanamori, Shuya Watanabe, Mohamed Hussien, Yoshifumi Yamagata, Keisuke Miyamoto, Mika Kawai, Tetsu Mitsumata

引用次数: 0

Surfactant-mediated control of wetting and mobility of droplets on polydimethylsiloxane (PDMS)-based slippery surfaces. 表面活性剂对聚二甲基硅氧烷（PDMS）基光滑表面液滴润湿和迁移的调控。

IF 2.9 3区化学

Soft Matter Pub Date : 2026-09-03 DOI: 10.1039/d6sm00726k

Avijeet Rai, Jitesh Barman

{"title":"Surfactant-mediated control of wetting and mobility of droplets on polydimethylsiloxane (PDMS)-based slippery surfaces.","authors":"Avijeet Rai, Jitesh Barman","doi":"10.1039/d6sm00726k","DOIUrl":"https://doi.org/10.1039/d6sm00726k","url":null,"abstract":"Controlling the wetting and mobility of droplets on a state-of-the-art lubricant-coated slippery surface has broad implications in microfluidics applications. However, a study on surfactant-mediated wetting on these surfaces is still missing. In this article, we report the effect of the oil-water interfacial tension change induced by the addition of the surfactant in an aqueous droplet on the static wetting, and the dynamics of droplet mobility on a polydimethylsiloxane (PDMS)-based slippery surface. The stability analysis employing the contact angle and Hamaker's constant measurements shows the presence of a stable lubricating film underneath the surfactant droplet on the slippery surface for all the concentrations up to 1.0 cmc. Interestingly, the surfactant in an aqueous droplet on a slippery surface enhances the wettability, following a modified Young's law. In addition, we found that the droplet shedding dynamics slow down due to the addition of surfactant. Furthermore, the dynamic frictional force measurements show that the dissipation force of the surfactant aqueous droplet depends on the viscosity and the shedding speed following the universal Landau-Levich-Derjaguin (LLD) law of friction force on lubricated surfaces as FD ∼ 2πγRCa2/3. Moreover, the influence of the surfactant on the dynamic dissipation force can be interpreted by the surface tension gradient at the oil-water interface near the ridge region, inducing a Marangoni stress. These results not only validate existing theoretical models of slippery surfaces but also provide insight into the mechanism to control the wetting and mobility of surfactant droplets on these surfaces for microfluidics applications.","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148878939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phase behavior of solvent-nematogen mixtures. 溶剂线虫混合物的相行为。

IF 2.9 3区化学

Soft Matter Pub Date : 2026-09-02 DOI: 10.1039/d6sm00494f

Sullivan Bailey-Darland, Takumi Matsuzawa, Eric R Dufresne

引用次数: 0

Correlating structural and rheological properties of bulk and granular chitosan-collagen I hydrogels. 体积和颗粒壳聚糖-胶原I水凝胶的结构和流变特性。

IF 2.9 3区化学

Soft Matter Pub Date : 2026-09-02 DOI: 10.1039/d6sm00231e

Enguerran Devernois, Thibaud Coradin

{"title":"Correlating structural and rheological properties of bulk and granular chitosan-collagen I hydrogels.","authors":"Enguerran Devernois, Thibaud Coradin","doi":"10.1039/d6sm00231e","DOIUrl":"10.1039/d6sm00231e","url":null,"abstract":"Granular hydrogels resulting from the dense packing of hydrogel microparticles have recently attracted a lot of attention, both from a fundamental perspective and for application as biomaterials. However, comparisons between the properties of bulk and granular hydrogels of similar compositions remain scarce. Here we have prepared chitosan-collagen I granular hydrogels via fragmentation of bulk hydrogels and centrifugation of the resulting microparticle suspension. Microparticles exhibited a fibrillated collagen I core embedded in a chitosan shell, suggesting that the fragmentation process is controlled by the protein microstructures dispersed in the polysaccharide matrix. Rheological studies indicated that the granular hydrogels were less elastic (lower storage modulus) but more ductile (higher critical shear strain) than the corresponding bulk hydrogels. Moreover, their rheological properties were more sensitive to collagen content and collagen fiber organization, which impacted both particle compressibility and inter-particle interactions. Extension of the herein-described approach should allow us to improve our understanding of existing correlations between the mechanical properties of bulk hydrogels, hydrogel microparticles and granular hydrogels.","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" ","pages":"5776-5785"},"PeriodicalIF":2.9,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148785903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acceleration of polymer capture and translocation in oscillatory channels at certain frequencies. 特定频率下振荡通道中聚合物捕获和易位的加速。

IF 2.9 3区化学

Soft Matter Pub Date : 2026-09-02 DOI: 10.1039/d6sm00333h

Bo Peng, Yujie Li, Yuyuan Lu, Lijun Liu, Dapeng Wang

{"title":"Acceleration of polymer capture and translocation in oscillatory channels at certain frequencies.","authors":"Bo Peng, Yujie Li, Yuyuan Lu, Lijun Liu, Dapeng Wang","doi":"10.1039/d6sm00333h","DOIUrl":"https://doi.org/10.1039/d6sm00333h","url":null,"abstract":"Elucidating the dynamic mechanisms of polymer translocation through nanochannels with channel oscillation characterized by periodic opening and closing is critical for advancing the understanding of polymer transport in confined environments and guiding the design of advanced nanofluidic systems. We employed coupled molecular dynamics and multi-particle collision dynamics simulations to investigate the influence of channel oscillation on polymer capture and translocation in varying dielectric environments. The capture probability and translocation time of polymers consistently exhibit a non-monotonic dependence on oscillation frequency. Translocation is accelerated within a certain range of the reduced oscillation frequency , with the translocation time reaching a minimum in the interval of 10-1 to 100, where  is defined as the ratio of the translocation time through a static channel to the oscillation period. This interval corresponds to the regime where the oscillation period is commensurate with the timescale of polymer translocation. Analysis indicates that periodic opening and closing of the channel generates a microflow toward the trans side via hydrodynamic interactions, driving monomers into the channel during opening and facilitating their expulsion during channel closure, thereby accelerating capture and translocation. Furthermore, it modulates polymer conformation, enhancing the driving force on polymers and further promoting translocation. Conversely, electrostatic interactions impede these processes by altering polymer conformation and introducing steric hindrance from condensed counterions. These findings reveal fundamental mechanisms of polymer dynamics in oscillatory channels and may provide insights into systems where such dynamics are a key factor, from biological pores to the design of synthetic nanochannels.","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148878854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Halogen bonds as a design element for supramolecular hydrogels: structure-gelation correlations in glycosylated N-methylhalogenomaleimide amphiphiles. 卤素键作为超分子水凝胶的设计元素：糖基化n -甲基卤基因组亚胺两亲体的结构-凝胶化关系。

IF 2.9 3区化学

Soft Matter Pub Date : 2026-09-02 DOI: 10.1039/d6sm00411c

Kotoyo Yamashita, Akitaka Ito, Masayuki Izumi, Rika Ochi

引用次数: 0

Gelation dynamics of charged colloidal rods: critical behaviour and time-connectivity superposition principle. 带电胶体棒的凝胶动力学：临界行为和时间连接叠加原理。

IF 2.9 3区化学

Soft Matter Pub Date : 2026-09-02 DOI: 10.1039/d6sm00214e

Lise Morlet-Decarnin, Thibaut Divoux, Sébastien Manneville

{"title":"Gelation dynamics of charged colloidal rods: critical behaviour and time-connectivity superposition principle.","authors":"Lise Morlet-Decarnin, Thibaut Divoux, Sébastien Manneville","doi":"10.1039/d6sm00214e","DOIUrl":"10.1039/d6sm00214e","url":null,"abstract":"Charged colloidal particles can self-assemble into gel networks upon screening of electrostatic repulsion by added salt. While gelation of spherical colloids has been extensively studied, much less is known about the gelation dynamics of anisotropic colloids. Here, we focus on cellulose nanocrystals (CNCs) as prototypical rigid, highly charged rod-like colloids. In aqueous solution with salt, CNCs display a rich phase diagram ranging from gel at low solid content to glassy phases at higher concentrations. Building on our previous work [Morlet-Decarnin et al., ACS Macro Lett., 2023, 12, 1733-1738], we present an extensive study of the mechanical recovery dynamics of CNC suspensions following strong shear. Time-resolved mechanical spectroscopy reveals a liquid-to-solid transition characterized by a well-defined critical gel point. The evolving viscoelastic spectra can be rescaled onto master curves, demonstrating a time-connectivity superposition principle and critical dynamics on both sides of the gel point. By varying the CNC weight fraction and salt concentration, we identify a boundary between gel and attractive glass states marked by clear changes in rheological observables, including the elastic and viscous moduli at the gel point and their high-frequency power-law exponents. Analysis of dynamic critical exponents and hyperscaling reveals pronounced asymmetry between pre-gel and post-gel dynamics and non-universal values of the dynamic exponent. These findings highlight gelation mechanisms specific to highly charged rod-like colloids and call for complementary microstructural characterization and theoretical modeling.","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" ","pages":"5718-5735"},"PeriodicalIF":2.9,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148758093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lateral hydrodynamics in supported membranes: the Evans-Sackmann model and its extensions. 支撑膜中的横向流体力学：Evans-Sackmann模型及其扩展。

IF 2.9 3区化学

Soft Matter Pub Date : 2026-09-02 DOI: 10.1039/d6sm00465b

Yuto Hosaka, David Andelman, Shigeyuki Komura

引用次数: 0

Light-controlled membrane remodeling in gel-fluid phase-separated giant vesicles using photoswitchable lipids. 光开关脂质在凝胶-流体相分离巨囊泡中的光控膜重构。

IF 2.9 3区化学

Soft Matter Pub Date : 2026-09-02 DOI: 10.1039/d6sm00357e

Tsu-Wang Sun, Elias Sabri, Mina Aleksanyan, Rumiana Dimova

{"title":"Light-controlled membrane remodeling in gel-fluid phase-separated giant vesicles using photoswitchable lipids.","authors":"Tsu-Wang Sun, Elias Sabri, Mina Aleksanyan, Rumiana Dimova","doi":"10.1039/d6sm00357e","DOIUrl":"10.1039/d6sm00357e","url":null,"abstract":"Photoswitchable lipids enable optical control of membrane area, mechanics and phase behavior, offering a platform to study stimuli-responsive biomimetic systems. Here we ask how the spatial organization of coexisting membrane phases governs photoinduced mechanical responses. We incorporate the photoswitch azobenzene-phosphatidylcholine (azoPC) and dipalmitoylphosphatidylcholine (DPPC) into gel-fluid phase-separated giant unilamellar vesicles (GUVs). Using differential scanning calorimetry and temperature-controlled confocal microscopy, we quantify phase transitions and visualize domain dynamics. Dispersed domains produce global GUV crumpling upon UV-light-induced trans-to-cis isomerization of azoPC, whereas coarsened fluid domains locally confine deformation to budding regions of the GUVs; both responses are reversed by blue light. Temperature-controlled imaging reveals that the gel-fluid transition in GUVs is considerably broader than the calorimetric profile suggests, with coexisting phases detectable well above the calorimetry peak transition temperature. Well above the transition temperature, i.e. in the fully melted membrane, UV irradiation unexpectedly induces reversible nucleation of gel-like flower domains, consistent with an increased transition temperature in the cis azoPC state due to lipid packing incompatibility with DPPC. Membrane domain architecture thus dictates the spatial distribution of photoinduced remodeling. More broadly, photoswitchable lipids can reversibly switch membrane phase equilibria as well as morphology, pointing to potential implications for the design of stimuli-responsive synthetic membrane systems and soft actuators.","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" ","pages":"5681-5694"},"PeriodicalIF":2.9,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148756732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0